Now that is the second parenthesis that I've closed. I get roughly negative 1.36. This is approximately equal to negative 1.36 if I round it. We don't care about so much as the actual value. What we really care about is its sign. The acceleration at time 5.5 is negative, which tells us that the velocity is decreasing. Now, you might be tempted to say we're done, but remember they're not asking us is the velocity of the particle increasing or decreasing.