Answer:
[-20.25;+∞).
Step-by-step explanation:
1) according to the properties of the given parabola the minimum is:

2) y₀=-20.25 means, the value -20.25 is minimum of the range, the maximum →+∞;
3) finally, the range y≥-20.25.
 
        
             
        
        
        
Answer: c. b/35 =11
Step-by-step explanation:
the total beads is over beads of necklace and there’s 11 necklaces needed to make
 
        
             
        
        
        
Answer:
   (d)  10
Step-by-step explanation:
Multiply by x and divide by its coefficient:
   (43.65)(8.79) = (0.4365)(87.9)x
   (43.65)(8.79)/((0.4365)(87.9)) = x
At this point, any calculator can give you the answer. It is, perhaps, more satisfying to work out the answer without a calculator.
   x = (43.65)/(0.4365) × (8.79)/(87.9)
In the first quotient, the numerator is 100 times the denominator; in the second, the denominator is 10 times the numerator.
   x = (100) × (1/10) = 100/10
   x = 10
_____
Moving the decimal point to the right 1 place multiplies the numerical value by 10.
 
        
             
        
        
        
Answer:
0.800
Step-by-step explanation:
 
        
             
        
        
        
 1 + 54 = 55
2 + 53 = 55
3 + 52 = 55 
4 + 51 = 55
5 + 50 = 55
6 + 49 = 55
7 + 48 = 55
8 + 47 = 55
9 + 46 = 55
10 + 45 = 55
and so on...
I hope that helps. :)