Answer:
1) x = 20. 8
2) x = 42.3
3) x = 13.0
4) x = 42.1
Step-by-step explanation:
1) Use Sine
<em>(Sine = </em><em>) </em>Sine 53 =
<em>(sine of 53 is 0.80) </em>0.80 =
<em>(multiply 26 on both sides) </em>0.80 x 26 = x 26
<em>(solve) </em>20.8 = x
2) Use Tan
<em>(Tan = </em><em>) </em>Tan 78 =
(tan of 78 is 4.70) 4.70 =
<em>(multiply 9 on both sides) </em>4.70 x 9 = x 9
<em>(solve) </em>42.3 = x
3) Use Cosine
<em>(Cosine = </em><em>)</em> Cos 22 =
<em>(cos of 22 is 0.93</em>) 0.93 =
<em>(multiply 14 on both sid</em>es) 0.93 x 14 = x 14
<em>(solve)</em> 13.02 = x
<em>(round to the nearest tenth)</em> 13.02 = 13.0
4) Use tan
<em>(Tan = </em><em>) </em>Tan 39 =
<em>(tan of 39 is 0.809)</em><em> </em>0.809 =
<em>(multiply 52 on both sides)</em> 0.809 x 52 = x 52
<em>(solve)</em> 42.068 = x
<em>(round to the nearest tenth)</em> 42.068 = 42.1