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Artyom0805 [142]
3 years ago
14

The length of a rope is 12.072 centimeters. Is this number rational or irrational why

Mathematics
2 answers:
lilavasa [31]3 years ago
7 0
12.072 is irrational because it cannot be simplified into a fraction or ratio.
N76 [4]3 years ago
3 0
12.072 is rational because it could simplify into fraction which is 12072/1000 or 6036/500 or 3018/250 or 1509/125. Hope it help!
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How many complete rotations will the bowling ball make if it rolls straight down the center of the entire length of the lane. A.
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<h3>Answer: C) 26 complete rotations</h3>

===========================================

Explanation:

The diameter of the ball is 8.5 inches. So d = 8.5

The circumference of the circle with this diameter is

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C = 26.7035375555132 approximately.

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1 revolution = 26.7035375555132 inches

(1/26.7035375555132) revolution = 1 inch

1 inch = (1/26.7035375555132) revolution

1 inch = 0.03744822190398 revolution

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12 inches = 0.44937866284776 revolution

1 foot = 0.44937866284776 revolution

Now multiply both sides by 60

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60*1 foot = 60*0.44937866284776 revolution

60 feet = 26.9627197708657 revolutions

Round down to the nearest whole number to get 26

We can't round to 27 even though we're really close to it. This is because we are looking for the number of whole revolutions the ball makes.

Therefore, 60 linear feet correspond to 26 full rotations of the ball. There's a bit leftover, but it's not enough to make another full rotation.

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3 years ago
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