A= P(1+nr) ; solve for r

1 answer:

Ugo [173]3 years ago

4 0

The answer is r = -1/n+A/n

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Sphinxa [80]

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trasher [3.6K]

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Masja [62]

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Step-by-step explanation:

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KonstantinChe [14]

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statuscvo [17]

Answer:

x = 6 x = -7

Step-by-step explanation:

Subtract 12 from each side:

x^2 + x - 30 - 12 = 12 - 12

Simplify:

x^2 + x - 42 = 0

Solve with quadratic formula using both +/- after the first -1:

x = $\frac{-1+\sqrt{1^2 -4*1(-42)} }{2*1}$

Simplify:

x = 6

x = -7

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3 years ago