Investigate the shape of the surface with parametric equations
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- Determine the direction angles for the line with parametric equations x = 5 + 2t, y = 12 - 8t, and z = 5 + 7t, tERarrow_forwardFind parametric equations for the surface generated by revolving the curve y = 21 sin x about the x-axis. Write the parametric representation in terms of the parameters (u, v), where x = u.arrow_forwardFind a rectangular equation to represent the plane curvearrow_forward
- Find parametric equations and a parameter interval for the motion of a particle starting at the point (2, 0) and tracing the top half of the circle x2 + y2 = 4 four times.arrow_forwardA bee fles around a room at an altitude of 2= 2.3 meters making circles, so that its r coordinate varies from 1.3 to 1.9 meters, and its y coordinate varies from 2.2 to 2.8 meters. The bee completes one circle every 2.3 seconds. At sime=0 seconds, the bee's y coordinate is 2.8 meters and its velocity vector is completely in the +i direction. Write parametric equations to describe the motion of the bee z(t)= sin(2p/23)+22 y(t) =30(2pit2:3)+1.9 z(t) = 23arrow_forwardFind the equations for the tangent line. Let z = -2t.arrow_forward
- Sketch the curve (x2 + y2 )3 =4x2y2 by converting to polar coordinate systemarrow_forwardThe center field fence in a ballpark is 7 feet high and 408 feet from home plate. A baseball is hit at a point h = 2.5 feet above the ground. It leaves the bat at an angle of ? degrees with the horizontal at a speed of 110 miles per hour. Write a set of parametric equations that model the path of the baseball. (Let t be in seconds and let x and y be in feet.) Find the minimum angle required for the hit to be a home run. (Round your answer to one decimal place.)arrow_forwardA wheel with radius 2 cm is being pushed up a ramp at a rate of 7 cm per second. The ramp is 790 cm long, and 250 cm tall at the end. A point P is marked on the circle as shown (picture is not to scale). P 790 cm 250 cm Write parametric equations for the position of the point P as a function of t, time in seconds after the ball starts rolling up the ramp. Both x and y are measured in centimeters. I = y = You will have a radical expression for part of the horizontal component. It's best to use the exact radical expression even though the answer that WAMAP shows will have a decimal approximation.arrow_forward
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