add 2.56 x 10^-2 + 4.13 x 10^-2 in scientific notation

Answer 1

To add 2.56 x 10^-2 and 4.13 x 10^-2 in scientific notation, we first need to make sure that the exponents are the same.

Now, let's add the two numbers:

2.56 x 10^-2 + 4.13 x 10^-2 = (2.56 + 4.13) x 10^-2

Adding the numbers gives us:

6.69 x 10^-2

Therefore, 2.56 x 10^-2 + 4.13 x 10^-2 in scientific notation is 6.69 x 10^-2.