Answer:
vertex = (- 1, 1 )
Step-by-step explanation:
Given a parabola in standard form
y = ax² + bx + c ( a ≠ 0 )
Then the x- coordinate of the vertex is
x = - 
y = x² + 2x + 2 ← is in standard form
with a = 1 and b = 2 , then
x = -  = - 1
 = - 1
substitute x = - 1 into the equation for y- coordinate of vertex
y = (- 1)² + 2(- 1) + 2 = 1 - 2 + 2 = 1
vertex = (- 1, 1 )
 
        
             
        
        
        
Answer:
The anwser is -14.96
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
20 CDs
Step-by-step explanation:
Assuming you can't buy 1 CD, you have to buy 2 CD's for 15.95, let's see how many 2CD-Batches we can buy with 60:
60/15.95 = 3.76 CD batches
We can't buy the fractional amount, so we have to buy "3" 2-CD-Batches.
Thus, we will have 3 * 2 = 6 CD's  now
Since we had 14 and now we buy 6, we will have
14 + 6 = 20 CDs now.
20 CDs
 
        
             
        
        
        
Answer: 52:3
Step-by-step explanation:
260 divided by 5 = 52
15 divided by 5 = 3
260:15 = 52:3
 
        
             
        
        
        
N= numerator
D= denominator
N:D ==> 2:3
2:3, 4:6, 6:9... And so on... 
The pattern here is that the numerator increases by 2 and the denominator by 3. Easy right? 
Now 5 is added to the "n". 
Now it is N:D ==> 3:2
3:2, 6:4, 9:6... And so on...
The pattern here is inverted then the 2:3 one.
If I'm right then which one (you might have to continue the process/pattern) then one of them will increase by 5.
3 => 2 = +1 (2+1=3)
6 => 4 = +2 (4+2=6)
9 => 6 = +3 (6+3=9)
12 => 8 = +4 (8+4=12)
15 => 10 = +5 (10+5=15)
18 => 12= +6 (12+6=18)
Q. Which one is +5?
A. 15:10
That is what "I" think it is. 
Now, the question is, 
Does it work? Does it fit the above description? 
Q. Does it even work? Does it fit the above description?