N-10= -12 solve and check helpppppppppp

Mathematics

1 answer:

vladimir2022 [97]3 years ago

8 0

Answer:

n=-2

Step-by-step explanation:

add 10 to both sides

-12 + 10 = -2

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The average income, I, in dollars, of a lawyer with an age of x years is modeled with the following function:

Alinara [238K]

The answer is 37 years old.

I = -425x² + 45500x -650000
I = 450000

-425x² + 45500x -650000 = 450000
-425x² + 45500x - 650000 - 450000 = 0
-425x² + 45500x - 1100000 = 0

Divide all factors by 25:
- 17x² + 1820x - 44000 = 0

This is quadratic equation (ax² + bx + c = 0)
$x_{1,2} = \frac{-b+/- \sqrt{ b^{2}-4ac } }{2a} = \frac{-1820+/- \sqrt{ 1820^{2}-4*(-17)*(-44000) } }{2*(-17)} = \\ \\ = \frac{-1820+/- \sqrt{3312400-2992000 } }{-34} = \frac{-1820+/- \sqrt{320400} }{-34} =\frac{-1820+/- 566}{-34} \\ \\ 
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Since, the youngest age is needed, the correct answer is x = 37

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3 years ago

A competitive cliff diver jumps into

fredd [130]

Answer:

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Step-by-step explanation

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