The speed of a river boat is 40km/h and the rate flow of the river is 8km/h. Moving along the same direction as the flow of the river , the boat traveled 240km. Calculate the distance the boat could travel going against the stream in the same time period.

Find the equation for the plane through upper p 0 left parenthesis negative 4 comma negative 8 comma negative 5 right parenthesis perpendicular to the following line. xequalsnegative 4 minus t, yequalsnegative 8 plus 2 t, zequals3 t, minusinfinityless thantless thaninfinity