A pyramid with aA CD is being used to store music. Each minute’s worth of recording takes up 12 megabytes. a) The CD contains nine tracks which are the following length (in minutes): 3, 5, 6, 4, 5, 2, 7, 8, 8. How much memory would these nine tracks occupy on the CD?

b) If the CD was downloaded to a computer and then all the tracks were put through an MP3 compression algorithm, how much memory would the nine tracks now occupy (you may assume a 90 per cent file reduction size)?

c) Find the average size of each of the MP3 tracks, and then estimate how many MP3 files could be stored on an 800 megabyte CD. base shape of hexagon's length of each sloping edges is 24cm and

Ihave a music player on my phone. i can buy songs, add them to playlists and play them. obviously it would be redundant to store each song in each playlist; each playlist is just a list of pointers to the songs. for this lab you will simulate this behavior. your program will need to have options to: add songs to the system library (you will store the text of the first line of the song, rather than the audio) add playlists add songs to a playlist list playlists play a playlist list all of the songs in the library with a count of how many times each song has been played remove a song from a playlist remove a playlist remove a song from the library (and thus from all playlists that contain it) note that we will not be checking many error cases. in real programming this would be bad, you should usually try to recognize and respond to as many types of errors as you can. in the context of class we are trying to acquaint you with as many concepts as possible, so for the sake of educational efficiency we will not be checking most errors in this lab, you may assume that your user provides correct input. you may add all appropriate error testing if you wish, but we will not be testing for it.

How does a policy manual an organization? a. it boost productivity. b. it create awareness in employees about the organization’s values. c. it employees achieve targets. d. it safeguards the organization from liabilities.

You receive an email from an impressive-sounding stranger, professor alexander rothschild renard iii, president of the american institute for scientific political statesmen. he urges you to vote for his presidential candidate choice. this social media red flag is known as