2 years ago

I’ve asked this like 4 times and no answer

Mathematics

1 answer:

slamgirl [31]2 years ago

8 0

X = 5.6 + 3 + 7 I’m pretty sure
z = 7
y no idea
Hope it helped!

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Alika [10]

Answer:

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Step-by-step explanation:

Here we use the Cosine formula

$a^2 = b^2 + c^2 - 2bc\ cos\ A\\\\a^2 = 200^2 + 300^2 - 2\times 200\times 300cos50^{\circ}\\\\= 40,000 + 90,000 - 120,000cos50^{\circ}\\\\= 130,000 - 120,000 \times 0.64\\\\= 130,000 - 76,800\\\\a^2= 53,200\\\\a = \sqrt{53,200} \\\\= 230.65\ miles\ per\ hour$