Which inequality explains why these three segments cannot be used to construct a triangle? EF + FD > DE
ED + EF < DF
ED + EF > DF
EF + FD < DE

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. how many hours after the truck's departure will the two meet?

Solve 17= -13 - 8x and show your work.