please show work

1. Represent the decimal number 48 in 8-bit binary number using the following representation methods:

a) Ones complement

b) Excess-M

2. Represent the decimal number -46 in 8-bit binary number using the following representation methods:

a) Twos complement

b) Signed-magnitude

c) Ones complement

3. What decimal value does the 8-bit binary number 10100010 have if:

a) it is on a computer using signed-magnitude representation?

b) it is on a computer using twos complement representation?

c) it is on a computer using excess-M representation?