U² + 6u - 27
u² + 9u - 3u - 27
(u - 3)(u + 9)
Answer:
Assuming you have
with
, the answer is f(2)=13.6.
Step-by-step explanation:
I think that says
with
.
Now we want to find
so replace n with 2:
This gives you:





B the one u already have clicked
I think the anser is c that what i think
Sin x = 0.5
sin x = 1/2
sin x = opp/hyp
therefore the ratio of opp/hyp = 1/2, (opp = 1, hyp = 2)
Find the opp side
1² + x² = 2²
1 + x² = 4
x² = 4 -1
x² = 3
x =√3
The opp side is √3
cos x = opp/hyp = √3/2 = 0.87 (round to the nearest hundredths)