Answer to Question #137426 in Discrete Mathematics for Raziya Sultana

Question #137426

Each of the following numbers represents a signed decimal number in the 2’s complement system. Determine the decimal value in each case
 10011001
 11101
 01111011

Expert's answer

10011001 = -(1 + 8 + 16) = -25

11101= -(8+4+1) = -13

01111011 = 1+2+8+16+32+64 = 123

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