Use the formula for Sn to find the sum of the first five terms of the geometric sequence. Round to the nearest hundredth, if necessary.2, -6, 18, -54, . . .
A. 122
B. -242
C. 242
D. -122
Answer: A
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?In a scale drawing, 1/4" represents 10 miles. Which of the following is true?
A. ?An inch represents 20 miles. B. 6 miles is represented by 1/8". C. 3 miles is represented by 1/16" D. ?4 miles is represented by 1/10" E. ?5 miles is represented by 1/6".
Find the equation in standard form of a hyperbola centered at the origin that passes through the given points and whose graph approaches the given asymptotes.(-8, 0) and (8, 0); y = - 
x and y = 
x
A. 
- y2 = 1
B. 
- y2 = 1
C. 
- x2 = 1
D. x2 - 
= 1
Find the vertical asymptote(s) of the graph of the given function. y = 
A. y = 1 B. y = 0 C. x = 1 D. x = 0
Write an inequality involving the variable x that describes the set of numbers graphed.
A. -6 ? x < -2 B. -6 < x ? -2 C. -6 ? x ? -2 D. -6 < x < -2