2 years ago

If 45% of a number, n, is 225, what is 74% of n? A. 185 B. 298 C. 370 D. 406

Mathematics

1 answer:

Stolb23 [73]2 years ago

4 0

Answer:

Step-by-step explanation:

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Vertex form;

$y = 3( {x + \frac{3}{2} })^{2} - \frac{35}{4}$

Vertex

$V( - \frac{3}{2} , - \frac{35}{4} )$

EXPLANATION

Given:

$f(x) = 3 {x}^{2} + 9x - 2$

We complete the square as follows:

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$y = 3( {x}^{2} + 3x + \frac{9}{4} ) - 2 - 3 \times \frac{9}{4}$

The vertex form is:

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The vertex is

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