4. The speeds of random vehicles along a stretch of highway is recorded. {50, 74, 65, 58, 71, 65, 61, 68, 55, 72, 81, 60} Calculate the z-scores for each of the following:

The number of fish in a lake can be modeled by the exponential regression equation y=14.08 x 2.08^x where x represents the year

Consider circle c with angle acb measuring 3/4 radians.if minor arc ab measures 9 inches, what is the length of the radius of circle c? if necessary, round your answer to the nearest inch.

Solve the formula ax+ by = c for x.