Perform the indicated operation.Find the difference between (2n7 - 14n6 - 19) and (3n6 + 4n7 - 16).
A. -2n7 - 17n6 - 3
B. -22n13
C. -2n7 - 17n6 - 35
D. -2n7 - 10n6 - 35
Answer: A
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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 1.2 units to the right, stretch vertically by a factor of 4, and shift down by 6 units. B. Shift 4 units to the right, stretch vertically by a factor of 1.2, and shift down by 6 units. C. Shift 4 units down, stretch vertically by a factor of 1.2, and shift 6 units to the right. D. Shift 4 units to the left, stretch vertically by a factor of 1.2, and shift down by 6 units.
Write the decimal number as a percentage.0.026
A. 0.26% B. 2.6% C. 26% D. 0.026%
Find the vertices and the foci of the given ellipse.81x2 + 64y2 = 5184
A. V: (-9, 0), (9, 0);
F: (- 
, 0), (
, 0)
B. V: (0, -9), (0, 9);
F: (0, - 
), (0, 
)
C. V: (0, -81), (0, 81);
F: (0, -9), (0, 9)
D. V: (0, 81), (64, 0)
F: (0, 9), (8, 0)
Solve the problem.Suppose a cost-benefit model is given by 
where y is the cost in thousands of dollars for removing x percent of a given pollutant. Find the cost for removing 60% of the pollutant.
A. $8 thousands B. $2 thousands C. $9.2 thousands D. $79.5 thousands