Determine if the sequence is arithmetic. If the sequence is arithmetic, find the common difference.a1 = 9, an = an - 1 + 7
A. yes, 9
B. yes, 1
C. yes, 7
D. no
Answer: C
Mathematics
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Find the indicated sum. If necessary, round to four decimal places.S10 for the geometric sequence $500, $500(1.08), $500(1.08)2, . . .
A. 759.357 B. 14,486.5625 C. 8322.7437 D. 7243.2812
Mathematics
Use the properties of logarithms to solve.log 6 (4x - 5) = 1
A. 
B. 
C. 
D. 7
Mathematics
Perform the indicated operations and simplify the result. Leave the answer in factored form.
+ 
A. 
B. 
C. 
D. 
Mathematics
Suppose that ? is in standard position and the given point is on the terminal side of ?. Give the exact value of the indicated trig function for ?.(-7, -2); Find cot ?.
A. - 1
B. 
C. 
D. - 
Mathematics