Write a while loop that asks someone their age and makes sure they enter a positive number. If they enter a number less than or equal to 0, they are prompted to input an appropriate number.

3. bob is arguing that if you use output feedback (ofb) mode twice in a row to encrypt a long message, m, using the same key each time, it will be more secure. explain why bob is wrong, no matter what encryption algorithm he is using for block encryption (15 points).

You have inserted new slides based on a word outline. how do you format these new slides to match the powerpoint presentation formatting? a. select all slides in the presentation and click format on the home tab. b. select the new slides and click reset on the home tab. c. select all slides in the presentation and click reset on the home tab. d. select the new slides and click format on the home tab.

Which statistical function in a spreadsheet you to see how far each number varies, on average, from the average value of the list?