Is the pair of vectors 
and 
perpendicular?
?
A. no
B. yes
Answer: A
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Solve the problem.The following data represents the height (in inches) and weight (in pounds) of 9 randomly selected adults. 
Graph the data on a scatter diagram treating height as the independent variable. Find an equation of the line containing the points (62, 124) and (70, 182). Express the relationship using function notation. Graph the line on the scatter diagram. Interpret the slope of the line. Use the line to predict the weight of a person who is 63.2 inches tall. Round to the nearest pound.
Height (inches)
What will be an ideal response?
Factor by grouping.5a3 - 15a2 + 9a - 27
A. (5a2 - 3)(a + 9) B. (5a2 + 9)(a - 3) C. (5a2 + 1)(9a - 3) D. (5a + 9)(a2 - 3)
Add.
A. 85 B. 49 C. 76 D. 94
The "Dogs of the Dow" refer to the stocks listed on the Dow with the highest dividend yield. The table shows the top ten stocks of the "Dogs of the Dow" list in February, 2005. You decide to make a small portfolio consisting of a collection of seven of the top ten Dogs of the Dow. How many portfolios are possible? SymbolCompanyPriceYieldSBCSBC Communications23.625.46%GMGeneral Motors36.645.46%MRKMerck28.025.42%MOAltria63.204.62%VZVerizon35.684.32%JPMJP Morgan Chase37.003.68%CCitigroup48.383.64%PFEPfizer24.353.12%DDDuPont47.232.96%GEGeneral Electric35.752.46%??
A. ?5,040 portfolios B. ?21 portfolios C. ?24 portfolios D. ?120 portfolios E. ?56 portfolios