Step-by-step explanation:
20 men work 8 hours a day for 18 days.
that are
20×8×18 = 2880 work hours to complete that work.
if 24 men work 5 hours a day, that are
24×5 = 120 work hours per day.
we still need to do the total 2880 work hours.
so, they will need
2880 / 120 = 24 days to complete the work.
(f+g)(-1)
=f(-1)+g(-1), so;
f(x)=3x+8
f(-1)=3(-1)+8
f(-1)=-3+8
f(-1)=5
g(x)=6x+6
g(-1)=6(-1)+6
g(-1)=-6+6
g(-1)=0
Finally:
f(-1)+g(-1)
=5+0
=5. As a result, (f+g)(-1) is 5. Hope it help!
the correct answer is C to this question
Answer:
38
Step-by-step explanation:
