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weeeeeb [17]
3 years ago
11

What is x? I need help T^T

Mathematics
2 answers:
ohaa [14]3 years ago
7 0

Answer:

Step-by-step explanation:

2x + 20° = 3x - 10° ( being corresponding angles )

3x - 2x = 20° + 10°

x = 30°

serg [7]3 years ago
7 0

mineral física cuántica que es la luz que me sirve para apagar bu j

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5 0
3 years ago
The two non-parallel sides of an isosceles trapezoid are each 7 feet long. The longer of the two bases measures 22 feet long. Th
Orlov [11]

The length of the diagonal and the shorter base are 17. 24 feet and 18. 7 feet long respectively.

<h3>How to determine the length</h3>

The cosine rule is given as;

c = \sqrt{a^2 + b^2 - 2ab cos \alpha }

c = length of the diagonal

a = base length = 22 feet

b = 7 feet

c = \sqrt{7^2 + 22^2 - 2 * 7 * 22 cos 40}

c = \sqrt{533 - 308 * 0. 7660}

c = \sqrt{533 - 235. 93}

c = \sqrt{297. 072}

c = 17. 24 feet

Using sine rule

\frac{a}{sin A }  = \frac{c}{sin C}

\frac{a}{sin 70}  = \frac{17. 24}{sin 40}

Cross multiply

a × sin 60 = c × sin 70

a × 0. 8660 = 17. 24 × 0. 9397

a = \frac{16. 20}{0. 8660}

a = 18. 7 feet long

Thus, the length of the diagonal and the shorter base are 17. 24 feet and 18. 7 feet long respectively.

Learn more about  isosceles trapezoid here:

brainly.com/question/10187910

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5 0
2 years ago
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Softa [21]

Answer:

The answer is B

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Answer:

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Step-by-step explanation:

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