Rationalize the denominator. Assume that all variables represent positive real numbers.
A. 16
B. 
C. 
D. 7z
Answer: C
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Find the standard divisor for the given situation. Round your answer to two decimals.A university has 21 scholarships to be apportioned among the engineering students based on the enrollment in each department. There are three departments - Mechanical Engineering (M), Electrical Engineering (E), and Civil Engineering (C). The number of students in each department is given in the following table. 
A. 37.95 B. 33.86 C. 35.38 D. 32.52
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
Multiply.(x - 3)(9x2 + x + 9)
A. 9x3 - 28x2 + 6x - 27 B. 9x3 - 26x2 + 6x - 27 C. 9x3 - 26x2 + 12x - 27 D. 9x3 + 26x2 + 6x - 27
Classify the equation as a contradiction, an identity, or a conditional equation.-9s - 35 + 3(3s + 14) = 0
A. Conditional B. Identity C. Contradiction