Solve y=x2-5 for x.

Mathematics

1 answer:

faltersainse [42]4 years ago

7 0

Answer: x=+/- square root of y+5 (A, i think this one kinda confused me)

y=x^2-5
substitute y for 0
0=x^2-5
subtract x^2 on both sides
-x^2=-5
since they both can be negative and positive change signs to positive to be easier
x^2=5
square root both sides
x=+/- square root of 5

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Jeff and his friends win a prize.

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Answer:

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Step-by-step explanation:

Let Jeff's share be J.
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<u>Given the following data;</u>

J = $160
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Answer:

4.55% probability that a randomly selected individual will take less than 5 minutes to select a shoe purchase.

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Step-by-step explanation:

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

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