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I need help #17-20.

I need help #17-20.-example-1

1 Answer

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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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