Let f(x) = x^2 + 3x - 4 what is the average rate of change for the quadtruc function form z= -3 to x =8?

What is the first quartile of the data set? 10, 11, 12, 15, 17, 19, 22, 24, 29, 33, 38 a. 12 b. 19 c. 29 d. 10

Rockwell hardness of pins of a certain type is known to have a mean value of 50 and a standard deviation of 1.1. (round your answers to four decimal places.) (a) if the distribution is normal, what is the probability that the sample mean hardness for a random sample of 8 pins is at least 51?

The measures of the legs of a right triangle are 15m and 20m . what is the length of the hypotenuse