Question

only answer 20 and 21. I already have the answe for the 1st question

A curve is described by the following parametric equations: x 3+t Which statement best describes the curve? (1 point) The curve is a parabola with a vertex at (3,-4) and is traced from left to right for increasing values of t. The curve is a parabola with a vertex at (3,-4) and is traced from right to left for increasing values of t. The curve is a parabola with a vertex at (-3,4) and is traced from left to right for increasing values of t. The curve is a parabola with a vertex at (-3,4) and is traced from right to left for increasing values of t. 20 A ball is thrown with a slingshot at a velocity of 95 ft./sec. at an angle 25° above the ground from a height of 6 ft. Approximately how long does it take for the ball to hit the ground? Acceleration due to gravity is 32 ft./s2 (1 point) 2.65 seconds 2.51 seconds 5.45 seconds 5.38 seconds 6 t = 1.57 1- t=0 6 -3-4 -3-2 -1101 2 3 4 5 6 -낮 -5 -6 Use the graph to answer the question. 21. Which set of parametric equations represents the graph of the function shown? (1 point) x 2.5 cos t and y- 1.5 sin t x 10 cos t and y - 6 sin t x 5 cos t and y - 3 sin t x 5 sin t andy - 3 cos t

Answer 1

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