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What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

Write a polynomial function with the given zeros x= -1,0,2show your work

During a medieval siege of a castle, the attacking army uses a trebuchet to hurl heavy stones at the castle walls. if the trebuchet launches the stones with a velocity of at an angle of 50.0°, (a) how long does it take the stone to hit the ground? (b) what is the maximum distance that the trebuchet can be from the castle wall to be in range? (c) how high will the stones go? show all your work.