Solve log_2(x) = 7.
Answer and explanation
Correct answer: C. 128
- Step 1: By definition, log_2(x) = 7 means x = 2^7.
- Step 2: x = 128.
Answer
128.
Why not the others: '14' multiplies base and exponent instead of raising the base to the power; '49' swaps base and exponent; '9' adds base and exponent.
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