Vector Operations - Page 41

Questions
  • How do you find a=-b+4c given b=<6,3> and c=<-4,8>?
  • A boat's crew rowed 20 kilometers​ downstream, with the​ current, in 22 hours. The return trip​ upstream, against the​ current, covered the same​ distance​ but took 55 hours. Find the​ crew's rowing rate in still water and the rate of the current?
  • How do you find a=0.4b-1.2c given b=<6,3> and c=<-4,8>?