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 12.25 inches tall and stand 70 inches apart. Find the vertical distance from the roadway to the cable at a point on the road 14 inches from the lowest point of the cable.
A. 2.16 in.
B. 7.84 in.
C. 1.76 in.
D. 1.96 in.
Answer: D
Mathematics
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Fill in the missing value.96.2 hg = kg
A. 9620 B. 96.2 C. 9.62 D. 0.962
Mathematics
Factor the trinomial by grouping.2x2 + 7x + 14x + 49
A. (2x + 7)(2x + 7) B. (x + 7)(2x + 7) C. (2x + 7)(7x + 2) D. prime
Mathematics
Solve the following system by any appropriate method. If there is no real number solution, so state.x2 + y2 - 100 = 02y = x + 10
A. (-10, 0), (6, 8) B. (0, 5), (8, 9) C. (10, 0), (-10, 0), (6, 8) D. (0, 5), (0, - 5), (8, 9)
Mathematics
Perform the indicated operation. Assume that all variables are nonnegative.3
- 7
A. 4
B. -4
C. -4
D. 10
Mathematics