Question

Which expression is equivalent to

Answer 1

B)1/r^42, just simplify the expression using the rule of exponents

Answer 2

Answer: B.

Step-by-step explanation:

When there is an exponent of another exponent, you can multiply them together:

As such, the expression in the image can be simplified to

$r^{-7*6}$, or r ^ -42.

Negative exponents can also be represented by positive exponents in the denominator of a fraction.

For instance, $x^{-2}$ can be rewritten as $\frac{1}{x^2}$.

The correct answer is $\frac{1}{r^{42} }$.