Simplify.
A. 
B. 12
C. 
D. 1
Answer: A
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In a certain city there is a river running through the middle of the city. There are three islands and seven bridges as shown in the figure below.
Which of the following statements is true?
A. The graph that models this situation has an Euler circuit. B. The graph that models this situation has an Euler path starting on the South Bank and ending on the North Bank. C. No edge in the graph that models this situation is actually a bridge. D. All of these are true. E. None of these are true.
Decide whether or not the functions are inverses of each other.f(x) = - 
x, g(x) = - 
x
A. No B. Yes
Write the number in scientific notation.5,600,000
A. 5.6 × 10-7 B. 5.6 × 10-6 C. 5.6 × 107 D. 5.6 × 106
Write the number in words.3,072
A. Three million, seventy-two B. Thirty thousand, seventy-two C. Three hundred thousand, seventy-two D. Three thousand, seventy-two