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inysia [295]
2 years ago
12

What is the area of the beach ball with a diameter of 14 in. ?

Mathematics
2 answers:
Drupady [299]2 years ago
8 0

Answer:

  615.8 in²

Step-by-step explanation:

The area of a sphere is given by the formula ...

  A = 4πr² . . . . . sphere of radius r

In terms of diameter, the area is ...

  A = 4π(d/2)² = πd²

__

For a diameter of 14 inches, the area of the beach ball is ...

  A = π(14 in)² = 196π in² ≈ 615.8 in²

The area of the ball is about 615.8 square inches.

Juliette [100K]2 years ago
6 0

Answer:

The answer is 675.75 square Inches

Step-by-step explanation:

<h3><u>Given</u>;</h3>
  • Diameter (d) = 14 in.
<h3><u>To </u><u>Find</u>;</h3>
  • Area of beach ball = ?
<h3><u>Formula</u>;</h3>
  • Area = 4πr²

Now,

Radius (r) = diameter ÷ 2

r = 14/2 in.

r = 7 in.

Now,

A = 4πr²

A = 4 × 22/7 × (7)² in.

A = 4 × 22 × 7 in.

A = 615.75 square in.

Thus, The area of the beach ball with a diameter of 14 in. is 615.75 square in.

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4 0
3 years ago
Jenny bought 3 CDs that were each the same price. Including sales tax, she paid a total of $45.30 Of that total, $1.50 was tax.
enot [183]

Answer:

$13.6

Step-by-step explanation:

Jane bought 3 CDs that were each the same price. So let the price of each CD be ‘x’.

It is given that including sales tax, she paid a total of $45.30.

Also each CD had a tax of $1.50. We need to find out what the price of each CD was before tax.

Since the tax for all 3 CDs was same, the total amount of tax that she paid was:

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Therefore the total tax on 3 CDs is $4.50

Since we already know the total price she paid for the CDs including taxes, we can find the price of each CD by the following way:

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5 0
3 years ago
A central angle θ in a circle of radius 5 m is subtended by an arc of length 6 m.
Marina86 [1]

Answer:

θ=1.2 rad=68.7549°

Step-by-step explanation:

Given

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  • Arc of length 6 subtends angle of θ

\text{Arc Length}=\text{Radius}\times \text{Angle Subtented(in rad)}

⇒

6= 5\times \text{O}\\

θ=\frac{6}{5} =1.2rad

Therefore θ=1.2 rad

(π rad= 180°)

Therefore 1.2 rad= 68.7549°

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Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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