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Need help with a math question.?
To express 2010 in base 2, we use exactly 8 ones and 3 zeros. Find the next two integers in base 2 that use the same number of ones and zeros.
2 Answers
- kelseyLv 71 decade agoFavorite Answer
I used this site to help
http://fclass.vaniercollege.qc.ca/web/mathematics/...
2010 in base 2 is 11111011010
I entered numbers into the calculator at the above site until I got the next 2 numbers
2012=11111011100
2019=11111100011
- 1 decade ago
First figure out what 2010 is in binary notation. They tell you there are 11 digits
remember 2^11= 2048 2^10 = 1024 2^9 =512 2^8 =256 2^7 =128 2^6 =64 ...
2010 is 2048 which in binary is 100,000,000,000 (12 digits) and the question tells us there are 11 digits
so
10 9 8 7 6 5 4 3 2 1 0
1024 512 256 128 64 32 16 8 4 2 1
1 1 1 1 1 1 1 1 1 1 1 = 2047 or 2^12-1 = 2048-1
2047-2010 = 37 = 32+4+1 so 2010 is 11,111,011,010 i,e, remove the 32,4 and 1 digit
Add 1 to the binary number ....010
The next 7 numbers are
11,111,011,011
11,111,011,100 3 zeros = 2012
11,111,011,101
11,111,011,110
11,111,011,111
11,111,100,000
11,111,100,001
11,111,100,010
11,111,100,011 3 zeros = 2019
Checking a)
11,111,011,111 = 2047-32=2015 = 2010 +5 YES!!!
Checking b)
start with low numbers
1=001
2=010 We started here so the numbers below are the rest of the sequence
3=011
4=100
5=101
6=110
7=111
then a big jump