The width of a rectangle measures (10h-4)(10h−4) centimeters, and its length measures (9h-8)(9h−8) centimeters. Which expression represents the perimeter, in centimeters, of the rectangle?

Point a is at 12, and point d is at 56. point c is midway between a and d, and point b is midway between a and c. which of these is the coordinate of b?

Factor the following expression completely 6x^11-24x^7

Suppose medical records indicate that the length of newborn babies (in inches) is normally distributed with a mean of 20 and a standard deviation of 2.6. find the probability that a given infant is between 14.8 and 25.2 inches long.