Solve the problem.A coin is tossed upward from a balcony 242 ft high (ho) with an initial velocity (vo) of 
, according to the formula h(t) = -16t2 + vot + ho, where t is time in seconds. During what interval of time will the coin be at a height of at least 50 ft?
A. 3 sec ? t ? 4 sec
B. 0 sec ? t ? 1 sec
C. 0 sec ? t ? 4 sec
D. 4 sec ? t ? 8 sec
Answer: C
Mathematics
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Use the shell method to find the volume of the solid generated by revolving the shaded region about the indicated line.About the line y = 3x = y + 6
A. 
?
B. 
?
C. 
?
D. 99?
Mathematics
Decide if the given equation is a solution of the given differential equation.
= 2x + 6, y = x2 + 6x
A. No B. Yes
Mathematics
Determine the domain of the rational function.R(x) = 
A. {x
-3, - 
, 1}
B. {x
- 
, 1}
C. {x
-1, 
, 3}
D. {x
-1, 
}
Mathematics
If the tangent line to 
passes through the point (4, ?32), find 
(8) Select the correct answer.
a. 
(8) = 29
b. (8) = 19
c. (8) = 9
d. (8) = 34
e. (8) = ?9
Mathematics