Which expression is equivalent to -(5y)^-4 ? a. 625/y^4 b. -625/y^4 c. 1/625y^4 d. -1/625y^4

The first step for solving this expression is to express it with a positive exponent using .

According to the exponent rules,, to raise a product to a power you must raise each factor to that power. This rule will change the expression to the following:

This makes the correct answer to your question ,, or option D.
Let me know if you have any further questions.
:)

Hi there!

83,960.11 rounded to the nearest hundred would be 84,000. The 960 rounds up to 1,000+, so that is your answer.
You can't round down on this, since 6 is bigger than five it tells 9 to go up and cancel out to be a zero.

Hope this helps!