(a) Find inequalities that describe a hollow ball with diameter 80 cm and thickness 0.9 cm. (Assume the ball is centered

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A Find Inequalities That Describe A Hollow Ball With Diameter 80 Cm And Thickness 0 9 Cm Assume The Ball Is Centered 1 (30.27 KiB) Viewed 70 times

(a) Find inequalities that describe a hollow ball with diameter 80 cm and thickness 0.9 cm. (Assume the ball is centered at the origin of the coordinate system.) 79.1 ρ< 80, π< θ < 2π, Οξφ < π/2 Ο 39.1 < ρ< 40, 0θ < 2π, Οξφπ Ο 79.1 80, 0 <θ< 2π, 0% φπ 39.1 ρ< 40, πξθ < 2π, 0s φ < π/2 Ο 0.9 < ρ< 40, 0 < θ< π, 0φ π/2 (b) Suppose the ball is cut in half. Write inequalities that describe one of the halves. (Select all that apply.) 39.1 καιρs 40, Ο θ < 2π, Οξφπ Ο 39.1 < ρ< 40, 0 < θ < π, 0 < φ < π 39.1 < ρ< 40, 0 <θ < 3π/2, 0 < φπ Ο 39.1 < ρ< 40, 0 < θ < 2π, 0 < φ < π/2 0 39.1 < ρ< 40, 0 < θ < π, 0 < φ< π/2