8.4 x 106
Basically, since this is all on the left side of the decimal point, you take the first 2 digits, round them (need to look at the 3rd digit '9' for rounding), then you set the 10n exponent , where n is the number of decimal places it takes to get from the shortened number to the original number (rounded)
272.0 rounds to 270
To round 0.009999991 to two significant figures, you first identify the first two significant digits, which are 0.0099. Since the third significant digit is a 9, you round up, resulting in 0.010. Therefore, expressed with two significant figures, 0.009999991 rounds to 0.010.
To express 62.83 to two significant figures, you round it to the nearest value that retains the two most important digits. The first two significant digits are 6 and 2, so rounded, 62.83 becomes 63. Therefore, 62.83 to two significant figures is 63.
It is: 3.4 because .01 is less than .05
The measurement 1045 L rounded to two significant digits is 1000 L. When rounding, the first two significant digits are "10," and since the next digit (4) is less than 5, we do not round up. Therefore, the result is 1000 L.
272.0 rounds to 270
1.0 x 10^4
To round 0.009999991 to two significant figures, you first identify the first two significant digits, which are 0.0099. Since the third significant digit is a 9, you round up, resulting in 0.010. Therefore, expressed with two significant figures, 0.009999991 rounds to 0.010.
To express 62.83 to two significant figures, you round it to the nearest value that retains the two most important digits. The first two significant digits are 6 and 2, so rounded, 62.83 becomes 63. Therefore, 62.83 to two significant figures is 63.
It is: 3.4 because .01 is less than .05
To round 296124 to two significant figures, we focus on the first two digits, which are 29. The next digit is 6, which is greater than 5, so we round up. Therefore, 296124 rounded to two significant figures is 300000.
You can just round it off. For example, if your number is 8.38572998472654400131... that is equal to approximately 8.4 (if two significant digits is enough for your purposes) or 8.39 (if you prefer 3 significant digits).
1) Look at the two numbers you are multiplying 2) Find both their number of significant digits 3) Multiply both numbers together normally 4) Round your answer to the same number of significant digits of the least number in the first two factors 250 x 185 250 had 2 sig. digits------ 185 has 3 sig. digits 250 has the least number of sig. digits (2) Final answer has to have 2 sig. digits Normal answer: 46250 With rounding of sig. digits: 46000
It has two significant digits.
No, it has 3 significant digits.
Any measurement may have two significant digits.
When using significant digits, the product has only the number of significant digits as the lowest number in the factors. "20" has two significant digits and "310" has three. Therefore, the product has to have two significant digits. 310 × 20 = 6200 6200 already has two significant digits.