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29-03-2019
Mathematics

contestada

Find the length of side BA. Round to the nearest hundredth.

A) .42

B) .65

C) .83

D) 1.25

Find the length of side BA Round to the nearest hundredth A 42 B 65 C 83 D 125 class=

Respuesta :

calculista calculista

07-04-2019

Answer:

Option A. [tex]0.42[/tex]

Step-by-step explanation:

we know that

Applying the law of cosines

[tex]BA^{2}=(1/2)^{2}+(1/3)^{2} -2(1/2)(1/3))cos(100)[/tex]

[tex]BA^{2}=0.1756[/tex]

[tex]BA=0.42[/tex]

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