Answer:
-4 would be the answer i think!
Step-by-step explanation:
Answer:
m=-7/9
Step-by-step explanation:
Answer:
The answer would be C
Step-by-step explanation:
He started at 250 lbs. He is losing 3 lbs every week.
So it would be y=250(beginning weight)-3x(how much he's losing every week)
Hope this helped :)
Answer:
B. 95% confident the average concentration of PCBs in the water supply is between 2.9 ppb and 3.5 ppb
Step-by-step explanation:
You are given the total number of samples, the concentration of lead, and the standard deviation. The standard deviation represents how inaccurate the estimation of the concentration of lead in the drinking water. This means that there can only possibly be a 0.3 ppb error in the estimation. 3.2-0.3=2.9, and 3.2+0.3=3.5
