Mathematics: Find the value of x. Round to the nearest tenth. х 16 30° 30 x = [?] need help asap:(

Find the value of x. Round to the nearest tenth.

Ответ:

taniyahbenyamin2

18.04.2021

Mathematics

$x\approx 18.0$

Step-by-step explanation:

Here, a = 30, b = 16, C = x

By law of cosines

${c}^{2} = {a}^{2} + {b}^{2} - 2ab \cos C \\ \\ {x}^{2} = {30}^{2} + {16}^{2} - 2 \times 30 \times 16 \: cos 30 \degree \\ \\ {x}^{2} = 900 + 256 - 960 \times \frac{ \sqrt{3} }{2} \\ \\ {x}^{2} = 1156 - 480 \times \sqrt{3} \\ \\ {x}^{2} = 324.615612 \\ \\ x = \sqrt{324.615612} \\ \\ x = 18.0170922 \\ \\ x \approx \: 18.0$

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Ответ:

aredding6282

03.11.2022

Mathematics

the answer is

the third one

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Find the value of x. Round to the nearest tenth.
х
16
30°
30
x = [?]
need help asap:(

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