Which products do you think required scientific knowledge to develop? Check all that apply.

_ a flashlight
_ a cell phone
_ a hair dryer
_ eyeglasses
_ a microwave
_ a household cleaner

Students design a model roller-coaster track. they place a rubber ball at the highest point on the track and let it go. the ball rolls along the track pulled only by the force of gravity. eventually, it comes to a stop. which change to the design will result in the ball moving the greatest distance?

The dot diagram represents the motion of the motorcycle as it moves from left to right

Find the dimensions and area of the largest rectangle that can be inscribed in the upper half of the ellipse. (give your answers in terms of a and b. enter the dimensions as a comma-separated list.)