First computer takes x min. For 1 min it does 1/x part of work.
Second computer takes (x+24) min. For one min it does 1/(x+24) part of work.
Both computers for one min do (1/x+1/(x+24)) part of work.
At the same time, both computers for one min do 1/9 part of work.
Vertex is

and minimum value of f(x) is 12
Hope this helps
Answer:
1 and 3 are 47 degrees and 2 is 133 degrees
Answer:
4
Step-by-step explanation:
-15/3=-5-3=-8+12=4