Answer:
1.35
Step-by-step explanation:
I believe this is right but it could be wrong. Hope this helps! <3
 
        
             
        
        
        
The answer is 4.5 l
To calculate this, we will use the Boyle's law using constant k, pressure P, and volume V:
 PV = k
We can forget temperature since it is constant.
We have:
P1V1 = k
P2V2 = k
So, P1V1 = P2V2
P1 = 3 atm
V1 = 1.5 l
P2 = 1 atm
V2 = ?
_____
P1V1 = P2V2
3 atm * 1.5 l = 1 atm * V2
4.5 atm/l = 1 atm * V2
V2 = 4.5 atm l / 1 atm
V2 = 4.5 l
 
        
        
        
Answer: 12.25
Step-by-step explanation:
Given the following details :
DAC = 90° and ABC = 90° = right angled
Segment AB is Parallel to segment DC
FROM THE DETAILS ;
Triangle ABC and ACD are similar triangles. 
Length AC = 7 Units 
Length AB = 4 Units 
For similar triangles :
Segment CD /AC = Segment AC / AB
CD / 7 = 7 / 4
Cross multiply 
CD × 4 = 7 × 7
CD × 4 = 49
CD = 49 / 4
CD = 12.25 Units 
 
        
             
        
        
        
Where is the question? It’s 2(3)
        
             
        
        
        
Answer:
I need more information.
Step-by-step explanation: