A simpler form of this expression would be 19y-9
Answer:
The one that is on the bottom half and on the right side.
Step-by-step explanation:
(0,30) to (10,0)
Because the x value 0 represents the time in which the paint job started and ends in the value 10
While the y value 30 is the amount of paint he started with and ends with 0
Answer:
perimeter = 40 feet
Step-by-step explanation:
side^2 = 100
side = 10
perimeter = 10 x 4 =40
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
