Aeight-digit code is used to distinguish between different regions. the code uses numbers between 1 and 9, inclusive. a. how many different codes are available for use? (assume that any eight-digit number can be used as a code.) b. the first three digits of a code for a particular region are 113. if no other region has these first three digits as part of its code, how many codes can exist in this region?

An npn transistor is correctly biased and turned on if the a. base is negative. b. collector is negative. c. collector is positive with respect to the emitter and negative with respect to the base. d. collector is the most positive lead followed by the base.

Acommon algorithm for converting a decimal number to binary is to repeatedly divide the decimal number by 2 and save the remainder. this division is continued until the result is zero. then, each of the remainders that have been saved are used to construct the binary number. write a recursive java method that implements this algorithm. it will accept a value of int and return a string with the appropriate binary character representation of the decimal number. my code: public class lab16{public string converttobinary(int input){int a; if(input > 0){a = input % 2; return (converttobinary(input / 2) + "" +a); } return ""; } }

What phrase indicates someone has knowledge and understanding of computer, internet, mobile devices and related technologies?