The following cryptogram has been received: ECGUCTUJKHV The encryption algorithm is as follows. Let x1, x2 be the roots of the polynomial x 2 + 3x + 1. Each letter of the plaintext is replaced with its position in the English alphabet (A is 1 and Z is 26). Then to every number the value of the polynomial f(x) = x 6 + 3x 5+ x 4 +x 3 + 4x 2 + 4x+ 3 either at x1 or at x2 is added. After that the numbers obtained are replaced with letters. Recover the plaintext. (Moral of the story: Repeating complex steps may lead to a very trivial cipher.)

Jenny wants to look at row 345 and compare it to row 17. what can she do if she wanted to easily adjust to see both at once?

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

A911 dispatcher is the sole sender of messages to all police officers. while on patrol, officers communicate with the dispatcher who, in turn, relays messages to other officers. the officers do not communicate directly with one another. this illustrates a network.