Simplify.
A. 20
B. -1
C. 
D. 
Answer: C
Mathematics
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What kind of presentation is most appropriate for displaying the type of information below?The percentage of Biology majors each year since 1970.
A. table, bar graph, histogram, pie chart B. table C. bar graph D. bar graph, line graph E. table, bar graph, histogram
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The bar graph below shows the recorded high temperatures in Little City for the indicated months. 
In which month was the recorded temperature the highest?
A. February B. October C. January D. March
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Factor the expression completely, if possible.144 - x2y4
A. (12 + xy2)(12 - xy2) B. (12 + xy)(12 - xy) C. (12 - y)2 D. (12 + x2y2)(12 - x2y2)
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At what 
-value does the curve defined by 
have a horizontal tangent?
?
A. 
B. 
C. 
D. 
E. 
Mathematics