What is 2/3 as a decimal rounded to 3 significant figures

0.667.

Step-by-step explanation:

Dividing 2.000000 by 3:

 3 ) 2.0000000 ( 0.6666   <--- quotient

      18

        20

        18

          20

          18

           20

            18

We stop at the fourth place of decimals.

0.667

Step-by-step explanation:

2/3

Rounded to 3 significant figures

Rounding up to a significant figure means, you limit the number to have only 3 significant digit only, which means 0 would not be counted, because it is insignificant.

In rounding up numbers, number 1 to 4 is rounded up to 0, while numbers 5 to 9 are rounded up to 1. Starting exactly after the figure of concern.

2/3 equals 0.666666666666recurring

Rounded up to 3 significant figures, let's have four significant figures first

0.6666

The fourth significant figure is 6, rounding it up gives 1. Then 1 will be added to the third significant figure

0.667

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

step-by-step explanation:

if you want to solve percent error follow these steps.

1. subtract the accepted value from the experimental value.

2. take the absolute value of step 1.

3. divide that answer by the accepted value.

4. multiply that answer by 100 and add the % symbol to express the answer as a percentage.

if you want to solve percent of change just do this.

1. work out the difference (increase) between the two numbers you are comparing.

2. divide the increase by the original number and multiply the answer by 100. if your answer is a negative number then this is a percentage decrease.

hope this : )