Solve the system by elimination.9x2 + y2 = 819x2 - y2 = 81
A. (0, 3), (0, -3)
B. (3, 0), (-3, 0)
C. (0, 9), (0, -9)
D. (9, 0), (-9, 0)
Answer: B
Mathematics
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A. {x|x is a real number and x ? -8 and x ? -9} B. {x|x is a real number and x ? 8 and x ? 9} C. {x|x is a real number} D. {x|x is a real number and x ? -8 and x ? 9}
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Collect like terms.6r - 10r2 + 12r2 + 10r
A. Cannot be simplified B. 18r C. 16r + 2r2 D. 18r2
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Complete the table of values for the given equation.y = -5
A. 0; 0; 0 B. 4; 4; 4 C. 1; 3; 5 D. -5; -5; -5
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Find the indicated term of the sequence.
A. 57
B. 52
C. -3
D. 55
E. -51
Mathematics