Question

3.5s + 5.1s simplified

Answer 1

\[v(t)=\underset{\text{Δ}t\to 0}{\text{lim}}\frac{x(t+\text{Δ}t)-x(t)}{\text{Δ}t}=\frac{dx(t)}{dt}.\]

Explanation:

Answer 2

8.6s hope this help you