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.

Step-by-step explanation:

Since we have given that

$-14\dfrac{1}{9}\times -2\dfrac{9}{10}$

We first round off the elements one by one :

$14\dfrac{1}{9}\\\\=14+0.11\\\\=14.11\\\\\approx 14$

Similarly,

$2\dfrac{9}{10}\\\\=2+0.9\\\\=2.9\\\\\approx 3$

So, Best estimate would be

$-14\times -3\\\\=42$

Hence, Option 'D' is correct.