9. (Opts) Add the two binary numbers 1101110 1111000 = show all sum and carry bits 10. (5pts) The sum bit S in a half-adder is the output of the a. NOT _logic gate. b. XOR c. OR d. AND 11. (pts) Convert hexadecimal OXCAFE to octal (base 8). Show all calculations and any intermediate results. 12. (7pts) Subtract the two binary numbers 11101011 - 01011100 = show all difference and borrow bits 13. (5pts) To use a 3 input AND gate as a 2 input AND gate a. connect one input to Yes b.connect one input to GND C. connect any two inputs together d.connect the output to GND c 14. (5pts) The inhibit AND gate is a. an AND gate with one input negated b.an AND gate with the output negated c. an AND gate with both inputs negated d. an AND gate with one input tied to Vse