Solve problems using a calculator.A train of 38 subway cars weighed a total of 389,766 lb. What was the average weight per car?
A. 10,232 lb
B. 10,245 lb
C. 10,257 lb
D. 10,259 lb
Answer: C
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Plot the points in the Cartesian plane. ? (-4, 1), (-5, -2), (5, 4), (2, -4) ?
A. ?
B. ?
C. ?
D. ?
E. ?
Find the equation from the graph.
A. y = 2x + 1
B. y = 2x - 1
C. y = 
x + 1
D. y = 
x - 1
Factor: 2a2 + 2ab - 12b2
a. (2a + 2b)(a - 6b) b. (2a - 3b)(a + 4b) c. (a + 3b)(2a - 4b) d. (a - 3b)(2a + 4b) e. (2a + 3b)(a - 4b)
Solve the problem.The year y when sales were s million dollars for a particular electronics company can be modeled by the radical equation y = 1.2
- 6, where y = 1 represents 2010, and so on. Describe the transformations needed to obtain the graph of this function from the graph of y = 
.
A. Shift 4 units to the right, stretch vertically by a factor of 1.2, and shift down by 6 units. B. Shift 4 units down, stretch vertically by a factor of 1.2, and shift 6 units to the right. C. Shift 4 units to the left, stretch vertically by a factor of 1.2, and shift down by 6 units. D. Shift 1.2 units to the right, stretch vertically by a factor of 4, and shift down by 6 units.