10TH•Mathematics•Quadratic Equations•Exercise 2.7

2.7 Applications of Quadratic Equation in Real World

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quizQuestion 1 of 2(Total 2 Questions in Exercise)

A ball's height (in metres) after $t$ seconds is $h(t) = -4t^{2} + 24t$ . For what time interval is the ball at least 20 m above the ground?

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Question 4

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Detailed steps for this part are synchronizing. Refer to the question theory or main exercise text.

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