0.5477225575 ... u have to change this in scientific notation
It's not much but to find the mean you add up all of the numbers in the set, and then divide by how many numbers there are. so like, if you have : 2, 2, and 3. You'd add them and get 7, then divide by 3 because there are three separate numbers.
I would use a proportion:
336 miles/7 hours = x miles/15 hours (cross multiply)
x= 720 miles
9514 1404 393
Answer:
(b) 1
Step-by-step explanation:
Three points not on the same line uniquely define one plane.