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vlabodo [156]
3 years ago
5

A central angle in a circle with a radius of 7in. intercepts an arc with a length of 9in. What is the radian measure of the cent

ral angle?

Mathematics
1 answer:
Vitek1552 [10]3 years ago
8 0
A central angle in a circle with a radius of 7in. intercepts an arc with a length of 9in. What is the radian measure of the central angle?

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Answer: 2x^2+3x-2

Step-by-step explanation:

You can do long division, which is very very hard to show with typing on a keyboard. You essentially want to divide the leading coefficient for each term. Ill try my best to explain it.

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2x^2*(x-3)=2x^3 -6x^2\\(2x^3 -3x^2-11x+6)-(2x^3-6x^2) = 3x^2-11x+6

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Your final step is to do \frac{-2x}{x} =-2. Write this -2 next to your other two parts

Multiply -2 by (x - 3) to get:

-2(x-3)=-2x+6\\(-2x+6)-(-2x+6)=0

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2x^2+3x-2 times

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It should cost 8 dollars all together.
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