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AnnZ [28]
1 year ago
15

The graph below represents the possible dimensions of a horse corral to be constructed behind a barn. The width of the corral is

represented by the equation w = w equals StartFraction 4 over 5.l where w represents width in feet and l represent length in feet. The fencing used around the corral is represented by the line w = w equals StartFraction 65 minus l over 2..
A coordinate grid showing Horse Corral Plans with Length in feet on the horizontal, t, axis and Width in feet on the vertical, w, axis. One line passes through (0, 32.5) and a point at (25, 20). The second line passes through (0, 0) and passes through the point (25, 20).
What is the meaning of the point (25, 20)?

The corral uses 20 + 25 = 45 feet of fencing.
The corral uses 20(25) = 500 feet of fencing.
The corral has dimensions of 25 feet long and 20 feet wide.
The corral has dimensions of 20 feet long and 25 feet wide.
Mathematics
1 answer:
alexira [117]1 year ago
6 0

Answer:

I think its C

Step-by-step explanation:

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Vikentia [17]

Answer:

y=9 ( {2}^{x} )

Step-by-step explanation:

Let the exponential function be

y = a {b}^{x}

We substitute (0,9) to get:

9 = a {b}^{0}

9 = a(1)

a = 9

The equation now becomes:

y = 9 {b}^{x}

We substitute (3,72) to get:

72 =9  {b}^{3}

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b = 2

The equation is therefore

y=9 ( {2}^{x} )

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2 years ago
Prove the diagonals of the square with vertices P(0, 4), Q(4, 4), R(0, 0), and S(4, 0) are perpendicular bisectors of each other
const2013 [10]

Answer:

The slope of diagonal PS is -1.

The slope of diagonal QR is 1.

The midpoint of PS is (2, 2).

The midpoint of QR is (2, 2).

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6 0
1 year ago
Read 2 more answers
Consider a disease whose presence can be identified by carrying out a blood test. Let p denote the probability that a randomly s
kifflom [539]

Answer:

The expected number of tests, E(X) = 6.00

Step-by-step explanation:

Let us denote the number of tests required by X.

In the case of 5 individuals, the possible value of x are 1, if no one has the disease, and 6, if at least one person has the disease.

To find the probability that no one has the disease, we will consider the fact that the selection is independent. Thus, only one test is necessary.

Case 1: P(X=1) = [P (not infected)]⁵

                       = (0.15 - 0.1)⁵

            P(X=1) = 3.125*10⁻⁷

Case 2: P(X=6) = 1- P(X=1)

                        = 1 - (1 - 0.1)⁵

               P(X=6) = (1 - 3.125*10⁻⁷) = 0.999999

               P(X=6) = 1.0

We can then use the previously determined values to compute the expected number of tests.

E(X) = ∑x.P(X=x)

      = (1).(3.125*10⁻⁷) + 6.(1.0)

 E(X)  =  E(X) = 6.00

Therefore, the expected number of tests, E(X) = 6.00

3 0
2 years ago
An animal park has lions, tigers and zebras. 20% of the animals are lions and half of the animals are zebras. If there are 120 a
RoseWind [281]

Answer:

36\ tigers

Step-by-step explanation:

Let

x ----> the number of lions

y ----> the number f tigers

z ----> the number of zebras

we know that

x+y+z=120 ----> equation A

Remember that

20\%=20/100=0.20

50\%=50/100=0.50

To find out the number of lions, multiply the total animals by the percentage of lions

x=0.20(120)=24\ lions

To find out the number of zebras, multiply the total animals by the percentage of zebras

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Substitute the value of x and the value of z in equation A and solve for y

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6 0
1 year ago
A) The ratio 20 minutes to 1 hour can be written in the form 1:n.
Fudgin [204]

Answer:

a) 1:3

b) 9:225,000

Step-by-step explanation:

A)

1 hour is equal to 60 minutes. Written as a fraction it would look like

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B)

Just multiply both sides of the ratio by 9, you will get 9:225,000

Hope I helped, please mark as brainliest! Have a good day!

7 0
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