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binary, 11110111= ?

Mathematics
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it's signed
the result has to be a decimal
in decimal it is 247

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Other answers:

it's signed bro
There are 10 types of people in this world, ones who know binary, others who don;t! ;)
yes sir it is 247
See http://numbermonk.com/binary/247/en
yup @shubhamsrg since 10 is 2 in decimal
I dont want to convert it, I need to know the steps for it, and im not a "sir" :P
am glad you got it! -_-
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
\[1+2+4+16+32+64+128\] i think will do it
there is a zero in the 8th place
:P But please show me the steps if you can I would be grateful
I know Binary... Use it's knowledge in Computer @Christos
In my statement, 10 corresponded to 2 , (in base 2) -_-
work from the right to the left
That's why rest 8 dont exist :P
ok satellite ill do it
it is negative number
first invert it
we can talk about 8 if it was base 10 , but when its base 2, talking about 8 is baseless ?
1s place 2s place 4s place 16s place 32s place 64s place 128s place
Am I forced to invert it @modphysnoob ?
I mean thats the only way?
yes, that's how you figure out negative number
u have to change 11110111 into decimal ryt?
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
thanks modphy I figured it out thanks all for the contributions :D
It is signed , Can't you people read?
invert then add one
signed by what artist?
lol
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
:D
Or use Dibble Dobble method....It Will Easier
4 Bit signed number -3 1101 -2 1110 -1 1111 0 1 0001 2 0010 3 0011
11110111 subtract one 11110110 invert 00001001 now use conversion
should give you -9
yes indeed it gave me -9 I already had the solution I just needed the steps to reproduce it with other numbers
=)
it is just subtract one and then invert
or invert and then add one right?
I think they both work , 1111 invert 0000 add one 0001 1111 subtract one 1110 invert 0001
I see
I am assuming you are in computer architecture class ?
Yea that's right :)
if it's a sign positive number I don't need to do that stuff right?
no, singed positive number would have leading number =0
ok

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