Which choice is equivalent to the expression below?
2√2 + √18 + √8
a.7√2
b.8√2
c.6√2
d.4√2

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 inequality has a dashed boundary line when graphed ?

Y=(x+3)(x-4)(x+1)^2 sulutions? multiplicity?