The surface expressed parametrically by x = r cos $\theta$, y = r sin $\theta$, z = 90 - r² is A) a sphere B) an ellipsoid C) a paraboloid D) a cone E) a hemisphere

Name: The surface expressed parametrically by x = r cos $\theta$, y = r sin $\theta$, z = 90 - r 2 is A) a sphere B) an ellipsoid C) a paraboloid D) a cone E) a hemisphere
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Question

Quizplus · Accepted Answer

The given parametric equations describe a surface where z = 90 - r^2, which is the equation of a paraboloid.

The Surface Expressed Parametrically by X = R Cos θ\thetaθ , Y = R Sin

The Surface Expressed Parametrically by X = R Cos $\theta$ , Y = R Sin