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Harlamova29_29 [7]
2 years ago
7

How many total atoms of Aluminum (Al) are represented: 4Al3O3

Mathematics
1 answer:
Burka [1]2 years ago
5 0

Answer:

12(twelve)

Four times three

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Theoretically if a card is chosen 200 times, how many times would you expect to get a card without stripes?
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Find the vertex of the graph of f(x)=-4(x-1)(x+5)
madreJ [45]

The vertex of the graph is (h, k) = (- 2, 36).

<h3>How to find analytically the vertex of a quadratic equation</h3>

In this question we have a quadratic equation of the form f(x) = a · (x - r₁) · (x - r₂) and we need to transform the expression into its vertex form of determine the coordinates of the vertex. First, we need to exprand the expression:

f(x) = - 4  · (x - 1) · (x + 5)

f(x) = - 4 · (x² + 4 · x - 5)

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Now we proceed to complete the square:

f(x) = - (4 · x² + 16 · x - 20)

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- f(x) + 36 = (2 · x)² + 8 · (2 · x) + 16

- f(x) + 36 = (2 · x + 4)²

- f(x) + 36 = 4 · (x + 2)²

f(x) - 36 = - 4 · (x + 2)²

The vertex of the graph is (h, k) = (- 2, 36).

To learn more on quadratic equations: brainly.com/question/17177510

#SPJ1

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The conditional and its converse are true, and the biconditional is
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