B 6.44 because 6.4 is equal to 6.40 and in between 6.40 and 6.60 there is 6.44.
Since

Is a perfect square, we can think of the "-6" at the end as a "+4-10" and we have

Which is the required form
Step-by-step explanation:
cho f(t)=(t-4)u(t-2)phep bien doi laplace la
F(s)=e^-2s/s^2-2e^-2s/s62
Answer:
t = 8
Step-by-step explanation: