An article reported that for a sample of 45 kitchens with gas cooking appliances monitored during a one-week period, the sample mean CO2 level (ppm) was 654.16, and the sample standard deviation was 164.21.

Suppose the investigators had made a rough guess of 180 for the value of s before collecting data. What sample size would be necessary to obtain an interval width of 48 ppm for a confidence level of 95%?

step-by-step explanation:

points a and b are equidistant from the desired line, so the line you find by using them will go through point r.

using points other than a and b will give the desired line only if they are equidistant from r. if they are randomly located, the perpendicular line you create will not necessarily go through point r, hence will not be a solution to the problem.

c(x)= 6x + 3

step-by-step explanation:

it would be 4 over -2 divided by -1 over 3.

if you want a solution it would be 4

you flip it so it would be 4/-2 divided by 3/-1 then it would be 12/3 and you would simplify it to 4

okay then that is your answer you know that 4 bottlkes of water cost ten $ at the music festival

step-by-step explanation: