Answer:
Conclusion:
Based on the law of syllogism, if a triangle is equilateral, then all the angles are congruent.
Step-by-step explanation:
The law of syllogism, also called reasoning by transitivity, is a valid argument form of deductive reasoning that follows a set pattern. It is similar to the transitive property of equality, which reads: if a = b and b = c then, a = c.
In syllogism, we combine two or more logical statements into one logical statement.
Statement 1:
If a triangle is equilateral, then all the sides in the triangle are congruent.
Statement 2:
If all the sides in a triangle are congruent, then all the angles are congruent.
Concluded Statement using law of syllogism:
Based on the law of syllogism, if a triangle is equilateral, then all the angles are congruent.
Answer:
Based on the law of syllogism, if a triangle is equilateral, then all the angles are congruent.
Step-by-step explanation:
took test and made 100. law of syllogism shows this to be true
7(x - 2) = 3(x + 4)
Solve the following equation. Then enter your answer in the space provided using mixed number format.
Answer:
In mixed number format: 6 1/2
Step-by-step explanation:
To solve the following equation: 7(x - 2) = 3(x + 4), first we need to apply the distributive property:
7(x - 2) = 3(x + 4) → 7x -14 = 3x + 12
Solving for 'x' → 4x = 26 → x = 6.5
→ In mixed number format: 6 1/2
For this case we must solve the following equation:
[tex]7 (x-2) = 3 (x + 4)[/tex]
Applying distributive property to the terms within the parenthesis we have:
[tex]7x-14 = 3x + 12[/tex]
We subtract 3x on both sides of the equation:
[tex]7x-3x-14 = 12\\4x-14 = 12[/tex]
Adding 14 to both sides of the equation:
[tex]4x = 12 + 14\\4x = 26[/tex]
Dividing between 4 on both sides of the equation:
[tex]x = \frac {26} {4} = \frac {13} {2}[/tex]
ANswer:
[tex]x = \frac {13} {2}\\x = 6 \frac {1} {2}[/tex]
Which expression is equivalent to
Answer:
The correct answer is second option
4a²b²c²∛b)
Step-by-step explanation:
It is given an expression, ∛(64a⁶b⁷c⁹)
Points to remember
Identities
ⁿ√x = x¹/ⁿ
To find the equivalent expression
We have, ∛(64a⁶b⁷c⁹)
∛(64a⁶b⁷c⁹) = (64a⁶b⁷c⁹)1/3
= (4³/³ a⁶/³ b⁷/³ c⁹/³) [Since 64 = 4³]
= 4a² b² b¹/³ c³
= 4a²b²c³(b¹/³)
= 4a²b²c³ (∛b)
Therefore the correct answer is second option
4a²b²c³(∛b)
Find the derivative of the function using the definition of derivative. g(x) = 5 − x (1) Find g'(x) (2) State the domain of the function. (Enter your answer using interval notation.) (3) State the domain of its derivative. (Enter your answer using interval notation.)
Answer:
Answer is contained in the explanation
Step-by-step explanation:
[tex]g(x)=5-x\\g'(x)=\lim_{h \rightarrow 0} \frac{f(x+h)-f(x)}{h}\\g'(x)=\lim_{h \rightarrow 0} \frac{[5-(x+h)]-[5-x]}{h}\\g'(x)=\lim_{h \rightarrow 0} \frac{5-x-h-5+x}{h}\\g'(x)=\lim_{h \rightarrow 0} \frac{-h}{h}\\g'(x)=\lim_{h \rightarrow 0} -1\\g'(x)=-1[/tex]
g(x)=5-x has domain all real numbers (you can plug an a number and always get a number back)
So in interval notation this is [tex](-\infty, \infty)[/tex]
g'(x)=-1 has domain all real numbers (the original function had domain issues... and no matter the number you plug in you do get a number, that number being -1)
So in interval notation this is [tex](-\infty, \infty)[/tex]
The derivative of given function g(x) is
g'(x)=-1
Domain of function g(x) is (-∞,∞)
Domain of derivative is (-∞,∞)
Given :
[tex]g(x) = 5 - x[/tex]
Lets find derivative using definition of derivative
[tex]\lim_{h \to 0} \frac{g(x+h)-g(x)}{h} \\g(x)=5-x\\g(x+h)=5-(x+h)\\g(x+h)=5-x-h\\\lim_{h \to 0} \frac{5-x-h-(5-x)}{h} \\\\\lim_{h \to 0} \frac{5-x-h-5+x}{h} \\\\\lim_{h \to 0} \frac{-h}{h} \\\\-1[/tex]
Derivative g'(x)=-1
g(x) is a linear function . for all linear function the domain is set of all real numbers
Domain of function g(x) is (-∞,∞)
Derivative function g'(x) =-1. For all values of x the value of y is -1
So domain is set of all real numbers
Domain of derivative is (-∞,∞)
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A house was valued at $100,000 in the year 1987. The value appreciated to $165,000 by the year 2002.
Use the compound interest form S=P(1+r)^t to answer the following questions.
A) What was the annual growth rate between 1987 and 2002? (Round to 4 decimal places.)
B) What is the correct answer to part A written in percentage form?
C) Assume that the house value continues to grow by the same percentage. What will the value equal in the year 2005? (Round to the nearest thousand dollars.)
Please help ASAP I need an answer by today!!! :(
Answer:
A) The annual multiplier was 1.0339; the annual increase was 0.0339 of the value.
B) 3.39% per year
C) $182,000
Step-by-step explanation:
A) Let's let t represent years since 1987. Then we can fill in the numbers and solve for r.
165000 = 100000(1 +r)^15
1.65^(1/15) = 1 +r . . . . . divide by 100,000; take the 15th root
1.03394855265 -1 = r ≈ 0.0339
The value was multiplied by about 1.0339 each year.
__
B) The value increased by about 3.39% per year.
__
C) S = $100,000(1.03394855265)^18 ≈ $182,000
Gianna is going to throw a ball from the top floor of her middle school. When she throws the ball from 48feet above the ground, the function h(t)=−16t2+32t+48 models the height, h, of the ball above the ground as a function of time, t. Find the times the ball will be 48feet above the ground.
[tex]\bf \stackrel{height}{h(t)}=-16t^2+32t+48\implies \stackrel{48~ft}{~~\begin{matrix} 48 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix}~~}=-16t^2+32t~~\begin{matrix} +48 \\[-0.7em]\cline{1-1}\\[-5pt]\end{matrix} \\\\\\ 0=-16t^2+32t\implies 16t^2-32t=0\implies 16t(t-2)=0\implies t= \begin{cases} 0\\ 2 \end{cases}[/tex]
t = 0 seconds, when the ball first took off, and t = 2, 2 seconds later.
Answer: [tex]t_1=0\\t_2=2[/tex]
Step-by-step explanation:
We know that the function [tex]h(t)=-16t^2+32t+48[/tex] models the height "h" of the ball above the ground as a function of time "t".
Then, to find the times in which the ball will be 48 feet above the ground, we need to substitute [tex]h=48[/tex] into the function and solve fot "t":
[tex]48=-16t^2+32t+48\\0=-16t^2+32t+48-48\\0=-16t^2+32t[/tex]
Factorizing, we get:
[tex]0=-16t(t-2)\\t_1=0\\t_2=2[/tex]
A furniture manufacturer sells three types of products: chairs, tables, and beds. Chairs constitute 35% of the company's sales, tables constitute 55% of the sales, and beds constitute the rest. Of the company's chairs, 5% are defective and have to be returned to the shop for minor repairs, whereas the percentage of such defective items for tables and beds are 12% and 8% respectively. A quality control manager just inspected an item and the item was not defective. What is the probability that this item was a table? Round your result to 2 significant places after the decimal (For example, 0.86732 should be entered as 0.87).
Answer:
53.27
Step-by-step explanation:
To begin, we want to figure out what percent of products are defective and non defective, and of which type, so we can figure out probabilities. So, we start with that 5% of chairs are defective. We know that 35% of product sales are chairs, so 5% of 35% is 35%*0.05 (a percent can be divided by 100 to convert to decimals)= 1.75%. For tables, 12% of 55 is 55*0.12=6.6 percent. For beds, we first must figure out what percent of sales are beds. For this, we must take our total (100%) and subtract everything that is not beds, which is tables and chairs. This, 100-35-55=10, which is our percent of beds. Then, 8% of that is 0.8%. So, we know that the probability that an item is defective is 0.8+6.6+1.75=9.15%. The item pulled was not defective, so we want to figure out the probability of that, which would be the total-defective=100-9.15=90.85%. We then need to figure out which of that 90.85 is divided by tables, as we want to figure out what the probability of a table is. We know that 12% of tables are defective, so 100-12=88% are not. 88% of 55% is 55*0.88=48.4, so there is a 48.4% chance that if you picked out anything, it would be a non defective table. However, we are only picking things out from nondefective items, or the 90.85%. We know that 48.4 is 48.4% of 100, but we want to figure out what percent 48.4 is of 90.85. To find this, we do (48.4/90.85) * 100, which is 53.27 rounded. Feel free to ask further questions!
Question Help For the month of MarchMarch in a certain city, 5757% of the days are cloudycloudy. Also in the month of MarchMarch in the same city, 5555% of the days are cloudycloudy and foggyfoggy. What is the probability that a randomly selected day in MarchMarch will be foggyfoggy if it is cloudycloudy?
Answer: There is probability of 96.4% that a day in March will be foggy if it is a cloudy.
Step-by-step explanation:
Since we have given that
Probability of the days in March are cloudy = 57%
Probability of the cloudy days in March are foggy = 55%
Let A be the event of cloudy days in March.
Let B be the event of foggy days in March.
So, here,
P(A) = 0.57
P(A∩B) = 0.55
We need to find the probability that days are foggy given that it is cloudy.
We would use "Conditional probability":
[tex]P(B\mid A)=\dfrac{P(A\cap B)}{P(A)}=\dfrac{0.55}{0.57}=0.964=96.4\%[/tex]
Hence, There is probability of 96.4% that a day in March will be foggy if it is a cloudy.
Question 1: Factor out the Greatest
Common Factor
3t5s − 15t2s3
Question 1 options:
3(t5s − 5t2s3)
3t2(t3s − 5s3)
3t2s(t3 − 5s2)
-12t3s2
For this case we have that by definition, the GCF or (Greatest Common Factor) is given by the greatest common factor that divides both terms without leaving a residue.
15: 1,3,5,15
3: 1.3
Then we have the GCF of the expression is:
[tex]3t ^ 2s (t ^ 3-5s ^ 2)[/tex]
ANswer:
Option C
The number of bricks in the bottom row of a brick wall is 49. The next row up from the bottom contains 47 bricks, and each subsequent row contains 2 fewer bricks than the row immediately below it. The number of bricks in the top row is 3. If the wall is one brick thick, what is the total number of bricks in the wall?
Answer:
624
Step-by-step explanation:
The sequence is 49, 47, 45,...., 7, 5, 3. This is an arithmetic sequence, because the difference between terms is the same.
The sum of the first n terms of an arithmetic sequence is:
S = n/2 (a₁ + an)
where a₁ is the first term and an is the nth term.
Here, we know that a₁ = 49 and an = 3. But we need to find what n is. To do that, we use definition of an arithmetic sequence:
an = a₁ + (n-1) d
where d is the common difference (in this case, -2)
3 = 49 + (n-1) (-2)
2(n-1) = 46
n - 1 = 23
n = 24
So there are 24 terms in the sequence.
The sum is:
S = 24/2 (49 + 3)
S = 12 (52)
S = 624
There are 624 bricks in the wall.
The total number of bricks in the wall is 624. This is a math problem that involves arithmetic sequence, where each term is obtained from the previous one by subtracting a fixed number (2, in this case), and concepts from algebra (equations).
Explanation:The problem describes a scenario where each row of a brick wall has two fewer bricks than the row below it, which characterizes a sequence in mathematics. More specifically, this is an arithmetic sequence, which is characterized by a common difference between terms, in this case, the difference is -2.
To solve the problem, we need to find the sum of an arithmetic sequence. The formula of the sum is given by:
S = n/2 * (a1 + an)
Where S is the sum, n the number of terms, a1 the first term, and an the last term. Here, a1 is 49 and an is 3. To find n, we use the formula n = (a1 - an) / d + 1, with d being the common difference which is -2. Solving the equation we find that n = 24.
We now plug these values into the sum formula and find that the sum S, which represents the total number of bricks in the wall is
S = 24/2 * (49 + 3) = 12 * 52 = 624.
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when two dice are rolled, what is the probability the two numbers will have a sum of 10
A. 1/10
B.1/18
C.1/12
D.1/3
Answer:
The correct answer is option C. 1/12
Step-by-step explanation:
It is given that, two dies are rolled.
The outcomes of tossing two dies are,
(1,1), (1,2), (1,3), (1,4), (15), (1,6)
----- -------- ------ ------ ----- ----
(6,1), (6,2), (6,3), (6,4), (6,5), (6,6)
Number of possible outcomes = 36
To find the probability
The possible outcomes are getting sum 10 which are,
(4,6), (5, 5) and (6,4)
Number of possible outcomes = 3
Therefore probability of getting sum 10 = 3/36 = 1/12
The correct answer is option C. 1/12
The tread life of tires mounted on light-duty trucks follows the normal probability distribution with a population mean of 60,000 miles and a population standard deviation of 4,000 miles. Suppose we select a sample of 40 tires and use a simulator to determine the tread life. What is the likelihood of finding that the sample mean is between 59,050 and 60,950?
Answer: 0.8664
Step-by-step explanation:
Given : Mean : [tex]\mu = 60,000\text{ miles}[/tex]
Standard deviation : [tex]\sigma = 4,000\text{ miles}[/tex]
Sample size : [tex]n=40[/tex]
The formula to calculate the z-score :-
[tex]z=\dfrac{x-\mu}{\dfrac{\sigma}{\sqrt{n}}}[/tex]
For x= 59,050
[tex]z=\dfrac{59050-60000}{\dfrac{4000}{\sqrt{40}}}\approx-1.50[/tex]
For x= 60,950
[tex]z=\dfrac{60950-60000}{\dfrac{4000}{\sqrt{40}}}\approx1.50[/tex]
The P-value : [tex]P(-1.5<z<1.5)=P(z<1.5)-P(z<-1.5)[/tex]
[tex]=0.9331927-0.0668072=0.8663855\approx0.8664[/tex]
Hence, the likelihood of finding that the sample mean is between 59,050 and 60,950=0.8664
The likelihood of finding that the sample mean is between 59,050 and 60,950 miles, according to the given normal distribution, is approximately 86.64%.
Explanation:To solve this problem, we consider that the population mean is 60,000 and the standard deviation is 4,000. If we choose a sample of 40 tires, the standard deviation of the sample mean (standard error) is the standard deviation divided by the square root of the sample size (σ/√n).
This gives us 4,000/√40 = 633. The z-scores for the lower and upper bounds of our interval (59,050 and 60,950) are calculated by subtracting the population mean from these values, and dividing by the standard error. For 59,050: (59,050 - 60,000)/633 = -1.5 and for 60,950: (60,950 - 60,000)/633 = 1.5.
Using standard normal distribution tables, we know that the probability associated with a z-value of 1.5 is 0.9332. Since the normal distribution is symmetric, the probability associated with -1.5 is also 0.9332. Therefore, the probability that the sample mean lies between 59,050 and 60,950 is 0.9332 - (1 - 0.9332) = 0.8664 or approximately 86.64%.
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Last year, Susan had 10,000 to invest. She invested some of it in an account that paid 6%
simple interest per year, and she invested the rest in an account that paid 5% simple interest per year. After one year, she received a total of %560 in interest. How much did she invest in each account?
Answer:
In the account that paid 6% Susan invest [tex]\$6,000[/tex]
In the account that paid 5% Susan invest [tex]\$4,000[/tex]
Step-by-step explanation:
we know that
The simple interest formula is equal to
[tex]I=P(rt)[/tex]
where
I is the Final Interest Value
P is the Principal amount of money to be invested
r is the rate of interest
t is Number of Time Periods
Part a) account that paid 6% simple interest per year
in this problem we have
[tex]t=1\ years\\ P=\$x\\r=0.06[/tex]
substitute in the formula above
[tex]I1=x(0.06*1)[/tex]
[tex]I1=0.06x[/tex]
Part b) account that paid 5% simple interest per year
in this problem we have
[tex]t=1\ years\\ P=\$10,000-\$x\\r=0.05[/tex]
substitute in the formula above
[tex]I2=(10,000-x)(0.05*1)[/tex]
[tex]I2=500-0.05x[/tex]
we know that
[tex]I1+I2=\$560[/tex]
substitute and solve for x
[tex]0.06x+500-0.05x=560[/tex]
[tex]0.01x=560-500[/tex]
[tex]0.01x=60[/tex]
[tex]x=\$6.000[/tex]
therefore
In the account that paid 6% Susan invest [tex]\$6,000[/tex]
In the account that paid 5% Susan invest [tex]\$4,000[/tex]
Susan invested $6,000 at 6% and the remainder, $4,000, at 5% interest.
Susan invested $10,000 in two different accounts, one with a 6% simple interest and the other with a 5% simple interest. After one year, she received a total of $560 in interest. We need to find out how much she invested in each account.
Let's denote x as the amount invested at 6% and (10,000 - x) as the amount invested at 5%. Using the formula for simple interest, interest = principal × rate × time, we can set up two equations based on the given information:
The interest from the account with 6% interest: 0.06 × x
The interest from the account with 5% interest: 0.05 × (10,000 - x)
The sum of these interests is $560, so the equation is:
0.06x + 0.05(10,000 - x) = 560
Now we solve for x:
0.06x + 500 - 0.05x = 560
0.01x = 60
x = 60 / 0.01
x = $6,000
Therefore, Susan invested $6,000 at 6% and the remainder, $4,000, at 5% interest.
What is the simplest form of
Answer:
The simplest form of [tex]\sqrt[3]{27a^{3}b^{7}}[/tex] is
3ab²(∛b)
Step-by-step explanation:
The given term is:
[tex]\sqrt[3]{27a^{3}b^{7}}[/tex]
To convert it into its simplest form, we will apply simple mathematical rules to simplify the power of individual terms.
[tex]\sqrt[3]{27a^{3}b^{7}}\\= \sqrt[3]{3^{3} a^{3}b^{7}}\\= \sqrt[3]{3^{3}a^{3}b^{6}b}\\= 3^{3/3} a^{3/3}b^{6/3}b^{1/3}}\\= 3ab^{2}(\sqrt[3]{b})[/tex]
While simplifying the term, we basically took the cube root of individual terms. The powers cancelled out cube root for some terms. In the end, we were left with the simplest form of the expression.
Lines a and b are parallel. Line c is perpendicular to both line a and line b. Which statement about lines a, b, and c is NOT true?
Line a and line b have the same slope.
The sum of the slopes of line b and line c is 0.
The product of the slopes of line c and line b is −1.
The product of the slopes of line a and line c is −1.
m + (-1/m) ≠ 0
⇒ The sum of the slopes of line b and line c is 0.
⇒ False ⇒ NOT true
Answer:
The sum of the slopes of line b and line c is 0.
Step-by-step explanation:
Remember that the product of the slopes of two parallel lines is -1, so in order to be -1 you have to multiply M*-1/m=-1 so since to add them up you would do it like this m+(-1/m) taht wouldn´t get as result 0, so that would be the option that is not correct, remember that parallel lines have the same slope, so that also eliminates all of the other options.
Write 1.052 as a percent
1.052 is equal to 105.2 percent.
Given that a decimal number 1.052, we need to write 1.052 as a percent,
To express a decimal number as a percent, you need to multiply it by 100.
Let's calculate 1.052 as a percent:
1.052 x 100 = 105.2
To understand this, let's break it down:
The number 1.052 represents 105.2% because it is greater than 1 (100%). By multiplying it by 100, we shift the decimal point two places to the right, resulting in 105.2.
In percentage terms, 105.2% means that 1.052 is 105.2 parts out of 100. This can also be interpreted as 105.2 per hundred or simply 105.2 out of every 100 units.
Therefore, 1.052 can be written as 105.2%.
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What is the future value of $510 per year for 8 years compounded annually at 9 percent?
The future value of $510 per year for 8 years compounded annually at 9 percent is $1,016.21.
What is the future value?The investment's future value refers to the compounded value of the present cash flows in the future, using an interest rate.
The future value can be determined using the future value table or formula.
We can also determine the future value using an online finance calculator as below.
Data and Calculations:N (# of periods) = 8 years
I/Y (Interest per year) = 9%
PV (Present Value) = $510
PMT (Periodic Payment) = $0
Results:
FV = $1,016.21 ($510 + $506.21)
Total Interest = $506.21
Thus, the future value of $510 per year for 8 years compounded annually at 9 percent is $1,016.21.
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Suppose we wanted to differentiate the function h(x)= (5 - 2 x^6)^3 +1/(5 - 2 x^6) using the chain rule, writing the function h (x) as the composite function h(x)= f(g(x)). Identify the functions f (x) and g (x). f (x) = g (x) = Calculate the derivatives of these two functions f '(x) = g '(x) = Now calculate the derivative of h (x) using the chain rule
[tex]h(x)=(5-2x^6)^3+\dfrac1{5-2x^6}[/tex]
Let [tex]g(x)=5-2x^6[/tex] and [tex]f(x)=x^3+\dfrac1x[/tex]. Then [tex]h(x)=f(g(x))[/tex].
Set [tex]u=5-2x^6[/tex]. By the chain rule,
[tex]\dfrac{\mathrm dh}{\mathrm dx}=\dfrac{\mathrm dh}{\mathrm du}\cdot\dfrac{\mathrm du}{\mathrm dx}[/tex]
Since [tex]h(u)=u^3+\dfrac1u[/tex] and [tex]u(x)=5-2x^6[/tex], we have
[tex]\dfrac{\mathrm dh}{\mathrm du}=3u^2-\dfrac1{u^2}[/tex]
[tex]\dfrac{\mathrm du}{\mathrm dx}=-12x^5[/tex]
Then
[tex]\dfrac{\mathrm dh}{\mathrm dx}=\left(3u^2-\dfrac1{u^2}\right)(-12x^5)=\boxed{-12x^5\left(3(5-2x^6)^2-\dfrac1{(5-2x^6)^2}\right)}[/tex]
which we could rewrite slightly as
[tex]\dfrac{\mathrm dh}{\mathrm dx}=-\dfrac{12x^5(3(5-2x^6)^4-1)}{(5-2x^6)^2}[/tex]
To differentiate the given function using the chain rule, we need to identify the functions f(x) and g(x), then calculate their derivatives. Once we have the derivatives, we can apply the chain rule to find the derivative of the composite function h(x).
Explanation:Chain Rule
To differentiate the function h(x) = (5 - 2x^6)³ + 1/(5 - 2x^6) using the chain rule, we can write it as the composite function h(x) = f(g(x)).
Let's identify the functions f(x) and g(x):
f(x) = x³, g(x) = (5 - 2x^6)
Next, let's calculate the derivatives of f(x) and g(x):
f'(x) = 3x², g'(x) = -12x^5
Finally, we can apply the chain rule to differentiate h(x):
h'(x) = f'(g(x)) * g'(x) = (3(5 - 2x^6)²) * (-12x^5)
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Solve the system y = -x + 7 and y= 0.5(x - 3)2
Answer:
The solutions of the system of equations are (-1,8) and (5,2)
Step-by-step explanation:
[tex]y=-x+7[/tex] -------> equation A (equation of a line)
[tex]y=0.5(x-3)^{2}[/tex] ----> equation B (vertical parabola open upward)
Solve the system of equations by graphing
Remember that the solution is the intersection points both graphs
using a graphing tool
The intersection points are (-1,8) and (5,2)
see the attached figure
therefore
The solutions of the system of equations are (-1,8) and (5,2)
Answer: (-1,8) and (5,2)
Step-by-step explanation: The person above me is correct. Give him five stars and a thanks!
Federal Rent-a-Car is putting together a new fleet. It is considering package offers from three car manufacturers. Fred Motors is offering 5 small cars, 5 medium cars, and 10 large cars for $500,000. Admiral Motors is offering 5 small, 10 medium, and 5 large cars for $400,000. Chrysalis is offering 10 small, 5 medium, and 5 large cars for $300,000. Federal would like to buy at least 700 small cars, at least 600 medium cars, and at least 700 large cars. How many packages should it buy from each car maker to keep the total cost as small as possible?
Answer:
40 packages from Fred Motors20 packages from Admiral Motors40 packages from ChrysalisStep-by-step explanation:
I would formulate the problem like this. Let f, a, c represent the numbers of packages bought from Fred Motors, Admiral Motors, and Chrysalis, respectively. Then the function to minimize (in thousands) is …
objective = 500f +400a +300c
The constraints on the numbers of cars purchased are …
5f +5a +10c >= 700
5f +10a +5c >= 600
10f +5a +5c >= 700
Along with the usual f >=0, a>=0, c>=0. Of course, we want all these variables to be integers.
Any number of solvers are available in the Internet for systems like this. Shown in the attachments are the input and output of one of them.
The optimal purchase appears to be …
40 packages from Fred Motors20 packages from Admiral Motors40 packages from ChrysalisThe total cost of these is $40 million.
This is a linear programming problem that requires to minimize a cost function subject to several constraints about the total number of small, medium, and large cars in the fleet. It can be set up using the system of inequalities and then solved using methods like the Simplex one.
Explanation:This problem can be solved through linear programming, which involves creating a system of inequalities to represent the constraints of the problem, and then optimizing a linear function. To start, let's define the variables: x is the number of packages bought from Fred Motors, y is the number from Admiral Motors, and z is the number from Chrysalis.
The fleet requirements translate to the following constraints: 5x + 5y + 10z ≥ 700 (small cars), 5x + 10y + 5z ≥ 600 (medium cars), and 10x + 5y + 5z ≥ 700 (large cars).
Then, the cost to minimize is: $500,000x + $400,000y + $300,000z.
This is a linear programming problem and can be solved using various methods, such as the Simplex method or graphically. Exact solutions would require a more detailed analysis.
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College algebra homework review... Having issues calculating this by hand and on TI-84 receiving errors like "8e12" when trying to calculate the actual quadratic equation it calls for in question B.... Please help
checking the vertex of this upside-down parabola, it has a vertex at (1000, 2000000), so that's the U-turn, when as the price "p" increases the revenue goes down.
[tex]\bf \textit{vertex of a vertical parabola, using coefficients} \\\\ y=\stackrel{\stackrel{a}{\downarrow }}{a}x^2\stackrel{\stackrel{b}{\downarrow }}{+b}x\stackrel{\stackrel{c}{\downarrow }}{+c} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right)[/tex]
now, if we solve the quadratic using the value of 500000
[tex]\bf \stackrel{R(p)}{500000}=-2p^2+4000p\implies 250000=-p^2+2000p \\\\\\ p^2-2000p+250000=0[/tex]
and we run the quadratic formula on it, we get the values of x = 133.97 and x = 1866.03, one value is obviously when going upwards, the first one, and the other is when going downwards.
so we know that the R(p) is 500,000 at x = 133.97, and it keeps on going up, up to the vertex above at x = 1000, so we can say from x = [134, 1000] R(p) > 500000.
Can I get these solved so I will have the points to mark them on a graph?
Y = -2X + 2
X + 3Y = -4
Answer:
points on the first line: (0, 2), (1, 0)points on the second line: (-4, 0), (-7, 1)Step-by-step explanation:
For equations like these, where the coefficient of one of the variables is 1, it is convenient to choose values for the other variable. Values of 0 and 1 are usually easy to work with.
In the first equation, ...
for x=0, y = 2 . . . . . . . . . point (0, 2)
for x=1, y = -2+2 = 0 . . . point (1, 0)
In the second equation, ...
for y=0, x = -4 . . . . . . . . . point (-4, 0)
for y=1, x +3 = -4, so x = -7 . . . . point (-7, 1)
Four different prime numbers, each less than 20, are multiplied together. What is greatest possible result?
a. 21,879
b. 28,728
c. 40,755
d. 46,189
e. 49,172
Please show me how I can solve this!!
Answer:
46,189
Step-by-step explanation:
The prime numbers that are less than 20 are :
1,2,3,5,7,11,13,17,19
to get the greatest value, we multiply the four numbers with the largest values i.e
11 x 13 x 17 x 19 = 46,189
The greatest possible product of four different prime numbers each less than 20 is found by multiplying the four largest primes in that range: 19, 17, 13, and 11, which equals 46,189.
Explanation:To find the greatest possible product of four different prime numbers each less than 20, we should choose the four largest prime numbers in that range. The largest primes less than 20 are 19, 17, 13, and 11. Multiplying these together gives us:
19 \times 17 \times 13 \times 11 = 46,189.
Thus, the greatest possible result when multiplying four different prime numbers, each less than 20, is 46,189, which matches option 'd'.
A motorboat travels 180 km in 3 hours going upstream and 504 in 6 hours going downstream. What is the rate of the boat in still water and what is the rate of the current?
Answer:
Speed of boat x = 84 km/hr
Speed of current = 12 km/hr
Step-by-step explanation:
Let 'x' be the speed of boat and 'y' be the speed of still water
Upstream speed = x - y and
Downstream speed = x + y
It is given that, A motorboat travels 180 km in 3 hours going upstream and 504 in 6 hours going downstream
Upstream speed = x - y = 180/3 = 60 km/hr
Downstream speed = x + y = 504/6 = 84 km/hr
To find the value of x and y
x + y = 84 ----(1)
x - y = 60 ----(2)
(1) + (2) ⇒
x + y = 84 ----(1)
x - y = 60 ----(2)
2x + 0 = 144
x = 144/2 = 72
x + y = 84
y = 84 - 72 = 12
Therefore speed of boat x = 84 km/hr
Speed of current = 12 km/hr
evaluate the logarithmic expression.
Answer:
Step-by-step explanation:
I'm making the assumption you are looking for a graph of y=log_3(x)
So 3^0=1 which means log_3(1)=0 graph (1,0)
3^1=3 which means log_3(3)=1 graph (3,1)
3^2=9 which means log_3(9)=2 graph (9,2)
3^3=27 which means log_3(27)=3 graph (27,3)
Can you find a graph that fits these points?
A town's January high temperatures average 36degreesF with a standard deviation of 8degrees, while in July the mean high temperature is 72degrees and the standard deviation is 9degrees. In which month is it more unusual to have a day with a high temperature of 57degrees? Explain.
Answer: July
Step-by-step explanation:
Formula of z score :
[tex]z=\dfrac{X-\mu}{\sigma}[/tex]
Given: The mean high temperature in January = [tex]\mu_1=36^{\circ} F[/tex]
Standard deviation : [tex]\sigma_1=8^{\circ}F[/tex]
For X = [tex]57^{\circ}F[/tex]
[tex]z=\dfrac{57-36}{8}=2.625[/tex]
The mean high temperature in July = [tex]\mu_1=72^{\circ} F[/tex]
Standard deviation : [tex]\sigma_1=9^{\circ}F[/tex]
[tex]z=\dfrac{57-72}{8}=-1.875[/tex]
⇒ 57° F is about 2.6 standard deviations above the mean of January high temperatures, and 57° F is about 1.9 standard deviations below the mean of July’s high temperatures.
A general rule says that z-scores lower than -1.96 or higher than 1.96 are considered unusual .
Hence, the 57˚F is more unusual in January.
Final answer:
A high temperature of 57 degrees is more unusual in January than in July, as it is 2.625 standard deviations above the January mean, compared to 1.667 standard deviations below the July mean.
Explanation:
To determine in which month it is more unusual to have a high temperature of 57 degrees Fahrenheit, we can calculate the z-score for each month. The z-score tells us how many standard deviations away from the mean a particular value is.
For January, the z-score is calculated as follows:
Z = (57 - 36) / 8 = 21 / 8 = 2.625
This means that a temperature of 57 degrees in January is 2.625 standard deviations above the January mean.
For July, the z-score is calculated as follows:
Z = (57 - 72) / 9 = -15 / 9 = -1.667
This means that a temperature of 57 degrees in July is 1.667 standard deviations below the July mean.
Since the absolute value of the January z-score (2.625) is higher than the absolute value of the July z-score (-1.667), a high temperature of 57 degrees is more unusual in January than in July.
Line m is parallel to line n. The measure of angle 3 is 86. What is the
measure of angle 5?
OA) 86
OB) 104°
OC) 94°
OD) 75
(Kinda hard to read sorry)
Answer:
C.94
Step-by-step explanation:
The alternate interior angle of angle c is angle 6. So from there you just subtract the 84 from the 180 to get the 94 degrees.
Identify the parameters p and n in the following binomial distribution scenario. The probability of winning an arcade game is 0.718 and the probability of losing is 0.282. If you play the arcade game 20 times, we want to know the probability of winning more than 15 times. (Consider winning as a success in the binomial distribution.)
Answer:
p = 0.718 and n = 20
Step-by-step explanation:
p is the probability of success and n is the number of trials.
Here, p = 0.718 and n = 20.
Answer:
There is a 29.50% probability of winning more than 15 times.
Step-by-step explanation:
For each time you play the arcade game, there are only two possible outcomes. Either you win, or you lose. This means that we can solve this problem using the binomial probability distribution.
Binomial probability distribution
The binomial probability is the probability of exactly x successes on n repeated trials, and X can only have two outcomes.
[tex]P(X = x) = C_{n,x}.p^{x}.(1-p)^{n-x}[/tex]
In which [tex]C_{n,x}[/tex] is the number of different combinatios of x objects from a set of n elements, given by the following formula.
[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]
And p is the probability of X happening.
In this problem we have that:
The probability of winning a game is 0.718. So [tex]p = 0.718[/tex].
The game is going to be played 20 times, so [tex]n = 20[/tex].
If you play the arcade game 20 times, we want to know the probability of winning more than 15 times.
This is
[tex]P(X > 15) = P(X = 16) + P(X = 17) + P(X = 18) + P(X = 19) + P(X = 20) = 0.2950[/tex].
There is a 29.50% probability of winning more than 15 times.
According to the research, 43% of homes sold in a certain month and year were purchased by first-time buyers. A random sample of 165 people who just purchased homes is selected. Complete parts a through e below. what is the probabilty that less than 75 of them are first time buyers
Answer Do it
Step-by-step explanation 165 divided by 100 =x times 43
Use f’( x ) = lim With h ---> 0 [f( x + h ) - f ( x )]/h to find the derivative at x for the given function. 5-x²
The derivative of the function f(x) is:
[tex]f'(x)=-2x[/tex]
Step-by-step explanation:We are given a function f(x) as:
[tex]f(x)=5-x^2[/tex]
We have:
[tex]f(x+h)=5-(x+h)^2\\\\i.e.\\\\f(x+h)=5-(x^2+h^2+2xh)[/tex]
( Since,
[tex](a+b)^2=a^2+b^2+2ab[/tex] )
Hence, we get:
[tex]f(x+h)=5-x^2-h^2-2xh[/tex]
Also, by using the definition of f'(x) i.e.
[tex]f'(x)= \lim_{h \to 0} \dfrac{f(x+h)-f(x)}{h}[/tex]
Hence, on putting the value in the formula:
[tex]f'(x)= \lim_{h \to 0} \dfrac{5-x^2-h^2-2xh-(5-x^2)}{h}\\\\\\f'(x)=\lim_{h \to 0} \dfrac{5-x^2-h^2-2xh-5+x^2}{h}\\\\i.e.\\\\f'(x)=\lim_{h \to 0} \dfrac{-h^2-2xh}{h}\\\\f'(x)=\lim_{h \to 0} \dfrac{-h^2}{h}+\dfrac{-2xh}{h}\\\\f'(x)=\lim_{h \to 0} -h-2x\\\\i.e.\ on\ putting\ the\ limit\ we\ obtain:\\\\f'(x)=-2x[/tex]
Hence, the derivative of the function f(x) is:
[tex]f'(x)=-2x[/tex]
Answer:
The derivative of given function is -2x.
Step-by-step explanation:
The first principle of differentiation is
[tex]f'(x)=lim_{h\rightarrow 0}\frac{f(x+h)-f(x)}{h}[/tex]
The given function is
[tex]f(x)=5-x^2[/tex]
[tex]f'(x)=lim_{h\rightarrow 0}\frac{5-(x+h)^2-(5-h^2}{h}[/tex]
[tex]f'(x)=lim_{h\rightarrow 0}\frac{5-(x^2+2xh+h^2)-5+h^2}{h}[/tex]
[tex]f'(x)=lim_{h\rightarrow 0}\frac{5-x^2-2xh-h^2-5+h^2}{h}[/tex]
[tex]f'(x)=lim_{h\rightarrow 0}\frac{-x^2-2xh}{h}[/tex]
[tex]f'(x)=lim_{h\rightarrow 0}\frac{-x^2}{h}-\frac{2xh}{h}[/tex]
[tex]f'(x)=lim_{h\rightarrow 0}\frac{-x^2}{h}-2x[/tex]
Apply limit.
[tex]f'(x)=\frac{-x^2}{0}-2x[/tex]
[tex]f'(x)=0-2x[/tex]
[tex]f'(x)=-2x[/tex]
Therefore, the derivative of given function is -2x.
Two shipments of components were received by a factory and stored in two separate bins. Shipment I has 2% of its contents defective, while shipment II has 5% of its contents defective. It is equally likely an employee will go to either bin and select a component randomly. Use Bayes' Rule to find the probability that a defective component came from shipment II.
The probability that a defective component came from shipment II is:
[tex]0.7143\ or\ 71.43\%[/tex]
Step-by-step explanation:Let A denote the event that the defective component was from shipment I
Also, P(A)=2%=0.02
and B denote the event that the defective component was from shipment II.
i.e. P(B)=5%=0.05
Also, P(shipment I is chosen)=1/2=0.5
and P(shipment II is chosen)=1/2=0.5
The probability that a defective component came from shipment II is calculated by Baye's rule as follows:
[tex]=\dfrac{\dfrac{1}{2}\times 0.05}{\dfrac{1}{2}\times 0.02+\dfrac{1}{2}\times 0.05}}\\\\\\=\dfrac{0.05}{0.07}\\\\=\dfrac{5}{7}\\\\=0.7143\ or\ 71.43\%[/tex]
Hence, the answer is:
[tex]0.7143\ or\ 71.43\%[/tex]
By applying Bayes' Rule, we can compute the probability that a defective component came from shipment II as approximately 71.4%.
Explanation:Given that there are two shipments of components both containing defective parts, we can apply the Bayes' Rule to answer your question.
Let's assume that D is the event that a component is defective and I and II are events that the component came from shipment I and shipment II respectively. Since the defective component can come from either shipment with equal probability, P(I) = P(II) = 0.5. Also, it's given that the component is defective, so P(D) = 1.
The probability that a component from shipment I is defective, P(D/I), is 2% or 0.02 and from shipment II is 5% or 0.05. We want to find the probability that a defective component came from shipment II, or P(II/D).
To do this, we use Bayes' Rule: P(II/D) = [P(D/II) * P(II)] / P(D).
Substituting the values in, we get: P(II/D) = [0.05 * 0.5] / [0.5 * (0.02 + 0.05)] = 0.0625 / 0.035 = ~0.714. So the probability that a defective component came from shipment II is approximately 0.714 or 71.4%.
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