74 students were chosen from a local university to participate in a study. every student attending the university had an equal possibility of being chosen. which sampling method was used?

sample

census

random selection

voluntary response

 random selection

Step-by-step explanation:

Given: 74 students were chosen from a local university to participate in a study. Every student attending the university had an equal possibility of being chosen.

Since we know that only in random selection the participants have the equal probability to get selected.

Hence, the sampling method used her is random sampling.

-3

step-by-step explanation:

a drawing really does here:

so i draw the horizontal line y=2 and the vertical line x=-2 at this intersection i put b (this is where my right angle is going to be).   so point b is at (-2,2).   point a is 5 units long and is also on y=2 so this point has to be (3,2) or (-7,2) -doesn't matter i will go with (3,2).

now we know c is at (-2,y) we don't know the y yet bet we know that c is on x=-2.

we have the area of the triangle is .5bh=12.5

we know the base length is 5 (ab)

we have the height is (2-y) if you look at your

plug in

.5(5)(2-y)=12.5

solve for y to get the y-coordinate for c

2.5(2-y)=12.5

divide both sides by 2.5 giving:

2-y=5

now subtract 2 on both sides

-y=3

y=-3

no ,sorry if you needed it but you can ask and try to see if any one will anwser ,

step-by-step explanation:

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