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3 years ago

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A large spherical structure has a 37.5-foot radius. The sphere is covered with panels. If each panel has an area of about 49 ft2

, approximately how many panels would be needed to cover the entire sphere?
360

940

17,660

310,000

2 answers:

Citrus2011 [14]3 years ago

4 0

Answer:

Option (1)

Step-by-step explanation:

Radius of the spherical structure = 37.5 feet

Surface area of each panel = 49 square feet

Sphere is covered with panels.

Therefore, area of the panels needed = $\frac{\text{Total surface area of the sphere}}{\text{Area of one panel}}$

Surface area of the sphere = 4πr²

Here 'r' = radius of the sphere

For a sphere having radius 'r' = 37.5 feet,

Surface area of the sphere = 4π(37.5)²

= 17671.5 feet²

Number of panels required to cover the sphere = $\frac{17671.5}{49}$

= 360

Therefore, Option (1) will be the answer.

vodomira [7]3 years ago

3 0

Answer:

360

Step-by-step explanation:

got it right on edge

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3 years ago

2. CHEMISTRY How many liters of 15% acid and

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Answer:

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Step-by-step explanation:

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15% x 0.15x

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3 years ago

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Drupady [299]

Answer:

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Step-by-step explanation:

Given

$a(d) = 5d - 3$

Solving (a): Write as inverse function

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Swap positions of d and y

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Make y the subject

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Replace y with a'(d)

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