Obesity is defined as a body mass index (BMI) of 30 /kgm2 or more. A 99% confidence interval for the percentage of U. S. women aged 40 to 49 who were obese was found to be 27.0% to 28.6%. What was the sample size

the 8 in 8,420 is in the thousands place so it's value is 8 thousand.

the 8 in 6,870 is in the hundreds place so it's value is 8 hundred.

divide 8000 by 800 to find the answer:

8000 / 800 = 10

the 8 in 8,420 is 10 times greater than the 8 in 6,870

b) k’(6, 4); l’(3, 3)

step-by-step explanation:

a 270° clockwise rotation maps every point (x, y) to (y, -x). (it negates the x-coordinate and then switches it and the y-coordinate.)

this means the endpoints of the side congruent to kl, k' and l', would be mapped as:

k'(-4, 6)→(6, 4)

l'(-3, 3)→(3, 3)

look at photo

10 - 75

step-by-step explanation:

there's nothing attached so it's most likely anything in that range.