Find the product of the given complex number and its conjugate. Write the answer in the form a + bi.
+ 3i
A. 5 - 9i
B. 14
C. 5 + 9i
D. 2
Answer: B
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Determine if the series converges or diverges; if the series converges, find its sum.
A. Converges; 5
B. Converges; 1
C. Converges; 
D. Diverges
Solve the problem.Crafty Bill's Cool Car Sales opened as a used car sales lot in 2006. The graph shows the number of cars sold f as a function of time t. Find and interpret f(2010). 
A. 600; Crafty Bill's Cool Car Sales sold 600 cars in 2010. B. 600; Crafty Bill's Cool Car Sales sold 600 cars in 2006. C. 650; Crafty Bill's Cool Car Sales sold 650 cars in 2010. D. 450; Crafty Bill's Cool Car Sales sold 450 cars in 2010.
Find a matrix A such that W = Col A.W = 
A. 
B. 
C. 
D. 
Find ?y for the given values of x1 and x2.y = 4x + 3; x1 = 4.5, x2 = 4
A. 2 B. 4 C. -2 D. -8