Solve. x2 - xy + 3y2 = 32x2 - 3xy + 4y2 = 3
A. (2, 0), (0, -2)
B. (-1, 1), (1, -1), (2, 0), (0, -2)
C. (1, 1), (-1, -1)
D. (1, 1), (-1, -1), (2, 0), (0, -2)
Answer: C
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Two statements are listed in which p, q, and r represent propositions. Are the two statements logically equivalent?(p or q) or r; p or (q or r)
A. No B. Yes
Solve the problem. Use the given table to find monthly payments. 
Assuming the mortgage is a 20-year adjustable rate mortgage, use the given information to find the monthly mortgage payment. Then make a rough estimate of the monthly payment for year 3 by calculating the monthly payment for a 20-year mortgage for the original amount at the new interest rate.P = $160,000; beginning interest rate, 5%; rate increases 1%, then 2%
A. $1056.00; $1940.80 B. $859.20; $1174.40 C. $1056.00; $1337.60 D. $1697.60; $1940.80
Solve.
= 
A. 6j B. 6, 3 C. 6 D. 6, 3j
Find the absolute value of the complex number.z = 2i
A. 2 B. -2 C. 0 D. 4