197/pi(3.1416)=62.70(diameter)
Radius=62.70/2
R=31.35
Area=3.1416x(31.35)^2
Area=3087.63
A) x -y = 4
B) x + y = 30
x = 4 + y So,
B) 4 + y + y =30
2 y = 26
y = 13
x = 17
Answer:
Domain = [-9, 1]
Range = [-1, 4]
Step-by-step explanation:
The horizontal extent of the graph is from - 9 to 1. Therefore,
Domain = [-9, 1]
The vertical extent of the graph is from - 1 to 4. Therefore,
Range = [-1, 4]
Circumference = 2πr
So the circumference of the track is C = 2π .2 or .4π
3 times around the track is .4π x 3 or 1.2π - this is the answer but most teachers will want you to use 3.14 for pi.
so 1.2 x 3.14 = 3.768 km
Do you notice that I waited until the end to use the actual value of pi (3.14) in my calculations.
Keeping things in pi units until the very end saves time.
Answer:
y = -3x + 3
Step-by-step explanation:
use the formula y - y1 = m ( x - x1)
y - 3 = -3 ( x - 0)
y - 3= -3x
y = -3x + 3
