Area of circle = pi x radius squared where pi = 3.1416 radius = diameter/2 = <span>4/2 = 2 ins Area = 3.1416 x 2 x 2 sq.ins. = 12.5664 sq in.</span>
Rotational, horizontal, and vertical.
Slope = (-14-1)/(7-1) = -15/6
y = mx + c
y = -15/6 x + c
at (1,1)
1 =-15/6(1) + c
c = 1 + 15/6 = 21/6
y = -15/6 x + 21/6 or
6y = -15x + 21
The rate of change between 1990 and 1999 is 15.22
Step-by-step explanation:
The rate of change in this case is given by change in quantity divided by change in time
So,
![Rate\ of\ change = \frac{Increase\ in\ money}{Increase\ in\ time}\\=\frac{549-412}{1999-1990}\\=\frac{137}{9}\\=15.22](https://tex.z-dn.net/?f=Rate%5C%20of%5C%20change%20%3D%20%5Cfrac%7BIncrease%5C%20in%5C%20money%7D%7BIncrease%5C%20in%5C%20time%7D%5C%5C%3D%5Cfrac%7B549-412%7D%7B1999-1990%7D%5C%5C%3D%5Cfrac%7B137%7D%7B9%7D%5C%5C%3D15.22)
Hence,
The rate of change between 1990 and 1999 is 15.22
Keywords: Rate of change, median
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Speed is distance divided by time. First you have to find the total distance, so you would do (50*3)+(65*.5)+70(1). After you get that answer, you divide it by the time which would be 3 hours+.5 hours+1 hours. Just remember s=d/t.