Answer the question.Suppose polygon ABCD is any square with diagonals 
and 
intersecting at point F.
What is the measure of angle BFC?
Fill in the blank(s) with the appropriate word(s).
90°
Mathematics
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Give the coordinates of the vertex and graph the equation in a window that includes the vertex.y = x2 - 2x - 8 
A. Vertex: (-1, -9)
B. Vertex: (-1, -7)
C. Vertex: (1, 7)
D. Vertex: (1, -9)
Mathematics
Subtract.
- 
A. 
x4 + 
x2
B. 
x4 + 
x2 + 
C. 
x4 + 
x2 + 
D. 
x4 + 
x2
Mathematics
Solve the equation.35n2 + 60n = 0
A. 
, - 
B. 
, 0
C. 0
D. - 
, 0
Mathematics
Find the slope of the line.
A. 
B. 
C. 
D. 
E. 
Mathematics