Solve using the elimination method.2 x - y = 8-2 x + y = -8
A. No solution
B. (4, 6)
C. (6, 5)
D. Infinite number of solutions
Answer: D
Mathematics
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Use the substitution formula to evaluate the integral.
A. - 2
B. - 4
C. 2 - 8
D. - 2 + 8
Mathematics
Factor the polynomial using the negative of the greatest common factor.-10x2 - 15
A. -5(2x2 - 3) B. 5(-2x2 + 3) C. 5(-2x2 - 3) D. -5(2x2 + 3)
Mathematics
Find the sum of the finite geometric series using a formula.1 - 4 + 16 - 64 + 256
A. -341 B. 205 C. -205 D. 341
Mathematics
Solve the system.x - y + z = -5x + y + z = 3x + y - z = 1
A. {(-2, 4, 1)} B. {(1, -2, 4)} C. ? D. {(-2, 1, 4)}
Mathematics