Use the figure below to answer the following question(s).
Which of the graphs has an Euler circuit?
A. Graph 3 only
B. Graphs 1 and 3
C. Graph 1 only
D. Graph 2 only
E. none of these
Answer: A
Mathematics
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Determine whether the function is a solution of the wave equation.w(x, t) = sin (5x + 5ct)
A. No B. Yes
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Add or subtract.1
+ 20
A. 22
B. 1
C. 20
D. 21
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Explain how to obtain the graph of the given quadratic function from the graph of 
f(x) = (x - 7)2
A. Take the graph of y = x2 and shift it 7 units up. B. Take the graph of y = x2 and shift it 7 units to the right. C. Take the graph of y = x2 and shift it 7 units down. D. Take the graph of y = x2 and shift it 7 units to the left.
Mathematics
Simplify by combining like terms.5x2 + 3xy - 9x2 + 14 + 2xy
A. -4x2 - 5xy + 14 B. 5x2 + 5xy - 14 C. 5x2 + 5xy + 14 D. -4x2 + 5xy + 14
Mathematics