Perform the indicated operation. Simplify, if possible.
- 
A. - 
B. 
C. 
D. 
Answer: A
Mathematics
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Which of the following is not a solution to the equation: 9x + y = 81? ?
A. ?(0, 81) B. ?(1, 72) C. ?(9, 0) D. ?(10, 9) E. ?(10, -9)
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Expand the number to its natural form.8.27 × 10-3
A. 0.00827 B. 0.827 C. 0.000827 D. 0.0827
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Find the vertex of the parabola.y = 4x2 + 2x - 9
A. (-0.5, -10) B. (0.25, -9.25) C. (-0.25, -9.25) D. (-0.25, -8.5)
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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, 8) B. (1, -8) C. (-1, -8) D. (1, 16)
Mathematics