Solve the problem.A coin is tossed upward from a balcony 400 ft high with an initial velocity of 16 ft/sec. During what interval of time will the coin be at a height of at least 80 ft? (h = -16t2 + v0t + h0.)
A. 0 ? t ? 5
B. 0 ? t ? 1
C. 4 ? t ? 5
D. 5 ? t ? 10
Answer: A
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Use the product rule to simplify the radical.
A. 14
B. 4
C. 2
D. 
Find the first four terms of the binomial series for the given function.
1/3
A. 1 - 
x + 
x2 - 
x3
B. 1 - 
x - 
x2 - 
x3
C. 1 - 
x - 
x2 - 
x3
D. 1 - 
x + 
x2 - 
x3
Provide an appropriate response. Identify the correct use of the distributive principle.
A. 2(3x - 5) = 6x - 7 B. -(2x - 5) = -2x + 5 C. -(-3x + 1) = 3x + 1 D. 2(3x - 1) = 3x + 2
Solve the problem.You have 96 feet of fencing to enclose a rectangular plot that borders on a river. If you do not fence the side along the river, find the length and width of the plot that will maximize the area.
A. length: 48 feet, width: 48 feet B. length: 72 feet, width: 24 feet C. length: 24 feet, width: 24 feet D. length: 48 feet, width: 24 feet