124k views
12 votes
PLEASE HELP ME!!!!!!!!!

PLEASE HELP ME!!!!!!!!!-example-1
User AlexZvl
by
8.1k points

1 Answer

0 votes

Answer:

w=9

Explanation:

A negative exponent means that you take the reciprocal of the positive exponent.

For example, take 2^-2:

2^2 = 4. By the rule above,

2^-2 = 1/4.

According to a calculator, that's right.

Let's now take your question.

b^(-w) = 1/(b^9)

Because of the rule we just established, we know that

b^w = b^9 (taking the reciprocal, making the left-side exponent positive)

Since, if the bases are equal, the exponents are equal, the answer is:

w = 9

User Nils Kaspersson
by
7.8k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories