If Y = 27, for which of the following triples (x, y, z) is the equation NOT satisfied?
2
A
(9,6, 2)
B
(9,9,3)
с
(27, 10, 10)
D
(27,5,3)

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 effect on the graph of the function f(x)=x when f(x) is replaced with -f(x)+4

Aramp rises 4 feet over a distance of 10 feet. what is the length of the ramp?