C= 615.44
c=3.14(r)^2
c=3.14(14)^2
Y=-1/4x+8
First find the slope
Slope= y-y1/x-x1
So (6-7)/(8-4) = -1/4
Now take that slope and use one of the points and plug them into the point slope formula to solve for your y intercept.
Point slope formula: y=mx+b
So 7=-1/4(4)+b OR 6=-1/4(8)+b
Either way you’ll get b=8!
Put em together and you get: y=-1/4x+8
Ps you can double check your answer by plugging in one or both of the points into your equation to see if it works :)
20 minutes is 1/3 of an hour, so an hour can be split into 3 20 minute sections.
They run 4 miles each 20 minute section equals 4 x 3 = 12 miles per hour.
135x6 equals 810 thAt is the answer
Answer: -107pi/45 radians
