Express the following using negative exponents.
-$\frac { 1 } { 3 ^ { 9 } }$
A) $3 ^ { 9 }$
B) $3 ^ { - 9 }$
C) $9 ^ { - 3 }$
D) $3 - 10$

Question

Quizplus · Accepted Answer

To express a number with a negative exponent, we put the number in the denominator and the exponent becomes positive. Therefore, $\frac{1}{3^9}$ can be written as $3^{-9}$. Choice A is incorrect because it simply gives the original number. Choice C is incorrect because it changes the base to 9 instead of keeping it as 3. Choice D is incorrect because it is an expression, not an answer in the form of a number or letter.

Express the Following Using Negative Exponents 139\frac { 1 } { 3 ^ { 9 } }391​

Express the Following Using Negative Exponents $\frac { 1 } { 3 ^ { 9 } }$