Simplify the complex rational expression.
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.A graph has 37 vertices and has the property that there is one and only one path joining any two vertices of the graph. Which of the statements [A), B), C), or D)] is not true?
A. G must have 36 edges. B. G must be connected. C. G cannot have any circuits. D. Every edge of the graph must be a bridge. E. all of these statements are true.
Multiply or divide as indicated.
A. 0.01 B. 1 C. 0.001 D. 0.1
Answer the question or write an explanation.What is the common name given to a horizontal line whose y-intercept is the origin?
Fill in the blank(s) with the appropriate word(s).
Solve the problem.A stone is thrown into a pond. A circular ripple is spreading over the pond in such a way that the radius is increasing at the rate of 4.3 feet per second. Find a function, r(t), for the radius in terms of t. Find a function, A(r), for the area of the ripple in terms of r. 
A. (A ? r)(t) = 18.49?2t B. (A ? r)(t) = 8.6?t2 C. (A ? r)(t) = 18.49?t2 D. (A ? r)(t) = 4.3?t2