This problem explores the use of a one-time pad version of the Vigenère cipher. In thisscheme, the key is a stream of random numbers between 0 and 26. For example, if the key is 319 5 . . . , then the first letter of plaintext is encrypted with a shift of 3 letters, the second with ashift of 19 letters, the third with a shift of 5 letters, and so on. a) Encrypt the plaintext sendmoremoney with the key stream9 0 1 7 23 15 21 14 11 11 2 8 9b) Using the ciphertext produced in part (a), find a key so that the cipher text decrypts to theplaintext cashnotneeded

Ap practice - performance task response the ap create performance task asks you to write about an abstraction that you developed and wrote into your code. most of the time that means identifying a function or procedure you wrote to "manage complexity" in your program. here is the actual prompt from the create performance task: 2d. capture and paste a program code segment that contains an abstraction you developed individually on your own (marked with a rectangle). this abstraction must integrate mathematical and logical concepts. explain how your abstraction manage the complexity of your program. (must not exceed 200 words) below is a segment of code from an "under the sea" program with a rectangle drawn around a portion of the code identifying an abstraction. imagine that you wrote this and are composing an ap response about how this abstraction manages complexity. (note: ignore the requirement that the abstraction integrate "mathematical and logical concepts" for this practice response. just write about managing complexity). explain how the abstraction marked with the rectangle in the code above manage complexity of this program. write your response here submit

Atype of researcher who uses computers to make sense of complex digital data

3. write assignment statements that perform the following operations with the variables a, b, and c: a. adds 2 to a and assigns the result to b b. multiplies b times 4 and assigns the result to a c. divides a by 3.14 and assigns the result to b