Lines of symmetry if the triangle is isosceles. 
4, 2, 1
        
             
        
        
        
Answer:
5.7*10^-3
Step-by-step explanation:
 
        
                    
             
        
        
        
Hello there!
Here's what definitions I think match up with each term:
Equilateral triangle: a triangle with three congruent sides
Composite figure: a figure made up of two or more three dimensional figures
Parallelogram: a quadrilateral with opposite sides both parallel and congruent
Volume: the amount of space within a three dimensional figure
Rectangular prism: a three dimensional figure with six rectangular faces, twelve edges, and eight vertices
Regular polygon: a polygon with 5 sides
Triangular prism: a prism with two congruent triangular based
Obtuse triangle: a triangle with one obtuse angle
Face: a flat surface of a three dimensional figure
Polygon: a polygon with congruent sides/congruent angles
Square: a closed figure made up of line segments that do not cross each other
Hope this helped you out! :-)
        
             
        
        
        
Answer: Vertex : Maximum (2, 0)
Rules:
- (x + d)² = x² + 2dx + d²    and   (x - d)² = x² - 2dx + d²
- x² + 2dx = (x + d)² - d²   and  x² - 2dx = (x - d)² - d²
Solve:
x² - 4x + 4
x² - 2(2x) + 2²
(x - 2)²
Into vertex form: a(x - h)² + k
1(x - 2)² + 0
Identify:
vertex : (h, k) = (2, 0)
Find additional things, to graph the equation:
(i) x-intercept: (2, 0)
(ii) y-intercept: (0, 4)
Graph shown:
 
        
                    
             
        
        
        
Answer:
it has to be a or d
Step-by-step explanation:
they have 4000 in 1996 but we want 1991.so we get 15 percent of least time but i belive its d