3 years ago

What is x to the power of 3 divided by x to the power of -5

1 answer:

4 0

X to the power of 8
When dividing powers, you subtract the "small numbers". When multiplying, you add them. 3-(-5) = 8

Hope it helps!

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the area of a rectangular book cover is 4x^2-6x-40. The width of the book cover is 2x-8. what is the length?

lyudmila [28]

Answer:
2x+5

<span>4x^2-6x-40 factor
2(2x+5)(x-4) multiply
(2x+5)(2x-8) = area
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</span>

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3 years ago

Idk how to explain it so here is a pic

DiKsa [7]

Answer:

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Step-by-step explanation:

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gavmur [86]

Answer:

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Step-by-step explanation:

3x + 5y = 2 | ×2 |

2x - 4y = 20 | ×3 |

6x + 10y = 4

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____________--

22y = -56

y = -56/22

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10x - 20y = 100

_____________+

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x = 108/22

x = 54/11

5x - y

= 5(54/11) - (-28/11)

= 270/11 + 28/11

= 298/11

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3 years ago

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Answer:

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Step-by-step explanation:

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