To solve for the power of 10 that makes the equation \(3.75 \times 10^? = 0.0000375\) true, we first express \(0.0000375\) in scientific notation.
The number \(0.0000375\) can be rewritten as: \[ 0.0000375 = 3.75 \times 10^{-5} \]
Now, we have the equation: \[ 3.75 \times 10^? = 3.75 \times 10^{-5} \]
Since the coefficients (3.75 on both sides) are equal, we can compare the powers of 10: \[ 10^? = 10^{-5} \] Thus, \(? = -5\).
Therefore, the correct answer is: \(-5\).