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Marizza181 [45]
3 years ago
14

Find the missing side lengths​

Mathematics
2 answers:
Vera_Pavlovna [14]3 years ago
6 0

Cos( 30 ) = 19√3 / x

√3 / 2 = 19√3 / x

Simplify √3 from both sides

1 / 2 = 19 / x

Multiply both sides by x

1 /2 × x = 19 / x × x

x / 2 = 19

Multiply both sides by 2

x / 2 × 2 = 19 × 2

x = 38

_____________________________

Sin( 30 ) = y / x

1 / 2 = y / 38

Multiply both sides by 38

38 × 1 / 2 = 38 × y / 38

38 / 2 = y

19 = y

y = 19

Crazy boy [7]3 years ago
5 0
X = 38
Y = 19
Brainliest please
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Given:

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\sigma_B^2=\dfrac{\sum (x_i-\overline{x}_B)^2}{n_B}

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\sigma^2=\dfrac{154}{10}

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