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2 years ago

Find the length of leg " a" if leg "b" = 12 and the hypotenuse "c" is 13

1 answer:

3 0

A^2 + b^2 = c^2

a^2 + (12)^2 = (13)^2

a^2 + 144 = 169

a^2 = 169 - 144

a^2 = 25

Sqrt (a^2) = Sqrt(25)

a = 5

Please mark brainliest if this helps

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Step-by-step explanation:

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2 years ago

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BaLLatris [955]

Answer:

1727 students

Step-by-step explanation:

Here we have the formula for sample size given as

$n = \frac{p(1-p)z^2}{ME^2}$

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Therefore $n = \frac{0.625(1-0.625)2.575^2}{0.03^2} = 1726.73$

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