Suppose that y is inversely proportional to x. Use the given information to find the constant of proportionality k. Then use y = 
to find y for the given value of x.y = 12.5 when x = 5;
Find y given x = 25.
A. k = 62.5; y = 2.5
B. k = 70; y = 2.8
C. k = 2.5; y = 62.5
D. k = 55; y = 2.2
Answer: A
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A. 
B. 
C. 
D. 
Factor.x2 + 7x + 6
A. (x - 6)(x + 1) B. (x - 6)(x - 1) C. (x + 6)(x - 1) D. (x + 6)(x + 1)
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 are both 4 inches tall and stand 40 inches apart. Find the vertical distance from the roadway to the cable at a point on the road 6 inches from the lowest point of the cable.
A. 0.56 in. B. 0.36 in. C. 1.44 in. D. 0.16 in.
Convert.5.1 km = ____ m
A. 0.0051 B. 0.051 C. 510 D. 5100