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AleksandrR [38]
3 years ago
15

The area of a compact disc is 78.53 square centimeters. What is the radius of the disc? Use pi = 3.14

Mathematics
1 answer:
Tom [10]3 years ago
5 0

Answer:

r = 5 cm

Step-by-step explanation:

A = πr²

78.53 = (3.14)r²

divide by 3.14

25 = r²

r = ±5

r = 5

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When a force of 30 N acts on a certain object the acceleration of the object is 5m/s2 if the force is changed to 54 N what will
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Answer:

The correct answer is 9 m per second^{2}

Step-by-step explanation:

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6 0
3 years ago
1. Find the slope of a line passing through (56, 67) and (-12, -50)
fomenos

Answer:

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Step-by-step explanation:

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5 0
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When solving the equation 2x + 5 = 13, what is your first step?
Olin [163]

Answer:

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Step-by-step explanation:

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