B.)
I can tell because the sin func starts from the top at 0 (if sin is positive)
Answer:

Because the 
The integral converges to 
Step-by-step explanation:
For this case we want to find the following integral:

And we can solve the integral on this way:


And if we evaluate the integral using the fundamental theorem of calculus we got:

Because the 
The integral converges to 
A direct variation has a constant slope, i.e. (y/x)= constant.
Both of the given two points give a slope of (y/x)=14/2=28/4=7, so the equation of the function is
y/x=7, or simply
y=7x
Answer:
New area: 12ft^2
Step-by-step explanation:
1/3 of 9 is 3
1/3 of 12 is 4
Area = l x w
so 3 x 4 = 12
(x,y)=(64/81, 70/81) I can provide a description if needed. I used the process of elimination.