Answer:
10 ft/s
Step-by-step explanation:
If Kristina is running at a rate of 11 ft/s and on a circular track with radius of 44 ft, then her angular speed is:

And so is Darrin's angular speed. That means his rate is

Answer:
None
Step-by-step explanation:
The solution to a system of equations given graphically is at the point of intersection of the 2 lines.
In this case the lines are parallel and never intersect.
Thus the system has no solution.
Answer:
Square root of 269 or 16.4
Step-by-step explanation:
Use the distance formula
20 inches longest for day