Yes just do that.................... ....m
let's use engineering notation for the sake of brevity.
1 trillion is 1,000,000,000,000, or just 1E12, twelve zeros.
1 million is then 1E6, six zeros.
we know the discharge for one day is 3E12 gallons, and that'd do just fine for country A for 5 months. How many gallons in 1 month only?
if there are 200million inhabitants in A, namely 200E6 or 2E8 inhabitants, how many gallons per inhabitant from all those 6E11 gallons?
The answer would be $856 per month since you have to add it all together. If you need more months then multiply 856 with the number of months. It is very simple if you read it with understatement.
Answer:
254.34
Step-by-step explanation:
The area of a circle = pi * r^2 where pi = 3.14 and r = radius of the circle, which is the length of any line drawn from the center of the circle to the circle’s edge.
The diameter of a circle is the distance of a line from one point on the edge of the circle to another point on the edge of the circle, passing through the center. It’s the longest line you can draw from one edge of a circle to another edge. It is equal to 2r.
So here, 2r = 18 and r = 9. Therefore, we plug the value for r into the area equation above and get:
A = pi * r^2 = 3.14*(9^2) = 3.14*81 = 254.34
