Find the first term and the common ratio of the geometric sequence.-3, -12, -48, -192, -768, . . .
A. a1 = 4, r = -12
B. a1 = -3, r = 
C. a1 = 4, r = -4
D. a1 = -3, r = 4
Answer: D
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Solve the problem.The 10 ft wall shown here stands 33 feet from the building. Find the length of the shortest straight beam that will reach to the side of the building from the ground outside the wall.
A. 43 ft B. 58.7 ft C. 56.7 ft D. 57.7 ft
Solve the system of equations by the addition method.
A. (- 
, 
)
B. (3, 5)
C. (-7, 8)
D. no solution
Solve.The total sales in dollars of some small businesses fluctuates according to the equation 
where x is the time in months, with x = 1 corresponding to January, 
and 
Determine the month with the greatest total sales and give the sales in that month.
A. March; $10,300 B. June; $6500 C. December; $10,300 D. September; $2700
The function f is one-to-one. Find its inverse.f(x) = (x + 7)3
A. f-1(x) = 
+ 7
B. f-1(x) = 
- 343
C. f-1(x) = 
- 7
D. f-1(x) = 
- 7