Solve the problem.A radio telescope has a parabolic surface. If it is 1 meter(s) deep and 
wide, how far is the focus from the vertex?
A. 100 m
B. 5 m
C. 1 m
D. 25 m
Answer: D
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Write an equation to describe the variation. Use k for the constant of proportionality.P varies jointly as R and S.
A. P + R + S = k B. P = k + R + S C. PRS = k D. P = kRS
Use a CAS integration utility to evaluate the triple integral of the given function over the specified solid region.
over the tetrahedron bounded by the coordinate planes and the plane 
A. 
B. 
C. 
D. 
Solve the problem. Assume that the minimum payment on a credit card is the greater of $27 or 3% of the unpaid balance.If the annual interest rate is 15.99%, find the difference between the minimum payment and the interest owed on an unpaid balance of $728.97 that is 1 month overdue.
A. $17.29 B. $12.76 C. $12.22 D. $14.29
Use the information in the table to solve the problem. Write your answer as a fraction in lowest terms.The table below shows the amounts of pollutants (in parts per million) in a sample of rainwater.
Find the ratio of pollutant E to pollutant A.
A. 
B. 
C. 
D. 