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3 years ago

Which expression is equivalent to 2 (×+7)-18×+4/5

Mathematics

1 answer:

Ksivusya [100]3 years ago

4 0

Answer:

14.8-16x

Step-by-step explanation:

2x+14-18x+0.8

14.8-16x

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Surface Area of Cylinder=2πrh+2πr2

Alex

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

$\qquad$ A. 160π in²

$\qquad$ 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 –

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

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

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

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

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

$\purple{\bf \twoheadrightarrow Surface\: Area_{(Cylinder)} = 256\pi \: in^2 }$

Henceforth,Option D is the correct answer.

8 0

2 years ago

Given the quadratic function y=5x^2−2x identify a, b and c.

saw5 [17]

Work shown above! Answer is
a = 5 b = -2 c = 0

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3 years ago

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Your aunt is asking your help in figuring out how to

Marizza181 [45]

Answer:

650

Step-by-step explanation:

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2 years ago

What is equivalent to 69

solong [7]

60+9
3*23
6*11.5
34.5*2

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3 years ago

What is the function rule for the following situation? Rex paid $20 for a membership to the pool and pays $300 each time he goes

asambeis [7]

f(x)=20+300x

Also, Rex should find a different pool because that fee is ridiculous.

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2 years ago