Question

Can someone help me? Please show all steps! I can't figure this out. :(

Assign each letter and a blank space to a number as shown by the alphabet table below.
*I'll post a pic of the table and the phrase/matrix.

Answer 1

@jim_thompson5910

Answer 2

@Hero

Answer 3

@mathmale

Answer 4

If you were to replace O with 15, N with 14, E with 5, etc what number sequence do you get for the phrase "ONE QUESTION TO GO" ?

Answer 5

The first step is to write out the phrase in terms of the numbers it corresponds to. so ONE would be like 15 14 5. So that's the first step. keep in mind a space between words is represented by a 0.

Answer 6

so what would the phrase be in numbers? you can write it down and i'll work it out too to check

Answer 7

So.. (15)(14)(5) 0 (17)(21)(5)(19)(20)(9)(15)(14) 0 (20)(15) 0 (7)(15)

Answer 8

Sorry it took so long, @Miracrown and @jim_thompson5910. Is that the right sequence?

Answer 9

That looks correct

Answer 10

There are 18 numbers in that sequence

Cut it in half to get 2 sections (of 9 numbers each). Then stack the first set of 9 numbers over the second set to get this matrix

\[\Large \begin{bmatrix}15 &14 &5 &0 &17 &21 &5 &19 &20 \\9 &15 &14 &0 &20 &15 &0 &7 &15 \end{bmatrix}\]

Answer 11

That is a 2x9 matrix (2 rows, 9 columns)

Answer 12

Then you multiply that 2x9 matrix with the given 2x2 matrix

\[\Large \begin{bmatrix}1 & -2\\ -3 & 7 \end{bmatrix}\begin{bmatrix}15 &14 &5 &0 &17 &21 &5 &19 &20 \\9 &15 &14 &0 &20 &15 &0 &7 &15 \end{bmatrix} = ???\]