Which number is the best approximation for 5√2+2√3 ?

3.0

3.4

6.5

9.9

The number which is the best approximation for 5√2+2√3 is:

9.9

Step-by-step explanation:

We know that:

√2 = 1.414

and √3= 1.732

So, 5√2+2√3= 5×1.414+2×1.732

                     = 10.664

Hence, the number which is the best approximation for 5√2+2√3 is:

9.9