2 years ago

What if x is 4 and y is 5?

1 answer:

5 0

If you were going to write this as an equation it would be like this. 4*5. Of you are look for the answer the answer is 20. Hope that helped.

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mihalych1998 [28]

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Step-by-step explanation:

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2 years ago

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The length of a rectangle is five times its width. if the perimeter of the rectangle is 96 yd , find its area.

elena-14-01-66 [18.8K]

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3 years ago

What number goes in the highlighted box?

pentagon [3]

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2 years ago

CAN YALL PLZZ HELP MEE ASAP Which of the following tables represents a function? x 1 1 2 2 y 3 −3 4 −4 x 2 −2 2 −2 y 1 2 3 4 x 3

ira [324]

Answer: The first table represents a function!

Step-by-step explanation:

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7 0

3 years ago

From a group of 3 men and 4 women, a delegation of 2 is selected. What is the expected number of men in the delegation?

Ostrovityanka [42]

Answer:

The expected number of men in the delegation is 0.86.

Step-by-step explanation:

Number of men = 3

Number of women = 4

A delegation of 2 is selected.

Let X be the number of men selected. So, the possible values of X are 0,1,2.

$P(X=0)=\dfrac{^3C_0\times ^4C_2}{^7C_2}=\dfrac{2}{7}$

$P(X=1)=\dfrac{^3C_1\times ^4C_1}{^7C_2}=\dfrac{4}{7}$

$P(X=2)=\dfrac{^3C_2\times ^4C_0}{^7C_2}=\dfrac{1}{7}$

The expected number of men in the delegation is

$E(x)=0\times P(X=0)+1\times P(X=1)+2\times P(X=2)$

$E(x)=0\times \dfrac{2}{7}+1\times \dfrac{4}{7}+2\times \dfrac{1}{7}$

$E(x)=\dfrac{6}{7}$

$E(x)\approx 0.86$

Therefore, the expected number of men in the delegation is 0.86.

4 0

2 years ago