The circle below is centered at the point (3, 1) and has a radits of length 2. What is its equation?

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?

Find dy/dx using implicit differentiation ln(20+e^xy)=y

Which of the symbols correctly relates the two numbers below check all that apply 6? 6