A red cross helicopter takes off from headquarters and flies 120 km at 70 degrees south of west. There it drops off some relief supplies, then flies 75 km at 60 degrees west of north to pick up three medics. If the helicoper then heads directly back to headquarters, find the distance and direction it should fly. Give your answers rounded to one decimal place.

130 km at 35.38 degrees north of east

Explanation:

Suppose the HQ is at the origin (x = 0, y = 0)

So the coordinates of the helicopter after the 1st flight is

After the 2nd flight its coordinate would be:

So in order to fly back to its HQ it must fly a distance and direction of

north of east

think its the third option

here are some information of the future of geothermal energy:

-the future of geothermal energy can pretty much be summed up with a single word: more

-scientists plan in going deeper than 120 meters

-we are hoping that one day, we will get all of our energy from renewable energy sources such as geothermal energy

hope this !