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Is [tex]5\left(\frac{1}{5^3}\right)=5\left(5^3\right)[/tex]? Explain.

A. Yes; both expressions are equal to 625.

B. Yes; both expressions are equal to [tex]\frac{1}{25}[/tex].

C. No; the first expression is equal to [tex]\frac{1}{25}[/tex] and the second expression is equal to 625.

Answer :

To determine whether the expressions [tex]\(5\left(\frac{1}{5^3}\right)\)[/tex] and [tex]\(5\left(5^3\right)\)[/tex] are equal, we need to evaluate each expression separately.

1. First Expression: [tex]\(5\left(\frac{1}{5^3}\right)\)[/tex]

- First, calculate [tex]\(5^3\)[/tex]. [tex]\(5^3\)[/tex] means multiplying 5 by itself three times:
[tex]\[
5 \times 5 \times 5 = 125
\][/tex]
- Now, we need to find [tex]\(\frac{1}{5^3}\)[/tex]:
[tex]\[
\frac{1}{125}
\][/tex]
- Multiply this result by 5:
[tex]\[
5 \times \frac{1}{125} = \frac{5}{125} = \frac{1}{25} = 0.04
\][/tex]

So, the value of the first expression is [tex]\(0.04\)[/tex].

2. Second Expression: [tex]\(5\left(5^3\right)\)[/tex]

- Again, calculate [tex]\(5^3\)[/tex]:
[tex]\[
5^3 = 125
\][/tex]
- Multiply this result by 5:
[tex]\[
5 \times 125 = 625
\][/tex]

So, the value of the second expression is [tex]\(625\)[/tex].

Comparing both results, the first expression evaluates to [tex]\(0.04\)[/tex] and the second expression evaluates to [tex]\(625\)[/tex]. Clearly, these two values are not equal.

Therefore, the correct answer is:

No; The first expression is equal to [tex]\(\frac{1}{25}\)[/tex] (or 0.04) and the second expression is equal to 625.

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