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Shalnov [3]
2 years ago
10

He sum of two numbers, x and y, is 12. the difference of x and two times y is 6. what are the values of x and y? x = 8, y = 4 x

= 10, y = 2 x = 18, y = -6 x = 20, y = -8
Mathematics
1 answer:
Sveta_85 [38]2 years ago
8 0
The last choice is correct
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3 years ago
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Salsk061 [2.6K]

Important notes:

3 sides 1 angle - COSINE RULE

2 sides 2 angle - SINE RULE

since, the question wants to find the length of BC. In the end we will have 3 sides and 1 angle and use cosine rule

formula of cosine rule:

a² = b² + c² - 2bc Cos A° (to find the length)

Cos A° = b² + c² - a² / 2bc ( to find the angle, if there is given three sides and have to find the angle)

So just substitute,

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Step-by-step explanation:

5 0
2 years ago
A shipping container is in the shape of a right rectangular prism with a length of 8 feet, a width of 3.5 feet, and a height of
harkovskaia [24]

Answer:

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Step-by-step explanation:

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3 years ago
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