To determine her heart rate , miranda divides up her day into three parts: morning, afternoon, and evening. she then measures her heart rate at 2 randomly selected times during each part of the day. what type of sampling?

The answer is stratified sampling.

Step-by-step explanation:

Miranda divides up her day into three parts: morning, afternoon, and evening.

She then measures her heart rate at 2 randomly selected times during each part of the day.

This sampling method is Stratified sampling.

This is because Miranda created separate groups and took samples from each group.

Stratified sampling is defined as dividing the population into separate groups or strata and then drawing a sample from each group.

answer: i can’t tell you that

step-by-step explanation:

-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