Solve the problem.Use the sequence of equations to find the unknown sum.1 = 11 - 4 = -31 - 4 + 9 = 6 . . . . . . . . 1 - 4 + 9 - . . . 81 = ?
A. -36
B. 27
C. -55
D. 45
Answer: D
Mathematics
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A. ? B. {(-2, 6)} C. {(6, -2)} D. {(-2, -6)}
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Determine whether the given ordered pair is a solution of the system.(-1, 5)4x = 9 - y2x = 22 - 4y
A. not a solution B. solution
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Solve the inequality.
> 
A. (-19, 1) or (1, 5) B. (-19, 1) or (5, ?) C. (-?, -19) or (1, 5) D. (-?, -19) or (5, ?)
Mathematics
Find the slope of the line through the given pair of points.(4, -9) and (-1, -2)
A. - 
B. - 
C. 
D. - 
Mathematics