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DanielleElmas [232]
3 years ago
13

Need help with this khan academy question. Plus minus square root of negative nine equals plus or minus

Mathematics
1 answer:
klemol [59]3 years ago
3 0

Answer:

3i

Step-by-step explanation:

3i x 3i = -9

-3i x -3i = -9

Therefore the square root of -9 is 3i or -3i

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Please help me with this question!!!!!
amm1812

Answer:

B. H(x)=-.008(x-82)^{2}+83

Step-by-step explanation:

Well lets graph the following equation first,

H(x) = -.011(x - 82)^2 + 75

Then lets graph all the other equations.

Look at the image below↓

So A.

The purple line does not go farther or higher,

so A. is incorrect

B.

The black line goes higher and farther,

meaning it is correct.

C.

The red line goes farther but not higher.

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D.

Again the blue line does not go farther of higher.

So its wrong.

<em>Thus,</em>

<em>answer choice B. </em>H(x)=-.008(x-82)^{2}+83 <em>is correct.</em>

<em />

<em>Hope this helps :)</em>

3 0
4 years ago
Given h(x) = x^2-4/2, find h(-8)
vlada-n [284]

Answer:

62

Step-by-step explanation:

(-8)^2-2

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7 0
3 years ago
I don’t understand this plz help me out
kupik [55]
If your looking looking for the y-intercept its y=-3



I don't really understand what you are asking though....
3 0
3 years ago
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2 years ago
Factor the polynomial.<br> 5x4 + 10x3 + 15x2
Xelga [282]

Answer:

5x^2(x^2 + 2x + 3)

Step-by-step explanation:

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