Determine if the given ordered triple is a solution of the system.(1, 2, -5)
A. solution
B. not a solution
Answer: B
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List all equally likely outcomes in the sample space for the indicated experiment.The aces are separated from a deck of standard playing cards and shuffled. Two are randomly selected. Use "C" for clubs, "D" for diamonds, "H" for hearts, and "S" for spades.
A. {(C, D), (C, H), (C, S), (D, H), (D, S), (H, S)} B. {(C, D, H, S)} C. {(C, D), (C, H), (C, S), (D, C), (D, H), (D, S), (H, C), (H, D), (H, S), (S, C), (S, D), (S, H)} D. {(4, 4)}
Use the Gauss-Jordan method to solve the system of equations. If the system has infinitely many solutions, give the solution with y arbitrary. 7x - 5y = -21-4x + 3y = 12
A. {(-4, 1)} B. {(-3, 1)} C. ? D. {(-3, 0)}
Let x represent the number. Write the English phrase as an algebraic expression.Six times a number, decreased by 57.
A. 6x + 57 B. 6(x - 57) C. 6x - 57 D. 6(x + 57)
Find the distance between P and Q and the coordinates of the midpoint of the segment joining P and Q.
A. 4
; 
B. 4; 
C. 4
; 
D. 4; 