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Arada [10]
3 years ago
5

If y = -4 when x = 1, find y when x = 3

Mathematics
1 answer:
dedylja [7]3 years ago
8 0

Answer: y=-6

Step-by-step explanation:

y = -4 when x = 1

find y when x = 3

y=-4   x=1

y=-5      x=2

y=-6     x=3

im not sure if this is right so I’m sorry

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WILL MARK BRIANLEST!!!!!!! PLS HURRY!!!!!!!!
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Answer:

16 sq meters

Explanation

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Suppose that the probabilities of a customer purchasing​ 0, 1, or 2 books at a book store are 0.20.2​, 0.30.3​, and 0.50.5​, res
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Answer:

0.78

Step-by-step explanation:

We have the next probability distribution:

X            P(X)

0            0.2

1             0.3

2            0.5

As we can see when we add all the probabilites the result is 1. Now calculating the mean we have:

mean=\mu=(0\times0.2)+(1\times 0.3)+(2\times 0.5)=0+0.3+1=1.3

The standard deviation is:

\sigma=\sqrt{\sum(x-\mu)^{2}(P(x))}

Then using the data that we have:

\sigma=\sqrt{\sum(x-\mu)^{2}(P(x))}\\\sigma=\sqrt{(0-1.3)^{2}(0.2)+(1-1.3)^{2}(0.3)+(2-1.3)^{2}(0.5)}\\\\\sigma=\sqrt{(-1.3)^{2}(0.2)+(-0.3)^{2}(0.3)+(0.7)^{2}(0.5)}\\\\\sigma=\sqrt{(1.69)(0.2)+(0.09)(0.3)+(0.49)(0.5)}\\\\\sigma=\sqrt{0.338+0.027+0.245}\\\\\sigma=\sqrt{0.61}\\\\\sigma=0.78\\

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3 years ago
Factor completely 8y^3+16y^2
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Answer:

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Step-by-step explanation:

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Let's find the greatest common factor of 8y^3 and 16y^2

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8y^2 (y + 2)

Therefore, the factors are 8y^2 and (y + 2)

That is 8y^3 + 16y^2 = 8y^2(y + 2)

Thank you.


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Answer:

Step-by-step explanation

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