Solve the problem.The solid lies between planes perpendicular to the x-axis at x = -2 and x = 2. The cross sections perpendicular to the x-axis are circles whose diameters stretch from the curve 
to the curve 
Find the volume of the solid.
A. 49?
B. 49?2
C. 
?2
D. 
?2
Answer: C
Mathematics
You might also like to view...
Complete.7 ft = 
in
A. 252 B. 28 C. 84 D. 21
Mathematics
Differentiate the function.r(t) = (cot t)i + (csc t)j
A. r'(t) = (-sec2 t)i - (tan t sec t)j B. r'(t) = (-csc2 t)i - (cot t csc t)j C. r'(t) = (sec2 t)i + (tan t sec t)j D. r'(t) = (csc2 t)i + (cot t csc t)j
Mathematics
Graph the point.
A. 
B. 
Mathematics
Solve the problem.The library is to be given 5 books as a gift. The books will be selected from a list of 21 titles. If each book selected must have a different title, how many possible selections are there?
A. 20,349 B. 5.109094217e+19 C. 4.257578514e+17 D. 2,441,880
Mathematics