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2 years ago

11

in justin's school,0.825 of students participate in a sport. if there are one thousand students in justin's school, how many pat

icipate in a sport?

1 answer:

goblinko [34]2 years ago

7 0

175 because 1,000-825=175

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Step-by-step explanation:

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Surface Area of Cylinder=2πrh+2πr2

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Find the surface area when r is 8 inches and h is 8 inches.

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$\qquad$ B. 154π in²

$\qquad$ C. 288π in²

$\qquad$ D. 256π in² ☑

We are given –

$\qquad$ ⇢Radius of cylinder , r = 8 inches

$\qquad$ ⇢ Height of cylinder, h = 8 inches.

We are asked to find surface area of the given cylinder.

Formula to find the surface cylinder given by –

$\bf \star \pink{ Surface\: Area_{(Cylinder)} = 2\pi rh +2\pi r^2 }$

Now, Substitute given values –

$\sf \twoheadrightarrow Surface\: Area_{(Cylinder)} = 2\pi rh +2\pi r^2$

$\sf \twoheadrightarrow Surface\: Area_{(Cylinder)} = 2 \pi \times 8 \times 8 + 2\pi \times 8^2$

$\sf \twoheadrightarrow Surface\: Area_{(Cylinder)} = 2 \pi \times 8^2 + 2\pi \times 8^2$

$\sf \twoheadrightarrow Surface\: Area_{(Cylinder)} = 2\pi \times 64 +2\pi \times 64$

$\sf \twoheadrightarrow Surface\: Area_{(Cylinder)} =128 \pi + 128\pi$

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Henceforth,Option D is the correct answer.

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2 years ago

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I'm not sure I understood your question completely but I hope this helps.

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