How did they get that vertex

1 answer:

8 0

Answer:A vertex (or node) of a graph is one of the objects that are connected together. The connections between the vertices are called edges or links. A graph with 10 vertices (or nodes) and 11 edges (links).

Step-by-step explanation: (The vertex formula is derived from the completing-the-square process, just as is the Quadratic Formula. In each case, memorization is probably simpler than completing the square.) For a given quadratic y = ax2 + bx + c, the vertex (h, k) is found by computing h = –b/2a, and then evaluating y at h to find k.

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At a party, everyone shook hands with everybody else. There were 66 handshakes in total. How many people were at the party?

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12 people were at the party.

You can choose 12 people to be one person, and 11 to be a person they are shaking hands with. However, this allows us to choose person A, then person B, or Person B, then Person A. We don't want to double-count this case, so we divide by 2. 12*11/2=66, so 12 works.

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Juan cuts a piece of paper in half. he then cuts each half into thirds and each of those pieces into eights. finally, he cuts ea

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Answer:

D: 768

Step-by-step explanation:

First, he divides a piece of paper in half.

$1 \div \frac{1}{2} = 2$