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..?

A

clear to see if you make all numbers 10^-6

Hmm. Not sure whether your exponents are positive or negative. Use ^ to indicate exponent. Not sure whether you used - instead, or just forgot the ^. If positive exponents, then convert all to 10^6 and the answer is (B).

To determine which expression represents the largest number, we need to compare the values of the numbers with their respective exponents.

Let's break down each option:

A. 40.1 x 10^–6 = 0.0401 (the decimal point moves to the left)
B. 4.1 x 10^–7 = 0.00000041 (the decimal point moves to the left)
C. 0.411 x 10^–7 = 0.0000000411 (the decimal point moves to the left)
D. 0.04001 x 10^–5 = 0.0000004001 (the decimal point moves to the left)

Based on these calculations, we can see that the largest number is option A, which equals 0.0401. Therefore, A is the correct answer, not B.