Which of the following is TRUE about Bluetooth?

a. If a computer or device is not Bluetooth-enabled, you must replace it in order to use Bluetooth.
b. Bluetooth connections have high security risks.
c. If a device has Bluetooth capability, using Bluetooth technology is free.
d. Bluetooth has high bandwidth.

Why should characters such as / \ " ' * ; - ? [ ] ( ) ~ ! $ { } < > # @ & | space, tab, and newline be avoided in file names?

4.9: population write a program that will predict the size of a population of organisms. the program should ask the user for the starting number of organisms, their average daily population increase (as a percentage, expressed as a fraction in decimal form: for example 0.052 would mean a 5.2% increase each day), and the number of days they will multiply. a loop should display the size of the population for each day. prompts, output labels and messages. the three input data should be prompted for with the following prompts: "enter the starting number organisms: ", "enter the daily increase: ", and "enter the number of days the organisms will multiply: " respectively. after the input has been read in successfully, a table is produced, for example: 2 300.0 4 675.0 under the heading is a line of 29 dashes followed by one line for each day, showing the day number and the population at the beginning of that day. input validation. do not accept a number less than 2 for the starting size of the population. if the user fails to satisfy this print a line with this message "invalid. must be at least 2. re-enter: " and try to read the value. similarly, do not accept a negative number for average daily population increase, using the message "invalid. enter a non-negative number: " and retrying. finally, do not accept a number less than 1 for the number of days they will multiply and use the message "invalid. enter 1 or more: ".

Acompany wants to inform a select list of it's regular customers about a flash sale. which type of platform will it use to send the information and how ? the company can use (email , letter, instant messaging ,) to inform it's customers . the email recipient addresses can be selected using (mail merge , compose , forward