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iPad in Mathematics…

April12

Apple CEO Tim Cook, in 2012, made the following comment;

“The reason that we [lowered the iPad 2 price] was because…there was a buyer that really wanted the best product, but needed it to be a little less expensive. I believe that we saw that. I think it did help our sales. I think it’s particularly helping in K-12. The adoption rate of iPad in education is something that I’ve never seen from any technology product in history. Usually education tends to be a fairly conservative institution in terms of buying, or K-12 does, and we’re not seeing that at all on the iPad. It’s been a big help for us, and I’m really glad that we did it.” Full article from Macworld here.

Yes, the iPad has many great apps available for the growing mathematical student. The Top 5 are here while a more definitive website is this one.

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NCEA Level 2 Algebra Problem. Using the information given, the shaded area = 9, that is:
y(y-8) = 9 –> y.y – 8y – 9 =0
–> (y-9)(y+1) = 0, therefore y = 9 (can’t have a distance of – 1 for the other solution for y)
Using the top and bottom of the rectangle,
x = (y-8)(y+2) = (9-8)(9+2) = 11
but, the left side = (x-4) = 11-4 = 7, but rhs = y+? = 9+?, which is greater than the value of the opp. side??
[I think that the left had side was a mistake and should have read (x+4)?]

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