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2 years ago

If x2 = 20, what is the value of x?

Mathematics

2 answers:

zhuklara [117]2 years ago

8 0

Answer with explanation:

It is given that

x²=20

$x=\pm (20)^{\frac{1}{2}$

Because , Square of $\sqrt{20} \text{and} -\sqrt{20}$ , both are equal to 20.

Option B: ±square root of 20

ArbitrLikvidat [17]2 years ago

3 0

The correct answer is the second option: plus or minus square root of 20
Hope this helped :)

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Find the arc length and area of a sector with radius R =60 inches and central angle equals 30° round your answer to the nearest

Black_prince [1.1K]

Answer:

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(b)942.48 Square Inches

Step-by-step explanation:

Given a sector of a circle with the following dimensions:

Radius of the circle =60 inches

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(a)Arc Length

Arc Length $=\dfrac{\theta}{360^\circ}X2\pi r$

$=\dfrac{30}{360^\circ}X2*60*\pi\\\\=10\pi\\\\=31.42$ Inches (correct to the nearest hundredth)$

(b)Area of the sector

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$=\dfrac{30}{360^\circ}X\pi*60^2\\\\=300\pi\\\\=942.48$ Square Inches (correct to the nearest hundredth)$

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djyliett [7]

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Step-by-step explanation:

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