The value of y is equal to 18.
<h3>What is the value of a variable related to geometric system?</h3>
In this problem we have a geometric system generated by two lines intersecting each other and generating two pairs of angles supplementary to each other. The system of linear equations representing the situation is presented below:
(8 · y - 13) + (3 · x + 4) = 180
3 · x + 8 · y = 189 (1)
(10 · x - 19) + (3 · x + 4) = 180
13 · x = 195 (2)
The solution to this system is (x, y) = (15, 18). The value of y is equal to 18.
To learn more on supplementary angles: brainly.com/question/18164299
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Answer:
Step-by-step explanation:
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Answer:
<h2><u><em>
342 m</em></u></h2>
Step-by-step explanation:
Calculate 50% of 684 m.
Give your answer in metres (m).
50% = 1/2
so
684 : 2 = 342 m
Answer:
sqrt(3)/2
Step-by-step explanation:
sin(420) = sin(420-360)
= sin(60) = sqrt(3)/2
sqrt: square root
