PLEASE HELP! Which of the following statements best shows the relationship between radio frequency and wireless communication? (Select all that apply).

Both involve transmitting data through a series of satellites.
Both involve transmitting data through radio signals.
Both incorporate the use of direct (or DC) current to send a signal.
Both incorporate the use of antennae to receive signals.

Assume the existence of a bankaccount class. define a derived class, savingsaccount that contains two instance variables: the first a double, named interestrate, and the second an integer named interesttype. the value of the interesttype variable can be 1 for simple interest and 2 for compound interest. there is also a constructor that accepts two parameters: a double that is used to initialize the interestrate variable, and a string that you may assume will contain either "simple", or "compound", and which should be used to initialize the interesttype variable appropriately. there should also be a pair of functions getinterestrate and getinteresttype that return the values of the corresponding data members (as double and int respectively).

Which option correctly describes a dbms application? a. software used to manage databases b. software used to organize files and folders c. software used to develop specialized images d. software used to create effective presentations

What is the original authority for copyright laws