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Select all true statements .

A. Trig functions will never be alone and will always has an angle measure associated with it .
B. Trig functions can be written alone as long as there a ratio of two sides associated with it.
C. The only proper way to write (trig function ) equal to the ratio of two sides)
D. The only proper way to write ( function) of an ( angle) is equal to the (of two sides) E. correctly written cos x = 3/4
F. correctly written: sin=3/4

Which of the following correctly justifies statement four of the two column proof? a. corresponding angles theorem b. transitive property of equality c. vertical angle theorem d. substitution property of equality

Aprofessional hockey team has noticed that, over the past several seasons, as the number of wins increases, the total number of hot dogs sold at the concession stands increases. the hockey team concludes that winning makes people crave hot dogs. what is wrong with the hockey team's conclusion? a) it does not take into account the attendance during each season. b) it does not take into account the number of hamburgers sold during each season. c) it does not take into account the number of concession stands in the hockey arena. d) it does not take into account the number of seasons the hockey team has been in existence.

Factor the polynomial expression x6 – x3 – 20