Solve the equation
Answer options : y= 576
Y= 16
Y=4
Y=2

What is the slope of a line that is perpendicular to y = 3x + 1

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 is the missing step in this proof ?