Solve the equation by factoring.x2 = x + 72
A. {8, 9}
B. {1, 72}
C. {-8, -9}
D. {-8, 9}
Answer: D
Mathematics
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Graph the function.f(x) = -ln (x)
A. 
B. 
C. 
D. 
Mathematics
Solve the equation for the indicated variable. Assume no denominator is 0.2x2 - 4xy + 3y2 = 1, for y
A. y = 
B. y = 
C. y = 
D. y = 
Mathematics
Multiply. 
A. 5.5187 B. 55.187 C. 551.87 D. 0.55187
Mathematics
Solve the problem.An experimental model for a suspension bridge is built. In one section, cable runs from the top of one tower down to the roadway, just touching it there, and up again to the top of a second tower. The towers stand 80 inches apart. At a point between the towers and 28 inches along the road from the base of one tower, the cable is 1.44 inches above the roadway. Find the height of the towers.
A. 18 in. B. 15.5 in. C. 16.5 in. D. 16 in.
Mathematics