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how do you solve a matrix (or numerical) cryptogram? PLEASE HELP!?
im just a beginner...so pleasee try to simplify it as much as possible. thank you!
to paul...whatever your name is...: i care. and people in wwII cared. that was how German messages were decoded. And clearly other people care, otherwise, it wouldn't even exist. So don't be an d***. k?
and Captain Lemons: thank you for copy-pasting, but i don't even think you read the question. The answer you gave is how to multiply matrices. What im asking, is how to decode a numerical cryptogram by USING matrices. but i appreciate your original, non-plagiarized answer. thank you.
2 Answers
- Anonymous1 decade agoFavourite answer
1. Write the zero matrix denoted by the following.
2. Determine the value of the variables.
3. Determine the value of the variables.
4. Find the values of x and y in each of the equations, if a, b, c and d are all nonzero real numbers.
5. Solve the equation for matrix X.
6. Subtract the matrices if possible. Give the reason if not possible.
7. Can the two matrices given below be multiplied? Why or why not?
8. Can the two matrices given below be multiplied? Why or why not?
9. X is a matrix of order 5 2 and Y is a matrix of order 2 4.
Is the matrix product XY defined? Is the matrix product YX defined?
10. X is a 6 2 matrix and Y is a 6 2 matrix. Is the matrix product XY defined? What is the order of the product?
11. X is a 7 5 matrix and Y is a 5 4 matrix. Is the matrix product XY defined? What is the order of the product?
12. Is the matrix product of the given matrices defined? If so, find it. If not, give reasons.
13. Is the matrix product of the given matrices defined? If so, find it. If not, give reasons.
14. Is the matrix product of the given matrices defined? If so, find it. If not, give reasons.
15. Find the value of x and y:
16. You have to prepare two bouquets out of roses, carnations and lilies.
The number of each of these flowers is shown in the matrix.
The cost of a rose is $4, cost of a carnation is $2.5 and that of a lily is $5.
If your friend is willing to split the cost of the second bouquet evenly with you, use matrix multiplication to determine how much you'll have to spend.
17. Find the determinant of the matrix.
18. Find the value of the determinant.
19. Find the determinant of the matrix.
20. Solve the system of equations using Cramer's Rule.
21. Solve the equations using Cramer's rule
5a + 7b = 35
7a - 9b = 53
22. Determine whether the system of equations has a one solution, no solution or more than one solution.
23. Write the multiplicative identity matrix of order 4 4.
24. Find the inverse of the matrix:
25. Solve the matrix equation for X.