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A Water Trough Is 10 M Long and Has Vertical

Question 99

Multiple Choice

A water trough is 10 m long and has vertical cross-sections perpendicular to its long axis with the shape of an isosceles trapezoid that is 30 cm wide at the bottom, 80 cm wide at the top, and has height of 50 cm. If the trough is being filled with water at the rate of 0.2 cubic metres per minute, how fast is the water level rising when the water is 30 cm deep?


A) A water trough is 10 m long and has vertical cross-sections perpendicular to its long axis with the shape of an isosceles trapezoid that is 30 cm wide at the bottom, 80 cm wide at the top, and has height of 50 cm. If the trough is being filled with water at the rate of 0.2 cubic metres per minute, how fast is the water level rising when the water is 30 cm deep? A) m/min B) m/min C) m/min D) m/min E) m/min m/min
B) A water trough is 10 m long and has vertical cross-sections perpendicular to its long axis with the shape of an isosceles trapezoid that is 30 cm wide at the bottom, 80 cm wide at the top, and has height of 50 cm. If the trough is being filled with water at the rate of 0.2 cubic metres per minute, how fast is the water level rising when the water is 30 cm deep? A) m/min B) m/min C) m/min D) m/min E) m/min m/min
C) A water trough is 10 m long and has vertical cross-sections perpendicular to its long axis with the shape of an isosceles trapezoid that is 30 cm wide at the bottom, 80 cm wide at the top, and has height of 50 cm. If the trough is being filled with water at the rate of 0.2 cubic metres per minute, how fast is the water level rising when the water is 30 cm deep? A) m/min B) m/min C) m/min D) m/min E) m/min m/min
D) A water trough is 10 m long and has vertical cross-sections perpendicular to its long axis with the shape of an isosceles trapezoid that is 30 cm wide at the bottom, 80 cm wide at the top, and has height of 50 cm. If the trough is being filled with water at the rate of 0.2 cubic metres per minute, how fast is the water level rising when the water is 30 cm deep? A) m/min B) m/min C) m/min D) m/min E) m/min m/min
E) A water trough is 10 m long and has vertical cross-sections perpendicular to its long axis with the shape of an isosceles trapezoid that is 30 cm wide at the bottom, 80 cm wide at the top, and has height of 50 cm. If the trough is being filled with water at the rate of 0.2 cubic metres per minute, how fast is the water level rising when the water is 30 cm deep? A) m/min B) m/min C) m/min D) m/min E) m/min m/min

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