2 power of 3 x (8 + 4 - 10)

(PEMDAS)

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?

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane

Sketch one cycle if the cosine function y=2cos2theta