Case Study based-1
A box is created from a sheet of cardboard 25 inch on a side by
cutting a square from each corner and folding up the sides .Let x
represent the length of the sides of the squares removed from each
corner .If area of the sides of the box is 13 square inch, give the
answer of the following questions.
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Answer:
Coal is a combustible black or brownish-black sedimentary rock, formed as rock strata called ... The largest consumer and importer of coal is China.
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