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1. [0/1 Points] DETAILS PREVIOUS ANSWER Find dy/dx. x = 12, y =9 - 8t dy = dx 2y X Need Help? Watch It 2. [0/1 Points] DETAILS PREVIOUS ANSWERS Find dy/ dx. -1 X 3. [-/1 Points] DETAILS LARCALC10 10.3.027. onconta and vertical tangencyLARCALC10 10.3.027. DETAILS . [-/1 Points] Find all points (if any) of horizontal and vertical tangency to the portion of the curve shown. (Enter your answers as a comma separated list.) Involute of a circle: X = cos 0 + 0 sin @ y = sin 8 - 0 cos e vertical tangents horizontal tangents Need Help? Watch It 4. [-/1 Points] DETAILS LARCALC10 10.3.029. Find all points (if any) of horizontal and vertical tangency to the curve. Use a graphing utility to confirm your results. (If an answer does not exist, enter DNE. 9 ESC X O- + F3 F6 F7 Fg F10 F11 @ # S & 2 3 4 8 Q W E R T Y U A S D F G H J K Z X[-/1 Points] Find the arc length of the curve on the given interval. (Round your answer to three decimal places.) Parametric Equations Interval x = 8t + 5, y - 7 - 5t -ists 3 Need Help? 6. [-/1 Points] DETAILS LARCALC10 10.3.047. Find the are length of the curve on the given interval. (Round your answer to two decimal places.) Parametric Equations Interval 'cos t, =e 'sin t Ost= = Need Help? Which 7. [-/1 Points] DETAILS LARCALC10 10.3.051 Find the arc length of the curve on the interval [0, 27]. Hypocycloid perimeter: to = = (cos(0))3, y = = (sin(6))3 O SC 1 - F2 X F4