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KatRina [158]
3 years ago
7

Please answer this question now

Mathematics
1 answer:
docker41 [41]3 years ago
5 0

Answer:

\boxed{u = 6.0}

Step-by-step explanation:

Using the cosine rule

c^2= a^2+b^2-2abCosC

Here c = u , a = 11 , b = 12 and C = 30

u^2 = 11^2+12^2-2(11)(12)\ Cos 30\\u^2 = 121+144-2(132)(0.866)\\u^2 = 265-228.6\\u^2 = 36.37

Taking sqrt on both sides

u = 6.0   (To nearest tenth)

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I need to find the value of x help needed
Oksi-84 [34.3K]

Answer:

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Step-by-step explanation:

Hi there!

We're given a triangle, with 2 known measures of angles in the triangle

54° and 93°

the other (unknown) value is x

the angles in a triangle add up to 180°

therefore, to find the value of x, we can add up the values of the 3 angles and set that to equal 180

54°+93°+x°=180°

add 54 and 93

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subtract 147 from both sides

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Hope this helps!

6 0
3 years ago
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mafiozo [28]

Answer:

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Step-by-step explanation:

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