Find the unknowns on the right side of the partial fraction decomposition.
= 
+ 
+ 
A. A = 
, B = - 
, C = 1
B. A = 
, B = 1, C = - 
C. A = - 
, B = 
, C = 1
D. A = - 
, B = 1, C = 
Answer: A
Mathematics
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Find the mean of the list of data.42, 64, 48, 38, 84, 53, 98, 109
A. 66 B. 65 C. 68 D. 67 E. 69
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Solve for the indicated letter.Solve S = ?rh + ?r2 for r.
A. r = 
B. r = 
C. r = 
D. r = 
Mathematics
Simplify.
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.Suppose that the labor cost for a building is approximated by 
where x is the number of days of skilled labor and y is the number of days of semiskilled labor required. Find the x and y that minimize cost C.
A. x = 36, y = 180 B. x = 8, y = 60 C. x = 16, y = 120 D. x = 60, y = 36
Mathematics