I NEED AN EXPERT ON SURFACE AREAS..Ill give extra points and brainless
2 answers:
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1h 15minutes, I converted each time into fractions, 2hours to 
and the 8hour to 
, this means, painter #1 finishes 1/2 of the project in 1 hour, and paither #2 finishes 1/8 of project in 1 hour, now when we make each fraction out of 2 hours, so 
and 
, we add them and get 
, then as mixed number, 1 1/4 which is 1 hour and 15min<em>(1/4 of a hour)</em> I believe im right.
Answer:
The answer to your question is Perimeter = 287.3 in
Step-by-step explanation:
AB = 90 in
BC = 80 in
∠B = 50
Perimeter = ?
Process
1.- We need to find AC using Law of sines
A = 42.9 ≈ 43
The sum of the internal angles in a triangle equals 180°
A + B + C = 180°
43 + B + 50 = 180
B = 180 - 43 - 50
B = 87°
AC = 117.3
2.- Find the perimeter
Perimeter = AB + BC + AC
Perimeter = 90 + 80 + 117.3
Perimeter = 287.3 in