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Hatshy [7]
3 years ago
7

20 points!

Mathematics
2 answers:
Sveta_85 [38]3 years ago
8 0

Translations, rotations, and reflections are all rigid transformations.

marissa [1.9K]3 years ago
8 0

Answer:

B,C and E

Step-by-step explanation:

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If this an it my bad Gee

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Can someone just take an educated guess? Its multiple-choice and I'm so lost :(
Shkiper50 [21]

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MariettaO [177]

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Given that sin theta = 1/4, 0
GaryK [48]
Answer: cos(Θ) = (√15) / 4

Explanation:

The question states:

1) sin(Θ) = 1/4

2) 0 < Θ < π / 2

3) find cos(Θ)

This is how you solve it.

1) Use the fundamental identity (in this part I use α instead of Θ, just for facility of wirting the symbols, but they mean the same for the case).

(cos \alpha )^2 + (sin \alpha )^2 =1

2) From which you can find:

(cos \alpha )^2 = 1 - (sin \alpha )^2

3) Replace sin(α) with 1/4

=> (cos \alpha )^2 = 1 - (1/4)^2 = 1 - 1/16 = 15/16

=> cos \alpha =+/- \sqrt{15/16} = +/- (\sqrt{15} )/4

4) Given that the angle is in the first quadrant, you know that cosine is positive and the final answer is:

cos(Θ) = \sqrt{15} /4.

And that is the answer.
6 0
3 years ago
Will give Brainliest! if right! 
riadik2000 [5.3K]
A is the right answer my bad :(
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3 years ago
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