chicanasacp355r2 chicanasacp355r2

17-04-2021
Mathematics

contestada

Acellus
Find Y.
Round to the nearest tenth.
20 ft/
\22 ft
Y
Х 18 ft
Y= [? ]°
Law of Cosines: c2 = a2 + b2 - 2ab cos C
Enter

Acellus Find Y Round to the nearest tenth 20 ft 22 ft Y Х 18 ft Y Law of Cosines c2 a2 b2 2ab cos C Enter class=

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Аноним Аноним

17-04-2021

Answer:

58.9

Step-by-step explanation:

y²=x²+z²-2×z cos(y)

20²=22²+18²-2(22)(18) cos (y)

400=484+324-792 cos(y)

-408=-772 cos (y)

408/792=cos y

y=cos⁻¹(408/792)=58.9

hope it helps...

have a great day!!

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