Answer:
how long are you working? what are you asking for?
what is the percentage for?
Step-by-step explanation:
Answer:

Step-by-step explanation:
Step 1
Find the radius of the circular cross section
we know that
The circumference is equal to

we have

substitute and solve for r

simplify


Step 2
Find the area of the circular cross section
The area of the circle is equal to

we have

substitute


54=.9x Solve for x. x=54/.9=60
Answer:
d. f opens upward with a y-intercept at (0, 2); h opens downward with a y-intercept at (0, -2)