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Semenov [28]
3 years ago
5

Solve for x and state the measure of the angles with an x in them

Mathematics
2 answers:
Arada [10]3 years ago
5 0

Answer:

x = 83

Step-by-step explanation:

The sum of the angles of a quadrilateral is 360

75+x+97+105 = 360

Combine like terms

x+277=360

Subtract 277 from each side

x+277-277=360-277

x = 83

Sidana [21]3 years ago
4 0

Answer:

x = 113 degrees

Step-by-step explanation:

all angles together equal 180 and if you take 180 - 75 - 97 - 105 that equals 113 and that's your missing angle :)

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Answer:

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Step-by-step explanation:

The given parameters are;

The number of adults surveyed, n = 174

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The sample size, 'N', is given as follows;

N = \dfrac{z^2 \cdot p \cdot q}{e^2}

Where;

N = The sample size

z = The confidence level, 90% (z-score at 90% = 1.645)

p·q = σ² = 18² = 324

e² = 3² = 9

N = \dfrac{1.645^2  \times 324}{3^2} = 97.4169

Therefore the appropriate sample size, N ≈ 97 adults.

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