Answer:
1 is biased, 2 isn't, 3 is biased, 4 isnt
Step-by-step explanation:
If you ask a question to people in a group who are already clearly for a certain topic then it is biased. For survey to not be biased, the people need to be chosen at random. Ask students what their favorite class is, or ask flight attendants where their favorite destination to travel to is. Dont use a group who has any relation to the survey at hand. Asking band students about funding for band is biased, as well as asking people who are at a SOCCER GAME what their favorite sport is.
Answer: Angle OZP= 62 Angle PZQ=63
(4r+2)+(5r-12)=125
9r-10=125
9r=135
r=15
Angle OZP Angle PZQ
4(15)+2 5(15)-12
62 63
Polynomial:
an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable or variables
-Hope this helped!!~~ <3
