I only need answer for missing or questions I got wrong.

(- ) C i webassign.net/web/StudenlfAssignmeanesponses/subrnit?dep:289799768ttags:aulosave#04 l3 E . El . 5 Need Help? i i A 4. [ Points] SCALCET8 10'1'AE'005' PRACTICE ANOTHER y EXAMPLE 5 Sketch the curve with parametric equations x : 3 sin(t), y : 9 sin2(t). SOLUTION Observe that y = (3 sin(L'))2 = x2 and so the point (x, y) moves on the parabola y = x2. But note also that, since 1 S sin(t) S 1, we have C S x S E , so the parametric equations represent only the part of the parabola for which E g x g E . Since sin(t) is periodic, the point (x, y) : (3 sin(t), ) moves \\ \\ / / back and forth infinitely many times along the parabola from (3, E) to (3, E). Video Example-Q Need Help? i 5. [011 Points] PREVIOUS ANSWERS SCALCETS 10.1.506.XF. Use the graphs of x = t) and y = pm to sketch the parametric curve x = f(t), y = g(t). Indicate with arrows the direction in which the curve is traced as t increases. 3 J \\ l / 1 V - ,0 Type here to search . A 2414 DHW 8 (10.1 - 10.2) - $22 - X C If A And B Are Fixed Numbers, Fil X C Find The Surface Area Generated X + V X C a webassign.net/web/Student/Assignment-Responses/submit?dep=28979976&tags=autosave#question3943441_6 7. [2/3 Points] DETAILS PREVIOUS ANSWERS SCALCET8 10.1.041. MY NOTES If a and b are fixed numbers, find parametric equations for the curve that consists of all possible positions of the point P in the figure, using the angle 0 as the parameter. (Enter your answer as a comma- separated list of equations. Let x and y be in terms of 0.) x = acos(0) ,y = b sin (0) a b P A Eliminate the parameter. acos (0),b sin(0) ) X Identify the curve. O hyperbola O ellipse O circle O parabola Need Help? Read It Watch It Type here to search O 56.F Clear ~ 0 1 ( 1x ENG 10:20 PM KO 3/24/2022 23A 2414 DHW 8 (10.1 - 10.2) - $22 - X C If A And B Are Fixed Numbers, Fil X C Find The Surface Area Generated X + V X > C a webassign.net/web/Student/Assignment-Responses/submit?dep=28979976&tags=autosave#question3943441_6 10. [1/4 Points] DETAILS PREVIOUS ANSWERS SCALCET8 10.1.046. MY NOTES PRACTICE ANOTHER If a projectile is fired with an initial velocity of vo meters per second at an angle a above the horizontal and air resistance is assumed to be negligible, then its position after t seconds is given by the parametric equations x = (Vocos(a))t y = (vosin(a))t - 1gt2 where g is the acceleration due to gravity (9.8 m/s2). (Round your answers to the nearest whole number.) (a) If a gun is fired with a = 30 and vo = 700 m/s. When will the bullet hit the ground? 71 S How far from the gun will it hit the ground? 606 * m What is the maximum height reached by the bullet? 149 * m (b) Find the equation of the parabolic path by eliminating the parameter. x2 + (1+ 4.912)2= 6400072 X Need Help? Read It Watch It 11. [-/1 Points] DETAILS SCALCET8 10.2.501.XP. MY NOTES PRACTICE ANOTHER Find dy/dx. x = tsin(t), y = t2 + 9t Type here to search O 56.F Clear ~ 03 1 ( x ENG 10:21 PM KO 3/24/2022 23A 2414 DHW 8 (10.1 - 10.2) - $22 - x C If A And B Are Fixed Numbers, Fil X C Find The Surface Area Generated X + V X -> C o webassign.net/web/Student/Assignment-Responses/submit?dep=28979976&tags=autosave#question3943441_6 149 x m (b) Find the equation of the parabolic path by eliminating the parameter. 12 + (1 + 4.972 )2=640007- X Need Help? Read It Watch It 11. [-/1 Points] DETAILS SCALCET8 10.2.501.XP. MY NOTES PRACTICE ANOTHER Find dy/dx. x = tsin(t), y = t2 + 9t Need Help? Read It Watch It 12. [2/2 Points] DETAILS PREVIOUS ANSWERS SCALCET8 10.2.505.XP. MY NOTES Find an equation of the tangent to the curve at the given point. x = cos(t) + cos(2t), y = sin(t) + sin(2t), (-1, 1) y = 2x + 3 Then graph the curve and the tangent. y Type here to search O 56.F Clear ~ 03 1 ( 4x ENG 10:21 PM KO 3/24/2022 23A 2414 DHW 8 (10.1 - 10.2) - $22 - X C If A And B Are Fixed Numbers, Fil X C Find The Surface Area Generated X + X C a webassign.net/web/Student/Assignment-Responses/submit?dep=28979976&tags=autosave#question3943441_6 13. [-/2 Points] DETAILS SCALCET8 10.2.017. MY NOTES PRACTICE ANOTHER Find the points on the curve where the tangent is horizontal or vertical. If you have a graphing device, graph the curve to check your work. (Enter your answers as a comma-separated list of ordered pairs.) x = t3 - 3t, y = t2 - 7 horizontal tangent (x, y) = vertical tangent ( x, y ) = Need Help? Read It Watch It 14. [-/2 Points] DETAILS SCALCET8 10.2.520.XP. MY NOTES PRACTICE ANOTHER Find the points on the curve where the tangent is horizontal or vertical. If you have a graphing device, graph the curve to check your work. (Enter your answers as a comma-separated list of ordered pairs.) x = cos(30), y = 5sin(0) horizontal tangent (x, y) = vertical tangent ( x , y ) = Need Help? Read It 15. [0/2 Points] DETAILS PREVIOUS ANSWERS SCALCET8 10.2.509.XP. MY NOTES PRACTICE ANOTHER At what points on the given curve x = 2ts, y = 2 + 30t - 4t2 does the tangent line have slope 1? Type here to search O 56.F Clear ~ 03 1 ( x ENG 10:21 PM KO 3/24/2022 23