Who invented the lightbulb? Thanks

http://www.google.com/search?hl=en&rls=com.microsoft:en-us:IE-SearchBox&rlz=1I7SUNA&sa=X&oi=spell&resnum=0&ct=result&cd=1&q=light+bulb+inventor&spell=1

I fail to see how that relates to math

I think Thomas Elva Eddison invented the light bulb

if (x,y) are the coordinates of a point p in the xy plane then x is called _______ of p and the _______ of p

The height of the right triangle is 9 units, and the area is 54 sq. units. how long is the base of the triangle?

A=1/2h(b1=b2)

The lightbulb was invented by Thomas Edison. He is credited with the invention because he and his team at the Edison Electric Light Company were able to develop a practical and commercially viable electric light bulb. To find this answer, you can conduct a quick online search using search engines like Google or Bing, or refer to reliable sources such as encyclopedias or history books.