These are for my Calc 1 class. I just had a question on these 3 questions

0 Question 8 E 0/1 pt '0 3 8 99 G) Details Suppose that an object is moving along a vertical line. Its vertical position is given by the equation L(t) = 3t2 + 2t + 11, where distance is measured in meters and time in seconds. Find the approximate value of the average velocity (accurate up to three or more decimal places) in the given time intervals. between 131 = 4sand t2 = 11 s: m = C] : Question Help: 8 Message instructor Submit Question 0 Question 9 B 011 pt '0 3 2:3 99 (D Details If a ball is thrown straight up into the air with an initial velocity of 60 ft/s, it height in feet after t second is given by y = 60t 16t2. Find the average velocity for the time period begining when t = 1 and lasting (i) 0.1 seconds ' ' (ii) 0.01 seconds' ' (iii) 0.001 seconds ' ' Finally, based on your results, what do you think is the the instantaneous velocity of the ball when t = 1? Enter your answers with all the decimal madness! Don't round or truncate your results. Question Help: 8 Message instructor Submit Question Question 10 0/1 pt 9 3 99 0 Details Given f(a) = a + 3x, find an expression that gives the slope of the line from ( - 2, f( - 2)) to ( - 2 + h, f( - 2 + h)). Your answer will be an expression involving h. Question Help: Video Message instructor Submit