binary, 11110111= ?

- Christos

binary, 11110111= ?

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- Christos

it's signed

- Christos

the result has to be a decimal

- anonymous

in decimal it is 247

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## More answers

- Christos

it's signed bro

- shubhamsrg

There are 10 types of people in this world, ones who know binary, others who don;t! ;)

- anonymous

yes sir it is 247

- goformit100

See http://numbermonk.com/binary/247/en

- anonymous

yup @shubhamsrg since 10 is 2 in decimal

- Christos

I dont want to convert it, I need to know the steps for it, and im not a "sir" :P

- shubhamsrg

am glad you got it! -_-

- goformit100

Yo Yo @shubhamsrg

- Christos

There are 10 types of people in this world, ones who know binary, others who don;t, rest 8 doesn't exist in this world

- anonymous

\[1+2+4+16+32+64+128\] i think will do it

- anonymous

there is a zero in the 8th place

- Christos

:P But please show me the steps if you can I would be grateful

- goformit100

I know Binary... Use it's knowledge in Computer @Christos

- shubhamsrg

In my statement, 10 corresponded to 2 , (in base 2) -_-

- anonymous

work from the right to the left

- Christos

That's why rest 8 dont exist :P

- Christos

ok satellite ill do it

- anonymous

it is negative number

- anonymous

first invert it

- shubhamsrg

we can talk about 8 if it was base 10 , but when its base 2, talking about 8 is baseless ?

- anonymous

1s place 2s place 4s place 16s place 32s place 64s place 128s place

- Christos

Am I forced to invert it @modphysnoob ?

- Christos

I mean thats the only way?

- anonymous

yes, that's how you figure out negative number

- anonymous

u have to change 11110111 into decimal ryt?

- anonymous

@Christos

- anonymous

11110111 1 in the ones place 1 in the twos place 1 in the fours place 0 in the eights place 1 in the sixteens place 1 in the thirty twos place 1 in the sixty fours place 1 in the one hundred twenty eights place

- Christos

thanks modphy I figured it out thanks all for the contributions :D

- anonymous

It is signed , Can't you people read?

- anonymous

invert then add one

- anonymous

signed by what artist?

- Christos

lol

- anonymous

11110111 (2) = 1*2^7+1*2^6+1*2^5+1*2^4+0*2^3+1*2^2+1*2^1+1*2^0

- Christos

:D

- anonymous

Or use Dibble Dobble method....It Will Easier

- anonymous

4 Bit signed number -3 1101 -2 1110 -1 1111 0 1 0001 2 0010 3 0011

- anonymous

11110111 subtract one 11110110 invert 00001001 now use conversion

- anonymous

should give you -9

- Christos

yes indeed it gave me -9 I already had the solution I just needed the steps to reproduce it with other numbers

- Christos

=)

- anonymous

it is just subtract one and then invert

- Christos

or invert and then add one right?

- anonymous

I think they both work , 1111 invert 0000 add one 0001 1111 subtract one 1110 invert 0001

- Christos

I see

- anonymous

I am assuming you are in computer architecture class ?

- Christos

Yea that's right :)

- Christos

if it's a sign positive number I don't need to do that stuff right?

- anonymous

no, singed positive number would have leading number =0

- Christos

ok

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