ibrahimyusuf2418 ibrahimyusuf2418

31-12-2020
Mathematics

contestada

Calculate cose to two decimal places.

Calculate cose to two decimal places class=

Respuesta :

kenlingdad kenlingdad

31-12-2020

Answer:

B. 0.69

Step-by-step explanation:

Law of Cosines: cos A = (b² + c² - a²) / 2bc

cosθ = (7² + 11² - 8²) / 2*7*11 = 106/154 = 0.688 ≈ 0.69

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