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Archive for January, 2014

16 yr old math student solves 350 yr old problem

January31

From IndiaTVnews, May 26: Shouryya Ray, a 16-year-old Kolkata boy who came to Germany without any knowledge of German, has managed to solve two fundamental particle dynamics theories which physicists have previously been able to calculate only by using powerful computers. Shouryya currently in Dresden has cracked a 350-year-old maths problem set by Sir Isaac Newton. His […]

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Infinite Series

January29

An infinite number of mathematicians walk into a restaurant. The first one orders a soda. The second one orders half a soda. The third, a quarter of a soda, etc. The waitress says, “You’re all idiots”, and pours out two full sodas!

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Doodling leads to math discoveries

January28

Click on the Fibonacci tag below for more information on this great math subject.

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Mathematics abounds in The Simpsons

January27
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Who uses math the most in the workforce?

January25

A recent USA study of over 2000 workers by sociologist Michael Handel found most workers in the United States weren’t actually doing very much complicated maths at all. The study revealed that high-skilled blue-collar workers, such as those in construction trades and mechanics, were actually the highest daily users of maths, while those in lower paid white […]

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Statistical Measuring Question…

January24

You’ve got an audience of 350 people. They’ve just heard two poems recited on stage. You want to know which one they like best. How do you do it, assuming that you need the voting result within a few minutes? After giving this problem a go yourself (or in your class group) check out some […]

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Sine Method used to measure tallest tree

January23

Scientists recently measured the tallest tree in New Zealand at just over 81 metres. How did they do this? Using lasers and the Sine method – that is, the Sine of the angle formed by the lasers gave the height/hypotenuse. Read more here. (Note: This image is not of the tallest tree but gives some […]

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Can you handle a bit of pizza?

January22

In this online test you are required to interpret Pie Graphs. See how you do. The pizza was photographed by H3 in Italy in the city of Florence.

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The Art of Rectangular Pyramids

January15

Ah…The Louvre – perhaps the world’s most famous museum and an iconic, classical building which is noted for its modernistic entry which uses pyramids to contrast its surroundings. (H3 was taken aback by the beauty of this entry and the way in which it differed so much to the style of the French buildings and […]

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New learning materials for Math Students

January12

The Salt Lake Tribune newspaper recently announced a new mathematical initiative to help students and teachers in Years 7 and 8, with further development in High School Mathematics. In this instance, Utah Middle School Math is not a traditional hardbound textbook. Rather, it is a series of “chapters” that can be downloaded, free of charge, by […]

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Post Support

Largest number between o and 1 million which does not contain the ‘n’ is 88

 

Rotation SAT Problem: Answer: 4 (see: https://www.youtube.com/watch?v=FUHkTs-Ipfg)

 

Which number has its letters in alphabetical order? Answer: F O R T Y

Hidden Rabbit? Clue: check the trees

How long for the stadium to fill? 45 minutes.

Where are you? the North Pole

Prize Object Puzzle: If Sue does not know where the prize is in the first question, it can’t be under the square. She must have been told it is under another shape. Apply this same logic to Colin. It is then obvious that the prize cannot be under a yellow object. That helps Sue eliminate her yellow shapes. Got the idea?

Algebra Puzzle: Answer = 1

Popular Math Problems Answers: 1, 1

Number of tabs? According to Lifehacker, the ideal number of tabs you should have open is nine. Yes, a single digit. To some, this is like playing a piano and only using a fraction of the notes!

Worst Graph? Where to start. What a visual mess and even some of the lines merge and are impossible to follow. A graph is a visual display of data, with the goal to identify trends or patterns. This is a spider’s web of information which fails to show a clear pattern at all. Solution? Well, different colors would help, or why not group in two or three graphs where trends are similar?

Number of different nets to make a cube is eleven – see this link

Homework Puzzle; The total value of the counters is 486, so halve this to get 243. Now, arrange the counters to equal this amount twice.

The graph on the left (Coronavirus) is for a time period of 30 days, while the one on the right (SARS) is for 8 months! Very poor graphical comparison and hardly relevant, unless it is attempting to downplay the seriousness of the coronavirus?

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)?]

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