Use a graphing calculator to approximate the vertex of the graph of the parabola defined by the following equation.y = 4x2 - x + 2
A. (-0.125, 1.9375)
B. (0.125, 2)
C. (0.125, 1.9375)
D. (0.125, 2.0625)
Answer: C
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Determine the logarithm in base 10 of the given number to four decimal places.4085
A. 3.6112 B. 8.3151 C. 8.8151 D. 3.1112
List the terms of the expression.4x3 + 5x2 - 3x + 6
A. 4x3, 5x2, -3x, 6 B. 4, x3, 5, x2, -3, x, 6 C. 4x3, 5x2, 3x, 6 D. 4x3 + 5x2, -3x + 6
Simplify the radical expression. Assume that all variables represent nonnegative real numbers.(
- 
)2
A. x2 - 2
+ y2
B. x - 
+ y
C. x - 2
+ 9y
D. x2 - 
+ y2
Business equipment is often depreciated using the double declining-balance method. In this method, a piece of equipment with a life expectancy of N years, costing C dollars, will depreciate to a value of V dollars in n years, where n is given by the formula:
A computer that cost $12,000 has a life expectancy of 5 years. If it has depreciated to a value of $1,800, how old is it? Round the answer to the nearest tenth of the year.
A. 3.7 years old B. 5.3 years old C. 2.2 years old D. 3.0 years old E. 4.1 years old