Find all values that make the expression undefined.
A. 
B. 9
C. 3, -3
D. 3
Answer: C
Mathematics
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Solve.The speeds of pulleys are inversely proportional to the lengths of their diameters. The diameter of pulley A is 18 cm and the diameter of pulley B is 8 cm. If pulley B turns at 342 rpm's, how fast does pulley A turn?
A. 749.3 rpm's B. 769.5 rpm's C. 152 rpm's D. 174 rpm's
Mathematics
Solve.5x + 2y + z = -112x - 3y - z = 177x + y + 2z = -4
A. (3, 0, -4) B. (0, -6, 1) C. (0, 6, -1) D. (-3, 0, 4)
Mathematics
Use the given table of y = ax2 + bx + c to solve ax2 + bx + c = 0.
Y1 = -X^2/2+X+3/2
A. 1, -3 B. -1, 3 C. 0, 1.5 D. -1, 1.5
Mathematics
Solve the inequality.
A. 
B. 
C. 
D. 
E. 
Mathematics