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Anton [14]
3 years ago
8

Edgar builds a sand castle with a rectangular base. The side lengths of the base are 25 in. And 16 in. He wants to surround the

castle's base with a moat that is w inches wide. Write a quadratic function A in standard form to represent the combined area taken up by the castle and the moat.
Mathematics
1 answer:
STALIN [3.7K]3 years ago
7 0

Answer:

A=4w^2+32w+400

Step-by-step explanation:

-Given the castle dimensions is 25in by 16 in.

-And the moat's width is w:

The moat's width will increase the castle's dimension bytwice it's width, 2w:

#The castles area is thus calculated as:

A=lw\\\\=(25+2w)(16+2w)\\\\=400+80w+32w+4w^2\\\\=4w^2+32w+400

Hence, the combined area of the boat is given as A=4w^2+32w+400

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