The vector a, b and c are given as a=2i+3j-4k. b =5i+3j+7k. c =6i+2j-k find 1)a-2b+4c
2)5a+2b-c​

Ined this is due tomorrow and i dont know the answer can you find all the exponents

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.

What does y equal in y divided by -1 = -2?