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Flauer [41]
3 years ago
11

The minute hand of a clock is 7 in. Long how far does the point of the hand travel in 60 minutes?

Mathematics
1 answer:
Semmy [17]3 years ago
4 0

Answer:

Step-by-step explanation:

60 minutes is one hour, which is all the way around the outside of the clock one time.  This distance is represented by the circumference of a circle, assuming that the clock is in fact circular.  The formula for the circumference of a circle in terms of the radius is

C=2\pi r

Our radius is 7, so the distance around the outside of that particular clock (and how far the minute hand travels if it goes around the clock one time) is

C=2\pi (7) or

C = 14π

If you want the decimal equivalency for that, multiply in pi as 3.1415 and round to whatever place you need.  In decimal form, that is

C = 43.9 inches

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<em>Additional comment</em>

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2 years ago
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Step-by-step explanation:

6 0
3 years ago
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pishuonlain [190]

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Evaluate the expression 3.14(a2 + ab) when a = 3 and b = 4. (Input decimals only, such as 12.71, as the answer.)
soldier1979 [14.2K]
A= 3
b= 4

=3.14(a^2 + ab)
substitute the given a & b values in expression

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multiply inside parentheses

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add inside parentheses

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multiply

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ANSWER: 65.94

Hope this helps! :)
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