Graph the parabola.y = x2 + 2x - 5
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.The carpenter needed a board that was 3.5 m long. How many inches will be needed?
A. 126.0 in. B. 3.8 in. C. 8.9 in. D. 137.8 in.
State the domain of the composition.(f?g)(x) with f(x) = 
and g(x) = 5x + 6
A. Domain = 
B. Domain = (0, ?)
C. Domain = (-?, ?)
D. Domain = (6, ?)
Solve the problem.The Lorenz curve for the income distribution in a certain country is given by 
I) Find the Gini index of income concentration.II) Use the answer found in I) to determine if the income of this country is more equally distributed, less equally distributed, or distributed the same as a second country having an index of income concentration of 0.2.
A.
| I) | 0.33 |
| II) | less equally distributed |
B.
| I) | 0.33 |
| II) | more equally distributed |
C.
| I) | 0.25 |
| II) | more equally distributed |
D.
| I) | 0.25 |
| II) | less equally distributed |
Solve the problems.By switching service providers, a family's telephone bill decreased from about $50 a month to about $45. What was the percent of decrease?
A. 5% B. 11% C. 11.1% D. 10%