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Mekhanik [1.2K]
3 years ago
14

What is the value of 7z^2 + 4 x 3w when w= 8 and z= -3

Mathematics
2 answers:
zepelin [54]3 years ago
6 0
64+96=160. I just plugged in the numbers!
Lesechka [4]3 years ago
5 0
So the answer would be 32x^3+63 right?

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Simplify 5x−4y+2(y+x)
RSB [31]

Answer:

7x -2y

Step-by-step explanation:

5x−4y+2(y+x)

Distribute

5x -4y +2y +2x

Combine like terms

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7 0
3 years ago
What is half of 11 5/8 inches
disa [49]
5/8 is 0.625 add 11 it becomes 11.625  multiply it by 0.5 it becomes 5.8125 
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3 0
3 years ago
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Help please; I need the right answer ​
Ad libitum [116K]

Answer:

C.

Step-by-step explanation:

\cos x+\sqrt{2}=-\cos x \\ 2\cos x = -\sqrt 2 \\ \cos x = -\dfrac{\sqrt 2}{2}\\ \\ \Rightarrow x = \pm \arccos\Big(-\dfrac{\sqrt 2}{2}\Big)+2k\pi,\quad x\in \mathbb{Z}\\ \Rightarrow x =\pm\dfrac{3\pi}{4}+2k\pi\\ \\ \\k = -1 \Rightarrow x < 0\\\\ k=0 \Rightarrow x 2\pi

3 0
3 years ago
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