Encryption Matrices are commonly used to encrypt data. Here is a simple form such an encryption can take. First, we represent each letter in the alphabet by a number, so let us take < space > = 0, A = 1, B = 2, and so on. Thus, for example, "ABORT MISSION" becomes [1 2 15 18 20 0 13 9 19 19 9 15 14]. To encrypt this coded phrase, we use an invertible matrix of any size with integer entries. For instance, let us take A to be the 2 × 2 matrix 3 4 1 2 . We can first arrange the coded sequence of numbers in the form of a matrix with two rows (using zero in the last place if we have an odd number of characters) and then multiply on the left by A. Encrypted Matrix = 3 4 1 2 1 15 20 13 19 9 14 2 18 0 9 19 15 0 = 11 117 60 75 133 87 42 5 51 20 31 57 39 14 , which we can also write as [11 5 117 51 60 20 75 31 133 57 87 39 42 14]. To decipher the encoded message, multiply the encrypted matrix by A−1. The following exercise uses the above matrix A for encoding and decoding. Use the matrix A to encode the phrase "GO TO PLAN B".

Answers

Answer 1

Answer:

ok

Step-by-step explanation:


Related Questions

Find the total of a
$60 meal with 15%
tip and 8% tax.

Answers

Answer: $73.8 15% of 60 is 9 and 8% of 60 is4.8 then if you add them all together you get 73.8$

Step-by-step explanation:

Answer:

$73.8

Step-by-step explanation:

(15+8)= 23 -> .23 = .23 times 60 = $73.8

Multiply the sum 5 and 3 and the sum of 8 and 9

Answers

Answer:

136

Step-by-step explanation:

Sum of 5 and 3: 8

Sum of 8 and 9: 17

17 * 8 is 136

Answer: The sum of 5 and 3 is 8 and the sum of 8 and 9 is 17.

5.175 into a fraction

Answers

5.715/1 is the answer

Identify the pair of angles as complementary, supplementary, or neither.
PLEASE HELP

Answers

Djjekelekenene r Jedi’s

Answer:

supplementary

Step-by-step explanation:

135 + 45 = 180

supplementary angle ALWAYS add up to  180.

Factor this trinomial.
x2 - 9x+ 20
O A. (x – 4)(x - 5)
O B. (x-2)(x+10)
O C. (x - 2)(x - 10)
O D. (x – 4)(x + 5)

Answers

A is correct, (x-4)(x-5)

The factorization of the given trinomial [tex]x^2 - 9x+ 20[/tex] is (x – 4)(x - 5). The correct option is A.

What is trinomial?

A trinomial is a polynomial that has three terms. To factor a trinomial of the form [tex]ax^2 + bx + c[/tex], you need to find two binomials that multiply together to produce the original trinomial.

To factor the trinomial [tex]x^2 - 9x + 20[/tex], we need to find two numbers that multiply to 20 and add up to -9. These two numbers are -4 and -5. Therefore, we can write:

[tex]x^2 - 9x + 20 = (x - 4)(x - 5)[/tex]

Or, To factor [tex]x^2 - 9x + 20[/tex], you need to find two numbers that multiply to 20 and add up to -9. These numbers are -4 and -5 because -4*(-5) = 20 and -4 + (-5) = -9.

You can factor the trinomial as (x - 4)(x - 5).

Thus, the correct option is A.

For more details regarding trinomial, visit:

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Target buys video games for $25/game. They markup the price by 75%. How much do
they charge customers for a videogame? Do not enter a dollar symbol with your
answer.

Answers

9514 1404 393

Answer:

  $43.75

Step-by-step explanation:

The amount of the markup is ...

  $25 × 0.75 = $18.75

The final cost to the customer is ...

  selling price = purchase price + markup

  = $25.00 + 18.75 = $43.75

They charge customers $43.75 for a videogame.

Let (12,-5) be a point on the terminal side of an angle 0. Find the values of sin e, cose, and tan

Answers

Answer:

Sin = -5/13

Cos = 12/13

Tan = -5/12

Step-by-step explanation:

. Jamie is walking of a mile every
hour. At that rate, how far will
Jamie have walked in one hour?

Answers

Answer:

a mile

Step-by-step explanation:

he walked 1 mile an hour

hope this helped

Answer:

Jamis would have walked 1 mile in one hour

Step-by-step explanation:

since Jamie walks a mile every hour, at that rate he would have walked 1 mile in one hour as given above.

I hope this helped! :)

☁️☁️☁️☁️

QUESTION:
Rachelle is offered a new job with Big Time Book-Sellers. Her starting wage is $10.00
per hour, and she will receive a $0.50 raise after the first year. For each year that she
stays with the company after that, her raise will be $0.50 more than it was the year
before. How much will Rachelle make per hour in her 7th year working at Big Time
Book Sellers?
A) How would you solve this problem? Explain the steps you would take. What is
your answer?
B) What is one important detail from this problem that you think people might
commonly miss?

Answers

Answer:

Step-by-step explanation:

multiplicas 0.50 por 7 , el resultado es 3.5, 3.5 lo sumas a 10 y eso es el resultado de lo que ella ganaría 13.50 dólares por hora después de trabajar 7 años con ellos.

a)You multiply 0.50 by 7, the result is 3.5, 3.5 l add to 10 and that is the result of what she would earn, $ 13.50 per hour after working 7 years with them.

(Statistics) A local gym collects data on the number of memberships it sold in each month last year compared to the number sold in each month this year. For example, the January sales from last year are compared to the January sales from this year. Which of the following best describes the first step needed to simulate this data?

(Answer choices shown in photo. Will report fake/spam answers. Thanks for the help).

Answers

Answer:

Determine the proportion of months where memberships sold decreases,

increases and remained the same.

Step-by-step explanation:

I just took the test and got it correct.

The first step needed to simulate this data is:

Assign each month a digit from 1 to 24 to account for the 24 total months being compared.

Option B is the correct answer.

What is simulating data?

Simulating data means creating artificial data that mimics the characteristics of real data.

This artificial data is generated by using a model or a set of rules that describe how the data might be generated under certain conditions.

We have,

The first step needed to simulate this data is to assign each month a digit from 1 to 24 to account for the 24 total months being compared.

This will allow for an easy comparison of the sales data from last year and this year.

Once each month has been assigned a digit, the data can be organized and analyzed to determine the proportion of months where memberships sold decreased, increased, and remained the same, as well as the mean monthly sales from last year and this year.

Finally, random digits can be assigned to each sales figure from last year and this year to create a simulated data set that can be used for further analysis and modeling.

Thus,

The first step needed to simulate this data is:

Assign each month a digit from 1 to 24 to account for the 24 total months being compared.

Learn more about simulating data here:

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Find the average rage of change of each of the following functions over the interval 1 < × < 5.

Answers

not sure maybe 45 or 10

A student read the first 150 pages of a book that is 450 pages long.
What fraction of the book does the student have left

Answers

Answer:

1/3

Step-by-step explanation:

the book is 450 pages long

the student read 150 pages

so he read 150/450=1/3

Answer:

2/3

Step-by-step explanation:

150x3=450

so 2 thirds

In ΔTUV, v = 49 inches, u = 47 inches and ∠U=65°. Find all possible values of ∠V, to the nearest degree.

Answers

Answer: 16

Step-by-step explanation:

sin M/6.3=sin 21/8.2

6.3 sin 21/8.2=0.27533147

sin^-1(0.27533147)=15.981=16

Estimate the following product using a power of ten

Answers

Answer: 10^2
Step-by-step explanation:
43.27×9.1=
393.757
Estimate. 400
10×10=100×10=1000
This is wrong because the estimated number is oy 400.
So, 10×10=100
The answer is 10^2.

100 Multiplicaciones que me den 100

Answers

Do you mean 100 multiplied by 100?

Answer:

10 por 10

5 por 20

50 por 2

1 por 100

25 por 4

Step-by-step explanation:

I'll mark as brainliest!
Please help!

Answers

Answer: See explanation

Step-by-step explanation:

1. Decimal fraction: ¹⁵⁷/₁₀₀

Fraction: ¹⁵⁷/₁₀₀ or 1 ⁵⁷/₁₀₀

2. Decimal Fraction: ³¹²/₁₀₀

Fraction: ⁷⁸/₂₅ or 3³/₂₅

3. Decimal Fraction: ⁶³⁰/₁₀₀

Fraction: ⁶³/₁₀ or 6³/₁₀

4. Decimal Fraction: ¹¹⁰/₁₀

Fraction: ¹¹/₁

5. Decimal Fraction: ¹¹²/₁₀

Fraction: ⁵⁶/₅ or 11¹/₅

5-x=3
Work out the value of x

Answers

Answer:

x = 2

Step-by-step explanation:

5 - x = 3

- x = 3 - 5

- x = - 2

x = 2

5-x=3
-5 -5
-x=-2
- -
X=2

Answer is x=2

Suppose you deposit ​$2,000 in a savings account that pays interest at an annual rate of ​4%.

Answers

0.04 x $2000 = 80

Note: $80 is for one year
80$ for just one year

pensé un número y lo dividí entre 3 luego sume 15 y el resultado fue 23​

Answers

Answer:

  x: 3 = 23 -15

     x = 8 x 3

    x = 24

Step-by-step explanation:

What is the answer for
(7-2)÷5

Answers

Answer:

1

Step-by-step explanation:

7-2=5 5/5=1

Felix divided his shirts into three equal groups. Evaluate when s = 18.

Answers

Answer:

3 and 6.

Step-by-step explanation:

Write and evaluate the expression. Then, check all that apply.

Felix divided his shirts into three equal groups. Evaluate when s = 18.

 

The expression is

The expression is

The expression is s/3

The expression is

The answer is

The answer is 6.

What is (7-2)^2+3/ 1/6
( / ) this means divide and (^) that means to the power

Answers

Answer:
43

Explanation:
To start off you always handle the whatever's in your parentheses. 7-2 is 5.
Now your equation should look like this-
(5)^2 +3/1/6
5 to the power of 2 is 25 (5 times 5)
so now instead of 5 you have 25:
25 +3/1/6

To divide fractions you first have to make 3 and fraction so just put a one below it so it's still it's full value: 3/1
When dividing fractions you actually end up multiplying, you keep the first fraction the same (3/1) and you flip the second one (1/6 which is now 6/1) and then you multiply.
3/1 * 6/1 equals 18/1 which actually just equals 18 and then you get 25 + 18 from the parentheses and that equals 43 :)

Hope this helped! i'm horrible at explaining but i tried!

Answer:

ewannnnnnnnnnnnnn

Step-by-step explanation:

d q den alam d pa namin pinagaaralan yan, xenxia na godbless

A student is able to finish 2 homework problems per hour. If they have already completed 4 problems, how many hours will it take for them to finish an assignment which has 18 problems total? Give your answer to two decimal places.

Answers

Answer:

Step-by-step explanation:

4+2t=18

2t=14

t=7 hours

Answer:

7.00 hours

Step-by-step explanation:

They already did 4 problems and need to do 18 problems in total.

18 - 4 = 14 problems

2 problems/ per hour

14 problems/ 7 hours

It will take them 7 hours to finish. Since you said "Give your answer to two decimal places." You could write it as 7.00 hours.

I dont know how to do surface area

Answers

Answer: the equation for SU is 2(lb+bh+hl)

Step-by-step explanation: L stands for length B stands for base. H stand for height multiply that by 2

HELP PLS PLS PLSBPLSBPLS PLS

Answers

Answer:

a and c are correct

b and are wrong

bc length=ab length=4 squres

so triangle is isosceles.a is correct

abc angle is right angle.so c is correct

triangle has only one line of symmetry.that will be the line joining b and the mid point of ac

ac side is bigger than other two sides.so d is incorrect

a- False
b- i’m not sure sorry, i think false
c- True
d- True

Bella the Chihuahua weighs 5 1/2 pounds. What is Bella's weight in Kilograms?

Answers

About 2.495 I think

PLEASE HELP ME
Amelia burns 10 calories for each minute that she spends running. How many calories will she burn if she runs for 20 minutes?
SHOW YOUR WORK

Answers

Answer:

She will burn 200 calories

Step-by-step explanation:

10(number of calories)x20(minutes)=200

Answer:

amelia is running for 20 minutes. so

10 calories per minute

x

20 minutes of running

=

200 calories burned.

10 x 20 = 200

Find the area of the following figure:

Answers

Answer:

138

Step-by-step explanation

If there are 125 boxes of prescription bottle labels at the beginning of inventory cycle, and 25 3/4 remain ,how many boxes of labels remain?

Answers

Answer:

Rounded to the nearest integer, 32 boxes of labels remain at the end of the inventory cycle.

Step-by-step explanation:

Given that there are 125 boxes of prescription bottle labels at the beginning of the inventory cycle, and 25 3/4 remain at the end of it, to determine how many boxes of labels remain the following calculation must be performed:

3/4 = 0.75 + 25 = 25.75

125 x 25.75 / 100 = X

3218.75 / 100 = X

32.1875 = X

Thus, rounded to the nearest integer, 32 boxes of labels remain at the end of the inventory cycle.

which of these equations could represent the blue line?

Answers

Answer:

y = 1/2x

Step-by-step explanation:

The x seems to double the size of the y on the points.

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