Step 1:

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Solve the formula for the variable.

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(a)

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The quadratic equation is $\"\"$ .

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Find formula for $\"\"$ .

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$\"\"$

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(b)

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The perimeter of the rectangular is $\"\"$ .

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Find formula for $\"\"$ .

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$\"\"$

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(c)

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The equation is $\"\"$ .

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Find formula for $\"\"$ .

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$\"\"$

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Solution:

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(a) $\"\"$

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(b) $\"\"$

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(c) $\"\"$