A sociologist wants to know the opinions of students about online education. He obtains a list of 825 students who have completed an online course recently and mails a questionnaire to a randomly selected group of 150 of these students. Only 67 of the questionnaires are returned. Identify the population and the sample in this study. (4 points) a
The population is 825 and the sample is 67.

b
The population is 150 and the sample is 67.

c
The population is 825 and the sample is 150.

d
The population is 67 and the sample is 825.

e
The population is 150 and the sample is 825.

(0,-3) see attached graph

step-by-step explanation:

a. to solve the system, graph the two equations.

x = y+3 becomes y=x-3 has m=1/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move up 1 unit and 1 unit to the right. plot a point and connect.

y=-4x+3 has m =-4/1 and b=-3. start at (0,-3) on the y-axis and plot a point. then move down four units and to the right 1 unit. plot a point and connect.

the solution is the point (x,y) where the two lines intersect. by the graph below it is (0,-3).

b. to solve by substitution, substitute y = -4x-3 into x= y+3

x= (-4x-3) +3

x=-4x

5x=0

x=0

now substitute x = 0 back in to find y.

y= -4(0)-3

y=0-3

y=-3

solution is (0,-3)

c. use elimination by adding the equations together.

x-y=3

4x+y=-3

5x=0

x=0

then substitute into one equation to find y.

y=-4(0)-3

y=-3

560

hope this : )

answer: 193

explanation:

200-7 = 193

the rocket cannot penetrate the ground, in a contextual sense, therefore the roots of this equation should be the domain of this function. i'll let you find the roots of this quadratic equation (hint: use the quadratic formula:  

1- c

2-a

step-by-step explanation:

mark brainliest!