Mark, carlos, ben, and taj ran the 1,600-meter relay today at the track meet. if their times were 55.2 seconds, 54.34 seconds, 55.15 seconds, and 52.08 seconds, what was their total time for the race (in seconds)?

a. 216.77 seconds
b. 206.67 seconds
c. 167.09 seconds
d. 217.49 seconds

answer:   x = 3 + √11     and     x = 3 - √11

step-by-step explanation:

x² - 6x + 9 = 11

(x - 3)² = 11

x - 3 = ±√11

    x = 3 ± √11

x = 3 + √11     and     x = 3 - √11

the solution is x=1

step-by-step explanation:

we are given our   equation as

let's assume

left side function is

right side function is

now, we can draw graph

and then we can get intersection point

the intersection point will be solution

so, the solution is

x=1