Solve the problem.Suppose a projectile is launched from the origin into the first quadrant with an initial velocity v0 feet per second at an angle ? with the horizontal. If the only force acting on the projectile is the force of gravity (with acceleration, 
then the time of flight, t, is given by 
A golf ball is hit with an initial velocity of 49 ft/sec with an angle 
Find the time of flight, t. Round to the nearest hundredth of a second
when necessary.
A. 2.55 sec
B. 1.29 sec
C. 3.07 sec
D. 2.78 sec
Answer: D
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Evaluate the expression.61
A. 
B. 6
C. 1
D. -6
Solve the problem.A pick-up truck is fitted with new tires which have a diameter of 41 inches. How fast will the pick-up truck be moving when the wheels are rotating at 335 revolutions per minute? Express the answer in miles per hour rounded to the nearest whole number.
A. 50 miles per hour B. 7 miles per hour C. 41 miles per hour D. 20 miles per hour
Find the foci of the ellipse whose equation is given.36(x - 1)2 + 25(y - 3)2 = 900
A. foci at (-1, 3 - 
) and (-1, 3 + 
)
B. foci at (1, 3 - 
) and (1, 3 + 
)
C. foci at (2, 3 - 
) and (2, 3 + 
)
D. foci at (3, 1 - 
) and (3, 1 + 
)
Solve the problem.Find the area of the right triangle ABC with A = (-2, 7), B = (7, -1), C = (3, 9).
A. 29 square units
B. 
square units
C. 58 square units
D. 
square units