70.6k views
10 votes
Please help ASAP

Solve 2^(x − 1) = 11 for x using the change of base formula log base b of y equals log y over log b.
A) −0.711

B) 1.289

C) 2.459

D) 4.459

User Ionn
by
7.4k points

1 Answer

6 votes

Answer:

D

Explanation:

2^(x-1)=11

(x-1)*ln(2)=ln(11)

x-1=ln(11)/ln(2)

x=ln(11)/ln(2)+1

get a calculator and evaluate this, you'll get

User Unnie
by
6.3k points
Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.