Determine whether the sequence is arithmetic. If so, find the common difference. (Assume that n begins with 1.)
?
an ?= 8 + 6n
?
A. -6
B. -8
C. 6
D. 8
E. not arithmetic
Answer: C
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Answer the following statement(s) true (T) or false (F)
There is no value in a survey that includes less than 10% of the population of interest.
Refer to the circle graph to solve the problem.Time Required to Install Carpeting in a House (Work Shift = 8 hours) 
In which activity was the least amount of time spent? How many hours did this activity take?
A. Removing old carpet; 
hour
B. Installing new carpet; 3 hours
C. Cleaning up; 
hour
D. Moving furniture; 
hours
Add or subtract as indicated. Write the answer in lowest terms.
- 
A. 22
B. 
C. 
D. 1
Solve the problem.The radius, r, of a sphere can be found using the formula 
where S is the surface area. If the surface area is 13,760 square inches, what is the radius? (Use 3.14 for ?, and round your answer to the nearest tenth of an inch.)
A. 66.2 in. B. 58.7 in. C. 33.1 in. D. 103.9 in.