3 years ago

HELPP is c Right?? picture shown

Mathematics

1 answer:

Crank3 years ago

8 0

Hello :
the midepoint is( (-1+7)/2 ; (3+2)/2)
(3, 5/2) ... answer C

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Answer:

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Step-by-step explanation:

Mean height = $\mu = 66$

Standard deviation = $\sigma = 2.5$

We are supposed to find What is the probability that the person is between 65 and 69 inches i.e.P(65<x<69)

$Z=\frac{x-\mu}{\sigma}$

At x = 65

$Z=\frac{65-66}{2.5}$

Z=-0.4

Refer the z table for p value

P(x<65)=0.3446

At x = 69

$Z=\frac{69-66}{2.5}$

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P(x<69)=0.8849

So,P(65<x<69)=P(x<69)-P(x<65)=0.8849-0.3446=0.5403

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3 years ago

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3a^2 (ab^2+b^2)=<br> How much

kiruha [24]

Answer is 3a²b (a + b)

Step-by-step explanation:

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Step-by-step explanation:

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3 years ago

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