Solve.
= 9 - 
A. 2
B. 
C. 1
D. 
Answer: A
Mathematics
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Solve the problem.(-1, -7), (-3, -10), and (2, -9) are the vertices of an isosceles triangle. Find the perimeter of the triangle.
A. 
B. 4
C. 2
+ 
D. 
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Find an equation of the tangent to the curve at the point corresponding to the given value of the parameter.
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Use the accompanying graph of y = f(x) to sketch the graph of the indicated equation.y = - 
f(x)
A. 
B. 
C. 
D. 
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Graph the system of inequalities.x + 2y ? 2y ? x
A. 
B. 
C. 
D. 
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