Mark as Complete V Ou=_V5 2V5 5 5 Ous-V3 2V3 20. Which of the following is a point on the plane curve defined by the parametric equations? x =3t y =1&2 +12 +2 (1 point) O (-1, 0) O (-3,-28) O (-1, 8) O (-3, 128) 21. Write the following parametric equations as a polar equation. (1 point) x =12 y = 21 Or = 4 cot A csc 0 Or =2 cot @ csc 0 Or = 4 tan 0 sec 0 Or = 2 tan 0 sec 0 22. A baseball player hits a ball at an angle of 52 and at a height of 4.8 ft. If the ball's initial page 1 of 223. Which set of parametric equations represents the function y = 4x2-43x+97? (1 point) x=1-5 O y = 412 - 3t +12 Ox = 2t y =12 -21+97 Ox = 1+5 y = 42 - 3t - 18 Ox = 1+ 3 y = 42 -19: +521. Write the following parametric equations as a polar equation. (1 point) x =12 y = 2t Or = 4 cot 0 csc 0 Or = 2 cot 0 csc 0 Or = 4 tan 0 sec 0 Or = 2 tan O sec 016. Given vectors u = (-6,4) and v = (3,6) , determine if the vectors are orthogonal. If they are not orthogonal, find the angle between the two vectors. (1 point) OThe vectors are orthogonal. The vectors are not orthogonal. The angle between the two vectors is 49.40. The vectors are not orthogonal. The angle between the two vectors is 79.0. The vectors are not orthogonal. The angle between the two vectors is 82.90.12. Which polar coordinates represent the same point as the rectangular coordinate (1,-2) ? Select all that apply. (2 points) O (v5, 63.40) (V5, 296.60) O(-V5,116.60) O (-V5,153.40)6. Which trigonometric function is equivalent to f ( x) = sin x? (1 point) Of ( x ) = cos * + ? Of (x) = cos x+ 5 Of ( x) = cos -x - 2 Of (x) = cos(x-7) 7. Which trigonometric function requires a domain restriction of |0, | 7."|to make it invertable? (1 point) Of(x) = sin x Of(x) =cosx Of(x) = tan x Of(x) = ccx Of(x) = sec x Of(x)= cotx3. Your town's public library is building a new wheelchair ramp to its entrance. By law, the (1 point) maximum angle of incline for the ramp is 4.76. The ramp will have a vertical rise of 2.5 ft. What is the shortest horizontal distance that the ramp can span? O11.9 ft. 30.0 ft. O4.3 ft. O19.1 ft