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borishaifa [10]
3 years ago
10

Compute the following without a calculator or "guessing and checking." Show all work. (a) What is 7376 mod 23? Hint: Don’t expli

citly compute 7 376 . (b) For this part, let n = 91 be the RSA modulus and e = 7 the RSA public key. i. What is the private key d? ii. Sign the message m = 4. iii. Verify that your signature from the previous part is correct.

Mathematics
1 answer:
lara31 [8.8K]3 years ago
8 0

Answer:

a. 3(mod 23)

bi d=31 (mod 72)

ii c = 4

iii m = 4

Step-by-step explanation:

Check the attached file for step by step solution

try to open the image in a new tap if the letters appear small

or if is not clear

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vladimir1956 [14]

<u>Part (a)</u>

The variable y is the dependent variable and the variable x is the independent variable.

<u>Part (b)</u>

The cost of one ticket is $1.25. Therefore, the cost of 25 tickets will be: .

Now, we know that Johnny spent his money only on ride tickets and fair admission and that he spent a total of $43.75.

Therefore, the price of the fair admission is: $43.75-$31.25=$12.5

If we use y to represent the total cost and x to represent the number of ride tickets, the linear equation that can be used to determine the cost for anyone who only pays for ride tickets and fair admission can be  written as:

y=1.25x+12.5......Equation 1

<u>Part (c)</u>

The above equation is logical because, in general, the total cost of the rides will depend upon the number of ride tickets bought and that will be 1.25x. Now, even if one does not take any rides, that is when x=0, they still will have to pay for the fair admission, and thus their total cost, y=$12.5.

Likewise, any "additional" cost will depend upon the number of ride tickets bought as already suggested. Thus, the total cost will be the sum of the total ride ticket cost and the fixed fair admission cost. Thus, the above Equation 1 is the correct representative linear equation of the question given.

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19-y because you are taking away y from 19
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Subtracting a negative number is the same as adding a positive number

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