Answer:
See below
Step-by-step explanation:
We can simply use a graphing calculator to graph the function

See in the attached file!
<span>The correct answer is (a) total deviation equals unexplained deviation plus explained deviation.
These deviations are commonly encountered or studied in statistics, and sometimes in regression analysis.</span>
Answer:
No Solution.
Step-by-step explanation:
-6(x-7)+6(x+5)=73
-6x+42+6x+30=73
72=73
no solution
I think 176 adult tickets were sold , sry if it’s wrong i’m kinda bad in math
Answer:
70 students
Step-by-step explanation:
As, 30% Mike surveyed
And these 30% are 21 students
So 30% of X = 21
= 30/100 x X = 21
= 30X = 2100
So X = 2100/30
X = 70
So 70 students were surveyed