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Citrus2011 [14]
3 years ago
11

Choose where it is a function or not a function also choose what is the range and the domain

Mathematics
1 answer:
kow [346]3 years ago
7 0
Not a function because of the vertical line test.
Domain is [-2,∞] since the left most point is -2 and the right is unbounded.
Range is (-∞,∞) since it is not bounded in terms of y.
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The scale of a drawing is 2 cm : 1 mm. Is the scale drawing larger or smaller than actual object? Explain.
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The perimeter of a rectangle is 234 meters.
Licemer1 [7]

I am going to show you how easy this is. Once you understand, you will be able to do this forever.

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Assuming the side of the rectangle are (L) length and (W) width, the perimeter:

2L + 2W = 234

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"the rectangle is twice as long as it is wide,", the equation for this statement:

L = 2W

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In the first equation, we can replace L with 2W, then we have

2(2W) + 2W = 234

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Divide both sides by 6

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W = 39 meters is the width

:

Remember it said the length is twice the width, therefore:

L = 2(39)

L = 78 meters is the length

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Check this by finding the perimeter with these values

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7 0
2 years ago
Factorise :x^2y^2-16​
Lyrx [107]

Answer:

(xy - 4)(xy + 4).

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