Solve the problem.A bridge is built in the shape of a parabolic arch. The bridge arch has a span of 146 feet and a maximum height of 40 feet. Find the height of the arch at 15 feet from its center.
A. 6.8 ft
B. 10.3 ft
C. 0.4 ft
D. 38.3 ft
Answer: D
Mathematics
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Find the absolute extremum within the specified domain.Maximum of f(x) = x2 - 4; [-1, 2]
A. (1, -3) B. (-2, 0) C. (-1, 3) D. (2, 0)
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Determine whether the two matrices are inverses of each other by computing their product.
and 
A. Yes B. No
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Solve.A certain car has a weight limit for all passengers and cargo of 1169 pounds. The four passengers in the car weigh an average of 175 pounds. Use an inequality to find the maximum weight of the cargo that the car can handle.
A. at most 584 pounds B. at most 994 pounds C. at most 469 pounds D. at most 6 pounds
Mathematics
Use the graph of y = f(x) to state the value of the requested quantity if it exists.
f(x)
A. does not exist B. 3 C. 1 D. -3
Mathematics