What is the slope of a line that passes throught the points (9,-1) and (4,-11)

Two lines parallel to a third line are parallel to each other. always sometimes or never

Find the midpoint m of z1=(8+5i) and z2=(12+3i)

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.