S=t2−12t+35
use interval notation to indicate when the particle is moving in the positive direction. (if the particle is never moving in the positive direction, enter "{}" without the quotation marks.)

180

step-by-step explanation:

12-2=10

20-2=18

18x10=180

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)