## Welcome to H3 Maths

Blog Support for Growing Mathematicians

## Posts tagged with shuttlecock

### Sports Research for improved performance

July17

The Sheffield Hallam University’s Centre for Sports Engineering Research has a compelling array of different resources available for improved performance through close analysis of real data. e.g. 1. Environmental chamber The British Olympic Association (BOA) approved chamber simulates the climate of almost any country in the world. Temperatures can reach +40 degrees Celsius and -20 […]

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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)?]