Solve the problem.In a sale, the price of a computer is reduced from $1240 to $1070. Find the discount and the rate of discount. Round the discount rate to the nearest tenth of a percent if necessary.
A. $170; 13.7%
B. $160; 12.9%
C. $170; 15.9%
D. $160; 15%
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 2001, and so on. Use the model to predict the sales for 2006 to the nearest tenth of a million.
A. $102.0 million B. $104.0 million C. $103.0 million D. $101.0 million
Use the figure below to answer the following question(s).
The repetitive nearest-neighbor tour starting with vertex A is A, B, C, D, E, A
A. only if x > 5. B. only if x > 9. C. only if x > 4. D. only if x > 1. E. regardless of the value of x.
Sketch the graph of the equation. Identify the vertex and the intercepts.y = 2x2 + 8x + 12
A. Vertex (-2, 4)
x-intercepts: none
y-intercept: 
B. Vertex: (-2, 4)
x-intercepts: none
y-intercept: (0, 12)
C. Vertex (2, 4)
x-intercepts: none
y-intercept (0, 12)
D. Vertex (2, 4)
x-intercepts: none
y-intercept 
Find the direction angles of the vector. Round to the nearest degree, if necessary.v = -2i + 3j - 4k
A. ? = 112°, ? = 124°, ? = 138° B. ? = 119°, ? = 43°, ? = 166° C. ? = 115°, ? = 51°, ? = 147° D. ? = 113°, ? = 55°, ? = 140°