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White raven [17]
3 years ago
14

Simplify each expression -4b+2b

Mathematics
2 answers:
I am Lyosha [343]3 years ago
4 0

Answer:

-2b

Step-by-step explanation:

−4b+2b

=−4b+2b

=−b+−b+−b+−b+b+b

=−b−b

=−2b

velikii [3]3 years ago
4 0

Answer:

-2b

Step-by-step explanation:

This just an addition problem so there's not much work to show.

It's the same as -4 + 2 =  -2  but they just put variables in front of them so it's

-4b + 2b = -2b

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Can a triangle be drawn with side lengths 8.4 inches, 9.2 inches, and 17 inches?
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The daily cost of producing x high performance wheels for racing is given by the following​ function, where no more than 100 whe
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Answer:

The production would be 25 wheels,

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Step-by-step explanation:

Given cost function,

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So, the average cost per wheel,

A(x) = \frac{C(x)}{x}=\frac{0.09x^3-4.5x^2 + 180x}{x}=0.09x^2 - 4.5x + 180

Differentiating with respect to x,

A'(x) = 0.18x - 4.5

Again differentiating with respect to x,

A''(x) = 0.18

For maxima or minima,

A'(x) = 0

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0.18x = 4.5

\implies x = \frac{4.5}{0.18}=25

For x = 25, A''(x) = positive,

i.e. A(x) is maximum at x = 25.

Hence, the production would be 25 wheels for the lowest average cost per​ wheel.

And, lowest average cost,

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4 years ago
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Answer:

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Step-by-step explanation:

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Finding y-intercept of line, b = 2.5 gallons (at t=0).

Hence, option B is correct, i.e. The amount of water originally in Wilson's can was 2.5 gallons.

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3 years ago
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