Rate is closer to a constant pattern , example: I'm walking at a rate of 2 miles an hour.
Ratio is related to the proportion of two or more objects, example: The ratio for a perfect tang juice is 1 packet of tang dust thingy for 1.5 liters of water.
Hope it helps :)
For every hour they studied their grade will go up by 9.6 points
Answer:
it is a
Step-by-step explanation: it took that already
Step-by-step explanation:
x=3(3-1)
x=9-3
x=6
Hope it will help you...........
Answer:

Step-by-step explanation:
Data given

r = 6 in
Solution to the problem
We know that the area for a circle is given by:

We want to find at what rate is the area of the plate increasing at the instant when the radius is 6 inches. So we need to take partial derivates in both sides of the equation for the area, and if we do this we got:

Since we have all the values provided we just need to replace and we got:
