Answer:
The answer should be 2r - 56
Sorry if im wrong
Step-by-step explanation:
Answer:
z = -9.538546756+ 15.26486573i
Step-by-step explanation:
z = |z| cos theta + |z| i sin theta
We know |z| and theta
z = 18 cos 122 +18i sin 122
z = -9.538546756+ 15.26486573i

We know that y=7x, so we just need tu put it into the 1st equation

So we found x. Now we can find y

Answer:
x=1, y=7; or (1;7)
A. The unknown variable is the area of the smaller rectangle.
B. 3/7=x/84

C. No. 12 does not equal 15.
Using integration, it is found that the area between the two curves is of 22 square units.
<h3>What is the area between two curves?</h3>
The area between two curves y = f(x) and y = g(x), in the interval from x = a to x = b, is given by:

In this problem, we have that:
.
Hence, the area is:


Applying the Fundamental Theorem of Calculus:


The area between the two curves is of 22 square units.
More can be learned about the use of integration to find the area between the two curves at brainly.com/question/20733870