Aljeiv fired an object from the ground level vertically upward at a rate of 30 m/s. The height y reached by the object after x seconds is denoted by y = 30x - x2. What values of x is the object at or above a height of 200?
please help ang hirap
labas MATH GENIUS jan
brainliest yung may tamang sagot
please help ang hirap
labas MATH GENIUS jan
brainliest yung may tamang sagot
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Answer:
10≤x≤20
Step-by-step explanation:
if height 200
200=30x-x²
x²-30x+200=0
x -10
x -20
(x-10)(x-20)=0
x=10 x=2p
10≤x≤20