Respuesta :

Space

Answer:

A. 13.3

General Formulas and Concepts:

Pre-Algebra

  • Order of Operations: BPEMDAS
  • Equality Properties

Trigonometry

  • tan∅ = opposite over adjacent

Step-by-step explanation:

Step 1: Set up equation

tan55° = 19/x

Step 2: Solve for x

  1. Multiply x on both sides:                    xtan55° = 19
  2. Divide tan55° on both sides:             x = 19/tan55°
  3. Evaluate:                                             x = 13.3039
  4. Round:                                                x ≈ 13.3

And we have our final answer!

blackbelturjit

Answer:

13.3

Step-by-step explanation:

This is trigonometry

So for this one, we use a basic ratio. We need to use 19 and 55 degrees for the answer. We are given that the leg adjacent to the 55-degree angle is x and the opposite leg to the 55-degree angle is 19.

So we use tangent(opposite leg/adjacent leg) for this (TOA of SOH CAH TOA)

tan(55 degrees)=19/x

  SO then solve for x and then evaluate using a scientific calculator and you should get 13.30394322

      13.3

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