Answer:
37
Step-by-step explanation:
Let's use the rule GEMDAS (Grouping, Exponents, Multiply, Divide, Add, Subtract) from left to right. Therefore, we will simplify the equation in the parentheses.
. -(-7) creates a double negative, deeming the 7 positive, because when there is two negatives the number will turn into a positive.
= 49, -3 x 4= -12. Therefore the final form of the equation will be 49 - 12 = 37.
Let me know if there are mistakes.
Your answer is 6
Explanation so
L=15
W=4
D=2
15x4=60
60x2=120
Then you use 120divide it by 20 (per hour) and your answer is 6hours
C or 750,000 because lol thats just what it is, you can look it up
The answer of the above diagram is A.
hope it helps☺
Answer:
The value of φ(n) is 6720, while the value of d is 6413 and the Encrypted message is C=3984 while the decrypted one is M=8720.
Step-by-step explanation:
p is given as 71
q is given as 97
so n is
![n=pq=71\times 97=6887](https://tex.z-dn.net/?f=n%3Dpq%3D71%5Ctimes%2097%3D6887)
Now the φ(n) is given as
![\phi(n)=(p-1)(q-1)=(71-1)(97-1)=(70)(96)=6720](https://tex.z-dn.net/?f=%5Cphi%28n%29%3D%28p-1%29%28q-1%29%3D%2871-1%29%2897-1%29%3D%2870%29%2896%29%3D6720)
So the value of φ(n) is 6720.
Now
![ed=1 mod \phi(n)](https://tex.z-dn.net/?f=ed%3D1%20mod%20%20%5Cphi%28n%29)
As e is 197 so
![ed=1 mod \phi(n)\\d=(1 mod 6720)/197\\d=6413](https://tex.z-dn.net/?f=ed%3D1%20mod%20%20%5Cphi%28n%29%5C%5Cd%3D%281%20mod%20%206720%29%2F197%5C%5Cd%3D6413)
The value of d is 6413.
m=8720 so the Encryption is given as
![C=m^e mod n\\C=8720^{197} mod 6887\\C=3984](https://tex.z-dn.net/?f=C%3Dm%5Ee%20mod%20n%5C%5CC%3D8720%5E%7B197%7D%20mod%206887%5C%5CC%3D3984)
Now the decryption is
![M=c^d mod\, n\\M=3984^{6413} mod \, 6887\\M=8720](https://tex.z-dn.net/?f=M%3Dc%5Ed%20mod%5C%2C%20n%5C%5CM%3D3984%5E%7B6413%7D%20mod%20%5C%2C%206887%5C%5CM%3D8720)
So the Encrypted message is C=3984 while the decrypted one is M=8720.