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Talja [164]
2 years ago
13

Jim needs to move his firewood from his truck to the woodpile in his house. He estimates that he will move 1/8 of the total wood

in 45 minutes. Which unit rate can he use to help him plan how long it will take for him to move all the firewood?
Please explain how you found your answer and thank you
Mathematics
1 answer:
Rudik [331]2 years ago
7 0

Answer:

45x

Step-by-step explanation:

x=the unit rate :)

have a good day

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Answer:

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Step-by-step explanation:

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PLEEASSEEEE Answer ASAP. Due in 5 Minutes. 25 points!!!!!!!!!
jonny [76]

Answer:

Here we will use the relationships:

a^n*a^m = a^{n + m}

(a^n)^m = a^{n*m}

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And a number:

a^n

is between 0 and 1 if a is positive and larger than 1, and n is negative.

if a is positive and 0 < a < 1, then we need to have n positive such that:

0 < a^n < 1

A) 5^3*5^{-4} = 5^{3 + (-4)} = 5^{-1}

This is between zero and 1,

B) \frac{3^5}{3^{-6}} = 3^{5 - (-6)} = 3^{11}

This is greater than 1, because the exponent is positive.

C) (\frac{1}{4})^3*( \frac{1}{4})^2 = (\frac{1}{4})^{2 + 3} = (\frac{1}{4})^5

Because a is smaller than 1, and the exponent is positive, then the expression is between 0 and 1.

D) \frac{(-7)^5}{(-7)^7} = (-7)^{5 - 7} = -7^{-2}

The exponent is negative (and pair) then the expression is between 0 and 1.

Remember that when the exponent is pair, we always have that:

(-N)^m = (N)^m

So (-7)^-2 = 7^-2

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The answer is 3x^2 + 19x - 12.
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check the picture below.


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6 0
3 years ago
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