Which one of the following is the optimal way to take a sample for a study on the calorie content of sandwiches at all fast food restaurants?
randomly select a chicken sandwich and a beef burger from one of the restaurants as the sample
o create two categories, one of sandwiches and one of another menu option at all fast food restaurants, and take a random sample
from all the fast food restaurants
create two categories, one with chicken sandwiches and one with beef burgers and take a random sample from all the fast food
restaurants
categorize all the fast food restaurants into one group and take a random sample of all sandwiches

2 over 5

step-by-step explanation:

the 2: 3 ratio is the length of the ac segment to the cb segment total length. this implies that the ratio between segment ac length and segment ab length is 2: 5. point c is 2/5 from a to b, so the required fraction is 2/5.

; )

step-by-step explanation: ; )

the smallest possible measurement of the width is 14 feet

step-by-step explanation:

let's assume length of parallelogram is 'l'

width of parallelogram is 'w'

the perimeter of a parallelogram must be no less than 40 feet

so, we get

we are given

length of parallelogram is 6 feet

so,

l=6

we can plug it

now, we can solve for w

subtract both sides by 12

divide both sides by 2

and we get

so,

the smallest possible measurement of the width is 14 feet