Welcome to H3 Maths

Blog Support for Growing Mathematicians

Codes and Ciphers

October27

 

 

Scientists announced yesterday that they have used computer translation techniques to decipher a 250 year old, coded manuscript written for a secret society. The manuscript, called The Copiale Cipher, is a beautifully-bound, 105-page, 18th century handwritten from Germany. To view this remarkable document and read of the secrets it unlocked (thanks to some smart Mathematics) click here.

If you enjoy code work check out this web site for the Crypto Club

by posted under Uncategorized | Comments Off on Codes and Ciphers    

Comments are closed.

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)?]

H3 Viewers



Skip to toolbar