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pecanpielover04
11.02.2021 •
Mathematics
State whether each set of ordered pairs represents a function. {(10, 9), (–2, –16), (–6, 7), (5, 8), (8, –16), (–11, 9)}
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Ответ:
x = 48, y = 13
Step-by-step explanation:
Since they have a pair of verticle angles, this means the triangles are similar. You find a common side (the length 5 and length 20) and you know the ratio, (divide 20 by 5) aka. the larger triangle is 4 times larger than the smaller one. That means the side lengths are also 1/4 scale. So the bigger triangle = 12(length of side)*4(ratio). Also since y is on the smaller triangle, you scale it down by 1/4, so 52 (the side length) / 4 (ratio) is 13. So y = 13, x =48