Divide and simplify to the form a + bi.
A. 
- 
i
B. 
+ 
i
C. 
- 
i
D. 
- 
i
Answer: B
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Find the required value by setting up the general equation and then evaluating.Find y for x = 3 and z = 4 if y varies directly as x and inversely as z, and y = 72 when x = 6 and 
A. 90
B. 120
C. 
D. 
5x2 + 12x + 2 = 0
A. 
B. 
C. 
D. 
Solve the problem.The following chart shows the number of injuries in Babyland caused by drinking from aluminum cans for children 3 and under for the years 1995-2000.
Use the data from 1995 and 2000 to find a linear function that can be used to estimate the number of aluminum can injuries I, x years after 1995. Use your function to predict those years for which the number of aluminum can injuries will exceed 80,000.
A. I(x) = 4640x + 25,100; Years after 2006 B. I(x) = 4540x + 25,600; Years after 2007 C. I(x) = 4640x + 25,100; Years after 2005 D. I(x) = 4540x + 25,600; Years after 2008
If possible, factor the polynomial completely. If a polynomial cannot be factored, state that it is prime.x2 + 9x - 36
A. Prime B. (x + 12)(x - 3) C. (x - 12)(x + 3) D. (x - 12)(x + 1)