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fgiga [73]
3 years ago
7

An object is spinning around a circle at a rate of 420 revolutions per minute. If the circle has a diameter of 8 feet, what is i

ts angular speed in degrees per minute. Do not add the units into your answer.
Mathematics
1 answer:
Vera_Pavlovna [14]3 years ago
7 0

Answer:

Step-by-step explanation:

This seems more like a physics questions, but i'll help you  :P

the circle is 8 feet across or a radius of 4 feet

circumference of the circle is 2\pir  = 25.132741 feet

it's going around 420 times a minute

420 * 25.132741 = 10555.75132 feet per minute

10,555.75

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nekit [7.7K]

The second option is the correct answer

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The expression given to us is:

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Herein, we can simplify it by opening up the bracket and multiplying each term inside the bracket by the term which is outside the bracket.

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Rearranging the above expression in descending order of power we get:

16x^{4}+40x^{3} -24x^{2}

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Learn more about equation here brainly.com/question/14180340

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