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Arisa [49]
4 years ago
5

The vertices of polygon ABCD are at A(1, 1), B(2, 3), C(3, 2), and D(2, 1). ABCD is reflected across the x-axis and translated 2

units up to form polygon A′B′C′D′. Match each vertex of polygon A′B′C′D′ to its coordinates.
Mathematics
1 answer:
Lana71 [14]4 years ago
8 0

-- Reflecting across the x-axis makes all the x-coordinates the negative of
what they were before the reflection.  The y-coordinates don't change.

-- Translating 2 units up makes all the y-coordinates 2 greater than
they were before the translation.  The x-coordinates don't change.

You didn't give us a list of new coordinates, so there's nothing
to match with.
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Answer:

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Step-by-step explanation:

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3 years ago
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Answer:

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Step-by-step explanation:

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[ taking cos to the other side  or applying cos on both sides]

  • now, substitute this in the given expression
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as sin\beta =  + or -\sqrt{1-(cos\beta) ^{2}

[by general trigonometry formula: cos^{2}[\beta]  +sin^{2}[\beta]=1]

so if  cos\alpha= 5/13, we can get sin\alpha from the above formula as + or - 12/13

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4 0
3 years ago
What divided by 9 equals 5
den301095 [7]
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4 years ago
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polet [3.4K]
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