The following question was part of a questionnaire: "Is your favourite drink:

Hot Chocolate
Tea
Cola
Lemonade
Fresh Orange Juice ?"

a) Describe one problem that exists with the question.

b) Design one question to replace this question, that would provide better information:

Sample response: if the graph passes the horizontaline test, then the function is one to one. functions that are one to one have inverses that a therefore, the inverse is a hinction compare your response to the sample response above. what did you include in your explanation? a reference to the horizontal-line test d a statement that the function is one-to-one the conclusion that the inverse is a function done

Which expression demonstrates the use of the commutative property of addition in the first step of simplifying the expression (-1+i)+(21+5i)+0

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?