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Lera25 [3.4K]
2 years ago
15

Which expression is equivalent to the given expression? -2x +8x -9 +4x +7x2 +2 A. B. C. D.

Mathematics
1 answer:
Crazy boy [7]2 years ago
6 0

Answer:

The answer is "7x^2 +10x -7"

Step-by-step explanation:

Let the given value is:

\to \bold{-2x +8x -9 +4x +7x^2 +2}\\\\

Solving the given value:

\to7x^2 -2x +8x +4x-9 +2\\\\\to7x^2 +10x -7\\\\\to7x^2 +10x -7\\\\

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If f(x) = 3x-4 and g(x) = 4-3x then the solution of f(g(x)) = g(f(x)) proves that they are not inverse functions.

According to the question,

We have the following two functions:

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4 0
1 year ago
15. John works for the local used car dealership. His weekly salary is $375 plus a commission based on the number of cars that h
ratelena [41]

Answer:

S = 935 when t ≤ 7

S = (180t - 325) when t > 7

Step-by-step explanation:

John's weekly salary = $375 + commission on number of cars he sell

Commission for the first seven cars sold = $80 per car

Commission above 7 cars = $180 per car

If John sells t cars each week then commission earned by John

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So the salary for week = 375 + commission

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S = 935 + 180(t - 7)

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3 years ago
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