Find the slope of
(-4,6) and (5,6)

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?

What expression is equivalent to 42x-56y

Ihave trouble finding the nth term of a linear sequence