Suppose that f(t) is continuous and twice-differentiable for t≥0. further suppose f″(t)≥9 for all t≥0 and f(0)=f′(0)=0. using the racetrack principle, what linear function g(t) can we prove is less than or equal to f′(t) (for t≥0)?

15

step-by-step explanation:

2 over 5

step-by-step explanation:

the 2: 3 ratio is the length of the ac segment to the cb segment total length. this implies that the ratio between segment ac length and segment ab length is 2: 5. point c is 2/5 from a to b, so the required fraction is 2/5.