Solve the system of equations by substitution.
A. (7, 0)
B. (0, -7)
C. (1, -8)
D. no solution
Answer: B
Mathematics
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Evaluate the integral.
Mathematics
Solve the system by graphing. If there isn't a unique solution to the system, state the reason.8x + y = 0-8x + y = -16
A. (1, 16) B. (1, -8) C. (-1, -8) D. (-1, 8)
Mathematics
Solve by addition or substitution. x + 2y = -4-5x + 2y = 32
A. (-1, -6) B. (-5, 0) C. (-6, 1) D. ?
Mathematics
Factor the sum or difference of two cubes.343y3 + 512
A. (7y + 8)(49y2 + 56y + 64) B. (7y - 8)(49y2 + 56y + 64) C. (7y + 8)(49y2 - 56y + 64) D. (343y - 8)(y2 + 56y + 64)
Mathematics