What is the value of f(−1) when f(x)=2x+2 ? enter your answer in the box. f(−1)=

225/100 of last years cost. write each fraction as a decimal and as a percent

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?

Evaluate cos2θ for cosθ = square root of 3/2