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Travka [436]
3 years ago
6

The radius of a circular rug is 5 feet. How much ribbing will you need to buy to go around the

Mathematics
2 answers:
3241004551 [841]3 years ago
8 0

For this case we must find the perimeter of the circular carpet.

By definition, the perimeter of a circle is given by:

P = 2 \pi * r

Where:

r: It is the radius of the circle

According to the statement we have:

r = 5 \ ft

Substituting:

P = 2 * 3.14 * 5\\P = 2 * 3.14 * 5\\P = 31.4 \ ft

So, you need31.4 \ ft

Answer:

31.4 \ ft

leonid [27]3 years ago
5 0

The length around the rug is the circumference.

The formula is C = 2 x PI x r

C = 2 x 3.14 x 5 = 31.4 feet

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A roof drops 6 feet for every 3 feet forword,determine the slope of the roof the slope can be positive or negative
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Since the roof is decreasing in height as it goes forward, I know that the slope must be negative. The equation to find the slope is rise/run. The vertical change, or the rise, is -6 feet, so that value goes on top of the fraction. The horizontal value, or the run, is 3 feet so that goes on the bottom of the fraction.

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3 years ago
if the value of x varies directly as the value of y , and x = 16 when y = 3/4 , what is the value of x when y = 3/8 ?
Olin [163]

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3 years ago
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