Anna wants to buy grass seed to cover her whole lawn, except for the pool. The pool is 7 1 2 m by 3 1 4 m. Find the area the grass seed needs to cover.

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?

In the triangles, bc =de and ac fe. if the mzc is greater than the mze, then ab isdfelth

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?