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Damm [24]
3 years ago
9

Which equation is the inverse of y = 2x^2 - 8?

Mathematics
1 answer:
evablogger [386]3 years ago
6 0

Answer: A

Step-by-step explanation:

y=2x^2-8

1. Swap x and y.

x=2y^2-8

2. Solve for the new y.

Add 8

x+8=2y^2

Divide by 2.

\frac{x+8}{2}=y^2

Extract the square root.

\sqrt{\frac{x+8}{2} }=y

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Answer:

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Step-by-step explanation:

(-5)+2+(3+1)

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2 years ago
Suppose you can work at most a total of 25 hours per week. Baby-sitting, x, pays $6 per hour and working at the grocery store, y
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Answer:

<u><em>y=7  </em></u><u>number of hours at grocery store</u>

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Step-by-step explanation:

According to the information provided.

x is number of hours at baby- sitting

y is number of hours at grocery store

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<em />

<em>from equation 1</em>

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<em>we place the above derived equation in equation 2 </em>

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150+3y=171

3y=171-150

3y=21

<u><em>y=7  </em></u><u>number of hours at grocery store</u>

x= 25-y

x= 25-7

<u><em>x=18 </em></u><u>number of hours at baby- sitting</u>

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Step-by-step explanation:

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Sorry if I'm wrong.

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2 years ago
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