The following box plot shows the number of years during which 40 schools have participated in an interschool swimming meet:

At least how many schools have participated for more than 1 year and less than 6 years?

20 schools

Step-by-step explanation:

i belive those are the ones that are under 90 degreese.

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)