Let f(x)=4x-1 and g(x)=x2+1
find (f•g)(7)

Can (3,5 and square root 34) be sides on a right triangle?

What is the remainder when 2872 is divided by 76? a) 51 b) 57 c) 60 d) 63

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?