Solve the system of equations by Gaussian elimination. If there is an unlimited number of solutions, find two of them.x + y = 3x - y = -2
A. x = 
, y = - 1
B. Inconsistent
C. x = 
, y = 
D. x = 
, y = 
Answer: D
Mathematics
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Solve the problem.You park your car in a pay lot. Because you have a coupon, you get the first 
You pay for an extra 4
hr. How long can you park?
A. 8 hr B. 7 hr 15 min C. 7 hr 75 min D. 8 hr 15 min
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Factor when possible.a2 - 11ab + 24b2
A. (a + 3b)(a - 8b) B. (a - 3b)(a - 8b) C. (a + 3b)(a + b) D. Prime
Mathematics
Solve the equation.3(x + 3) + 11 = 5(x + 1) + 13
A. {1} B. {8} C. {13} D. {3}
Mathematics
Identify the equation as either an identity or not.
= 2 cos 2x
A. Not an identity B. Identity
Mathematics