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Jlenok [28]
3 years ago
13

What is (-15)^6 • 20^6

Mathematics
1 answer:
stepan [7]3 years ago
3 0
-90 plus 120 = 30 is correct
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(8x2 + 8x) – (-9x2 + 8x)
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Answer:

17 x^2

Step-by-step explanation:

(8x^2 + 8x) – (-9x^2 + 8x)

Distribute the minus sign

8x^2 + 8x + 9x^2 - 8x

Combine like terms

17 x^2 +0x

17x^2

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3 years ago
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169

Step-by-step explanation:

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The length of a rectangle is four times its width.
mixer [17]

Let width be x

  • length=4x

ATQ

\\ \sf\longmapsto 2(x+4x)=70

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There are 3 times as many novels as comic books in a bookstore.If there are 2480 books altogether, how many comic books are ther
irga5000 [103]

Answer:

there are 620 comic books

Step-by-step explanation:

let number of comic books be x

total books=3x+x

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