Question

b) B= \(\dfrac{1}{10}\).\(\dfrac{4}{11}\)+\(\dfrac{1}{10}\).\(\dfrac{8}{11}\)-\(\dfrac{1}{10}\).\(\dfrac{1}{11}\)

Answer 1

`1/10 . 4/11 + 1/10 . 8/11 - 1/10 . 1/11`

`= 1/10 . ( 4/11 + 8/11 - 1/11)`

`= 1/10 . 11/11`

`= 1/10 . 1`

`=1/10`

`@ yl`

Answer 2

\(B=\dfrac{1}{10}\times\dfrac{4}{11}+\dfrac{1}{10}\times\dfrac{8}{11}-\dfrac{1}{10}\times\dfrac{1}{11}\\ B=\dfrac{1}{10}\times\left(\dfrac{4}{11}+\dfrac{8}{11}-\dfrac{1}{11}\right)\\ B=\dfrac{1}{10}\times1\\ B=\dfrac{1}{10}\)