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Wacky Pi Day Activities…

March14

Wacky Pi Day activities, just in from Time.com:

pi logo• In New York City, hundreds are expected to gather around a park fountain at 9:26 a.m. and with glow sticks in hand at 9:26 p.m. (to represent pi as 3.1415926) in an event organized by the National Museum of Mathematics (MoMath).

• Lovebirds can get married — “pi the knot” — in Vegas for $314.15, a deal that comes with an apple pie. (Pining for each other? Ed)

• Chicago athletes and science lovers will run a “Pi K,” organized by the Illinois Science Council. Because March 14 is also Albert Einstein’s birthday, participants named “Albert, Alberta, Albertina or Alberts” got $5 off registration. A sternly-worded disclaimer says, “If you show up on the 14th and are not so appropriately named, you will be fined $3.14, have to run backwards the whole route, and people will call you “Einstein” but not in a positive way.”

• Admission at the Salvador Dalí Museum in Saint Petersburg, Fla., will be $3.14. The surrealist often incorporated the mathematical principle into his art.

 

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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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