Set up your conversion using dimensional analysis. That's just a fancy way of saying set up your values so you cancel what you don't need and keep what you do. If we want to convert miles per hour to feet per second, we need to convert the miles to feet using the fact that there are 5280 feet in 1 mile, and then convert the hours to seconds using the fact that there are 3600 seconds in an hour. Your set up will look like this (it's all about setting up the fractions correctly):
. If you look at that closely, you can see the there is a label of miles on the top in the first fraction and on the bottom in the second fraction. Those cancel each other out by reducing. Then in the bottom of the first fraction there is hours and in the top of the last fraction there is hours. Those cancel out. From top to bottom or bottom to top you can cancel like labels. This leaves us with feet in the top and seconds in the bottom. Now it's a matter of doing the math. You multiply straight across the top and straight across the bottom.
. Simplifying you get 46.933 feet per second.
Answer:
The correct quotient is 3.
I think Derek has mistaken to divide
by
.
Step-by-step explanation:
We have to check the quotient of
.
Part A:
Now,
.
=
So, the correct quotient is 3.
Part B:
Derek says that the quotient is
.
So, I think Derek has mistaken to divide
by
. (Answer)
Answer:
48 length units
Step-by-step explanation:
area of each squre = 9
side length of each square = sqrt(9) = 3
Length of each side of grid = 4*3 = 12
Perimeter of grid = 4 sides = 4*12 = 48 length units
Answer:
4.9 units
Step-by-step explanation:
Distance between 2 points= sqrt [(x-x)^2 + (y-y)^2
A= -4,2) and B= (1,4)
d = sqrt[(-4-1)^2 + (2-4)^2]
= sqrt (25+4)
= sqrt29
= 4.9 units
Answer:
42
Step-by-step explanation:
83+q=125
q=125-83
q=42