Round this to two sig figs: 4025000

Is the correct answer 4.0 x 10^6?

Go to the head of the class.

What do you mean?

Yes, you are right.

To round a number to two significant figures, you only consider the first two non-zero digits from the left. In the given number, 4025000, the first two non-zero digits are 4 and 0.

To determine how to round the number, we look at the next digit after the second significant figure. In this case, the next digit is 2. If it is 5 or greater, we round up. If it is less than 5, we round down. In this case, the next digit is 2, which is less than 5.

Therefore, we round down. The number 4025000 rounded to two significant figures is 4.0 x 10^6. So, your answer is correct.