:sergio wants to fence in a circular portion of his backyard for a play space for his dog. determine the area of the largest portion of the yard he can enclose with 72 feet of fencing. use 3.14 for π.

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?

What is the base of 1/9 to the power of 2

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.