Answer:
Explanation:
18.766
Significant figures are the number of digits in a value, often a measurement, that contribute to the degree of accuracy of the value. We start counting significant figures at the first non-zero digit.
But in this case we don't have a zero, they are non zero case
Then,
18.766 to 2s.f
The two significant number is 1 and 8
Therefore the to 2s.f=18
But the number after the 8 which is 7 is greater than 4, and when this happens we will add one to the preceding number which is it 8 and this becomes 9.
So, to two significant figure, the answer is 19.
2s.f=19