Which of the following graph(s) is not a function of y? a function generally takes the form f(x) = y. a y = 3 b 4x+7=y c y=x d x=|y|

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?

Find and simplify an expression for the area of five rows of x squares with side lengths of x centimeters.

Find the perimeter of the figure shown above. a. 40 cm c. 52 cm b. 60 cm d. 75 cm select the best answer from the choices provided