The time it took to complete 12 laps.
The independent, however, would be the car's speed or something like that.
Answer:
yah why
Step-by-step explanation:
A. -1/4(x-10)^2
The screenshot shows the graph
Answer:
4π ≈ 12.5663706144
Step-by-step explanation:
The circumference of a circle is 2πr, or 2*pi*radius
Suppose the circle has a diameter of 4 inches. A diameter is 2x the radius, of which we are looking for, therefore:
4÷2=<u>2 inches</u> (radius length)
Now that we have the radius, let us <u>substitute</u> to find the circumference:
2πr=
2π2=
4π≈
<u>12.5663706144</u>
<u></u>
<em>I hope this helped! Let me know if you have any further questions :)</em>
Plug in 2 for x. f(20=2-51 = -49
