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A 100-Foot-Long Cable of Diameter 2 Inches Is Submerged in Seawater

Question 39

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A 100-foot-long cable of diameter 2 inches is submerged in seawater. Because of corrosion, the surface area of the cable decreases at the rate of 900in 2 per year. Express the diameter d of the cable as a function of time t (in years) . (Disregard corrosion at the ends of the cable.)


A) A 100-foot-long cable of diameter 2 inches is submerged in seawater. Because of corrosion, the surface area of the cable decreases at the rate of 900in<sup> 2 </sup> per year. Express the diameter d of the cable as a function of time t (in years) . (Disregard corrosion at the ends of the cable.) A) inches B) inches C) inches D) inches E) inches inches
B) A 100-foot-long cable of diameter 2 inches is submerged in seawater. Because of corrosion, the surface area of the cable decreases at the rate of 900in<sup> 2 </sup> per year. Express the diameter d of the cable as a function of time t (in years) . (Disregard corrosion at the ends of the cable.) A) inches B) inches C) inches D) inches E) inches inches
C) A 100-foot-long cable of diameter 2 inches is submerged in seawater. Because of corrosion, the surface area of the cable decreases at the rate of 900in<sup> 2 </sup> per year. Express the diameter d of the cable as a function of time t (in years) . (Disregard corrosion at the ends of the cable.) A) inches B) inches C) inches D) inches E) inches inches
D) A 100-foot-long cable of diameter 2 inches is submerged in seawater. Because of corrosion, the surface area of the cable decreases at the rate of 900in<sup> 2 </sup> per year. Express the diameter d of the cable as a function of time t (in years) . (Disregard corrosion at the ends of the cable.) A) inches B) inches C) inches D) inches E) inches inches
E) A 100-foot-long cable of diameter 2 inches is submerged in seawater. Because of corrosion, the surface area of the cable decreases at the rate of 900in<sup> 2 </sup> per year. Express the diameter d of the cable as a function of time t (in years) . (Disregard corrosion at the ends of the cable.) A) inches B) inches C) inches D) inches E) inches inches

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