Answer:
The probability that the point will be in the part that is NOT shaded is about 20% ⇒ 4th answer
Step-by-step explanation:
* Lets look to the figure
- There are four circles inscribed in a square
- The four circles touched each other and touched the four
sides of the square
∴ The side of the square = twice the diameter of a circle
- If the side of the square is l and the diameter of the circle is d
∴ l = 2d ⇒ divide the two sides by 2
∴ d = (1/2) l
∵ The radius of the circle = (1/2) the diameter
∴ r = (1/2) d
∵ d = (1/2) l
∴ r = (1/2)(1/2) l = (1/4) l
* Now lets find the area that NOT shaded
∵ The area of the square = side × side
∴ The area of the square = l × l = l²
∵ The area of the circle = πr²
∵ r = (1/4) l
∴ r² = [(1/4) l]² = (1/4)² × l² = (1/16) l²
∴ The area of one circle = (1/16)πl²
- The shaded part is the four circles
∴ The shaded area = 4 × (1/16)πl² = (1/4)πl²
- The part is not shaded = Area of the square - Area of the shaded part
∴ The area of not shaded = l² - (1/4)πl² ⇒ take l² as a common factor
∴ The area of not shaded = l²(1 -1/4 π)
- The probability that the point will be in the part that not shaded is
area of the part not shaded/area of the square
∴ P = l²(1 - 1/4 π)/l² ⇒ cancel l² from up and down
∴ P = (1 - 1/4 π )/1 = 0.2146 ≅ 0.2
- Chang it to percent number
∴ P = 0.2 × 100% = 20%
* The probability that the point will be in the part that is NOT shaded
is about 20%
∴ r = (1/2) d
∴
Jameel Alharbi deposited $1,500 in a savings account that earns 5% compounded quarterly. He made no other deposits or withdrawals. What is the amount in the account at the end of the second quarter?
$2562.87
$1537.73
$2050.31
$1025.00
Answer:
The amount in the account at the end of the 2nd quarter is $1537.73 ⇒ 2nd answer
Step-by-step explanation:
* Lets revise the compound interest
- Compound interest can be calculated using the formula
A = P (1 + r/n)^(nt)
Where:
• A = the future value of the investment, including interest
• P = the principal investment amount (the initial amount)
• r = the annual interest rate (decimal)
• n = the number of times that interest is compounded per unit t
• t = the time the money is invested for
* Now lets solve the problem
# P = $1500
# r = 5/100 = 0.05
# n = 4 ⇒ quarterly compound
# t = 1/2 ⇒ two quarters means 1/2 year
∴ A = 1500(1 + 0.05/4)^(4 × 1/2) = $1537.73
* The amount in the account at the end of the 2nd quarter is $1537.73
state the slope and y-intercept for each graph of each equation y+5x=7
Slope=5
Y-intercept=-7
A box has 3 hockey and 6 football cards. What is the probability of selecting a hockey card, keeping it out, and then selecting another hockey card? What is the probability of selecting a hockey card, keeping it out, and then selecting a football card?
A) The probability of selecting a hockey card, keeping it out, and then selecting another hockey car is 1/9
B) The probability of selecting a hockey card, keeping it out, and then selecting a football card is 1/4
What is Probability?Probability refers to potential. A random event's occurrence is the subject of this area of mathematics.
The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events.
The degree to which something is likely to happen is basically what probability means.
Given:
A box has 3 hockey and 6 football cards.
So, the probability of selecting a hockey card, keeping it out, and then selecting another hockey card
= 3/9 x 2/8
= 6/72
= 1/9
and, the probability of selecting a hockey card, keeping it out, and then selecting a football card
= 3/9 x 6/8
= 18/72
=1/4
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Final answer:
The probability of selecting a hockey card, keeping it out, and then another hockey card is 1/12, whereas the probability of selecting a hockey card and then a football card is 1/4.
Explanation:
The probability of selecting a hockey card, keeping it out, and then selecting another hockey card from a box containing 3 hockey and 6 football cards is calculated as follows. First, the probability of picking one hockey card (Event A) would be 3 out of the total of 9 cards, or 3/9. Then, since the card isn't replaced, there are now 2 hockey cards left out of 8 total cards. So, the probability of picking another hockey card (Event B) after the first pick would be 2/8.
The probability of both events A and B occurring is found by multiplying the two probabilities together:
P(A and B) = P(A) imes P(B) = (3/9) imes (2/8) = 1/12.
For selecting a hockey card and then a football card, the initial probability of picking a hockey card remains 3/9. After a hockey card has been picked and kept out, there are still 6 football cards left out of 8 total cards. The probability of now picking a football card would be 6/8.
The probability of picking a hockey card first and then a football card is therefore:
P(Hockey and then Football) = P(Hockey) imes P(Football) = (3/9) imes (6/8) = 1/4.
Amy invested $5,600 in a CD that pays eight percent compounded quarterly. How many years will it take before the CD is worth 8,228.24
Answer:
It will take 4.858 years before the CD worth 8228.24
Step-by-step explanation:
* Lets revise the compound interest
- The formula for compound interest, including principal sum, is:
A = P (1 + r/n)^(nt)
- Where:
• A = the future value of the investment/loan, including interest
• P = the principal investment amount (the initial deposit or loan amount)
• r = the annual interest rate (decimal)
• n = the number of times that interest is compounded per unit t
• t = the time the money is invested or borrowed for
- To find the time you can use the formula
t = ln(A/P) / n[ln(1 + r/n)]
* Lets solve the problem
∵ P = $5600
∵ A = 8228.24
∵ r = 8/100 = 0.08
∵ n = 4
- Substitute all of these values in the equation of t
∴ t = ln(8228.24/5600) / 4[ln(1 + 0.08/4)] = 4.858 years
* It will take 4.858 years before the CD worth 8228.24
find the product and simplify your answer. -n(-2n4+9n-5)
Answer:
[tex]+2n^5 - 9n^2 + 5n[/tex]
Step-by-step explanation:
To solve the expression
[tex]-n(-2n^4+9n-5)[/tex]
first we will multiply -n with each term and then find their products.
When doing multiplication the powers will be added and co-efficient will be multiplied.
[tex]-n(-2n^4+9n-5)\\-n(-2n^4) -n(+9n) -n(-5)\\+2n^5 - 9n^2 + 5n[/tex]
What is the exact value of 4(10)^5x = 200
For this case we must find the value of the variable "x" of the following expression:
[tex]4(10^{5x})=200[/tex]
We divide both sides of the equation by 4:
[tex]10 ^ {5x} = \frac {200} {4}\\10 ^ {5x} = 50[/tex]
We find ln on both sides of the equation to remove the exponent variable:
[tex]ln (10^{5x}) = ln (50)\\5x * ln (10) = ln (50)[/tex]
We divide both sides of the equation between 5 * ln (10):[tex]x = \frac {ln (50)} {5 * ln (10)}[/tex]
In decimal form we have:
[tex]x = 0.33979400[/tex]
ANswer:
[tex]x = 0.33979400[/tex]
g(x) = –16x + x2 in vertex form.
Answer:
[tex]g(x)=(x-8)^2-64[/tex]
Step-by-step explanation:
The given function is;
[tex]g(x)=-16x+x^2[/tex]
This is the same as;
[tex]g(x)=x^2-16x[/tex]
Add and subtract the square of half the coefficient of x.
[tex]g(x)=x^2-16x+(-8)^2-(-8)^2[/tex]
Observe that the first three terms is a perfect square trinomial.
[tex]g(x)=(x-8)^2-64[/tex]
The vertex form is [tex]g(x)=(x-8)^2-64[/tex]
The vertex (8,-64)
5ry-c=q solve for r
Answer:
R= q+c over 5y
Step-by-step explanation: Good luck sweetie!!
Pls help................
Answer:
[tex]82,8m^2 = S.A[/tex]
Step-by-step explanation:
Area of a Rectangle: [tex]hb\:or\:wb = A[/tex]
Area of a Triangle: [tex]\frac{1}{2}hb; \frac{1}{2}bh, or\: \frac{hb}{2} = A[/tex]
Need to know
- Two small triangles
- Two big triangles
12m² = Rectangle
26,4m² EACH = Big Triangles
9m² EACH = Small Triangles
[tex]2[9] + 2[26,4] + 12 = 18 + 52,8 + 12 = 82,8[/tex]
So, the surface area of the rectangular pyramid is 82,8m².
* The answer is not 85,31 because this rectangular pyramid has two slant heights. If we ONLY had 9 as ONE SLANT HEIGHT, then the answer would have been 85,31, otherwise it is incorrect.
I am joyous to assist you anytime.
Which is a simplified form of the expression 4(2z – 1) – 5z?
A. 3z – 1
B. 3z – 4
C. 8z – 1
D. -8z + 4
Answer:
B: 3z-4
Step-by-step explanation:
First you start with PEMDAS. Parenthesis first.
Distribute 4 to (2z-1)
You get 8z-4
Next combine like terms such as 8z and -5z.
You get 3z because 8-5 is 3.
then you add on the negative four and get 3z-4.
Answer:
b
Step-by-step explanation:
i got it right on edge :)
Find the time required for an investment of $5000 to grow to $8000 at an interest rate of 7% per year if it is compounded quarterly
Answer:
7 years
Step-by-step explanation:
A = P (1 + r)^(n)
where A is the final amount, P is the initial amount, r is the interest rate, and n is the number of times of compounding.
Compounded quarterly means compounded 4 times per year. So the effective interest rate per compounding is:
r = 0.07 / 4
r = 0.0175
Given that A = 8000 and P = 5000:
8000 = 5000 (1 + 0.0175)^n
1.6 = 1.0175^n
log 1.6 = n log 1.0175
n = (log 1.6) / (log 1.0175)
n ≈ 27.1
Rounding up to the nearest whole number, it takes 28 compoundings. Since there's 4 compoundings per year:
t = 28 / 4
t = 7
It takes 7 years.
The equation y=15x+60 represents the total cost y,the security fee,and The hourly rate for renting a tool for x hours .Make a table of values that can be used to determine the total cost for renting a tool for 1,3 and 5 hours
Here is a table that will help you understand. And the answer.
If m(x) = x+5/x-1 and n(x) = x — 3, have the same domain as (m • n) (x)
For this case we have the following functions:
[tex]m (x) = \frac {x + 5} {x-1}\\n (x) = x-3[/tex]
By definition we have to:
[tex](f * g) (x) = f (x) * g (x)[/tex]
So:
[tex](m * n) (x) = m (x) * n (x)\\(m * n) (x) = \frac {x + 5} {x-1} (x-3)\\(m * n) (x) = \frac {(x + 5) (x-3)} {x-1}[/tex]
By definition, the domain of a function is given by the values for which the function is defined.
The domain of m(x) is given by all reals except 1.
The domain of n(x) is given by all reals.
While the domain of [tex](m * n) (x)[/tex] is given by:
All reals, except the 1. With [tex]x = 1[/tex], the denominator is 0 and the function is no longer defined.
Answer:
Domain of[tex](m * n) (x)[/tex] is given by all reals except 1.
A cylinder has a surface area of 224in 2. If all dimensions of this cylinder are multipled by 1/4 to crate a new cylinder what will be the surface area of the new cylinder
Answer:
[tex]\boxed{\text{14 in}^{2}}[/tex]
Step-by-step explanation:
The scale factor (C) is the ratio of corresponding parts of the two cylinders.
The ratio of the areas is the square of the scale factor.
[tex]\dfrac{A_{1}}{ A_{2}} = C^{2}\\ \\\dfrac{224}{ A_{2}} = \left (\dfrac{1}{\frac{1}{4}} \right )^{2}\\\\\dfrac{224}{ A_{2}}= 16\\A_{2} = \dfrac{224}{16\\\\}[/tex]
A₂ = 14 in²
The surface area of the new cylinder will be [tex]\boxed{\textbf{14 in}^{2}}[/tex].
Which data set has an outlier? 6,13,13,15,15,18,18,22
4,4,4,8,9,9,11,18
2,3,5,7,8,8,9,10,12,17
3,6,7,7,8,8,9,9,9,10
Answer:
The answer to your question is: D it has 3
Hope this helps!!!!
- Aaliyah
Step-by-step explanation:
A data set has outliers if the data lie out side the interval
The interquartile range of a data set is
For option A, the required interval is [5.5, 25.5]. Since all the data lie in this interval, therefore this data set has no outliers.
For option B, the required interval is [-5, 19]. Since all the data lie in this interval, therefore this data set has no outliers.
For option C, the required interval is [-2.5, 17.5]. Since all the data lie in this interval, therefore this data set has no outliers.
For option D,
3, 6, 7, 7, 8, 8, 9, 9, 9, 10
(3, 6), 7, (7, 8),( 8, 9), 9,( 9, 10)
3 lies out side the interval [4,12]. It means this data set has an outlier, i.e,.
Therefore correct option is D.
Answer:
D
Step-by-step explanation:
Alondra took out a car loan for $22,500 that has a 0% APR for the first 24
months and will be paid off with monthly payments over 5 years. For how
many months will Alondra be charged interest?
A. 60 months
B. 36 months
C. 84 months
D. 24 months
Answer:
The correct option is B.
Step-by-step explanation:
It is given that Alondra took out a car loan for $22,500 that has a 0% APR for the first 24 months and will be paid off with monthly payments over 5 years.
We know that
1 year = 12 months
Using this conversion we get
5 year = 60 months
It means total number of months in 5 years is 60. For first 24 months the APR is 0%. So, the number of months will Alondra be charged interest is
[tex]60-24=36[/tex]
Therefore the correct option is B.
Help with this problem please
Answer:
DDDDDDDDDDD for sure...
D it might look as if it were B but if it was you would cross multiply so it’s definitely D
A yogurt shop offers 6 different flavors of frozen yogurt and 12 different toppings. How many choices are possible for a single serving of frozen yogurt with one topping?
Answer:
#3) 72; #4) 40,320; #5) 90.
Step-by-step explanation:
#3) The number of possible choices are found by multiplying the choices of flavors and the choices of toppings:
6*12=72.
#4) The ordering of 8 cards is a permutation, given by 8!=40,320.
#5) This is a permutation of 10 objects taken 2 at a time:
P(10,2) = 10!/(10-2)!=10!/8!=90.
P.S I had the same question once.
The number of choices which are possible for a single serving of frozen yogurt with one topping from a yogurt shop is 72.
What is arrangement?Arrangement of the things or object is mean to make the group of them in a systematic order, in all the possible ways.
The number of possible ways to arrange is the n!. Here, n is the number of objects.
Let n is the total choices of selecting 6 different flavors of frozen yogurt and 12 different toppings. Thus,
n=6 x 12
n=72
These choice is equal to the possible choices for a single serving of frozen yogurt with one topping.
Thus, the number of choices which are possible for a single serving of frozen yogurt with one topping from a yogurt shop is 72.
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Find the product. Find your answer in exponential form 3^-3 • 3^-5
For this case we have by definition of properties of powers that:
To multiply powers of the same base, the same base is placed and the exponents are added. Also:
[tex]a ^ {- 1} = \frac {1} {a ^ 1} = \frac {1} {a}[/tex]
Now, applying the above properties, we can rewrite the given expression as:
[tex]3 ^ {-3-5} = 3 ^ {- 8} = \frac {1} {3 ^ 8}[/tex]
ANswer:
[tex]\frac {1} {3 ^ 8}[/tex]
Solve for y.
5y = 135
Answer:
27
Step-by-step explanation:
135 divided by 5 (divide both sides by 5)
Answer:
y=27
Step-by-step explanation:
First you have to leave y by itself. So since the y is with a constant (5) then that means that you have to bring 5 to both sides and divide it by 135.
5y=135, y=135/5=27
Need answer fast please
Answer:
m∠B = 79°Step-by-step explanation:
If DMKT → FCBN, then
m∠D = m∠F, m∠M = m∠C, m∠K = m∠B and m∠T = m∠N
m∠K = 79° therefore m∠B = 79°.
A scientist collected 7 water samples from local streams. Each sample was the same size, and she collected 0.7 liters of water in all. What was the volume of each water sample?
The volume of each sample is 0.10 liters of water from each water sample
8x10 to the power of 5 is how many times as great as 8 x 10 to the power of -1
Answer:
Is [tex]10^{6}[/tex] times greater
Step-by-step explanation:
Find the quotient of the two numbers
[tex]\frac{8*10^{5}}{8*10^{-1}}= \frac{8*10^{5}*10^{1} }{8}}=10^{6}[/tex]
therefore
Is [tex]10^{6}[/tex] times greater
[tex]8 \times 10^{5}[/tex] is 1,000,000 times as great as [tex]8 \times 10^{-1}[/tex]
To determine how many times greater 8 x 105 is compared to 8 x 10-1, we can use the properties of exponents.
First, let's write each term in standard form:
[tex]8 \times 10^{5}[/tex] = 800,000
[tex]8 \times 10^{-1}[/tex] = 0.8
Next, find the ratio of these two numbers:
Ratio = ([tex]8 \times 10^{5}[/tex] ) ÷ ([tex]8 \times 10^{-1}[/tex])
Using the division of exponents rule:
[tex]10^{5}[/tex] / [tex]10^{-1}[/tex]
= [tex]10^{5-(-1)}[/tex]
= [tex]10^{6}[/tex]
So, the ratio is 106, which is: 1,000,000.
Therefore, [tex]8 \times 10^{5}[/tex] is 1,000,000 times as great as [tex]8 \times 10^{-1}[/tex]
Question:
How many times is [tex]8 \times 10^{5}[/tex] greater than [tex]8 \times 10^{-1}[/tex]?
The graph of a quadratic function is a parabola that opens down and has a vertex of (4,3) Which if the following could be the function?
Answer:
B
Step-by-step explanation:
To find the correct one plug in 4 into x and if you get 3, that's the correct one.
A. y(4) = -4^2 + 4*4 + 4 = -16 + 16 + 4 = 4 X
B. y(4) = -4^2 + 8 * 4 - 13 = -16 + 32 - 13 = 3
What is the simplified form of x+8/4-x+5/4?
A. x+3/4
B. x-3/4
C. 3/4
D. 2x+13/4
Hzhsususuhhhdhdhhddhdhhdjxxj
For this case, we must simplify the following expression:
[tex]\frac {(x + 8)} {4} - \frac {(x + 5)} {4}[/tex]
They are fractions with the same denominator, they can be subtracted in the traditional way. We must bear in mind that the law of the signs of multiplication states:
[tex]- * + = -[/tex]
So:
[tex]\frac {(x + 8)} {4} - \frac {(x + 5)} {4} = \frac {x + 8-x-5} {4} = \frac {x-x + 8- 5} {4} = \frac {3} {4}[/tex]
ANswer:
Option C
What is the graph of the function f(t)= 5 sin 3t
Answer:
in the graph
Step-by-step explanation:
the function g(t)= sin t is a periodic function with amplitude a0= 1 and period T0=2[tex]\pi[/tex]
For our case, the 5 that multiplies g (t) increases the amplitude so that a = 5 * 1 = 5 and the 3 that multiplies the variable increases the period being T = 2[tex]\pi[/tex]*1/3 = 2[tex]\pi[/tex]/3
Answer:
The answer is B.
consider the polygon in the xy-coordinate plane with vertices at points (1,3),(3,4),(5,0) and (3,-1). what is the most specific name for this polygon?
kite
parallelogram
rectangle
square
Answer:
The name of the polygon is rectangle
Step-by-step explanation:
* Lets find the slope of the four sides and the length of two adjacent
side to know what is the name of the figure
∵ The vertices are (1 , 3) , (3 , 4) , (5 , 0) , (3 , -1)
∵ The rule of the slope of a line which passes through the points
(x1 , y1) and (x2 , y2) is m = (y2 - y1)/(x2 - x1)
- Let (x1 , y1) is (1 , 3) and (x2 , y2) is (3 , 4)
∴ m1 = (4 - 3)/(3 - 1) = 1/2
- Let (x1 , y1) is (3 , 4) and (x2 , y2) is (5 , 0)
∴ m2 = (0 - 4)/(5 - 3) = -4/2 = -2
- Let (x1 , y1) is (5 , 0) and (x2 , y2) is (3 , -1)
∴ m3 = (-1 - 0)/(3 - 5) = -1/-2 = 1/2
- Let (x1 , y1) is (3 , -1) and (x2 , y2) is (1 , 3)
∴ m4 = (3 - -1)/(1 - 3) = 4/-2 = -2
- The parallel lines have equal slopes
- The product of the slopes of the perpendicular lines is -1
∵ m1 = m3 and m2 = m4
∴ The sides contains points (1 , 3) , (3 , 4) and (5 , 0) , (3 , -1) are parallel
and the sides contain points (3 , 4) , (5 , 0) and (3 , -1) , (1 , 3) are
parallel
∵ m1 × m2 = 1/2 × -2 = -1
∴ The side contains points (1 , 3) , (3 , 4) is ⊥ to the line contains points
(3 , 4) , (5 , 0)
∵ m3 × m4 = 1/2 × -2 = -1
∴ The side contains points (5 , 0) , (3 , -1) is ⊥ to the line contains points
(3 , -1) , (1 , 3)
- Now lets find the length of the four sides by using the rule
of the distance
- If a segment has two endpoints (x1 , y1) and (x2 , y2), then the length
of the distance is √[(x2 - x1)² + (y2 - y1)²]
∵ The length of the side which contains points (1 , 3) and (3 , 4) is
√[(3 - 1)² + (4 - 3)²] = √[4 + 1] = √5
∵ The length of the side which contains points (3 , 4) and (5 , 0) is
√[(5 - 3)² + (0 - 4)²] = √[4 + 16] = √20 = 2√5
∵ The length of the side which contains points (5 , 0) and (3 , -1) is
√[(3 - 5)² + (-1 - 0)²] = √[4 + 1] = √5
∵ The length of the side which contains points (3 , -1) and (1 , 3) is
√[(1 - 3)² + (3 - -1)²] = √[4 + 16] = √20 = 2√5
∴ The four sides are not equal but each two opposite sides are equal
- From all above
# Each two opposite sides are parallel and equal
# Each two adjacent sides are perpendicular
∴ The name of the polygon is rectangle
Answer:
rectangle
Step-by-step explanation:
Two cars started moving from San Jose to San Diego. The speed of the faster car was 12 mph less than twice the speed of the other one. In 6 hours the faster car got to San Diego, and by that time the slower one still was 168 miles away from the destination. Find their speeds.
Their speeds are 45 mi/hr and 49 mi/hr
Answer:
The speed of the faster car is 68 miles/hr and speed of slower car is 40 miles/hr.
Step-by-step explanation:
Let the speed of the slower car be x
Now we are given that The speed of the faster car was 12 mph less than twice the speed of the other one.
So, Speed of faster car = 2x-12
Now we are given that In 6 hours the faster car got to San Diego, and by that time the slower one still was 168 miles away from the destination.
So, faster car completes the journey in 6 hours
Distance = [tex]Speed \times Time[/tex]
So, Distance traveled by faster car = [tex](2x-12)\times 6[/tex]
Distance traveled by slower car in 6 hours = [tex]Speed \times Time=6x[/tex]
Since we are given that when faster car completes the journey at that time slower car was 168 miles away from the destination .
A.T.Q
[tex](2x-12)\times 6-6x=168[/tex]
[tex]12x-72-6x=168[/tex]
[tex]6x-72=168[/tex]
[tex]6x=240[/tex]
[tex]x=\frac{240}{6}[/tex]
[tex]x=40[/tex]
So, speed of slower car is 40 miles/hr.
Speed of faster car = 2x-12 =2(40)-12=80-12=68 miles/hr.
Hence the speed of the faster car is 68 miles/hr and speed of slower car is 40 miles/hr.
Which of the following points lie in the solution set to the following system of inequalities? (1 point)
y ≤ x − 5
y ≥ −x − 4
a
(−5, 2)
b
(5, −2)
c
(−5, −2)
d
(5, 2)
Answer:
b. (5, -2)Step-by-step explanation:
Put the coordinates of the points to the inequalities:
y ≤ x - 5; y ≥ -x - 4
-------------------------------------
(-5, 2) → x = -5, y = 2
2 ≤ -5 - 5
2 ≤ -10 FALSE
--------------------------------------
(5, -2) → x = 5, y = -2
-2 ≤ 5 - 5
-2 ≤ 0 TRUE
-2 ≥ -5 - 4
-2 ≥ -9 TRUE
---------------------------------------
(-5, -2) → x = -5, y = -2
-2 ≤ - 5 - 5
-2 ≤ -10 FALSE
---------------------------------------
(5, 2) → x = 5, y = 2
2 ≤ 5 - 5
2 ≤ 0 FALSE
Final answer:
Option b) (5, -2) is the only point that satisfies both inequalities, y ≤ x − 5 and y ≥ −x − 4, making it the correct answer.
Explanation:
The goal is to determine which point lies in the solution set of the given system of inequalities:
y ≤ x − 5
y ≥ −x − 4
Let's evaluate each option given for the system of inequalities:
(−5, 2): Plugging into the inequalities, y = 2 is not less than or equal to x − 5, because 2 is not ≤ (−5 − 5).
(5, −2): y = −2 is less than or equal to 5 − 5, and is also greater than or equal to −5 − 4. Therefore, (5, −2) satisfies both inequalities.
(−5, −2): y = −2 is not less than or equal to −5 − 5, thus not in the solution set.
(5, 2): y = 2 is not less than or equal to 5 − 5, hence it does not satisfy the first inequality.
The only point that satisfies both inequalities is option b) (5, −2).
A ball rolled 295 feet in 2 minutes. What was this balls average speed, in feet per second ?(round to the nearest hundredth)
[tex]
d=295
t=120
s=d\div t= 295\div120\approx2.46\frac{\text{ft}}{\text{s}}
[/tex]