Respuesta :

Space

Answer:

[tex]\displaystyle x \approx 8.2[/tex]

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

  1. Brackets
  2. Parenthesis
  3. Exponents
  4. Multiplication
  5. Division
  6. Addition
  7. Subtraction
  • Left to Right  

Equality Properties

  • Multiplication Property of Equality
  • Division Property of Equality
  • Addition Property of Equality
  • Subtraction Property of Equality

Trigonometry

[Right Triangles Only] SOHCAHTOA

[Right Triangles Only] sinθ = opposite over hypotenuse

Step-by-step explanation:

Step 1: Identify Variables

Angle θ = 23°

Opposite Leg = x

Hypotenuse = 21

Step 2: Solve for x

  1. Substitute in variables [sine]:                                                                         [tex]\displaystyle sin(23^\circ) = \frac{x}{21}[/tex]
  2. [Multiplication Property of Equality] Isolate x:                                              [tex]\displaystyle 21sin(23^\circ) = x[/tex]
  3. Rewrite:                                                                                                           [tex]\displaystyle x = 21sin(23^\circ)[/tex]
  4. Evaluate:                                                                                                         [tex]\displaystyle x = 8.20535[/tex]
  5. Round:                                                                                                             [tex]\displaystyle x \approx 8.2[/tex]

Otras preguntas