What is the arithmetic mean of the following numbers?
9,10,6,5,6

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

The function ƒ is defined by ƒ(x) = (x + 3)(x + 1). the graph of ƒ in the xy-plane is a parabola. which interval contains the x-coordinate of the vertex of the graph of ƒ?

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