Internet sites often ask for a secret phrase to recover lost passwrds. Jason encoded a secret phrase using matrix multiplication
. He multiplied the clear text code for each letter by the matrix:
The matrix representing the encoded text is:
Jason’s secret phrase is:
Clear text encoding:
Decoding a Message by Finding An Inverse
The matrix representing the encoded text is:
Jason’s secret phrase is:
Clear text encoding:
Decoding a Message by Finding An Inverse
2 answers:
You might be interested in
Answer:
x= 3/4
Step-by-step explanation:
2(3x - 2) = (2x - 1)
6x - 4 = 2x -1
4x = 3
x= 3/4
Given that:
(x+2)(2x-5)=54
We have:
Using the quadratic formula, this is approximately 5.66, so rounded to the nearest whole number, our answer is 6.
(x+2)(2x-5)=54
We have:
Using the quadratic formula, this is approximately 5.66, so rounded to the nearest whole number, our answer is 6.