Find the common ratio, r, for the given geometric sequence.2, 6, 18, 54, . . .
A. 3
B. 
C. 81
D. 6
Answer: A
Mathematics
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Use a graphing calculator to solve the nonlinear system. Give x- and y-coordinates to the nearest hundredth.y = 
x2 + y2 = 5.7
A. {(-1.50, 1.86), (1.84, 1.52)} B. {(-1.84, -1.52), (1.50, -1.86)} C. {(-1.50, -1.86), (1.84, -1.52)} D. {(-1.84, 1.52), (1.50, 1.86)}
Mathematics
If possible, completely factor the expression.
?
?
A. 
B. 
C. 
D. 
E. not factorable
Mathematics
Multiply.(z - 4)(z - 3)
A. 2z + 12 B. 2z2 - 12 C. z2 - 7z + 12 D. z2 + 7z - 12
Mathematics
Find the indicated term of the sequence.The eighth term of the arithmetic sequence whose first term is -3 and whose common difference is -2
A. -17 B. 11 C. 13 D. -19
Mathematics