Compound percentage reduction can be calculated by multiplying the initial number by (1-x)^t where x is the percentage reduction (/100, i.e. 1% reduction is 0.01), and t is the number of times it has reduced.
So:
a) 

Where t is the number of weeks.
We can then just substitute in to work out the final pressure:
b) p = 45*0.94^6 = 
31psi
 
        
        
        
Answer:
1.02×10¹ = 10.2
Step-by-step explanation:
We have given a number in scientific notation as follows 1.02×10¹
We need to convert it into standard notation.
1 is in ones place, 0 is in tenths place and 2 is in hundredths place.

So, the standard notation of 1.02×10¹ is 10.2
 
        
             
        
        
        
Answer:
Step-by-step explanation:
X^2-10x-8=0
Solve simultaneously
 
        
                    
             
        
        
        
Answer:
more info please\
Step-by-step explanation:
 
        
             
        
        
        
Answer: The slope is 0
Step-by-step explanation: The coordinates dont change from y=-5 to y=-5