Find a formula of the sequence. Use an notation. Use a graphing calculator table to verify your formula.
, 
, 
, 
, ...
A. an = 
? 3n - 1
B. an = 
+ 3(n - 1)
C. an = (
)n - 1 + 
D. an = 
+ 
n - 1
Answer: A
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Find the indicated probability.A pair of dice is rolled 50 times and the sum is recorded each time. The results are shown in the table. 
Compute the empirical probability of getting a sum greater than 9.
A. 
B. 
C. 
D. 
Give a rule for the piecewise-defined function. Then give the domain and range.
A. f(x) = 
; Domain: {-6, -1}, Range: (-?, ?)
B. f(x) = 
; Domain: (-?, ?), Range: {-6, -1}
C. f(x) = 
; Domain: {-6, -1}, Range: (-?, ?)
D. f(x) = 
; Domain: (-?, ?), Range: {-6, -1}
Two people decide to estimate the height of a flag pole. One person positions himself due north of the pole and the other person stands due east of the pole. If the two people are the same distance from the pole and 23 feet from each other, find the height of the pole if the angle of elevation from the ground at each person's position to the top of the pole is 58° (see the figure). Apply the rules regarding the use of significant digits when determining your answer.
?
?
?
Height of pole = __________ ft
Fill in the blank(s) with the appropriate word(s).
If possible, find 5A – 4B.
a. 
b. not possible
c. 
d. 
e. 