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Inessa05 [86]
2 years ago
12

AB parallel to CD and AC=BC find d​

Mathematics
1 answer:
kirill115 [55]2 years ago
3 0

Answer:

58\int\limits^a_b {x} \, dx \left \{ {{y=2} \atop {x=2}} \right.  \lim_{n \to \infty} a_n

Step-by-step explanation:

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I don’t know how to find X or Y very urgent, need to figure this out how to solve plz help
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Answer:

x = 9

y = 9√3 = 15.6

Step-by-step explanation:

The triangle given is a right triangle, therefore:

✔️apply trigonometric ratio formula to find x:

Reference angle = 60°

Hypotenuse = 18

Adjacent = x

Thus:

Cos (60) = x/18

Multiply both sides by 18

18×cos(60) = x

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✔️find y by applying pythagorean theorem:

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y² = 18² - 9² (substitution)

y² = 243

y = √243

y = √(81*3)

y = 9√3 = 15.6

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