Discuss the process of proving a statement by mathematical induction. What is the importance of verifying the first possible case?

Which is the completely factored from of xy^3-x^3y

Sara can take no more than 22 pounds of luggage on a trip.her suitcase weighs 112 ounces.how many more pounds can she pack without going over the limit?

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.