
Step-by-step explanation:
The area <em>A</em> under the curve can be written as

To evaluate the integral, let

so the integral becomes

or

Putting in the limits of integration, our area becomes

![\;\;\;\;= \frac{1}{2}[\ln (1+16) - \ln (1)]](https://tex.z-dn.net/?f=%5C%3B%5C%3B%5C%3B%5C%3B%3D%20%5Cfrac%7B1%7D%7B2%7D%5B%5Cln%20%281%2B16%29%20-%20%5Cln%20%281%29%5D)

Note: 
Answer:
{12,15}
Step-by-step explanation:
Given the function f(x) = x+5, if the range of the function is {7,9}, the domain of the function is derived by simply finding the value of the function at each end point.
At endpoint x = 7,
f(7) = 7+5
f(7) = 12
At endpoint x = 9
f(9) = 9+5
f(9) = 14.
The function domain is therefore at {12,14}
15x-10=20
+10 +10
15x=30
\15 /15
x=2
you add 10 to both -10 (they cancek eachother out) and 20 (equals 30)
Then you divide 30 by 15 (equals 2) and 15 by 15 (they cancel eachother out)
Then you get x=2
Answer:
x<=-5
Step-by-step explanation: