Evaluate the numerical expression. $3 ^ { - 4 }$
A) $\frac { 1 } { 81 }$
B) 81
C) $\frac { 1 } { 27 }$

Name: Evaluate the numerical expression. $3 ^ { - 4 }$ A) $\frac { 1 } { 81 }$ B) 81 C) $\frac { 1 } { 27 }$
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Question

Quizplus · Accepted Answer

To evaluate $3 ^ { - 4 }$, we need to write it as a fraction with a positive exponent. We can do this by using the rule that $a ^ { -n } = \frac { 1 } { a ^ { n } }$. 
So, $3 ^ { - 4 } = \frac { 1 } { 3 ^ { 4 } } = \frac { 1 } { 81 }$. Therefore, the correct choice is A.

Evaluate the Numerical Expression 3−43 ^ { - 4 }3−4 A) 181\frac { 1 } { 81 }811​

Evaluate the Numerical Expression $3 ^ { - 4 }$ A) $\frac { 1 } { 81 }$