Round 87.8404824053 to 4 decimal places.

87.8405

Step-by-step explanation:

Given  :  87.8404824053

To find : Round to 4 decimal places.

Solution : We have given

87.8404824053 .

We need to round it to 4 decimal place.

Identify the 5th digit after decimal It is 8.

It is greater than 5 so the number should be rounded up 4th digit increased by 1 and other terms become zero,

87.8405

Therefore, 87.8405

step-by-step explanation:

x =±sqrt(1/3)

step-by-step explanation:

x+4/6x=1/x

multiply each side by 6x to get rid of the fractions

6x*(x+4/6x)=1/x*6x

distribute

6x^2 +4 = 6

subtract 4 from each side

6x^2 +4-4 = 6-4

6x^2 =2

divide by 6

6x^2/6 = 2/6

x^2 = 1/3

take the square root of each side

sqrt(x^2) = ±sqrt(1/3)

x =±sqrt(1/3)