Solve the problem.An oil storage tank has the shape of a right circular cylinder with a hemisphere at each end. If the volume of the tank is 2000.0 ft3 and the (cylindrical) length is 
find the radius r (of each end).
A. 5.3612 ft
B. 5.3625 ft
C. 5.3615 ft
D. 5.3613 ft
Answer: D
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In each group of four products, one is wrong. Use estimation to determine which product is incorrect.
A. 181 × 90 = 16,290 B. 213 × 32 = 6816 C. 4034 × 60 = 242,040 D. 41 × 432 = 18,233
Use the simplex method to maximize the given function. Assume all variables are nonnegative.
Maximize 
subject to
A. maximum: 126 at
,
,
B. maximum: 337 at
,
,
C. maximum: 386 at
,
,
D. maximum: 43 at
,
,
E. maximum: 368 at
,
,
Find the work done by F over the curve in the direction of increasing t.F = - 
i + 
j + 
k; C: r(t) = 
i + 
j + 7tk, 0 ? t ? 
A. W = 
+ 
?2
B. W = 
+ 
?2
C. W = 
+ 
?2
D. W = 
+ 
?2
Find the quotient and write the answer in simplest form. Assume variables represent nonnegative values.
A. 
B. 3
C. 3
D. 2