The equation d= 4.9t^2 represents the distance (d) an object falls in time. In the equation, d is in meters, and t is in seconds. If an object falls a total distance of 1.2 meters, approximately how long did it fall?

Liesl grew 7/12 of a foot in one year. her little sister grew 1/3 of a foot during that same year. how much more did liesl grow than her little sister did

Aman steps out of a plane at a height of 4,000m above the ground falls 2,000m very quickly and then opens his parachute and slowly falls the remaining 2000m to the ground what height above the ground would be the best choice for a reference point

In the diagram, ab is tangent to c, ab = 4 inches, and ad = 2 inches. find the radius of the circle.