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11.02.2020 •
Mathematics
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Ответ:
Step-by-step explanation:
9) to determine x, we would apply the sine rule which is expressed as
a/SinA = b/ SinB = c/SinC
Therefore,
12/Sin95 = 8/Sinxx
Cross multiplying, it becomes
12Sinx = 8Sin95 = 8 × 0.9962
Sinx = 7.9696/12 = 0.6641
x = Sin^-1(0.6641)
x = 41.61°
10) we would apply the cosine rule. It is expressed as
a² = b² + c² - 2abcosA
Therefore,
x² = 6² + 8² - 2 × 6 × 8 × Cos 100
x² = 36+ 64 - 96 × - 0.1736
x² = 100 + 16.6656 = 116.6656
x = √116.6656
x = 10.8
Ответ:
The answer to your question is below
Step-by-step explanation:
Number 9.
To find x use the law of sines
sin x / 8 = sin 95 / 12
Solve for sin x
sin x = 8 sin 95 / 12
sin x = 0.664
x = 41.6°
Number 10
To find x use law of cosines
x² = 6² + 8² - 2(6)(8)cos100
x² = 36 + 64 - 96(-0.174)
x² = 100 + 16.67
x² = 116.67
x = 10.80
Ответ:
also the approximate year that they had the same revenue was in the seventh year.