Evaluate the integral.
A. 
+ C
B. 
+ C
C. 
+ C
D. 
+ C
Answer: B
Mathematics
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Solve the problem by integration.Find the average value of the function 
from x = 3 to x = 7.
A. 
B. 
C. e21 - e9
D. 
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Solve the problem.?10 = a
+ b for a pair of positive integers a and b. The value of b for which this happens is
A. 34. B. 10. C. 61.5. D. 55. E. none of these
Mathematics
Translate to an equation and solve. What percent of 50 is 13?
A. 13% B. 40% C. 80% D. 26%
Mathematics
Solve.A farmer's silo is the shape of a cylinder with a hemisphere as the roof. If the height of the silo is 113 feet and the radius of the hemisphere is r feet, express the volume of the silo as a function of r.
A. V(r) = ?(113 - r)r3 + 
?r2
B. V(r) = ?(113 - r)r2 + 
?r3
C. V(r) = ?(113 - r) + 
?r2
D. V(r) = 113?r2 + 
?r3
Mathematics