Mary put holiday lights on her house. she noticed each week 7 lights burned out. after 8weeks she only had 44 lights burning. write the equation to the line

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

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?

Afootball is throw by a quarterback to a receiver