Answer:
21/√3=7√3 or 12.12 simplified
Step-by-step explanation:
Here is the formulas 30-60-90 triangle: hypotenuse = 2short leg short leg = nhypotenuse/2 long leg = short leg√3 short leg = long leg/√3
The answer to your question is X=1
Answer: 55.4 mins
Step-by-step explanation:
pragnesh and qazi = 2hrs
pragnesh and roghui = 3hrs
qazi and roghui = 4hrs
this means for every 1 hour they wold paint.
pragnesh and qazi =
half of the fence
pragnesh and roghui = 
qazi and roghui =
quarter of the fence
time taken when they all work together
=
+
+ 
= 
= 
= 0.9231 × 60(mins)
= 55.4 mins
A, it’s A. As both parties have negatives.