Without graphing the function, determine its amplitude or period as requested.y = 4 cos 
xFind the period.
A. 4
B. 6?
C. 
D. 
Answer: B
Mathematics
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Find the cost, including a sales charge of $1 per bond, for the transaction.Bond: WSNLast Price: 101.500Number Purchased: 12
A. $12,192.00 B. $11,988.00 C. $12,180.00 D. $10,150.00
Mathematics
Solve the problem.Use the graph of f(t) = cos t given below to evaluate f(?) graphically.
A. -1 B. 0 C. 1 D. 0.5
Mathematics
Graph the solution set of the system of inequalities.y ? log xy ? ?x - 5?
A. 
B. 
C. 
D. 
Mathematics
Solve the problem.A rock falls from a tower that is 78.4 m high. As it is falling, its height is given by the formula 
with t in seconds. How many seconds will it take for the rock to hit the ground (h = 0)?
A. 1254.4 sec B. 4 sec C. 8.6 sec D. 8.9 sec
Mathematics