Posted by Lucy on .
Solve, round to 4 decimal places if necessary:
3.9^m4=10.21
Answer:
(m4)In(3.9)=In(10.21)
m(In3.9)4(In3.9)=In(10.21)
m=(In10.21)+4(In3.9)/In3.9
m=7.7672/1.3609
m=5.7074
e^3x>=21
Answer:
Ine^3x>=21
3x=In21
x=In21/3
x=1.0148
Thanks

Algebra II 
Damon,
method right for first one but I did not do the arithmetic
however
e^3x>=21
Answer:
Ine^3x>=21 You mean ln 21
3x=In21
x=In21/3
x=1.0148 You forgot the "greater than" part