Let . If , then what is ?

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Let . If , then what is ?

Guest Nov 11, 2014

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Best Answer

+130511

+5

. If , then what is ?

So...we're substituting b for a and 3 for b in the function...so we have

2b - 3(3)² + 7 = 90

2b - 27 + 7 = 90

2b - 20 = 90 add 20 to both sides

2b = 110 divide both sides by 2

b = 55

CPhill Nov 11, 2014

1⁺⁰ Answers

+130511

+5

Best Answer

. If , then what is ?

So...we're substituting b for a and 3 for b in the function...so we have

2b - 3(3)² + 7 = 90

2b - 27 + 7 = 90

2b - 20 = 90 add 20 to both sides

2b = 110 divide both sides by 2

b = 55

CPhill Nov 11, 2014

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