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Maurinko [17]
3 years ago
7

If the area of a circle is 121pie square units, what is the diameter

Mathematics
1 answer:
velikii [3]3 years ago
4 0
Since you are given the area, we can solve for radius with this equation:
A_c = \pi r^2
r = \sqrt{ \frac{A_c}{ \pi } } = \sqrt{ \frac{121 \pi }{ \pi } } = \sqrt{121} = 11

The radius is 11, so the diameter must be 2 times that, which is 22. With the correct units, the answer is 22 units²
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Blababa [14]

Answer:

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QUESTION 5 · 1 POINT
natali 33 [55]

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( x - 1) ( 2x + 3)

Step-by-step explanation:

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You are designing a rectangular swimming pool that is to be sent into the ground. The width of the pool is 5 feet more than the
Vikentia [17]

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Find the roots of the cubic polynomial:

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Try the factor 5 first by plugging it in the equation:

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Lucky break!  No need to find the other roots because they will be negative, and you can't have a negative value for a pool depth.

So, depth = 5 ft

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1 year ago
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Mazyrski [523]

Answer:

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Factor by grouping.

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