Find an expression for the nth term of the arithmetic sequence. 6.5, 6.9, 7.3, 7.7, 8.1, . . .
A. an = 0.4n + 5.9
B. an = 0.3n + 6.1
C. an = 0.4n + 6.5
D. an = 0.4n + 6.1
Answer: D
Mathematics
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Use the graph to estimate any solutions to the given equation on the interval 
csc x = 
sec x 
A. 0
B. 
, 
C. 
, 
D. None
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Find the sum, if it exists.
A. - 
B. 
C. 
D. Does not exist
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Factor. Check by multiplying.9 + 3w + 27y
A. 9(1 + 3w + 27y) B. 3(3 + w + 9y) C. 3(3 + 3w + 27y) D. 3(3 + w + 27y)
Mathematics
Solve the equation by the square root property. If possible, simplify radicals or rationalize denominators. Express imaginary solutions in the form 
13x2 - 2 = 0
A. 
B. 
C. 
D. 
Mathematics