Question

3*10^-1+5*10^-3+4×10^-4

Answer 1

,,,,,,,,,,,,,,,000000

Answer 2

To add these numbers together, you need to make sure they all have the same exponent (power of 10). Let's express them with a common exponent:

3 * 10^-1 + 5 * 10^-3 + 4 * 10^-4

First, let's express all of them with a common exponent of -3 (the smallest exponent in the list):

3 * 10^-1 = 3 * (10^-1 / 10^-3) = 3 * 10^2 5 * 10^-3 = 5 * 10^-3 4 * 10^-4 = 4 * (10^-4 / 10^-3) = 4 * 10^-1

Now, they all have the same exponent (-3), so you can add them together:

3 * 10^2 + 5 * 10^-3 + 4 * 10^-1

Now, you can add these numbers:

3 * 100 + 5 * 0.001 + 4 * 0.1

300 + 0.005 + 0.4

Finally, add these numbers together:

300 + 0.005 + 0.4 = 300.405

So, the result is 300.405.