Solve the equation and check.
A. 60
B. 51
C. 45
D. 53
E. 48
Answer: B
Mathematics
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Find the value.Let f(x, y) = 
+ xy. Find f(9, 9).
A. 1 B. 82 C. 80 D. 162
Mathematics
Solve the problem.x varies inversely as y2, and x = 6 when y = 8. Find x when y = 2.
A. x = 144 B. x = 4 C. x = 96 D. x = 24
Mathematics
Solve.-b + 3 = 9
A. b = 12 B. b = -12 C. b = 6 D. b = -6
Mathematics
Solve the system by using the inverse of the coefficient matrix.2x + 8y + 6z = 204x + 2y - 2z = -23x - y + z = 11
A. {(2, 1, 6)} B. ? C. {(-1, 2, 1)} D. {(2, -1, 4)}
Mathematics