Use a graphing calculator to find the sum of the geometric sequence. Round answer to two decimal places, if necessary.
A. -68.6
B. -66.8
C. -69.4
D. -68.2
Answer: D
Mathematics
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Find the slope of the polar curve at the indicated point.r = -4 cos ? - 6 sin ?, ? = 
A. - 
B. 
C. - 
D. 
Mathematics
Write the equation for the shape described.The circle with endpoints of a diameter at (3, -5) and (7, -4)
A. 
2 + 
2 = 
B. 
2 + 
2 = 101
C. 
2 + 
2 = 181
D. 
2 + 
2 = 17
Mathematics
Simplify the algebraic expression by collecting and combining like terms.-3(2x - 9) - 4x + 8
A. 10x + 35 B. 2x + 35 C. -10x + 35 D. -10x - 19
Mathematics
Find the center and radius of the circle.x2 + y2 + 6x - 2y + 10 = 81
A. (-1, 3), r = 81 B. (-3, 1), r = 9 C. (1, -3), r = 9 D. (3, -1), r = 81
Mathematics