Which equation below represents the parabola y=x^2 -10x+28 written in vertex form?

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?

The reflexive property of congruence lets you say that ∠pqr ≅

Adam used 1072.4 gallons of water over the course of 7 days. how much water did adam use, on average, each day?