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3 years ago

9

Pls help (4z - 12) - 12z

2 answers:

mr_godi [17]3 years ago

8 0

Answer:

−8z−12

Step-by-step explanation:

I hope this helps

Pavlova-9 [17]3 years ago

4 0

Answer: the question can only be simplified to -8z-12 because there is no equal sign.

Step-by-step explanation:

(4z - 12) - 12z

-8z-12

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Can someone help explain help explain how to evaluate 2/3x. x=1/2

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Simply plug in 1/2 for x.

2/3 (1/2)

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~Hope I helped!~

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3 years ago

Read 2 more answers

Simplify.Your answer should contain only positive exponents.

zhannawk [14.2K]

Step-by-step explanation:

1) $r^3r^3$

$\mathrm{Apply\:exponent\:rule}:\quad \:a^b\cdot \:a^c=a^{b+c}$

$=r^{3+3}$

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$=3k^{3+3}$

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3) $\left(3b^2\right)^3$

$\mathrm{Apply\:exponent\:rule}:\quad \left(a\cdot \:b\right)^n=a^nb^n$

$=3^3\left(b^2\right)^3$

$=27\left(b^2\right)^3$

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4) $\left(2m^3\right)^3$

$\mathrm{Apply\:exponent\:rule}:\quad \left(a\cdot \:b\right)^n=a^nb^n$

$=2^3\left(m^3\right)^3$

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$=8m^9$

5) $\frac{3r^3}{r^2}$

$\mathrm{Apply\:exponent\:rule}:\quad \frac{x^a}{x^b}=x^{a-b}$

$=3r^{3-2}$

$=3r^1$

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