Write in logarithmic form.
53=125
log5125=3
Evaluate log1530
You may use your calculator. Round to the nearest hundredth if necessary.
1.26
log2(5x-4)=log2(10x-15)
x=11/5 or x=2.2
Solve. Round to the nearest hundredth if necessary.
154x+1=153x-2
x=-3
Solve. Round to the nearest hundredth if necessary.
7x=32
x=1.78
Write in exponential form.
log216=4
24=16
Without using a calculator, evaluate
log28
3
Solve each equation. Round to the nearest hundredth if necessary.
log34+log3(x+2)=log362
x=13.5 or x=27/2
Solve. Round to the nearest hundredth if necessary.
42x* 45=410
x=2.5 or x=5/2
Solve. Round to the nearest hundredth if necessary.
8x-2=13
x=3.23
Write in logarithmic form.
35x=20
log320=5x
Without using a calculator, evaluate log2(-3).
Explain how you know.
No solution.
Solve each equation. Round to the nearest hundredth if necessary.
log4(4a-2)=2
a=4.5 or a=9/2
Solve. Round to the nearest hundredth if necessary.
43x=32
x=5/6 or x=0.83
Solve. Round to the nearest hundredth if necessary.
35x+1=37
x = 0.65
Write in exponential form.
log536=x-2
5x-2=36
Evaluate without using a calculator,
log2(1/2)
-1
Solve each equation. Round to the nearest hundredth if necessary.
log8(3-2x)=1/3
x=1/2 or x=0.5
Solve. Round to the nearest hundredth if necessary.
27=(1/9)x+3
x=-4.5 or x= -9/2
Solve. Round to the nearest hundredth if necessary.
3 * 10x + 4=52
x=1.20
Write in exponential form.
log 100=2
102=100
Without using a calculator, evaluate
log819
1/2
Solve each equation. Round to the nearest hundredth if necessary.
log(2x-8) - log2=2
x=104
Solve. Round to the nearest hundredth if necessary.
(1/2)a * 42a = 8
a=1
Solve. Round to the nearest hundredth if necessary.
5 * 13x-2 - 3 = 42
x=2.86