Find the nth term an of the geometric sequence.1, 
, 5, 5
, . . .
A. an = 5(n+1)/2
B. an = 5(n-1)/2
C. an = 5n-1
D. an = 5n/2
Answer: B
Mathematics
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Solve the problem. Round answer to the nearest tenth, if necessary.The position of an object moving in a straight line is given by s
= t2 - 8t, where s is in feet and t is the time in seconds the object has been in motion. How long will it take the object to move 
?
A. 9.7 sec B. 20.0 sec C. 9.9 sec D. 20.9 sec
Mathematics
The table of values was generated by a graphing utility with a TABLE feature. Use the following table to solve. 
Which equation corresponds to Y2 in the table?
A. y2 = x + 3 B. y2 = 3x - 2 C. y2 = 3 - 2x D. y2 = 2x + 3
Mathematics
Find 
. Express the answer in standard form.z1 = 
z2 = 
(cos 45° + i sin 45°)
A. 
+ 
i
B. - 
i
C. - 
- 
i
D. 
Mathematics
Graph the function.f(x) = ex
A. 
B. 
C. 
D. 
Mathematics