A triangular pyramid has four h=b=1. What is the pyramids total surface area.

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.

Find the distance between the point (-3,-4), and (see the picture below)