Solve the problem.The sales of a mature product (one which has passed its peak) are given by the function 
where t is time in years. Find the sales after 7 years if 
and 
A. 32,164
B. 16,082
C. 74,504
D. 27,962
Answer: A
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?Which of the following is true? ?
A.
?a · b = GCF(a,b) · LCM(a,b)
B.
?The LCM of a and b is a subset of the GCF.
C.
?
D.
?The GCF ? LCM
E.
?a, c, and d only
F.
?a and c only
Solve the problem.Find the volume that remains after a hole of radius 1 is bored through the center of a solid sphere of radius 2. Round to the nearest tenth.
A. 21.8 B. 65.3 C. 6.9 D. 5.4
Solve the problem.Find equations for the horizontal and vertical tangent lines to the curve 
A. Horizontal: 
at 
, 
at 
, 
at 
, 
at 
; vertical: 
at 
at 
at 
, 
at 
B. Horizontal: 
at 
, 
at 
, 
at 
, 
at 
; vertical: 
at 
at 
at 
, 
at 
C. Horizontal: 
at 
, 
at 
, 
at 
, 
at 
; vertical: 
at (3, 0), x = 1 at (-1, ?), 
at 
, 
at 
D. Horizontal: 
at 
, 
at 
, 
at 
, 
at 
; vertical: 
at 
at 
at 
, 
at 
Use the frequency polygon to answer the following.The frequency polygon shows the salaries of employees of a small company.
The least number of employees are in which salary group(s)?
A. $4000-$8000 and $44,000-$48,000 B. $24,000-$28,000 C. $36,000-$40,000