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erica [24]
3 years ago
11

Which pair of angles are vertical angles? ∠KRC and ∠CRH ∠MRC and ∠KRM ∠ERT and ∠MRC ∠KRE and ∠ERT Lines K H, M T, and E C inters

ect at point R. Lines K H and M T are perpendicular. Line E C passes through angle K R T and angle M R H.
Mathematics
1 answer:
hram777 [196]3 years ago
8 0
The best and the most correct answer among the choices provided by the question is the first choice. The pair of angles that are vertical is <span>∠KRC and ∠CRH ∠MRC and ∠KRM ∠ERT. </span>I hope my answer has come to your help. God bless and have a nice day ahead!
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3 sin^{2} x +cos 2x= (5/4)<br>answer in radians
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Answer:

I believe it's 0.540717

Step-by-step explanation:

3(sin(2))x+(cos(2))(x)=5/4

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Divide: 2.311745x/2.311735=5/4/2.311745

x=0.540717

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Katyanochek1 [597]
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Find the value of x in a triangle. x-20, x+10, x-20
tatyana61 [14]

The value of the angles should be. (x-40°). , (x-20°), (½x-10°) , not (x-40°) + (x-20°)+(½x-10°)

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So a equation can be made by the given data,

(x-40°) + (x-20°) + (½ x-10°) = 180°

x-40°+x-20°+½x-10° = 180°

2x+½x -60°-10° = 180°

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5/2 x = 180° + 70°

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So the angles are

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