Solve the problem.If a rocket is propelled upward from ground level, its height h in meters after t sec is given by h(t) = -9.8t2 + 98t. During what interval of time will the rocket be higher than 
A. 8 sec < t < 10 sec
B. 0 sec < t < 4 sec
C. 0 sec < t < 6 sec
D. 4 sec < t < 6 sec
Answer: D
Mathematics
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Find y: y = e5ú1
a. 105 b. 151 c. 164 d. 178 e. 191
Mathematics
Solve.A stone is a unit in the British customary system. Paul weighs 68.2 kilograms. Convert this weight to stones and pounds. Round to the nearest pound. Use this conversion: 
A. 2 stone 9 lb B. 5 stone 10 lb C. 15 stone 0 lb D. 10 stone 10 lb
Mathematics
Solve the problem.A box weighing 64 lb is hanging from the end of a rope. The box is pulled sideways by a horizontal rope with a force of 27 lb. What angle, to the nearest degree, does the first rope make with the vertical?
A. 12° B. 23° C. 35° D. 46°
Mathematics
Evaluate -x for the given value of x.x = 4.6
A. -4 B. 4.6 C. -4.6 D. 4
Mathematics