What is the purpose of concatenation? To combine two variable names in order to form a string
To combine two or more strings into one big string
To pull out a group of characters from a string
To pull out one specific character from a string

Write a function called checkfactor that takes two arrays of positive numbers, firstnumberrow and secondnumberrow. checkfactor checks if the first entry in firstnumberrow is divisible by the first entry in secondnumberrow, and performs the same operation on the next array elements until all entries have been checked. all the numbers are positive and the number of entries in the arrays are the same. the function should return the identified divisible numbers in two row arrays named firstdivisible and seconddivisible.restrictions: branches or loops should not be used. the code must use the internal mod and logical functions.hint: the mod function should be used to determine if two numbers are divisible. ex: for num1 and num2 if mod(num1,num2) is 0, then the two numbers are divisible.this is matlab

Explain how email technologies enable the exchange of messages between users. find out the typical parts of an email address and explain each part.

Every telecommunication setup uses two devices: one device to transmit data and one device to receive data. which device transmits frequencies to mobile phones? towers transmit frequencies to mobile phones.