Find the area of the square. 
A. 25 sq mi
B. 20 sq mi
C. 28 sq mi
D. 21 sq mi
Answer: A
Mathematics
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Find the sum.
A. -70 B. 62 C. 2 D. 70
Mathematics
Determine the vertex of the graph of f.f(x) = x2 + 2
A. (0, -2) B. (0, 2) C. (2, 0) D. (-2, 0)
Mathematics
Write a general formula to describe the variation.The illumination I produced on a surface by a source of light varies directly as the candlepower c of the source and inversely as the square of the distance d between the source and the surface.
A. I = 
B. I = 
C. I = 
D. I = kcd2
Mathematics
Provide an appropriate response.Under what circumstances can a system of equations be solved more easily by graphing than be substitution?
What will be an ideal response?
Mathematics