A 1200 W oven is turned on for 30 minutes. If the oven is plugged into the mains supply in the UK, how much charge does the oven use?

see the picture for the vector

the magnitude of the vector by pythagorean theorem

r = √( (-10)^2 + (3)^2 ) = √109

magnitude = √109 units

the direction angle between vector and x-axis is

tan^(-1)(3/10) = 16.699

so the direction is approximately 16.7 degrees north of west

it's a b and