82.453 in 3 significant figures with scientific notation.
~hm..I don't know how to do this...it sounds simple but I'm confused.
Help please =)
To three s.f. it is 82.4 (the next number is 5 and I round to the "even" number which is 4. If the number was 82.553 I would make it 82.6.
82.4 in scientific notation is
8.24 x 10^1
Thanks Dr.Bob =)
To express 82.453 in 3 significant figures with scientific notation, follow these steps:
Step 1: Identify the first non-zero digit from the left. In this case, it is 8.
Step 2: Count the number of digits between the first non-zero digit and the decimal point (or the end of the number if there is no decimal point). In this case, there are 3 digits.
Step 3: Write down the first non-zero digit followed by a decimal point and the remaining digits (keeping only the significant figures). In this case, the number is 8.2453.
Step 4: Multiply the number obtained in step 3 by 10 raised to the power equal to the number of digits counted in step 2 but with a negative sign. In this case, the power will be -3 (since there are 3 digits between the first non-zero digit and the decimal point).
So, 82.453 in 3 significant figures with scientific notation is written as 8.2453 × 10^1.
No worries! I can definitely help you out with that.
When expressing a number in scientific notation, we typically write it in the form of "a × 10^b", where "a" is a number between 1 and 10 (known as the coefficient), and "b" is an integer representing the power of 10.
To express the number 82.453 in scientific notation with 3 significant figures, we need to determine the coefficient and exponent:
Step 1: Identify the first non-zero digit (significance):
In this case, the first non-zero digit is "8". So, our significance is 8.
Step 2: Determine the coefficient:
To round the number to 3 significant figures, we need to keep the first three significant figures and remove any remaining digits. Therefore, the coefficient will be 82.4 (rounding to one decimal place).
Step 3: Count the number of decimal places between the first non-zero digit and the coefficient:
In this case, we have 82.4. There are no decimal places. So, the exponent is 0.
Now, we can express 82.453 in scientific notation with 3 significant figures:
82.453 ≈ 8.24 x 10^0