## Welcome to H3 Maths

Blog Support for Growing Mathematicians

## Posts tagged with Math in Sport

### Sailing by the numbers – America’s Cup Update II

October5

Following our earlier post is this update on how Mathematics gave the American boat the speed edge to win one of the most remarkable comebacks in sport: “Computer whiz Asim Khan oversaw Oracle Racing’s immense database, developing the hardware and software systems that fed “live” performance data to the crew and helped unlock the secrets […]

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10 x 9 x 8 + (7 + 6) x 5 x 4 x (3 + 2) x 1 = 2020

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)?]