Solve the system of equations using the addition method. 2x + 25y = -1389x + 5y = 24
A. (-6, 6)
B. (6, -6)
C. (-5, 6)
D. (9, -9)
Answer: B
Mathematics
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Evaluate the integral.
A. 
tanh (10x - 9) + C
B. 
coth (10x - 9) + C
C. tanh (10x - 9) + C
D. 
sech3 (10x - 9) + C
Mathematics
Solve the problem.Consider the generic weighted voting system {q: w1, w2, w3, w4, w5}. Suppose that the winning coalitions are {P1, P2, P3}, {P1, P2, P3, P4}, {P1, P2, P3, P5}, and {P1, P2, P3, P4, P5}. Which players are critical in the grand coalition {P1, P2, P3, P4, P5}?
A. P1 only B. P1, P2, P3, and P4 C. P1, P2, and P3 D. None of the players E. none of these
Mathematics
Determine if the matrix is in row-echelon form.
A. No B. Yes
Mathematics
Perform the indicated operation. Simplify if possible.
+ 
A. 
B. 
C. 
D. - 
Mathematics