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The quadratic model f(x) = –5x2 + 200 represents the approximate height, in meters, of a ball x seconds after being dropped. The ball is 50 meters from the ground after about how many seconds? 2.45 3.16 5.48 7.07

Respuesta :

marcthemathtutor

Answer:

t = 5.48

Step-by-step explanation:

f(x) = -5x² + 200

given f(t) = 50 when x = time(t)

Hence,

50 = -5t² + 200

5t² = 200 - 50

5t² = 150

t² = 30

t = √30 = 5.48

sunflowerssk

Answer:

t= 5.48

Step-by-step explanation:

(3rd option on e d g e n u i  t y)

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