Calculate 4.8 x 10^-3 - 9.4 x 10^-6. Express the answer in scientific notation rounding to 2 decimal places
To subtract numbers in scientific notation, the exponents must be the same. To achieve this, we need to convert 4.8 x 10^-3 and 9.4 x 10^-6 to have the same exponent.
4.8 x 10^-3 = 0.0048 x 10^0 (dividing the exponent by 3)
9.4 x 10^-6 = 0.0094 x 10^0 (dividing the exponent by 6)
Now that they have the same exponent, we can subtract them:
0.0048 x 10^0 - 0.0094 x 10^0 = (0.0048 - 0.0094) x 10^0
0.0048 - 0.0094 = -0.0046
Therefore, the answer is -0.0046 x 10^0.
To express the answer in scientific notation rounded to 2 decimal places, we need to move the decimal point in -0.0046 two places to the right.
-0.0046 x 10^0 = -0.46 x 10^-2
Rounding to 2 decimal places, the answer is approximately -0.46 x 10^-2.
To calculate 4.8 x 10^-3 - 9.4 x 10^-6, we need to first adjust the exponents of the numbers to be subtracted.
Since 4.8 x 10^-3 and 9.4 x 10^-6 have different exponents, we need to adjust one of them. We can do this by converting 9.4 x 10^-6 to the same exponent as 4.8 x 10^-3:
9.4 x 10^-6 = 0.0094 x 10^-3
Now we can subtract the two numbers:
4.8 x 10^-3 - 0.0094 x 10^-3
= (4.8 - 0.0094) x 10^-3
= 4.7906 x 10^-3
To express the answer in scientific notation rounding to 2 decimal places, we would round 4.7906 to 4.79. Therefore, the final answer is:
4.79 x 10^-3
To calculate 4.8 x 10^-3 - 9.4 x 10^-6, we can follow these steps:
Step 1: Rewrite both numbers in scientific notation.
4.8 x 10^-3 becomes 0.0048 x 10^0
9.4 x 10^-6 becomes 0.0000094 x 10^0
Step 2: Subtract the two numbers.
0.0048 x 10^0 - 0.0000094 x 10^0 = 0.0047906 x 10^0
Step 3: Express the result in scientific notation.
Since the result is already in scientific notation, we don't need to do anything further.
Step 4: Round the answer to 2 decimal places.
Since the number is 0.0047906 x 10^0, we round it to 0.00 x 10^0.
Therefore, the final answer in scientific notation rounded to 2 decimal places is 0.00 x 10^0.