Correct Answer: Option B

Explanation

\(\left(\frac{1}{2}\right)^{t - 1} = 64,\)

rewrite \(64\) as a power of \(\frac{1}{2}\):

\(64 = \left(\frac{1}{2}\right)^{-6}.\)

Equate the exponents: \(t - 1 = -6\)

Thus, \(t = -5\)

There is an explanation video available below.

• What is the meaning of agricultural sciences? Answer this

  1 Answers   ·   Agricultural Science   ·   2 days ago
• Does WAEC give Calculator to student for there exam? Answer this

  2 Answers   ·   Mathematics   ·   2 days ago
• 2(3)+2? Answer this

  1 Answers   ·   Mathematics   ·   2 days ago