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mrs_skeptik [129]
3 years ago
7

Need help with question 20

Mathematics
1 answer:
tigry1 [53]3 years ago
5 0
I would start by dividing by all the multipliers of the parentheses.
\frac{PV}{nt} = r_{1} +r_{2}
Then, I would subtract the unwanted variable from the sum.
\frac{PV}{nt} -r_{2} = r_{1}
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4 0
3 years ago
What expression is not equivalent to 1/343
GREYUIT [131]
1 / 343
This is just equal to 
1 / 7^3 = 7^-3

A. 7^-1 * 7^-2 = 7^(-1 + -2) = 7^-3
B. 7^7 * 7^-10 = 7^( 7+ -10) = 7^-3
C. 7^-2 * 7^-5 = 7^(-2 + -5) = 7^-7
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So the correct answer is letter C. 7^-2 * 7^-5
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3 years ago
Which expression is equivalent to -8(10x-3)<br> (SHOW WORK)
oksian1 [2.3K]

Answer:

240

Step-by-step explanation:

-8(10×-3)

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30×-8=240

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Damm [24]

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Step-by-step explanation:

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Read 2 more answers
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