Solve by elimination.-2x - 4y = 3-4x - 8y = -6
A. No solution
B. Infinite number of solutions
C. (6, 12)
D. (-6, -12)
Answer: A
Mathematics
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Solve the problem.A tank contains 3
gallons of water. Its capacity is 4
gallons. How much more water is needed to fill it?
A. 
gallon(s)
B. 1
gallon(s)
C. 
gallon(s)
D. 2
gallon(s)
Mathematics
Eliminate the parameter of the pair of parametric equations.x = 
, y = 2t + 5
A. y = 2x2 + 5
B. y = 2
- 5, x ? 0
C. y = 2
+ 5, x ? 0
D. y = 2x2 - 5
Mathematics
For the pair of functions, perform the indicated operation.f(x) = 7 - 7x, g(x) = -5x2 + 7
Find (f + g)(x).
A. -12x + 14 B. -12x2 - 7x + 14 C. -5x2 + 7 D. -5x2 - 7x + 14
Mathematics
Simplify.
A. 
B. 
C. 1
D. 
Mathematics