What is the fraction form of the following decimal expansion? 0.1253

What is the solution to the equation 9^(x+1) =27

Determine the volume of a cylinder bucket if the diameter is 8.5 in. and the height is 11.5 in.

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?