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vodka [1.7K]
3 years ago
14

What is the Answer to -1/2(4-2+8x?

Mathematics
1 answer:
Vsevolod [243]3 years ago
4 0

Answer:

=-4x-1

Step-by-step explanation:

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The circumference of a circle is 9 pi.What is the area,in square inches,of a circle?Express your answer in terms of pi.
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Answer:

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Step-by-step explanation:

The circumference (C) of a circle is calculated using the formula

C = 2πr ← r is the radius

given C = 9π, then

2πr = 9π ( divide both sides by 2π )

r = \frac{9\pi }{2\pi } ( cancel the π on numerator/denominator )

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The area (A) of a circle is calculated using the formula

A = πr² = π × 4.5² = 20.25π

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