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Which of the following is equivalent to the expression

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Which of the following is equivalent to the expression [#permalink]  28 Jul 2020, 11:12
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100% (00:16) correct 0% (00:00) wrong based on 6 sessions
Which of the following is equivalent to the expression $$\frac{ (ab)^3 c^0}{a^3b^4}$$ , where $$abc \neq 0$$

A. c

B. ab

C. abc

D. $$\frac{1}{b}$$

E. $$\frac{c}{ab}$$
[Reveal] Spoiler: OA

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Intern
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Re: Which of the following is equivalent to the expression [#permalink]  28 Jul 2020, 17:34
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Carcass wrote:
Which of the following is equivalent to the expression $$\frac{ (ab)^3 c^0}{a^3b^4}$$ , where $$abc \neq 0$$

c^0 = 1, so it can be dropped. (ab)^3 can be rewritten as (a^3)(b^3). a^3 cancels out and we are left with b^3/b^4, or 1/b. Thus the answer is D.
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Re: Which of the following is equivalent to the expression [#permalink]  29 Jul 2020, 06:09
Expert's post
Carcass wrote:
Which of the following is equivalent to the expression $$\frac{ (ab)^3 c^0}{a^3b^4}$$ , where $$abc \neq 0$$

A. c

B. ab

C. abc

D. $$\frac{1}{b}$$

E. $$\frac{c}{ab}$$

Given: $$\frac{ (ab)^3 c^0}{a^3b^4}$$

Simplify: $$\frac{ a^3b^3 (1)}{a^3b^4}$$

The $$a^3$$ terms cancel out to get: $$\frac{b^3}{b^4}$$

Simplify: $$\frac{1}{b}$$

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Re: Which of the following is equivalent to the expression   [#permalink] 29 Jul 2020, 06:09
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