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# Indicated variable and solved radical

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Please show me the steps how you work the problems so I can work similar problems.
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Solve each formula for the indicated variable.

16.

21. For h

22. for s

Raising each side to a power to eliminate Radicals.
Solve each equation and check for extraneous solution.
42.

85.

91.

#### Solution Preview

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Solve each formula for the indicated variable.

16.
Solution:
Take the lcd of the right side and add them.
The lcd is r1 r2 .
Therefore, =
Taking reciprocal, we get r =

21. For h

Solution:

We have to get rid of all the numbers and variables on the right side except h.
First multiply both sides by
v =
v = R2 h
Then ...

#### Solution Summary

Equations and radicals are solved. The solution is detailed and well presented. The response received a rating of "5" from the student who originally posted the question.

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