Solve the problem.A rock falls from a tower that is 320 feet high. As it is falling, its height is given by the formula 
How many seconds will it take for the rock to hit the ground 
Round to the nearest tenth, if necessary.
A. 4.5 sec
B. 17.4 sec
C. 6400 sec
D. 17.9 sec
Answer: A
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Evaluate the expression according to the order of operations.11 ? 
- 14 ? 
A. 497 B. 35 C. 119 D. 413
Solve the problem.Two cars start from the same point and travel in the same direction. If one car is traveling 59 miles per hour and the other car is traveling at 45 miles per hour, how far apart will they be after 9.1 hours?
A. 946.4 miles B. 536.9 miles C. 127.4 miles D. 409.5 miles
Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.
A. 
B. 
C. 
D. 
Determine which of the following methods is the best choice for solving the given equation: factoring, using the principle of square roots or using the quadratic formula. Then, solve the equation.2x2 + 10x + 2 = 0
A. Square root principle or factoring; -2
B. Square root principle; -10, 0
C. Factoring; -5, 4
D. Quadratic formula; 