8. What is the instantaneous velocity for f(t) = t^2+ 3t at t = 4 seconds? 5
15
21
17

Velocity is the time rate of change of distance[f(t)]

df(t)/dt = 2t + 3

At t= 4

V = 2(4) + 3

V= 11ms-¹.

Now this is only correct if i'm working with the values you gave.

me! what did you put for this question?

step-by-step explanation:

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!