The equation for women’s shoe sizes is y = 3x − 21, where x is the length of the foot in inches. what shoe size should you recommend to a woman whose foot is 8.5 inches long?

Find the solution of system of equation y= x-4 y=4x+2

Successful implementation of a new system is based on three independent modules. module 1 works properly with probability 0.96. for modules 2 and 3, these probabilities equal 0.95 and 0.90. compute the probability that at least one of these three modules fails to work properly.

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.