Find a so that the statement is true.
A. 7
B. 4
C. 5
D. 6
E. 0
Answer: D
Mathematics
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Find the derivative.y = 5 - 9x2
A. -18x B. -18 C. 5 - 18x D. 5 - 9x
Mathematics
Solve the problem.The future value of a simple interest investment is given by S = P(1 + rt), where P is the principal invested at a simple interest rate r for t years. What principal P must be invested for 
at the simple interest rate 
so that the future value grows to $3600.
A. $3503.65 B. $3472.67 C. $127.33 D. $3243.24
Mathematics
Find the determinant.det 
A. -34 B. 14 C. 64 D. 34
Mathematics
Graph the system of inequalities.y > x22x + 6y ? 12
A. 
B. 
C. 
D. 
Mathematics