3 years ago

−6.6(−4.3) Find answer plz

Mathematics

1 answer:

tangare [24]3 years ago

5 0

-6.6(-4.3)

=28.38

I hope this helps.

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The cosine law

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$\bf \textit{Law of sines}
\\ \quad \\
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-------------------------------\\\\$

$\bf \cfrac{sin(88^o)}{39.9}=\cfrac{sin(A)}{31}\implies \cfrac{31\cdot sin(88^o)}{39.9}=sin(A)
\\\\\\
sin^{-1}\left[ \cfrac{31\cdot sin(88^o)}{39.9} \right]=sin^{-1}\left[ sin(A) \right]
\\\\\\
sin^{-1}\left[ \cfrac{31\cdot sin(88^o)}{39.9} \right]=\measuredangle A
\\\\\\
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