Differentiate with respect to x:
y=(4-x)^x^1/2

What are the solutions of the system? solve by graphing. y = -x^2 - 3x + 2 y = -2x + 2

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?

Astraight water slide is 175 feet above ground and is 200 feet long. what is the angle of depression to the bottom of the slide?