Solve the problem.A coin is tossed upward from a balcony 390 ft high (h0) with an initial velocity (v0) of 
, according to the formula h(t) = -16t2 + v0t + h0, where t is time in seconds. During what interval of time will the coin be at a height of at least 70 ft?
A. 5 sec ? t ? 10 sec
B. 0 sec ? t ? 1 sec
C. 4 sec ? t ? 5 sec
D. 0 sec ? t ? 5 sec
Answer: D
Mathematics
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Write out the series.
A. 5 + 6 + 7 + 8 B. 2 + 3 + 4 + 5 C. 1 + 2 + 3 + 4 D. 2 + 3 + 4 + 5 + ...
Mathematics
Solve the trigonometric equation symbolically, graphically, or numerically for 
4 sin2 ? - 3 = 0
A. ? = 60°, 120°, 240°, 300° B. ? = 225°, 315° C. ? = 60°, 120° D. ? = 45°, 135°, 225°, 315°
Mathematics
Write the fraction.There are 100 centimeters in a meter. What fractional part of a meter does 39 centimeters represent?
A. 
B. 
C. 
D. 
Mathematics
Write the improper fraction as a mixed number or an integer.
A. -1
B. -3
C. -2
D. -2
Mathematics