> Chapter 5: 5.1-5.3 Quiz > Quiz 5 8 Write and as fractions in simplest form. Then determine whether the ratios form a proportion. 60 8 20 O The ratios form a proportion. O The ratios do not form a proportion. 4

If kn = 9 cm, mn = 21 cm, rs = 42 cm, and ps = 18 cm, what is the scale factor of figure klmn to figure pqrs?

What is the quadric regression equation that fits these data

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.