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2 years ago

Some steps to rewrite the expression x3 − 4x + x2 − 4 as a product of three factors are shown below:

2 answers:

Ann [662]2 years ago

4 0

Its the first on A 100% positive i just did this and got it right hope i helped!<span />

nalin [4]2 years ago

3 0

I know step 5 is (x-2)(x+2)(x+1)
But I don't know what step 4 is.
Im stuck.

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nataly862011 [7]

42.1% of 375.4.....turn percent to decimal...." of " means multiply
0.421(375.4) = 158.0434.....so it would be B. 158.04

3 0

2 years ago

Naya [18.7K]

7π/12 lies in the second quadrant, so we expect cos(7π/12) to be negative.

Recall that

$\cos^2x=\dfrac{1+\cos(2x)}2$

which tells us

$\cos\left(\dfrac{7\pi}{12}\right)=-\sqrt{\dfrac{1+\cos\left(\frac{7\pi}6\right)}2}$

Now,

$\cos\left(\dfrac{7\pi}6\right)=-\cos\left(\dfrac\pi6\right)=-\dfrac{\sqrt3}2$

and so

$\cos\left(\dfrac{7\pi}{12}\right)=-\sqrt{\dfrac{1-\frac{\sqrt3}2}2}=\boxed{-\dfrac{\sqrt{2-\sqrt3}}2}$

7 0

2 years ago

xxTIMURxx [149]

Answers:answer is b because if you multiple y by the x you will get

5 0

1 year ago

Hitman42 [59]

Answer:

p=22

sooooooooooooooooo ezzzzzzzzzzzzzzzzzzzzz

6 0

2 years ago

kykrilka [37]

Answer:

The answer is C). He has learned about Kamkwamba’s story and wants it to reach a wider audience.

4 0

2 years ago