Answer:

0.0000009854 decimal is answer

(1010) base 2 its mean it is in binary and we have to convert it in decimal..

2^3 × 1+ 2^2 × 0 + 2^1 × 1 + 2^0 × 0 =8+0+2+0

= 10

(10) base 10 it is converted in decimal..

Now, decimal to binary :

211010

2 - 5 - 1..

2 - 2 - 0..

2 - 1 - 1..

From down the value is (1010) with base 2!!

Now if you will see (1010)base 2 = (10) base 10..

or (10) base 2 = (1010) base 2

now it is clearly match...

Hope it helped u ^-^