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Posts tagged with algorithm

Machine Learning – More Mathemagic!

March24

“When your bank calls to ask about a suspiciously large purchase made on your credit card at a strange time, it’s unlikely that a kindly member of staff has personally been combing through your account. Instead, it’s more likely that a machine has learned what sort of behaviours to associate with criminal activity – and […]

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What do these faces have in common?

February20

A wide variety of faces, yet they all have something in common. What do you think it is? Answer: They are all fake images! How? See this intriguing video which uses an amazing new mathematical facial formula (algorithm). Click on the image to view (approx 6min):

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Future job? Don’t bank on it!

June16

  Squeezed by low interest rates, shrinking trading revenue, and nimbler technology-based competitors, banks are preparing for the day that machines made by men and women take over more of what used to be the sole province of humans: knowledge work. The human brain is a wondrous machine, but it isn’t changing. The pace of […]

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New Algorithm to predict Tsunamis

May28

Scientists at the Australian National University have a plan to improve tsunami warning systems around the globe: they’ve built an algorithm. Using data from monitors in the ocean and modeling what a tsunami looked like when it was birthed, the team of researchers can better predict how big it is, where it’s going, and who’s […]

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Echo..echo..echo

June24

“A snap of a finger, a handful of scattered microphones and a computer algorithm are all it takes to create an accurate three-dimensional map of a room, say Swiss and US researchers. The method, described recently in the US journal the Proceedings of the National Academy of Sciences, measured the distance between echoes to create maps of […]

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Post Support

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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