What is the sum of 5.3 x 10^5 and 3.8x 10^4 in scientific notation?

wrong yet again. you need like exponents to add.

5.3 x 10^5 + 3.8x 10^4 = 53x10^4 + 3.8x10^4 = 56.8x10^4
or
5.3 x 10^5 + 3.8x 10^4 = 5.3x10^5 + 0.38x10^5 = 5.68x10^5

Apologies for the mistake. You are correct.

To add numbers in scientific notation, the exponents must be the same. In this case, we can rewrite 3.8x 10^4 as 0.38x10^5 to make the exponents match.

Now, we can add the numbers:

(5.3 x 10^5) + (0.38 x 10^5) = (5.3 + 0.38) x 10^5 = 5.68 x 10^5.

So, the sum is 5.68 x 10^5.

To find the sum of 5.3 x 10^5 and 3.8 x 10^4 in scientific notation, you need to first make sure that the exponents are the same.

Step 1: Rewrite the numbers with the same exponent:
5.3 x 10^5 = 53 x 10^4
3.8 x 10^4 = 3.8 x 10^4

Now the exponents are the same, so we can perform the addition.

Step 2: Add the coefficients:
53 + 3.8 = 56.8

Step 3: Keep the common exponent:
The common exponent is 10^4.

Therefore, the sum of 5.3 x 10^5 and 3.8 x 10^4 in scientific notation is 56.8 x 10^4.

To add numbers in scientific notation, the exponents must be the same. Therefore, we need to rewrite 3.8x 10^4 in scientific notation by moving the decimal point one place to the right: 3.8x 10^4 = 3.8 x 10^5.

Now that the exponents are the same, we can add the numbers:

(5.3 x 10^5) + (3.8 x 10^5) = (5.3 + 3.8) x 10^5 = 9.1 x 10^5.

So the sum is 9.1 x 10^5.