Răspuns:
Explicație pas cu pas:
[tex]a) 1111_{(2)} =1\cdot2^{3} +1\cdot2^{2} +1\cdot2^{1} +1\cdot2^{0} = 8+4+2+1=15_{(10)}[/tex]
[tex]b) 10001_{(2)} =1\cdot2^{4} +0\cdot2^{3} +0\cdot2^{2} +0\cdot2^{1} +1\cdot2^{0} = 16 +0+0+0+1=17_{(10)}[/tex]
[tex]c) 101011_{(2)} =1\cdot2^{5}+ 0\cdot2^{4} +1\cdot2^{3} +0\cdot2^{2} +1\cdot2^{1} +1\cdot2^{0} = 32 +0+8 +0+2+1=43_{(10)}[/tex]
[tex]d) 11111101_{(2)} =1\cdot2^{7}+1\cdot2^{6}+ 1\cdot2^{5}+ 1\cdot2^{4} +1\cdot2^{3} +1\cdot2^{2} +0\cdot2^{1} +1\cdot2^{0} = \\ =128+64+32+16+8+4+0+1=253_{(10)}[/tex]
