Solve the equation.
(8x - 12) = 
(15x - 10)
A. -1
B. 
C. 1
D. -6
Answer: A
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Solve the problem.An investment is worth $3836 in year 0. By year 5 it has grown to $6376. Let I be the value of the investment in year x. The linear equation I = 508x + 3836 models the value, I, of the investment on year x. Interpret the slope.
A. The value of the investment increased by $508 between year 0 and year 5. B. The value of the investment is increasing at a rate of $508 per year. C. The value of the investment is increasing at a rate of $3836 per year. D. The value of the investment is decreasing at a rate of $508 each year.
Answer the question.A grab bag contains eleven wrapped boxes. Five of the boxes contain dolls and the other six contain puzzles. How many boxes must be taken to be sure that at least one box contains a doll and one box contains a puzzle?
A. 7 boxes B. 8 boxes C. 6 boxes D. 5 boxes
Match the vector equation with the correct graph.
r(t) = (1 - t2)j + 3tk; -1 ? t ? 1
A. Figure 8 B. Figure 7 C. Figure 4 D. Figure 2
Write one or more inequalities that describe the set of points.The interior of the sphere of radius 3 centered at the point (-5, -2, 5)
A. (x + 5)2 + (x + 2)2 + (x - 5)2 < 9 B. (x - 5)2 + (x - 2)2 + (x + 5)2 ? 9 C. (x - 5)2 + (x - 2)2 + (x + 5)2 > 9 D. (x + 5)2 + (x + 2)2 + (x - 5)2 > 9