Question

Which of the following is an equivalent expression to 13^−5 ⋅13^−11 with only positive exponents, generated by applying the properties of exponents?(1 point)
Responses

1/13^16
Start Fraction 1 over 13 superscript 16 baseline end fraction

1/13^6
Start Fraction 1 over 13 Superscript 6 baseline End Fraction

1/26^16
Start Fraction 1 over 26 superscript 16 baseline end fraction

1/26^6

Answer 1

To simplify the expression \( 13^{-5} \cdot 13^{-11} \) using the properties of exponents, we can use the rule that states \( a^m \cdot a^n = a^{m+n} \).

1. Add the exponents:
\[
-5 + (-11) = -16
\]
So, \( 13^{-5} \cdot 13^{-11} = 13^{-16} \).

2. To express this with only positive exponents, we can use the property \( a^{-n} = \frac{1}{a^n} \):
\[
13^{-16} = \frac{1}{13^{16}}.
\]

Therefore, the equivalent expression with only positive exponents is:
\[
\frac{1}{13^{16}}.
\]

So the correct response is:
1/13^16