Answer:
a) , , , , b) , , ,
Step-by-step explanation:
a) The equation must be rearranged into a form with one fundamental trigonometric function first:
Value of x is contained in the following sets of solutions:
,
,
b) The equation must be simplified first:
Value of x is contained in the following sets of solutions:
,
,
X(x-1)(x^2+4)=(x^2-x)(x^2+4)=(x^4)+(4x^2)-(x^3)-(4x)=(x^4)-x(x^2+4)+(4x^2)
Answer:
b) observing every person walking down Main Street at 5 p.m. one evening to determine the percentage of people who wear glasses.
d) taking a poll in the lunch room (where all students currently have to eat lunch) to determine the number of students who want to be able to leave campus during lunch.
Step-by-step explanation:
These are the two options that are most likely to give you a sample that fairly represents the population. In the first case, the sample that you obtain is likely to be a good representation because Main Street is a road where a great variety of people walk. Moreover, 5 pm is also a time that will allow you to see a great number of different people. The second answer will also give you a good sample, as the poll would include all students in the lunch room, which is all students in the school (the whole population).
Answer:
D
Step-by-step explanation:
correct
Answer:
cant help ya but if you go to math_way they help with all sorts of stuff like this
Step-by-step explanation:
sorry!