Each afternoon at leat 40 people buy coffee from a coffee shop .Write an inequality that represents this situation. Let x represent the number of people who buy coffee in an coffee in an afternoon

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?

How do you convert 1.27 to a percentage

Are triangles the congruent? write the congruency statement.what is the congruency that proves they are congruent? what is the perimeter of ∆pqr?