Evaluate. Express your answer in scientific notation.

4.7 × 106 - 3.7 × 105

1 answer

To evaluate the given expression, we will subtract the two numbers:

4.7 × 10^6 - 3.7 × 10^5

To subtract these numbers, we need to have the same exponent for both. We can achieve this by converting 3.7 × 10^5 to scientific notation:

3.7 × 10^5 = 0.37 × 10^6

Now we can subtract:

4.7 × 10^6 - 0.37 × 10^6 = (4.7 - 0.37) × 10^6 = 4.33 × 10^6

Therefore, the value of the expression is 4.33 × 10^6.