24 in total. 8 were solo. The test group. 24-8=16 group. 16/24=(66+2/3)%
Answer I
Answer:
x = 9±sqrt(7)
Step-by-step explanation:
3(x-9)^2 =21
Divide each side by 3
3/3(x-9)^2 =21/3
(x-9)^2 =7
Take the square root of each side
sqrt((x-9)^2) =±sqrt(7)
x-9 =±sqrt(7)
Add 9 to each side
x = 9±sqrt(7)
Answer: I'm sorry but I just need points._.
Step-by-step explanation:
It would be a lot easier if you didn't have to show a system of equations.
