When we encode a message, we are known as a message _______________

The best choice of filter for removing just the frequencies of a 60 Hz hum from a recording would be a:

a. notch filter. b. high-pass filter. c. low-pass filter. d. band-pass filter.

Which of the following is an example of autocratic leadership?

A. Maria takes control of her book club, decides how the meetings proceed, and chooses all of the books the club will read. B. Mark leads his local running club. He makes sure member opinions are heard, counts everyone's vote equally, and enforces the desires of the majority. C. Vasily is the leader of his local parent-teacher association. He directs meetings, counts everyone's votes equally, and abides by the decisions of the majority. D. Ali is the leader of his neighborhood watch, but unless a problem arises, he leaves it up to the other members to keep to the watch schedule and patrol the neighborhood.