Question

Someone please help, thank you

Answer 1

Answers:

(a)
`n = 2(r+m)`

(b)
`n = (h^2)/(9)`

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Work Shown:

Part (a)

`(n)/(2) - m = r\\\\(n)/(2) = r+m\\\\n = 2(r+m)`

In the second step, I added m to both sides. Afterward, I multiplied both sides by 2 to fully isolate n.

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Part (b)

`3√(n) = h\\\\√(n) = (h)/(3)\\\\n = \left((h)/(3)\right)^2\\\\n = (h^2)/(3^2)\\\\n = (h^2)/(9)\\\\`

First I divided both sides by 3. After that, I squared both sides. The (h/3) squares to (h^2)/9.

Answer 2

Explanation:

everything can be found in the picture