Answer:
BC = 30.73
Here,
so first solve for QD
Now! <u>using Pythagoras theorem,</u>
- BC = 30.73 ( rounded to nearest hundredth )
well the answer is 107.8823529411764705 (repeating decimal)
Heya !
No. of ways to arrange n objects is n!
[ When there's no conditions ]
Hence , number of ways we can arrange 5 games is 5! = 120 Ans.
Multiplication is a very old concept in math. So old that it dates back to ancient egypt, mesopotamia, etc. Each place probably came up with the concept on their own parallel to one another, or trade helped make the concept spread. It's very likely that the actual person who came up with the idea is unknown and won't be known since the concept is so ancient. It's like asking "who came up with the alphabet" which is an equally old concept.
Side note: multiplication is repeated addition. So if we added 3+3+3+3+3 to get 15, then we can say 3*5 = 12 as a shortcut. So its likely ancient peoples were adding the same number to itself over and over, leading them to develop a shortcut notation/method to get the answer quicker.
I can't see pictures, but to graph y=-4x, you have to make -4x into slope form.
Just write -4 as a fraction, or -4/1. -4 is the rise, and 1 is the run. So start at the origin, or (0,0), and go down 4 units, then 1 unit right. So you start at (0,0), then now you should be at (1,-4). Repeat the process to make a straight line.
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hope it helps
