Solve the problem.A coin is tossed upward from a balcony 330 ft high with an initial velocity of 
The height of the coin, in feet, after t seconds is given by the function 
For what length of time will the coin be at a height of at least 90 feet?
A. 0 sec to 1 sec
B. 0 sec to 5 sec
C. 4 sec to 5 sec
D. 5 sec to 10 sec
Answer: B
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Find 
for the given function.y = -3x6(2x - 6)2
A. -84x7 + 504x6 - 648x5 B. -672x6 + 3024x5 - 3240x4 C. -156x6 + 864x5 - 90x4 D. -12x7 + 72x6 - 18x5
Solve the problem.An airplane is flying in the direction 70° west of north at 674 km/hr. Find the component form of the velocity of the airplane, assuming that the positive x-axis represents due east and the positive y-axis represents due north.
A. 
B. 
C. 
D. 
Provide an appropriate response.In an unbounded region, will there always be a solution?
What will be an ideal response?
Solve. Round your answer to the nearest tenth, if necessary.An object is thrown upward from the top of a 
building with an initial velocity of 48 feet per second. The height, h, of the object after t seconds is given by the quadratic equation 
When will the object hit the ground?
A. In 5 seconds B. In 160 seconds C. In 2 seconds D. In 7 seconds