During the 2019 Cricket World Cup the South African Captin Faf du Plessis hit a ball with all his might. After the ball left his bat, the height of the ball in metres wa expressed by the equation h(x)=-x^2+4x after x seconds. calculate the maximum height of the ball?
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Vamos là.
h(x) = -x² + 4x
a = -1
b = 4
c = 0
delta
d = 16
vértice
Vx = -b/2a = -4/-2 = 2
Vy = -d/4a = -16/-4 = 4
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