If , then the smallest value of such that is…

MATHEMATICS · Single correct · AP · AP Precalculus · Exponential and Logarithmic Functions · Exponential and Logarithmic Functions

Problem

\log 343 = 2.5353

, then the smallest value of

k

such that

7^k > 10^5

is _____. (a) 4 (b) 5 (c) 6 (d) 7