Find attached a graph that I constructed.
To do that graph I used Excel.
First I did a table with this set of points:
<span><span><span>height      presuure
</span>
<span>
miles        psi
</span>
<span>
0             
14,7
</span>
<span>
<---- initial data
3.6           7.35
</span>
<span>
<--- increase hegiht 3.6 miles => half pressure
7.2           
3.675
</span>
<span>
<---- second increase of 3.6 miles in height
10. 8        
1.8375
</span>
<span>
<---- third increase of 3.6 miles in height
14.4          
0.91875
</span>
<span>
18              0.459375
</span>
</span></span>
 
        
        
        
Answer:
-3 + h = 3.4 is the inequality for ur kwestion
 
        
             
        
        
        
Answer:
b
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
D
Step-by-step explanation:
the equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
here m = - 2 , then
y = - 2x + c ← is the partial equation
to find c substitute (3, - 2 ) into the partial equation
- 2 = - 6 + c ⇒ c = - 2 + 6 = 4
y = - 2x + 4 ← equation of line in slope- intercept form
 
        
             
        
        
        
Step-by-step explanation:
First term(a) = 1
Common difference(d)=2-1=1
No.of term(n)=50
Sn=n÷2(n+1)=50÷2(50+1)=1275