The answer is 20!
−100×(−20)=?
2000
Answer:

Step-by-step explanation:

Hope this helps you.
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Answer:
B
Step-by-step explanation:
10×1=10
0+10=10
Hence they're equal
Answer:
C 5a^2 +70a +240
Step-by-step explanation:
We have given these following functions:

h(a+4)
This function is:



f[h(a+4)]

Thus

The correct answer is given by option C.

is conservative if there is a scalar function
such that
. This would require



(or perhaps the last partial derivative should be 4 to match up with the integral?)
From these equations we find





so
is indeed conservative, and the gradient theorem (a.k.a. fundamental theorem of calculus for line integrals) applies. The value of the line integral depends only the endpoints:

