Question

will give brainliest! pls help and give a quick summary for each.. i am learning trig but i really don't understand anything

Answer 1

#7

$\\ \tt\hookrightarrow cos47=\dfrac{x}{13}$

$\\ \tt\hookrightarrow x=13cos47$

$\\ \tt\hookrightarrow x=13(0.68)$

$\\ \tt\hookrightarrow x=8.84$

#9

$\\ \tt\hookrightarrow tan55=\dfrac{20}{x}$

$\\ \tt\hookrightarrow x=\dfrac{20}{tan55}$

$\\ \tt\hookrightarrow x=\dfrac{20}{1.42}$

$\\ \tt\hookrightarrow x=14.1$

#10

$\\ \tt\hookrightarrow tan32=\dfrac{18}{x}$

$\\ \tt\hookrightarrow x=\dfrac{18}{tan32}$

$\\ \tt\hookrightarrow x=\dfrac{18}{0.62}$

$\\ \tt\hookrightarrow x=29.03$

#11

$\\ \tt\hookrightarrow cosx=\dfrac{50}{29}$

$\\ \tt\hookrightarrow cosx=0.58$

$\\ \tt\hookrightarrow x=cos^{-1}(0.58)$

$\\ \tt\hookrightarrow x=73.7$

#14

$\\ \tt\hookrightarrow sinx=\dfrac{19}{22}$

$\\ \tt\hookrightarrow sinx=0.8$

$\\ \tt\hookrightarrow x=53.3$