Solve the systems of equtions using the addition method. 
A. {(0, 0)}
B. {(-1, -1)}
C. no solution; ?
D. {(-1, 1)}
Answer: D
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Identify the numeral as Babylonian, Mayan, or Greek. Give the equivalent in the Hindu-Arabic system.
A. Babylonian; 31 B. Mayan; 11 C. Mayan; 16 D. Mayan; 21
Use a truth table to determine whether the symbolic form of the argument is valid or invalid.~ p ? qq ? r----? p ? r
A. 
Symbolic argument is invalid.
B. 
Symbolic argument is valid.
C. 
Symbolic argument is invalid.
D. 
Symbolic argument is valid.
Factor completely.x2 + 35x + 36
A. (x - 12)(x + 3) B. (x + 36)(x - 1) C. (x + 12)(x - 3) D. Prime
Find the equation of the line passing through the indicated two points. Write the equation in point-slope form.(-4, -8) and (2, 16)
A. y + 8 = 4(x + 4) or y - 16 = 4(x - 2) B. y + 8 = 4(x - 4) or y - 16 = 4(x + 2) C. y - 8 = 4(x - 4) or y + 16 = 4(x + 2) D. y - 8 = 4(x - 4) or y - 16 = 4(x - 2)