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blagie [28]
3 years ago
13

I need help #17-20.

Mathematics
1 answer:
AVprozaik [17]3 years ago
5 0
17) let the unknown be x.

tanx = 3.5

x = tan⁻¹(3.5)    use your calculator

x ≈ 74.05°            x ≈ 74.1 to the nearest tenth

18)
      tan 34 = x/20

       20*tan34 = x

        20*(0.6745) ≈ x

                   13.49 ≈x

                      x ≈ 13.49      x ≈ 13.5 to the nearest tenth

19)   tan2° = 2/x

           x   = 2/tan2°

             x =  2/0.0349
        
               x ≈57.31               x ≈ 57.31 to the nearest tenth

20)  tanx = 90

            x = tan⁻¹(90)   Use your calculator

              x ≈ 89.36°   
          
                x ≈ 89.4°  to the nearest tenth.
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