The Answer #6488 is acceptable. Good work, bobbym!

#6489. Name the American electronic commerce and cloud computing company that was founded on July 5, 1994, by Jeff Bezos and is based in Seattle, Washington. It is the largest Internet-based retailer in the world by total sales and market capitalization.

#6490. Name the Chinese businessman (Born 29 April 1944). He is the founder of Lenovo, one of the largest computer makers in the world. He remains one of the leaders of the company. He founded Lenovo (whose English name was originally Legend), in 1984 with a group of ten other engineers in Beijing with 200,000 yuan and an office roughly 20 square yards in size. He came up with the idea to start Lenovo in response to a lack of funding at the Chinese Academy of Sciences (CAS). His superior arranged for the academy to loan him and the other co-founders the afore-mentioned 200,000 yuan. Of this time, he said, "It wasn't easy. The lowest thing you could do in the early '80s, as a scientist, was to go into business. China had a strict planned economy and there was barely room for a freewheeling company like ours."

]]>The solution M #252 is correct. Splendid, bobbym!

M #253. Find the depth of a cylindrical tank of radius 28 m, if its capacity is equal to that of a rectangular tank of size 28 m x 16 m x 11 m.

]]>The solution #3722 (three parts) is correct. Neat work, bobbym!

#3723. If

, find the value of.]]>

The column is called billions.

1,234,567,890 This one will be harder. Just remember the names of the columns and you will get it. See you later, looks like I am heading over to a renter-tenant meeting.

]]>Welcome to the forum.

Whenever I teach fractions, I start with diagrams.

example: http://www.mathisfunforum.com/viewtopic … =17631&p=6

Bob

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I've never heard it called that but, as you will see from this link, I did know this:

http://www.mathisfunforum.com/viewtopic … 92#p368592

Bob

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LATER EDIT: Had a brain-wave about how to search for it and here it is (many solutions)

http://www.mathisfunforum.com/viewtopic.php?id=20628

Bob

]]>I suggest you to read through my thread " An algorithm to generate primes " .

You will find our similarity and difference .

]]>

My understanding is that the SkiaSharp.SkPath.Arc method (https://developer.xamarin.com/api/me...ystem.Boolean/), is looking for..."public Void ArcTo (SKRect oval, Single startAngle, Single sweepAngle, Boolean forceMoveTo).

I do not know how to translate the C1 and C2 info (Delta, radius, etc.), into startAngle, sweepAngle, etc.).

Thanks

]]>A soccer ball is constructed using 32 regular polygons with equal side lengths. Twelve of the polygons are pentagons, and the rest are hexagons. A seam is sewn wherever two edges meet. What is the number of seams in the soccer ball?

Number of hexagons = 32 - 12

Each hexagon has 6 sides and each pentagon has 5. Before the ball is sewn together work out how many sides in total. To make the ball pairs of sides are sewn together so halve this total.

If you post your working I'll check it over.

Bob

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