Recall that a right triangle is a triangle with one right angle. one angle of the triangle measures 89.99 degrees. can the triangle be a right triangle?

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.

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

Can you me find the missing length. i attached an image.