Answer:
$9
Step-by-step explanation:
7.50/5= $1.5 an apple
6* 1.5 = $9 for 6 apples
Answer:
7212960
Step-by-step explanation:
You have to round up since the number in the ones place is a 5.
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
This polynomial has only 3 terms, so it is a trinomial. <em>Hope it helps!</em>
