Answer:
1
Step-by-step explanation:
You can't construct more than 1 triangle. If either of the angles shift, the triangle won't close. And a equilateral triangle must close to be considered, well, a triangle.
 
        
             
        
        
        
There are two ways to solve this. 
The first way is logically. 
Mary can 
-wear a pink dress with black shoes   -wear a pink dress with white shoes
-wear a blue dress with black shoes   -wear a blue dress with white shoes
-wear a yellow dress with black shoes   - wear a yellow dress with white shoes
Count them up, and you'll get six combinations! 
Another way is simply mathematically, which is easier in my opinion. 
3 (different colored dresses) × 2 (different colored shoes) = 6 (combos)
        
             
        
        
        
Answer:
Merry Christmas to you too
Explanation:
 
        
             
        
        
        
Answer:
-155
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
A quadratic function has the formula ax² + bx + c
- To determine if a graph will be narrow or wide, the leading coefficient, a, will be the factor that determines this
- The greater the coefficient, the narrower the parabola
- The lesser the coefficient, the wider the parabola
Here all of the functions are in the form ax²
- In  , our "a" term is , our "a" term is 
- In y = -2x², our "a" term is -2
- In y = -3x², our "a" term is -3
- In  , our "a" term is , our "a" term is  
We can eliminate the two functions with the negative coefficients because they are much smaller than the two functions with the fractions as coefficients, and will therefore open much wider.
We can now compare the two remaining functions,  and
 and   
 
- Giving the two fractions common denominators would turn them into  and and  
- The equation with the larger fraction will be the parabola that is the narrowest. In this case, it is the  . .
- Therefore,  will have the narrowest graph will have the narrowest graph