Chapter 4 - Exercises - Page 217: 5a

$-49$

The first bit is 1 hence the number is negative. The magnitude bits are $000110001$. We convert magnitude to decimal: $000110001=0\cdot 2^8+0\cdot 2^7+0\cdot 2^6+1\cdot 2^5+1\cdot 2^4+0\cdot 2^3+0\cdot 2^2+0\cdot 2^1+1\cdot 2^0=49$ Apply sign: $-49$