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Pencil Holder. A high school art teacher wants to buy material for her students' project. The project consists of making a pencil holder in the

Pencil Holder.A high school art teacher wants to buy material for her students' project. The project consists of making a pencil holder in the shape of a right cylinder. The cost of producing the top and bottom of the pencil holder is 43 cents per cm2and the cost of producing the side of the cylinder is 27 cents per cm2.Hint: the area of the side is 2rh.

(a) The cost function is Note: Enter the cost function in terms of the radiusronly. The symbolis in the Calcpad on the right in Symbols. C(r) =

(b) The dimensions of the pencil holder that has the minimum cost are Note: Enter your answers as fractions or decimal numbers rounded to 4 decimal places without units. r= in h= in

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