Solve the problem.An experimental model for a suspension bridge is built in the shape of a parabolic arch. 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 6.25 inches tall and stand 50 inches apart. Find the vertical distance from the roadway to the cable at a point on the road 7.5 inches from the lowest point of the cable.
A. 0.76 in.
B. 0.56 in.
C. 2.25 in.
D. 0.36 in.
Answer: B
Mathematics
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A. 720
B. 120
C.
| 108? |
D. 60
Mathematics
Provide an appropriate response.Use a compass and straightedge to construct an angle of 45°.
What will be an ideal response?
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Simplify the rational expression. Assume that no variable has a value which results in a denominator with a value of zero.
A. 
B. 
C. 
D. 
Mathematics
Solve the system.
A. x = 0, y = -6, z = 1 B. x = 0, y = 6, z = -1 C. x = 3, y = 0, z = -4 D. x = -3, y = 0, z = 4
Mathematics