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6 votes
6 votes
Determine if each expression is equivalent to
\frac{ {7}^(6) }{ {7}^(3) }

Determine if each expression is equivalent to \frac{ {7}^(6) }{ {7}^(3) }-example-1
User Nathanchere
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1 Answer

21 votes
21 votes

The question says we are to check the options that are equal


(7^6)/(7^3)

Using the law of indices


(7^6)/(7^3)=7^{6-3\text{ }}=7^3

So we will check all the options(applying the laws of indices)

The first option is


7^9(7^(-6))=7^(9-6)=7^3

yes, the first option is equivalent

We will move on and check the second option


(7^(-8))/(7^(-11))\text{ = }7^(-8+11)=7^3

Yes the second option is equivalent

We will move on to check the third option


(7^5)(7^3)divideby7^{4\text{ }}=7^{5+3-4\text{ }}=7^4

No the third option is not eqquivalent to the question

We will move to tthe next option, fourth option


7^{-3\text{ }}*7^{6\text{ }}=7^(-3+6)=7^3

yes this option is equivalent to the fraction

Moving on to the fifth option


(7^3)^{0\text{ }}=7^(3*0)=7^0=\text{ 1}

No the fifth option is not equivalent to the question

User Toothygoose
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2.9k points