Write the series with summation notation.-8 + 9 - 10 + 11 - 12 + 13
A. 
B. 
C. 
D. 
Answer: D
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Solve the problem.What is the size relationship between the mean and the median of a data set?
A. The mean can be smaller than, equal to, or larger than the median. B. The mean is always equal to the median. C. The mean is always less than the median. D. The mean is always more than the median. E. none of these
Sketch the graph of the quadratic function. Identify the vertex and the axis of symmetry.f(x) = x2 + 3x + 2
A. vertex: 
axis of symmetry: x = 
B. vertex: 
axis of symmetry: x = - 
C. vertex: 
axis of symmetry: x = - 
D. vertex: 
axis of symmetry: x = 
Use the order of operations agreement to simplify the given expression.
2 + 
A. 
B. 
C. 
D. 
Simplify the expression. First use the distributive property to remove any parentheses.9x + 2(x + 9)
A. 11x + 18 B. 18x + 11 C. 11x - 18 D. 10x + 18