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marshall27 [118]
2 years ago
9

Arc CD is One-fourth of the circumference of a circle. What is the radian measure of the central angle?

Mathematics
1 answer:
Alex2 years ago
8 0

Answer:

\frac{\pi }{2}

Step-by-step explanation:

Since the arc is \frac{1}{4} of the circumference, then

central angle = \frac{1}{4} × 2π ← angle in whole circle

central angle = \frac{2\pi }{4} = \frac{\pi }{2}

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Grace read 9 books in 3 months what was her rate of reading Books per month​
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Answer:

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Step-by-step explanation:

9 books ÷ 3 months = 3 books per month :)

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Circle D is shown. Angle A C B intercepts arc A B. Arc A B has a measure of 76 degrees. What is the measure of AngleC ? 38° 76°
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I think the answer is 76 ...
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Which is a correct first step in solving the inequality –4(2x – 1) > 5 – 3x?distribute –4 to get –8x 4 > 5 – 3x.distribute
Leviafan [203]

Answer:

Option A is correct.

The first step in solving the inequality is:

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Step-by-step explanation:

The distributive property says that:

a\cdot(b+c) =a\cdot b + a\cdot c

Given the inequality:

-4(2x-1)> 5-3x

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Therefore, the first step in solving the inequality is:

to distribute -4 to get  -8x + 4> 5-3x

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2 years ago
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How does the value of 874.12 change if the decimal point is moved two places to the left?
Rashid [163]

Answer:

C

Step-by-step explanation:

When you move the decimal either to the right or the left, you change the value. To divide any number by 10, move the decimal point one place to the left. For example:  

0.7

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70

700

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2 years ago
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The formula F=9/5(k-273.15)+32 converts a temperature from kelvin K to degrees Fahrenheit F.
Bezzdna [24]

Step One

Subtract 32 from both sides.

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Step Two

Multiply by 5/9 on both sides.

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5/9*(F - 32) = k - 273.15

Step Three.

Add 273.15 to both sides.

5/9*(F - 32) + 273.15 = k

Problem B

F = 180

<em><u>Solve</u></em>

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k = 355.4   <<< Answer

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