Irrational because you it’s irra
        
             
        
        
        
Answer:
160 good luck tho on whatever
Step-by-step explanation:
450-290
 
        
             
        
        
        
Answer:
13/1700
Step-by-step explanation:
so you do 13/17 x 1/100 which is 13/1700 please mark brainliest
 
        
                    
             
        
        
        
Answer:
<h3>
b=
</h3>
Step-by-step explanation:
4b+5=t 
First, you must get the variable alone! Substract 5 from both sides!
4b<u>+5=t </u>
     -5  -5
The 5 cancels out because 5-5=0
The new equation is 4b=t-5
You must divide by 4 to get the variable alone since your solving for b!
<u>4b=t-5</u>
4      4
b= 
This is your answer!
 
        
             
        
        
        
To minimize the cost, we take the straight distance from the refinery to the other side of the river as 2 km. Also, the 7 km will be the distance that has to be traveled by the pipeline in land. The total cost, C, is therefore,
               total cost =   (2 km)($800,000/km) + (7 km)($400,000 /km)
                    total cost = $4,400,000
Thus, the total cost of the pipeline is approximately $4,400,000.00.