Why is 1 + (−5) equal to −4? (1 point)
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The monomial is a perfect cube is .
Perfect cubes are the numbers that are the triple product of the same number.
We have to determine
Which monomial is a perfect cube?
A perfect cube monomial must have three identical roots, such that the product of the roots equals the perfect square monomial.
It must be possible for the coefficient of a perfect cube monomial to be written in the form n3, where n equals the cube root of the coefficient.
A perfect cube monomial must have exponents on the variables.
Then
The monomial is a perfect cube is;
Hence, the monomial is a perfect cube is .
To know more about Monomial click the link is given below.
Formula to find the central angle is,
Where, s = arc length
r = radius
= central angle in radian.
According to the given problem,
r = 7 and .
First step is to plug in these values in the above formula. So,
By simplifying.
Since
s=14.65
Hence, arc length iss 14.65 feet.