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ipn [44]
3 years ago
5

Do not multiply by pi. Just use the whole number and do not try to include pi in the

Mathematics
1 answer:
IrinaK [193]3 years ago
4 0

Answer:

Surface area = 1808.64in² and volume is 7234.56in³

Step-by-step explanation:

The figure above is a sphere, and it has a diameter of 24in

Radius = ?

Radius = diameter / 2

R = 24 / 2

R = 12in

Surface area of of sphere = 4πr²

Volume of a sphere = 4/3 πr³

π = 3.14

1. Surface area = 4 * 3.14 * 12²

Surface area = 4 * 3.14 * 144

Surface area = 1808.64in²

2. Volume of the sphere = 4/3πr³

Volume = 4/3 * 3.14 * 12³

Volume = 4/3 * 3.14 * 1728

Volume = 7234.56in³

The surface area of the sphere is 1808.64in² and the volume is 7234

56in³

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Write with fractional exponents.
marusya05 [52]

Hi there!  

»»————- ★ ————-««

I believe your answer is:  

y^\frac{2}{3}

»»————- ★ ————-««  

Here’s why:  

  • We are supposed to rewrite a radical expression as an expression with fraction exponents.

⸻⸻⸻⸻

The rule for a fraction exponent is:

a^{\frac{x}{y}}=\sqrt[y]{a^x}\\\\\\\huge\boxed{\frac{\text{Power}}{\text{Root}}}

⸻⸻⸻⸻

We are given the expression of \sqrt[3]{y^2}.

⸻⸻⸻⸻

\boxed{\text{Rewriting the expression:}}\\\\\sqrt[3]{y^2}\\\\\text{The '3' is the root and the '2' is the power.}\\\\\rightarrow \sqrt[3]{y^2} \\\\\rightarrow {y^{\frac{2}{3}}

⸻⸻⸻⸻

\text{The answer should be: } \boxed{y^\frac{2}{3} }

⸻⸻⸻⸻

»»————- ★ ————-««  

Hope this helps you. I apologize if it’s incorrect.  

7 0
3 years ago
An artist can paint 4 paintings in 2 hours. What is this artists unit rate?
koban [17]
The unit rate is 2 paintings per hour.
4 0
3 years ago
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Answer:

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Step-by-step explanation:

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5 is the answer
7 0
2 years ago
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