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3 years ago

02.05) simplify i22. (1 point) 1 −1 −i i

Mathematics

1 answer:

olga2289 [7]3 years ago

7 0

I^22 = i^(20 + 2) = i^20 x i^2 = (i^4)^(5) x (i)^2 = 1 x -1 = -1

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Does this equation represent a function?<br> Answer Yes

snow_lady [41]

Answer:

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Step-by-step explanation:

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3 years ago

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.

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2 years ago

How do you do 4(x-3) you have to use distributive property to remove the parentheses..

Oksana_A [137]

Answer:

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Step-by-step explanation:

Your question answers itself: you use the distributive property to remove the parentheses.

4(x -3) = 4(x) +4(-3) = 4x -12

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Answer:

Step-by-step explanation:

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2 years ago

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gizmo_the_mogwai [7]

Answer:

(0,6)

Step-by-step explanation:

So x=0, so plug in 0 for x. 5(0) + 6 - (0)^2 = 6

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3 years ago