Question

Helppppp..... evaluate 3^-3=

Answer 1

For this case we must evaluate the following expression:

$3 ^ {3}$

We have by definition of properties of powers that:

$a ^ {- 1} = \frac {1} {a ^ 1} = \frac {1} {a}$

Then, rewriting the expression:

$3 ^ {- 3} = \frac {1} {3 ^ 3} = \frac {1} {27}$

ANswer:

$3 ^ {- 3} = \frac {1} {27}$

OptionB

Answer 2

ANSWER

The answer is

B

$\frac{1}{27}$

EXPLANATION

The given expression is

${3}^{ - 3}$

Use the negative index property;

${a}^{ - m} = \frac{1}{ {a}^{m} }$

We apply this property to get:

${3}^{ - 3} = \frac{1}{ {3}^{3} }$

This gives us:

${3}^{ - 3} = \frac{1}{3 \times 3 \times 3 }$

${3}^{ - 3} = \frac{1}{27}$

The correct option is B.