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vfiekz [6]
3 years ago
15

Solve 17 and 18 please.

Mathematics
1 answer:
Klio2033 [76]3 years ago
5 0

Answer:

Step-by-step explanation:

<em>17.</em>

sin20° = \frac{1}{x}

x = 1 ÷ sin20°

<em>x</em> ≈ <em>2.9238</em>

cos20° = \frac{x}{y}

y = x ÷ cos20°

<em>y</em> ≈ 2.9238 ÷ cos20° ≈ <em>3.11</em>

<em>18.</em>

<em>x = 2√3</em> ≈ 3.46

<em>y = √3</em> ≈ 1.732

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