Solve the problem.A rock is thrown vertically upward from the surface of an airless planet. It reaches a height of 
meters in t seconds. How high does the rock go? How long does it take the rock to reach its highest point?
A. 360 m, 6 sec
B. 714 m, 6 sec
C. 1,320 m, 12 sec
D. 720 m, 12 sec
Answer: A
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Find the Jacobian for the given transformation.
A. 24v2 B. 12u2 C. 12v2 D. 24u2
Calculate the value of the following numerical expression.
÷ 
A. 
B. 
C. 
D. 
Solve the problem.Suppose that the perimeter of the seed triangle in the construction of the Koch snowflake is 10. Then the length of the boundary of the Koch snowflake is
A. 16. B. infinite. C. 0. D. 20. E. none of these
Solve.Smallville and Big City are about 1950 miles apart. At 10:00 A.M. an airplane leaves Smallville for Big City flying at 300 miles per hour. At the same time an airplane leaves Big City for Smallville flying at 350 miles per hour. How long will it be before the two airplanes meet?
A. 3 hr B. 6 hr C. 8 hr D. 4 hr