John stands on the roof of a building and throw a ball upwards. The balls height above the ground is given by the formula: h= -3t + 12t + 15, where h is the height in meters and t is the seconds after the ball is thrown. Round off your answers to the nearest tenth place value. a) How high is John above the ground when he throws the ball? b) Find the height above the ground of the ball 1 second after the ball is thrown? c) How long does it take for the ball to reach the maximum height?
John stands on the roof of a building and throw a ball upwards. The balls height above the ground is given by the formula: h= -3t + 12t + 15, where h is the height in meters and t is the seconds after the ball is thrown. Round off your answers to the nearest tenth place value. a) How high is John above the ground when he throws the ball? b) Find the height above the ground of the ball 1 second after the ball is thrown? c) How long does it take for the ball to reach the maximum height?
Elementary Algebra
17th Edition
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:Lynn Marecek, MaryAnne Anthony-Smith
Chapter10: Quadratic Equations
Section10.2: Solve Quadratic Equations By Completing The Square
Problem 95E: Rafi is designing a rectangular playground to have an area of 320 square feet. He wants one side of...
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John stands on the roof of a building and throw a ball upwards. The balls height above the ground is given by the formula: h= -3t + 12t + 15, where h is the height in meters and t is the seconds after the ball is thrown. Round off your answers to the nearest tenth place value.
a) How high is John above the ground when he throws the ball?
b) Find the height above the ground of the ball 1 second after the ball is thrown?
c) How long does it take for the ball to reach the maximum height?
d) Find the maximum height above the ground reached by the ball?
e) How long does it take for the ball to hit the ground?
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