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3 years ago

A sphere has a volume of 33.5 cubic inches. which value is closest to the radius of this sphere in inches?

Mathematics

1 answer:

EastWind [94]3 years ago

4 0

Radius = cube root (sphere volume * .75 / PI)radius = cube root (33.5 * .75 / PI)radius = cube root ( 7.9975358904)
radius =2 inches
Source: http://www.1728.org/diam.htm

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Lucy’s parents built a swimming pool in the backyard. Use 3.14 for π.

Rus_ich [418]

Answer:

Distance around the pool = 162.8 feet

Area of the pool = 957 square feet

Step-by-step explanation:

Distance around the swimming pool = Perimeter of the pool

Perimeter of the pool which is a composite figure will be,

= Circumference of the semicircle + Sum of three sides of the pool

= πr + 2×(length of the pool) + width of the pool

= 3.14×(10) + 2×40 + 20

= 62.8 + 80 + 20

= 162.8 ft

Area of the pool = Area of the semicircle + Area of the rectangular pool

= $\frac{1}{2}(\pi)(r)^{2}+(\text{length}\times \text{Width})$

= $\frac{1}{2}(3.14)(10)^2+(40\times 20)$

= 157 + 800

= 957 square feet

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2 years ago

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natta225 [31]

Since work = force * distance, the answer would 5*.5, which is 2.5 J

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3 years ago

Read 2 more answers

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elena55 [62]

I think that it it is 38

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