zoebtharpe
05.12.2021 •
Mathematics
Which of the following equations could be solved to determine the length of ?
A) QR2 = 202 + 272 – 2(20)(27) ⋅ cos 99°
B) cos 99/QR = cos/20
C) QR2 = 202 + 272 – 2(20)(27)
D) QR2 = 202 + 272 – cos 99°
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Ответ:
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Ответ:
b
Step-by-step explanation:
5 faces 6 vertices goodluck