Evaluate 2 to the power -3.
Answer and explanation
Correct answer: D. 1/8
- Step 1: A negative power means the reciprocal: 2 to the power -3 = 1 / (2 to the power 3). Step 2. = 1/8. Answer: 1/8. Why not the others: -8 makes the answer negative instead of taking the reciprocal, -6 multiplies 2 by -3, and 1/6 takes the reciprocal of 2 x 3 instead of 2 to the power 3.
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