5X^4+12X^3-X^2+3X+5 *

A. 4
B. 3
C. 2
D. 1

What is the slope simplify your answer and write it as a proper fraction, improper fraction, or integer

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 radius of a sphere is 3 inches. which represents the volume of the sphere?