Question

Which is the best estimate of -14 1/9 (-2 9/10)

A- (-42)
B-(-28)
C-28
D-42

Answer 1

D), I believe it is -42. Correct me if im wrong :}

Answer 2

Answer: Option 'D' is correct.

Explanation:

Since we have given that

`-14(1)/(9)* -2(9)/(10)`

We first round off the elements one by one :

`14(1)/(9)\\\\=14+0.11\\\\=14.11\\\\\approx 14`

Similarly,

`2(9)/(10)\\\\=2+0.9\\\\=2.9\\\\\approx 3`

So, Best estimate would be

`-14* -3\\\\=42`

Hence, Option 'D' is correct.