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NARA [144]
3 years ago
9

A triangle has the following measurements: B=79 degrees a=5ft

Mathematics
1 answer:
11Alexandr11 [23.1K]3 years ago
6 0
The law of cosines for this particular situation is b^2 = a^2 + c^2 - 2ac cosB.
Filling in what you know, you have b^2 = 25 + 49 - [2(5)(7)-.1908], which simplifies to b^2 = 74 - 69.8092 which gives you a b^2 value of 4.1908, but you have to take the square root of that so you get a side value for b of 2.05.
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Step-by-step explanation:

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Ratling [72]

Answer: point estimate = 3.88

Margin of error = 0.63

Step-by-step explanation:

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(Point estimate - margin of error, Point estimate + margin of error)

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x - m = 3.25

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2x = 7.76

x = 7.76/2

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Substituting x = 3.88 into x + m = 4.51, it becomes

3.88 + m = 4.51

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8 0
3 years ago
URGENT!!!!!<br> What is the value is x?<br> A. 5.375<br> B. 5.5<br> C. 11<br> D. 13
vodka [1.7K]

Answer:

value of x is B 5.5

Step-by-step explanation:

B 5.5 value of X

7 0
3 years ago
Read 2 more answers
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