Barbara is converting 78°f to degrees celsius. first, she subtracts 32 from 78. what is the next step? multiply 46 by 5/9 multiply 46 by 9/5 add 273 to 46 subtract 273 from 46

Aboat radioed a distress call to a coast guard station. at the time of the call, a vector a from the station to the boat had a magnitude of 45.0 km and was directed 15.0° east of north. a vector from the station to the point where the boat was later found is = 30.0 km, 15.0° north of east. what are the components of the vector from the point where the distress call was made to point where the boat was found? in other words, what are the components of vector c = b - a?