Zhang Lei creates and sells wreaths. On her website, she gives the diameter, in inches, and weight, in pounds, of

each wreath. An approximate least-squares regression line was used to predict the weight from a given

diameter.

Weight (pounds)

16

20

24

28

32

36

40

Diameter of wreath (inches)

Interpret the residual for the wreath indicated in the scatterplot above.

ruth is 6 years old

step-by-step explanation:

6 + 24 = 30,   so 6/30 = .2  

if you do 1/5 it also equals .2, so that is the answer.

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus