It's the same as cot (-150 or -5pi/6) and that's a reference angle of 30 so cot 30 or pi/6 is sqrt (3) and since it's in the 3rd quadrant, it's positive.
If you started crossing the a's in the numerator and denominator, then you would be left with a x a
Hope that helped :)
Answer:
B) ∠EFG is an interior angle of ΔEFG.
C) ∠FEZ is an exterior angle of ΔEFG.
E) ∠EGF and ∠FGY are supplementary angles.
Step-by-step explanation:
EDG 2020
Answer: observational study
Step-by-step explanation:
Observational study : A study in which an observer analyse one or more characteristics of a population (depends on the objective of the study) by just observing the individuals in a sample of the population, but he / she never influence the variables of interest.
Design experiment : In this experimenter design an experiment with a series of tests to check the change in the dependent variable. Here , the experimenter influences the variables of interest.
Given : A poll is conducted in which 574 high school students are asked about how often they listened to music during the past week.
here , the poll is just observing the interest of students instead of influencing them.
Hence, the study depicts an observational study.
Answer:
It is b^6
Step-by-step explanation:
