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A blood bank needs 9 people to help with a blood drive. 12 people have volunteered. Find how many different groups of 9 can be formed from the 12 volunteers.

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Joeryn0103

Answer:

A shipping tube is shaped like a triangular prism. The bases are equilateral triangles with edges of 5 inches and a height of 4.3 inches. The tube is 14 inches long. Find the total surface area of the shipping tube.

253 square inches

231.5 square inches

161.5 square inches

221.75 square inches

Step-by-step explanation:

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