Find the area of the blue shaded region
[2543] Find the area of the blue shaded region - Find the area of the blue shaded region. Express result to the accuracy of 3 decimal. - #brainteasers #math - Correct Answers: 43 - The first user who solved this task is Roxana zavari
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Find the area of the blue shaded region

Find the area of the blue shaded region. Express result to the accuracy of 3 decimal.
Correct answers: 43
The first user who solved this task is Roxana zavari.
#brainteasers #math
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Langauge

Someone mistakenly leaves the cages open in the reptile house at the Bronx Zoo and there are snakes slithering all over the place.

Frantically, the keeper tries everything, but he can't get them back in their cages. Finally he says, "Quick, call a lawyer!"

"A lawyer? Why??"

"We need someone who speaks their langauge!"

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First commercial dishwashing machine

In 1889, the first commercial dishwashing machine was marketed in Chicago, designed over a number of years by Josephine Cochrane. She was granted U.S. patent No.355,139 on 28 Dec 1886 (when she spelled her last name Cochran). She received an award for her invention at the 1893 World's Fair in Chicago. The company she founded to sell the dishwasher to hotels, restaurants and other commercial groups was purchased in the 1920's by the Hobart Corporation. They introduced (1949) the "KitchenAid" brand name that is known today. Other dishwashing machine patents had been issued, starting with a hand-cranked device patented by Joel Houghton on 14 May 1850, but Cochrane marketed her design successfully.«
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