1 Use f(x) = ½ x and ƒ˜¹(x) = 2x to solve the problems. f(2)= f¹1)=[ f(f(2)) =
1 answer:
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The time needed to run the second half of the race is 8.44 s
Step-by-step explanation:
The total distance covered by the athlete during the race is
d = 200 m
And the total time taken to cover this distance is
T = 19.19 s
We also know that the time the athlete needs to cover the first half of the race is
Also, we know that
where is the time the athlete takes to cover the second half of the race.
Re-arranging this equation and susbtituting the values, we find the value of t2:
Learn more about uniform motion:
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