3 answers
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To simplify the given expression, we can use the rule of exponents that states: 𝑎^(𝑚) / 𝑎^(𝑛) = 𝑎^(𝑚−𝑛).
Using this rule, we can rewrite the expression as:
5^(-3 + 7) / 5^(-7) = 5^4 / 5^(-7)
Using another rule of exponents, 𝑎^𝑚 / 𝑎^n = 𝑎^(𝑚−𝑛), we can subtract the exponents:
5^4 / 5^(-7) = 5^(4-(-7)) = 5^(4+7) = 5^11
Therefore, the expression is equivalent to 5^11.
The correct answer is D) 5^11.