Factor the difference of squares.x4 - 1
A. (x2 - 1)(x + 1)(x - 1)
B. (x2 + 1)(x + 1)(x - 1)
C. (x + 1)2(x - 1)2
D. Does not factor
Answer: B
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Answer the question.The graph below shows the approximate annual percentage growth rate in world population for the years 1960 through 2010. Data is estimated by the UN Census Bureau.Annual Growth Rate (Percentage) 
Why must the graph be interpreted with care? If the graph is not interpreted with care what misleading impression might one have of world population during the period 1960-2010? In which year during the period 1960-2010 is estimated world population the greatest? During which years did world population increase at the fastest rate?Summarize the overall trends in world population during the period 1960-2010.
What will be an ideal response?
Use a CAS to plot the function near the point x0 being approached. From your plot guess the value of the limit.
A. 7
B. 14
C. 
D. - 
Use the distributive law to multiply.(y + 2)6
A. 6y + 2 B. 2y + 12 C. 6y + 12 D. y + 12
Translate using numbers and symbols.eight times the sum of x and two
A. 8 ? x ? 2 B. 8 ? x + 2 C. 8(x + 2) D. (8 + x) ? 2