27. [0/3 Points] DETAILS PREVIOUS ANSWERS LARHSCALC2 2.AP.015. MY NOTES ASK YOUR TEACHER P Do not use technology. Consider the following table. X f(x) f' (x) g (x) g'(x ) 2 - 3 2 5 -2 5 4 8 -9 8 (a) If h(x) = f ( x ) find h'(2). g (x ) h' ( 2 ) = X (b) If j(x) = f(g(x) ), find j'(2). j'(2) = X ( c) If K( X ) . =.. . ( ( x ) , find k' (5). K'(5) = X Enter a fraction, integer, or exact decimal. Do not approximate. Need Help? Read It Submit AnswerG 28. [-/5 Points] B DETAILS LARHSCALC2 2.AP.016. G V V W Practice. MY NOTES Do not use technology. ASK YOUR TEACHER PRAC The figure below shows the graph of the velocity, in feet per second, for a particle moving along the line x = 4. V(1) (a) During which time interval(s) is the particle doing the following? Enter your answer using interval notation. (i) moving upward (0,1) U (ii) moving downward (iii) at rest (1,2) (b) What is the acceleration of the particle at the following times? (1) t = 0.23 it/$ 2 (ii) t = 4.8 ft / $ 2lewing Saved Work Revert to Last Response 29. [3/4 Points] DETAILS PREVIOUS ANSWERS LARHSCALC2 2.AP.017. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER Do not use technology. Given: g(x) = f(x) . tan(x) + kx, where k is a real number. f is differentiable for all x; f(3x/4) = 4; f'(3x/4) = -9. (a) For what values of x, if any, in the interval 0