u = 1+3e<span>-x</span>
so that (Don't forget to use the chain rule on e<span>-x</span>.)
du = 3e<span>-x</span>(-1) dx = -3e<span>-x</span> dx ,
or
(-1/3)du = e<span>-x</span> dx .
However, how can we replace the term e<span>-3x</span> in the original problem ? Note that
.
From the u-substitution
u = 1+3e<span>-x</span> ,
we can "back substitute" with
e<span>-x</span> = (1/3)(u-1) .
Substitute into the original problem, replacing all forms of x, getting
(Recall that (AB)C = AC BC .)
Answer:
m=3
Step-by-step explanation:
subtract the e from both sides so you now have 15=5m divide each by 5 and you get 3=m
Answer:
The numbers 4 and -4 are the same distance away from 0 on the number line. The number -63 is less than the number 4. The number -63 is further away from 0 than the number 4 on the number line
All four sides are congruent.