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3 years ago

5

Formulate the quadratic function that contains the points (-1,2), (0,-1) and (2,5). f(x) = 2x2 + x + 1 f(x) = 2x2 - x - 1 f(x) =

2x2 - x + 2 f(x) = 2x2 - x - 2

1 answer:

ANEK [815]3 years ago

8 0

The answer is fx =2x2+x+1

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Answer:

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Part b) 132:89 vs 132 to 89

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Part d) 66:7 vs 66 to 7

Step-by-step explanation:

Let

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y ----> the number girls

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Part a) Write the ratio of the number of boys to the number of girls.

To find the ratio of the number of boys to the number of girls, divide the number of boys by the number of girls

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substitute

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Part b) Write the same ratio using another form (A: B vs. A to B)

we have

$\frac{132}{89}$

The other form is

132:89 vs 132 to 89

Part c) Write the ratio of the number of boys to the number of adults

To find the ratio of the number of boys to the number of adults, divide the number of boys by the number of adults

so

$\frac{x}{z}$

substitute

$\frac{132}{14}$

Simplify

$\frac{66}{7}$

Part d) Write the same ratio using another form

The other form is

66:7 vs 66 to 7

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