Answer: x+7
Step-by-step explanation:
Taylor has x number of cats. Because we do not know how many cats they have combined, or the number of cats Taylor has, we can only simplify it to x+7. Therefore, x+7= the number of Staci's cats. Hope that helps! :)
A medium sized apple has 70 calories. This is 10 calories less than 1\4 of the calories in an old westie chocolate bar.How many calories are in the chocolate bar?
Answer:
[tex]\boxed{320}[/tex]
Step-by-step explanation:
Let x = calories in chocolate bar
¼x = ¼ of the calories
¼x – 10 = 10 calories less than half the calories
¼x – 10 = 70
¼x = 80
x = 320
There are [tex]\boxed{320}[/tex] calories in the chocolate bar.
Find the value of y. Round to the nearest tenth
The answer is:
The first option,
[tex]y=3.5[/tex]
Why?To solve the problem, we need to follow the next steps:
- Set your calculator in degree mode to calculate Cos(64°)
- Isolate Y by multiplying each side of the equation by 8.
Solving we have:
[tex]Cos(64\°)=\frac{y}{8}\\\\0.44=\frac{y}{8}[/tex]
Multiplying each side of the equation by 8, we have:
[tex](0.44)*8=\frac{y}{8}*8\\3.52=y[/tex]
[tex]y=3.52[/tex]
Rounding to the nearest tenth, we have:
[tex]y=3.5[/tex]
Hence, the answer is the first option,
[tex]y=3.5[/tex]
Have a nice day!
6^(x-8) =730
need to show work, please show me how
Answer:
Step-by-step explanation:
X=15
Answer:
Step-by-step explanation:
[tex]log_6 6^{(x-8)} = log_6 730\\x-8 = log_6 730\\x= 8+log_6 730[/tex]
Instructions: Select the correct answer.
Vector u has a magnitude of 5 units and a direction angle of 30°. Vector v has a magnitude of 7 units and a direction angle of 120°. What is the direction angle of their vector sum?
A.) 82.21°
B.) 84.46°
C.) 85.11°
D.) 86.13°
Answer:
84.463°
Step-by-step explanation:
Determine the x- and y-components of these two vectors. Sum up the x-comps and the y-comps separately, and then find the magnitude and direction of the vector sum:
x-comps:
5 cos 30° + 7 cos 120° = 5(0.866) + 7(-0.5) = 0.83
y-comps:
5 sin 30° + 7 sin 120° = 5(0.5) + 7(0.866) = 2.5 + 6.062 = 8.562
Both components are in Quadrant I, so the direction angle ∅ is between 0° and 90°: ∅ = arcctan 8.562/0.83 = arctan 10.316 = 1.474 radian, or
1.474 rad 180°
-------------- * ----------- = 84.463°
1 π
Please help me out with this!!
BRAINLIEST AVAILABLE!!
Answer:
xy = 1
k = 79
Step-by-step explanation:
Question One
The first and third frames look to me to be the same. I'll treat them that way.
y = x^2 Equate y = x^2 to the result of 2y + 6 = 2x + 6
2y + 6 = 2(x + 3) Remove the brackets
2y + 6 = 2x + 6 Subtract 6 from both sides
2y = 2x Divide by 2
y = x
Now solve these two equations.
so x^2 = x
x > 0
1 solution is x = 0 from which y = 0. This won't work. x must be greater than 0. So the other is
x(x) = x Divide both sides by x
x = 1
y = x^2 Put x = 1 into x^2
y = 1^2 Solve
y = 1
The second solution is
(1,1)
xy = 1*1
xy = 1
Answer: A
Question Two
square root(k + 2) - x = 0
Subtract x from both sides
sqrt(k + 2) = x Square both sides
k + 2 = x^2 Let x = 9
k + 2 = 9^2 Square 9
k + 2 = 81
k = 81 - 2
k = 79
Expand: (3x + 4)(2x − 5)
12x − 10x
6x^2 −7x − 20
6x^2 − 20
5x − 1
Simplify: (3x + 2y) - (x + 2y)
4x + 4y
4x
2x
2x + 4y
If 1/2x + 2/3y = 6, what is 3x + 4y?
12
18
36
24
In the polynomial 4x^3 + 5x^2 − 12, what is the coefficient of the x^2 term?
5
0
-12
4
Evaluate f(x) = 4x + 3x^2 − 5 when x = -2.
-25
23
-49
-1
the expanded form of (3x + 4)(2x − 5) is 6x² - 7x - 20. The third option is the correct option.
The simplified form of (3x + 2y) - (x + 2y) is 2x. The correct option is the third option.
3x + 4y equals 36. The third option is the correct option.
To evaluate f(x) = 4x + 3x² - 5, f(x) evaluates to -1. The last option is the correct option.
The Breakdown
To expand the expression (3x + 4)(2x − 5), you can use the distributive property:
(3x + 4)(2x − 5) = 3x(2x) + 3x(-5) + 4(2x) + 4(-5)
Now, simplify each term:
= 6x² - 15x + 8x - 20
Combine like terms:
= 6x² - 7x - 20
So, the expanded form is 6x² - 7x - 20.
To simplify the expression (3x + 2y) - (x + 2y), we can remove the parentheses and combine like terms:
(3x + 2y) - (x + 2y) = 3x + 2y - x - 2y
The terms "2y" and "-2y" cancel each other out:
= 3x - x
Simplifying further:
= 2x
Therefore, the simplified form of (3x + 2y) - (x + 2y) is 2x.
To find the value of 3x + 4y, we need to solve the given equation and then substitute the values into the expression.
Given: 1/2x + 2/3y = 6
To eliminate the fractions, we can multiply the entire equation by the least common multiple (LCM) of the denominators, which is 6:
6 × (1/2x + 2/3y) = 6 × 6
This simplifies to:
3x + 4y = 36
Therefore, 3x + 4y equals 36.
To evaluate f(x) = 4x + 3x² - 5 when x = -2, we substitute -2 for x in the expression:
f(-2) = 4(-2) + 3(-2)² - 5
Simplifying:
f(-2) = -8 + 3(4) - 5
f(-2) = -8 + 12 - 5
f(-2) = -1
Therefore, when x = -2, f(x) evaluates to -1.
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
The number generator is fair. it picked the approximate percentage of red most of the time.
Answer:
The number generator is fair, It picked the approximate percentage of red s*ckers most of the time.
Step-by-step explanation:
7*3+9*3+8*4 = 80
80 divided by 10 gives you an average of 8 red s*ckers each time which is exactly 80% of the amount of s*ckers picked
(s*ckers is banned for some reason)
what is the solution for the system of equations?
y= 2x - 3
4x - 3y = 31
Answer:
It is easy it is a 2 step equation if you know the 2 four boxes
Step-by-step explanation:
is the variable alone?
No
what is it attached to?
you always do adding or subtracting first so it is attached to 3
How is it attached?
by subtraction
what is the inverse operation?
it is addition
then all you do is the same thing but with multiplication or division
Answer:
Use Substitution.
Plug in 2x-3 in place of y in the second equation.
4x - 3(2x-3) = 31
4x - 6x + 9 =31
-9 -9
-----------------------
-2x=22 so x=-11
Then, y=2(-11)-3, so y=-25
So the solution would be (-11,-25).
The focus for this parabola is (-1,0)
[tex]x=\frac{1}{4} y^2[/tex]
A. True
B. False
Answer:
it's false
Step-by-step explanation:
If you have the equation of a parabola in vertex form y=a(x−h)^2+k, then the vertex is at (h,k) and the focus is (h,k+14a).
In this case, h = 0,k = 0 and a = 1/4
Then the focus is at (h, k +14a) = (0, 0 + 14*1/4) = ( 0, 1)
So, it's false.
Answer:
false
Step-by-step explanation:
Chose a prize and explain your reasoning:
1st prize: $250000 in cash
2nd prize: free gas for life
Answer:
1st prize
Step-by-step explanation:
Not all people use a car. Some people walk, take a bike, etc. So, if you won free gas for life, you might not be able to use it.
1st prize. To decide between $250,000 in cash or free gas for life, one must analyze projected gas consumption, inflation, and investment opportunities. The cash offers immediate value and investment potential, whereas the value of free gas depends on driving habits and future fuel prices.
When presented with the options of receiving a 1st prize of $250,000 in cash or a 2nd prize of free gas for life, a comparative analysis based on present value, inflation, personal consumption, and lifestyle must be conducted. The choice primarily depends on one's driving habits, projected longevity of vehicle use, and the current and forecasted price of gas.Concretely, one could estimate the amount of gas consumed annually and project this over an expected driving lifetime, accounting for inflation and potential changes in fuel costs. Then one would compare the total estimated value of free gas to the lump sum of $250,000, determining if it could be invested to yield a greater return than the estimated value of the free gas.Using a net present value calculation, if the $250,000 is invested at an assumed interest rate, you could assess which option has a higher present value, factoring in that the value of the money may also depreciate due to inflation over time. If an individual expects to drive significantly and fuel prices are expected to rise, the free gas for life could potentially be of greater value.However, the flexibility of cash and potential returns on investment typically make the cash prize more appealing for most people. So, 1st prize.PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Suppose a normal distribution has a mean of 16 and a standard deviation of 4.
A value of 26 is how many standard deviations away from the mean?
Answer: d) 2.5
Step-by-step explanation:
The mean is 16 so it has a z-score is 0
The standard deviation is 4 so:
z-score of 1 is: 16 + 4 = 20z-score of 2 is: 20 + 4 = 24z-score of 3 is: 24 + 4 = 28Notice that 26 is between the z-scores of 2 and 3 = 2.5
Algebraically: [tex]\dfrac{26-16}{4}=\dfrac{10}{4}=2.5[/tex]
A (1, 1)
B (2, 3)
C (5, 3)
Parallelogram ABCD has the coordinates shown.
Find the coordinates of point D.
Answer:
D(4, 1)
Step-by-step explanation:
The two diagonals have the same midpoint, so ...
(A+C)/2 = (B+D)/2
A+C = B+D . . . . multiply by 2
A+C-B = D . . . . . subtract B
D = (1, 1) + (5, 3) - (2, 3) = (1+5-2, 1+3-3)
D = (4, 1)
Answer:
D(4 ; 1)
Step-by-step explanation:
vector(AB)=(2-1 ; 3-1) = (1 ; 2)
vector(DC)=(5-x ; 3-y) and D(x ; y )
ABCD parallelogram :vector(AB)=vector(DC)
you have the system : 5-x =1
3-y =2
so : x=4 and y=1
D(4 ; 1)
hot tub depot has a new promotional payment plan. all purchases can be made on the installment plan with no interest as long as the total is paid in full within 12 months there is a $25 minimum monthly payment required.
A) if the haugh family buys a hot tub for $4,355 and make only the minimum payment for 11 months how much will they need to pay in the 12th month?
B) what should they pay every month?
PLEASE SHOW ALL WORK!
Answer: $4080
Step-by-step explanation: 25 x 11 = 275, 4355-275 = 4080
The Haugh family will need to pay $4,080 in the 12th month if they make only the minimum payment for 11 months. The monthly payment they should pay is $362.92 (rounded to the nearest cent).
Explanation:A) To find out how much the Haugh family will need to pay in the 12th month if they make only the minimum payment for 11 months, we need to calculate the remaining balance after 11 months. The total cost of the hot tub is $4,355. The minimum monthly payment is $25, so the remaining balance after 11 months is $4,355 - 11 * $25 = $4,080. Therefore, the Haugh family will need to pay $4,080 in the 12th month.
B) To calculate the monthly payment, we divide the total cost of the hot tub by the number of months (12). So, the monthly payment is $4,355 / 12 = $362.92. However, since there is a minimum payment requirement of $25, the Haugh family should pay $362.92 each month (rounded to the nearest cent).
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Which expressions are equivalent?
3x - 7y and -7y + 3x
3x - 7y and 7y - 3x
3x - 7y and 3y - 7x
3x - 7y and -3y + 7x
im pretty sure it's the first option.
Answer:
#1) is right
Step-by-step explanation:
A catch and release fisherman catches a fish and then releases the fish back into the river so as to not to harm the fish.
At a local river, 50% of the fish are white sturgeon, 35% brook trout, and 15% Chinook salmon.
If a fisherman catches then releases a fish and then catches and releases a second fish, then what is the probability that both fish he caught were white sturgeon?
Answer:
25%
Step-by-step explanation:
Assuming the catching of a fish is a random process and that the probability of catching any of the listed kinds of fish is proportional to their population, then the probability of catching a sturgeon is 50%. The probability of catching another one is also 50% (assuming the events are independent). So, the joint probability is the product of these:
0.50 × 0.50 = 0.25 = 25% . . . . . probability of catching 2 sturgeon in a row.
The probability of both fish being white sturgeon is 0.25.
To calculate the probability, we need to multiply the probabilities of catching a white sturgeon each time. Since 50% of the fish are white sturgeon, the probability of catching one is 0.5. Therefore, 0.5 multiplied by 0.5 equals 0.25.
Find the slope of each line.
through (-2,7) and (4,1)
the answer would be 3 I believe
1-7=
-6
4-(-2)=
6
-6/6=
-1
The slope is -1
If a computer depreciates at a rate of 24% per year, what is the monthly depreciation rate?
8.17%
6.33%
4.33%
2.00%
I believe the correct answer is 4.33%.
Answer:
2.00%
Step-by-step explanation:
Find the area of a circle with a circumference of \blueD{31.4}31.4start color blueD, 31, point, 4, end color blueD units.
Answer:
The area of the circle is [tex]78.5\ units^{2}[/tex]
Step-by-step explanation:
step 1
Find the radius of the circle
we know that
The circumference of a circle is equal to
[tex]C=2\pi r[/tex]
we have
[tex]C=31.4\ units[/tex]
assume
[tex]\pi=3.14[/tex]
substitute the values
[tex]31.4=2(3.14)r[/tex]
[tex]r=31.4/[2(3.14)]=5\ units[/tex]
step 2
Find the area of the circle
The area of the circle is equal to
[tex]A=\pi r^{2}[/tex]
substitute the values
[tex]A=(3.14)(5)^{2}[/tex]
[tex]A=78.5\ units^{2}[/tex]
Answer:
78.5
Step-by-step explanation:
What is the difference between independent and conditional probability? Which one requires the use of the Addition Rule? Explain.
I know the difference I just need help knowing which one requires the Addition Rule.
Conditional probability means that an event happening only happened because another even had already occurred , Mean while independent probabilitty is like if two events, A and B, are independent if the fact that A occurs does not affect the probability of B occurring.
The addition is a Conditional probability.
The Addition Rule, used for calculating the probability of either event A or B occurring, applies to both independent and dependent events, requiring adjustment for overlapping probabilities.
Explanation:The difference between independent and conditional probability is that independent events do not affect each other's occurrence, whereas conditional probability is the likelihood of one event given that another has occurred. The Addition Rule of probability is used with either independent or dependent events when you are calculating the probability of either event A or event B occurring (denoted as P(A OR B)). However, the rule requires an adjustment in the case of dependent events. The Addition Rule is P(A OR B) = P(A) + P(B) - P(A AND B). It is used to make sure that the probability of the intersection of A and B (which is counted in both P(A) and P(B)) is not counted twice.
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Find the difference of the complex numbers.
(2+81)-(-5-31)
O A. -3+111
O B. -3 + 51
O C. 7+ 51
O D. 7+111
Answer:
D. 7 +11i
Step-by-step explanation:
In many situations, you can treat "i" as though it were a variable. Collect terms in the usual way.
(2 +8i) -(-5-3i) = 2 +8i +5 +3i = (2+5) +(8+3)i
= 7 +11i
PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!
Suppose the ages of cars driven by employees at a company are normally distributed with a mean of 8 years and a standard deviation of 3.2 years.
What is the z-score of a car that is 6 years old?
Answer: b) -0.625
Step-by-step explanation:
The formula for the z-score is:
[tex]z=\dfrac{x-\mu}{\sigma}\\\\\bullet z \text{ is the z-score}\\\bullet x \text{ is the value}\\\bullet \mu \text{ is the mean}\\\bullet \sigma \text{ is the standard deviation}\\\\z=\dfrac{6-8}{3.2}\\\\\\.\ =\dfrac{-2}{3.2}\\\\\\.\ =\large\boxed{-.0625}[/tex]
the volume of a storage tub shaped like a rectangular prism is 24 ft cubed. The height of the top is 3 ft the width is W feet in the length is W + to use the formula V equals l w h to find the value of w
[tex]\boxed{W=2ft}[/tex]
Step-by-step explanation:A prism is a solid object having two identical bases, hence the same cross section along the length. Prism are called after the name of their base. On the other hand, a rectangular prism is a solid whose base is a rectangle. Multiplying the three dimensions of a rectangular prism: length, width and height, gives us the volume of a prism:
[tex]V=L\times W\times H[/tex]
From the statement of the problem we know:
[tex]V=24ft^3 \\ \\ H=3ft \\ \\ W=W \\ \\ L=W+2[/tex]
So:
[tex]24=(W+2)(W)(3) \\ \\ 3W(W+2)=24 \\ \\ 3W^2+6W-24=0 \\ \\ From \ the \ Quadratic \ Formula: \\ \\ W_{12}=\frac{-b \pm \sqrt{b^2-4ac}}{2a} \\ \\ W_{12}=\frac{-6 \pm \sqrt{6^2-4(3)(-24)}}{2(3)} \\ \\ W_{1}=2 \\ \\ W_{2}=-4[/tex]
Since we can't have negative distance, the only valid option is [tex]\boxed{W=2ft}[/tex]
Choices:
14.63
26.96
36.95
61.51
Correct answers show work!
Tan(angle) = opposite leg / adjacent leg.
Tan(64) = x /30
x = 30 * tan(64)
x = 61.51
Answer:
the answer is d 61.51
Step-by-step explanation:
What is the volume of the cone with radius 4 ft and height 10 ft? Round to the nearest cubic foot.
A) 126 ft3
B) 200 ft3
C) 251 ft3
D) 168 ft3
Answer:
D) 168 ft^3
Step-by-step explanation:
The volume of a cone is given by the formula ...
V = (1/3)πr^2·h
Putting your numbers in, we have ...
V = (1/3)π(4 ft)^2·(10 ft) = (160π/3) ft^3 ≈ 168 ft^3
The answer is d 168ft3
Explanation:
(1/3)*(4^2)*10*pi
URGENT PLEASE HELP 98 POINTS Find the direction angle of vector v to the nearest tenth of a degree.
Answer:
The direction angle of vector v is equal to [tex]9.5\°[/tex]
Step-by-step explanation:
Let
[tex]A(-5,0),B(7,2)[/tex]
The vector v is given by
[tex]v=B-A[/tex]
[tex]v=(7, 2) - (-5, 0)[/tex]
[tex]v=((7 - (- 5)), (2-0))[/tex]
[tex]v=(12, 2)[/tex]
Remember that
The direction angle of the vector is equal to
[tex]tan (\theta) =\frac{y}{x}[/tex]
substitute the values
[tex]tan (\theta) =\frac{2}{12}[/tex]
[tex]\theta=arctan(\frac{2}{12})=9.5\°[/tex]
Answer:
The direction angle of vector v is equal to 9.5\°
Step-by-step explanation:
Let
A(-5,0),B(7,2)
The vector v is given by
v=B-A
v=(7, 2) - (-5, 0)
v=((7 - (- 5)), (2-0))
v=(12, 2)
Remember that
The direction angle of the vector is equal to
tan (\theta) =\frac{y}{x}
substitute the values
tan (\theta) =\frac{2}{12}
\theta=arctan(\frac{2}{12})=9.5\°
Step-by-step explanation:
put that in a computer calc and it shoud give u the awnser
Can someone give an explanation.
Answer:
C. 6 feet
Step-by-step explanation:
The answer is:
The correct option is B. the string is 3.9 feet long.
Why?To solve the problem, we need to use the given formula, substituting "T" equal to 2.2 seconds, and then, isolating "L".
Also, we need to remember the formula to calculate a simple pendulum:
[tex]T=2\pi \sqrt{\frac{L}{g} }[/tex]
Where,
T, is the period in seconds
L, is the longitud in meters or feet
g, is the acceleration of the gravity wich is equal to:
[tex]g=9.81\frac{m}{s^{2} }[/tex]
or
[tex]g=32\frac{feet}{s^{2} }[/tex]
We are given the formula:
[tex]T=2\pi \sqrt{\frac{L}{32} }[/tex]
Where,
T, is the period of the pendulum (in seconds).
L, is the length of the string.
32, is the acceleration of the gravity in feet.
So, substituting "T" and isolating "L", we have:
[tex]2.2seconds=2\pi \sqrt{\frac{L}{32\frac{feet}{seconds^{2}} }}\\\\2\pi \sqrt{\frac{L}{32\frac{feet}{seconds^{2}}}}=2.2seconds\\\\\sqrt{\frac{L}{32\frac{feet}{seconds^{2}}}}=\frac{2.2seconds}{2\pi }[/tex]
Then, squaring both sides of the equation, to cancel the square root, we have:
[tex]\sqrt{\frac{L}{32\frac{feet}{seconds^{2} }}}=\frac{2.2seconds}{2\pi}\\\\(\sqrt{\frac{L}{32\frac{feet}{seconds^{2}}}})^{2}=(\frac{2.2seconds}{2\pi})^{2}=(0.35seconds)^{2} }\\\\\frac{L}{32\frac{feet}{seconds^{2}}}}=0.123seconds^{2}\\\\L=32\frac{feet}{seconds^{2}}*0.123seconds^{2}\\\\L=3.94feet=3.9feet[/tex]
Hence, we have that the answer is:
B. the string is 3.9 feet long.
Have a nice day!
Write the standard form of the equation of the circle with center (-5,-7) that passes through the point (7,5).
Answer:
(x + 5)² + (y + 7)² = 288
Step-by-step explanation:
The equation of a circle in standard form is
(x - h)² + (y - k)² = r²
where (h, k) are the coordinates of the centre and r is the radius
The radius is the distance from the centre (- 5, - 7) to the point on the circle (7, 5)
Use the distance formula to calculate r
r = √ (x₂ - x₁ )² + (y₂ - y₁ )²
with (x₁, y₁ ) = (- 5, - 7) and (x₂, y₂ ) = (7, 5)
r = [tex]\sqrt{(7+5)^2+(5+7)^2}[/tex] = [tex]\sqrt{12^2+12^2}[/tex] = [tex]\sqrt{288}[/tex]
Hence
(x - (- 5))² + (y - (- 7))² = ([tex]\sqrt{288}[/tex])², that is
(x + 5)² + (y + 7)² = 288
When the bridge is fully raised, tan θ=5/12. What is sec θ? PLEASE HELP
Answer:
sec Ф = 13/12
Step-by-step explanation:
If tan Ф = 5 / 12, we can find the third side of this triangle (that is, the hypotenuse) by applying the Pythagorean Theorem:
hyp² = 5² + 12² = 169. Thus, the hyp is 13.
Thus, cos Ф = adj / hyp = 12/13.
The secant function is the reciprocal of the cosine function, so
sec Ф = 13/12.
Look at Diagram.
It says,"
ST and TU are tangent to Q. What is the value of x?"
Answer:x=18
Step-by-step explanation:2x-9=x+9
Patricia took out an unsubsidized student loan of $16,000 at a 4.8% APR, compounded monthly, to pay for her last two semesters of college. If she will begin paying off the loan in 15 months, how much will she owe when she begins making payments?
Answer:
She will owe $16987.35 when she begins making payments
Step-by-step explanation:
* Lets explain how to solve the problem
- The loan is $16,000
- The loan at a 4.8% APR compounded monthly
- She will begin paying off the loan in 15 months
- The rule of the future money is [tex]A=P(1 + \frac{r}{n})^{nt}[/tex], where
# A is the future value of the loan
# P is the principal value of the loan
# r is the rate in decimal
# n is the number of times that interest is compounded per unit t
# t = the time in years the money is borrowed for
∵ P = $16,000
∵ r = 4.8/100 = 0.048
∵ n = 12 ⇒ compounded monthly
∵ t = 15/12 = 1.25 years
∴ [tex]A=16000(1+\frac{0.048}{12})^{12(1.25)}=16987.35[/tex]
* She will owe $16987.35 when she begins making payments