Which expression represents the largest number?

A.)40.1 x 10^–6
B.)4.1 x 10^–7
C.)0.411 x 10^–7
D.)0.04001 x 10^–5

I think it is B.
Thank you.

To determine which expression represents the largest number, we need to compare and analyze the given expressions.

First, let's rewrite all the expressions in standard form:

A.) 40.1 x 10^–6 = 0.0000401
B.) 4.1 x 10^–7 = 0.00000041
C.) 0.411 x 10^–7 = 0.0000000411
D.) 0.04001 x 10^–5 = 0.0000004001

Now, we can compare the decimal values of each expression. The expression with the largest decimal value represents the largest number.

Comparing the decimal values, we can see that:

0.0000401 > 0.0000004001 > 0.0000000411 > 0.00000041

Therefore, the expression D.) 0.04001 x 10^–5 represents the largest number.

Hence, the correct answer is D.

You're welcome! Let me know if there's anything else I can help you with.