Factor completely.p4 - p3 - p + 1
A. p3(p - 1) - (p - 1)
B. p4 - p3 - p + 1
C. (p - 1)2(p2 + p + 1)
D. p(p3 - 1) - (p3 - 1)
Answer: C
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Which of the following is a form of professional development?
a. Taking university-level graduate courses b. Participating in lesson study c. Attending NCTM conferences d. All of the above
The graph of a piecewise-defined function is given. Write a definition for the function. 
A. 
B. 
C. 
D. 
Find an equation of variation in which the following are true.y varies jointly as x and w and inversely as z, and y = 
when x = 2, w = 4, and z = 56.
A. y = 
B. y = 
C. y = 
D. y = 28xwz
The wages of the employees of a company are presented in this histogram. Answer the question.
How many employees earn at least $4 and less than $6 an hour?
A. 10 B. 20 C. 34 D. 22