The sum of the numbers 1 - 99?
4950.
If you add the pairs
(1+99)+(2+98)...
You get 100 for each pair.
There are 49 pairs, and the 50 stands alone.
So 4900 +50 is
4950.
What is a 7 sided 3d figure called?
It's a pentagonal prism or a hexagonal pyramid. (maybe there are other answers)
Hello Fella~
I'm also working out on the Additional Mathematics Project Work for SPM 2009.
Okay, the point is I have already finished it just now because I accidentally came across all those answers at Scribd.com
Don't believe me?
Here's the sample:
http://www.scribd.com/doc/14822782/Add-Math-Project-2009
Furthermore, I'll not take your cash or whatever.
Just say thanks & it'll be more than everything.
Good Luck!
friendster.com/thebrokenlink
Who is the real person that invented the abacus?
No way to determine, they are present in different forms in many different civilizations and probably had prehistoric origins.
The abacus is simply a highly portable form of the much earlier counting board or counting table, that used pebbles or clay counters in grooves on a wood board or a table covered with a thin layer of sand.
A polygon that has 10 sides that are not all equal
* * * * *
Got the right idea but wrong in the detail. It is a polygon with ten sides in which
Thus a polygon with ten equal sides, and 9 equal angles but the tenth angle being different, would be irregular.
Palindrome words: madam, peep, Otto, racecar, rotator
Palindrome numbers: 121, 265,562, 74,947, 8,030,308
What does a 5 foot ten inch butcher weigh?
He weighs meat. That's his job.
What Greek mathematician was one of the first to study conics and apply them to Greek astronomy?
Most of them, actually. Hero of Alexandria developed a steam-powered rotary engine, built a vacuum pump and wrote volumes on engineering, physics and hydraulics. Archimedes developed the principle of displacement, and wrote of a giant mirror that might be used to set wooden ships on fire by focusing sunlight onto the ship.