Calculate 6.25 x 10^6 - 4.73 x 10^6. Express your answer in scientific notation to 2 decimal places
6.25 x 10^6 - 4.73 x 10^6 = 1.52 x 10^6
To subtract numbers in scientific notation, the exponents must be equal. Therefore, we need to adjust the second number so that the exponents match.
Given:
6.25 x 10^6 - 4.73 x 10^6
To adjust the second number, we can rewrite it as:
4.73 x 10^6 = 0.473 x 10^7
Now that the exponents match, we can simply subtract the coefficients:
6.25 x 10^6 - 0.473 x 10^7 = 5.777 x 10^6
Therefore, the answer is 5.777 x 10^6 in scientific notation to 2 decimal places.
To calculate the expression 6.25 x 10^6 - 4.73 x 10^6, we first subtract the coefficients (6.25 - 4.73) to get 1.52.
Next, we subtract the exponents (6 - 6) which gives us 10^0 or just 1.
Putting it all together, we have 1.52 x 10^0.
However, to express our answer in scientific notation with 2 decimal places, we need to move the decimal point two places to the right, which gives us 152.
Therefore, the final answer, expressed in scientific notation to 2 decimal places, is 1.52 x 10^2.