Math 2A X Zoom x Launch M X C Consider X G Suppose X C Suppose X A Math 2A X Mathway X Homewo X + X C https://www.webassign.net/web/Student/Assignment-Responses/submit?dep=28812745&tags=autos... a . . . 4. [-/12 Points] DETAILS SCALCET9 2.7.014. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER The displacement (in feet) of a particle moving in a straight line is given by s = _t2 - 7t + 16, where t is measured in seconds. (a) Find the average velocity (in ft/s) over each time interval (i) [4, 8] ft /s (ii) [6, 8] ft/s (iii) [8, 10] ft /s (iv) [8, 12] ft/s (b) Find the instantaneous velocity (in ft/s) when t = 8. ft/s (c) Draw the graph of s as a function of t and draw the secant lines whose slopes are the average velocities in part (a). Then select the graph of s with the tangent line whose slope is the instantaneous velocity in part (b). 10 10 15 15 10 10 10 15 10 15 -5 -10 10 LO 15 -10 -51 -15 -15 -10 -10 -20 -20 10-15 Need Help? Read It Submit Answer 5. [2/2 Points] DETAILS PREVIOUS ANSWERS SCALCET9 2.7.019. alt1 = - 4 1 sin ( 2#t ) MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER L D e a ( t = 4.5 ) = - 47 sin ( 210 . 4.5 ) = - 47 sin ( 9 7 ) = 0 Type here to search O Ei 53OF 5:25 PM ENG 1/24/2022