Posted by Anonymous on Saturday, September 15, 2012 at 10:29am.
Are they implying that interaction (I) between children (c) is a quadratic function ????
then
I(c)= (c-1)^2
so I(8) = 7^2 = 49
(look like a text-book editor's feeble attempt to "make mathematics real" )
A playground is being designed where children can interact with their friends in certain combinations.
If there is 1 child, there can be 0 interactions.
If there are 2 children, there can be 6 interactions.
If there are 3 children, there can be 15 interactions.
If there are 4 children, there can be 27 interactions.
How many interactions will there be for 7 children?
60
81
105
108
105
Related Questions
Math Algebra 2 - Mr. Mullett has designed a playground for his 4 kids. This ...
Math - A school is fencing in a rectangular area for a playground. It plans to ...
ratio - at a playground, the ratio of boys to girls was 5:6. if 2 over 5 of the ...
Early Child Ed. - I have a couple of questions that I need help on: 1. Because ...
proofread - Hi, can someone proofread this for me. I'll appreciate it. ...
math - Max. He and his four friends are having ice cream. There are only three ...
math - Simran Gill speed walks around the school playground every evening. The ...
Physics - 1. A certain playground merry-go-round is essentially an 90-kg iron ...
Algebra - The length of a rectangular playground exceeds twice its width by 25 ...
Child Care - Children with special needs may have delays or be slow to progress ...
For Further Reading
