Determine if triangle def with coordinates d(2, 1), e(3, 5), and f(6, 2) is an equilateral triangle. use evidence to support your claim. (10 points)

The coverage of a base station of a telecommunication company forms a disk with a radius of (kilometers). let be the distance of a cellphone from a base station. assume that the location of cellphones in use are randomly uniformly distributed within the disk. calculate the mean and variance for the random variable.

For which scatterplot is the correlation strongest?

What is the measure of minor arc dm?