waleed1234
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How fast would a ball have to be thrown upward to reach a maximum height of 100ft? (Hint: Use the discriminant of the equation, 16T^2-voT+h=0)
I dont understand when to use a discriminant and why, what does the discriminant tell you?

Respuesta :

I hope this helps you 16t^2-vot+100=0 (4t-10)^2=0 4t-10=0 4t=10 t=5/2

A ball have to be thrown 5/2 sec fast upward to reach a maximum height of 100ft.

What is a quadratic equation?

A quadratic equation is the second-order degree algebraic expression in a variable.

The standard form of this expression is  ax² + bx + c = 0 where a. b are coefficients and x is the variable and c is a constant.

From the given expression;

16T^2-voT+h=0

To reach a maximum height of 100ft.

16t^2 - voT + 100 = 0  

(4t-10)^2 = 0

4t - 10 = 0

4t = 10

t=5/2

A ball have to be thrown 5/2 sec fast upward to reach a maximum height of 100ft.

Learn more about quadratic equations;

brainly.com/question/13197897

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