Which value equals 2 to the power of negative three?

Unlock all questions

This demo includes only 20 questions. Upgrade to access hundreds of questions, flashcards, exam simulations, and disable ads.

Full question bankExam simulationsFlashcards
From $9.99Unlock all

Sharpen your skills for the Praxis Middle School Mathematics Test. Prepare with a variety of questions, hints, and explanations. Get ready to ace your exam!

Multiple Choice

Which value equals 2 to the power of negative three?

Explanation:
A negative exponent means you take the reciprocal of the base raised to the corresponding positive exponent. So 2 to the power of negative three becomes 1 divided by 2 to the power of 3. Since 2^3 = 8, that gives 1/8. The sign stays positive because the base is positive, and a negative exponent doesn’t flip the sign. The other options would correspond to 2^3 (which is 8) or a negative version, which isn’t what a negative exponent produces.

A negative exponent means you take the reciprocal of the base raised to the corresponding positive exponent. So 2 to the power of negative three becomes 1 divided by 2 to the power of 3. Since 2^3 = 8, that gives 1/8. The sign stays positive because the base is positive, and a negative exponent doesn’t flip the sign. The other options would correspond to 2^3 (which is 8) or a negative version, which isn’t what a negative exponent produces.

More Multiple Choice Questions
Subscribe

Get the latest from Examzify

You can unsubscribe at any time. Read our privacy policy