Simplify the expression. If any variables exist, assume that they are positive.
+ 
A. 10
B. 4
C. 8
D. 16
Answer: D
Mathematics
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Determine if the given function y = f(x) is a solution of the accompanying differential equation.y' + y = e2xy = 3e- x + 
e2x
A. Yes B. No
Mathematics
Solve.The sales of a new product (in items per month) can be approximated by 
, where t represents the number of months after the item first becomes available. Find the number of items sold per month 3 months after the item first becomes available.
A. 775 items per month B. 8375 items per month C. 4375 items per month D. 1175 items per month
Mathematics
Solve the problem.Find (fg)(x) given f(x) = 3x + 1 and g(x) = 5x2 - 1.
A. 15x3 - 1 B. 3x3 + 5x2 - 1 C. 15x3 + 5x2 - 3x - 1 D. 15x3 - 3x2 + 5x - 1
Mathematics
Simplify.
A. 
B. 
C. 
D. already simplified
E. none of these
Mathematics