Answer:
   -5t^2 +2t -3
Step-by-step explanation:
Collect terms in the sum:
   G+P = (3t^2 -5t +6) +(-8t^2 +7t -9) = (3-8)t^2 +(-5+7)t +(6-9)
   = -5t^2 +2t -3
 
        
             
        
        
        
1 hour and 15 minutes
hope it helped you
        
             
        
        
        
Answer:
   x ≈ 1.5004
Step-by-step explanation:
We suppose your equation is ...
    
 
Squaring both sides and subtracting the right side gives ...
   
This 6th-degree equation has two positive real roots, near x=1.5, and x=2. The root at x=2 is extraneous. The one near x=1.5 is irrational.
 
        
             
        
        
        
5/6
The greatest common denominator of 45 and 54 is 9. 
45/(divided) 9 = 5
54/(divided) 9 = 6
        
                    
             
        
        
        
Answer:
50 times
Step-by-step explanation:
You are going to flip a coin 100 times. There are 2 sides. So, what you would do is divide 100 by two because there are two sides. There is a 50% chance that the coin will land on heads, and a 50% chance it will land on tails.
Please let me know if you have any more questions. Hope this helps!