Provide an appropriate response.In an equilateral triangle, all sides have the same length. Can a right triangle be equilateral? Why or why not?
What will be an ideal response?
No; consider an equilateral triangle with side s. If this were a right triangle, then it would hold that 
This is true only for s = 0, so a right triangle cannot be equilateral.
Mathematics
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Multiply and simplify.
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B. 
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Mathematics
Find the center and radius of the circle.x2 + y2 - 18x + 4y + 36 = 0
A. (9, -2); r = 7 B. (-9, 2); r = 49 C. (-2, 9); r = 7 D. (2, -9); r = 49
Mathematics
Find the focus and directrix of the parabola with the given equation.y2 = -36x
A. Focus: (0, 9), directrix: y = -9 B. Focus: (-9, 0), directrix: x = 9 C. Focus: (9, 0), directrix: x = -9 D. Focus: (0, -9), directrix: y = 9
Mathematics
Match the graph with its equation.y = -2x + 7
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B. 
C. 
D. 
Mathematics