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Inessa05 [86]
3 years ago
12

Find the radius of a sphere with a surface area of 1024π square inches

Mathematics
1 answer:
agasfer [191]3 years ago
4 0

Answer:

<h2>R = 16 in</h2>

Step-by-step explanation:

The formula of a Surface Area of a sphere:

S.A.=4\pi R^2

R - radius

We have

S.A.=1024\pi\ in^2

Substitute:

4\pi R^2=1024\pi               <em>divide both sides by π</em>

4R^2=1024             <em>divide both sides by 4</em>

R^2=256\to R=\sqrt{256}\\\\R=16\ in

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A conical-shaped umbrella has a radius of 0.4 m and a height of 0.45 m. Calculate the amount of fabric needed to manufacture thi
bonufazy [111]

Answer:

The correct answer will be "0.756596 m²".

Step-by-step explanation:

The given values are:

The radius of an umbrella,

r = 0.4 m

The height of an umbrella,

h = 0.45 m

As we know,

The lateral surface of an umbrella will be:

⇒  \pi r\sqrt{r^2+h^2}

On substituting the values, we get

⇒  \pi \times 0.4\sqrt{(0.4)^2=(0.45)^2}

⇒  0.756596 \ m^2

So that the amount of fabric needed will be "0.756596 m²".

7 0
3 years ago
What are the mean, median, and mode for the following data set?
FrozenT [24]
Order the number:
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Mode:78
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3 0
3 years ago
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Lyrx [107]

Answer:

3(x+1)=2(x-1)

3x+3=2x-2

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3 0
2 years ago
What are the next two numbers 481, 491
Jobisdone [24]

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Step-by-step explanation:

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A lawyer has an annual income of $240,000. The income tax that doctor has to pay is 6%. What is the amount of income tax in doll
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Answer:

Step-by-step explanation:

240,000*6=14,400 dollars

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