Find the domain and the range of the functions or relations from the graph.
A. domain: (-?, ?); range: (0, ?)
B. domain: (-?, 0); range: (-?, 0)
C. domain: (-?, ?); range: (-?, ?)
D. domain: (0, ?); range: (0, ?)
Answer: C
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Solve. Write the answer as a mixed number in simplest form.A pair of boards needs adjustment. One board is 56 inches and the other is 54
inches. Find how much the longer board should be shortened to make both boards the same length.
A. 110
in.
B. 
in.
C. 2
in.
D. 1
in.
Which of the following mathematical equations is used to calculate the degree of operating leverage (DOL)? (? = change)
A. DOL = % ? in net operating income (NOI)/% ? in sales B. DOL = % ? in sales/% ? in earnings before taxes (EBT) C. DOL = % ? in earnings before interest and taxes (EBIT)/% ? in earnings per share (EPS) D. DOL = % ? in sales/% ? in earnings per share (EPS) E. DOL = % ? in earnings per share (EPS)/% ? in earnings before taxes (EBT)
Complete the square for the binomial. Then factor the resulting perfect square trinomial.x2 + 
x
A. x2 + 
x + 
= 
2
B. x2 + 
x + 
= 
2
C. x2 + 
x + 
= 
2
D. x2 + 
x + 
= 
2
Write the equation of the exponential function that represents the data in the table.
A. y = 0.2(x)8 B. y = 0.2(8)x C. y = 8(0.2)x D. y = 8(x)0.2