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Objective: Solve quadratic equations. Warm up Don’t copy problem
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Objective: Solve quadratic equations. Warm up Don’t copy problem 1. An object is launched at 19.6 meters per second (m/s) from a 58.8-meter tall platform. The equation for the object's height s at time t seconds after launch is s, where s is in meters. When does the object strike the ground?
3. Don’t copy problem A motorboat makes a round trip on a river 56 miles upstream and 56 miles downstream, maintaining the constant speed 15 miles per hour relative to the water. The entire trip up and back takes 7.5 hours. What is the speed of the current?