Respuesta :

Space

Answer:

x = √143

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

Trigonometry

  • [Right Triangles Only] Pythagorean Theorem: a² + b² = c²

Step-by-step explanation:

Step 1: Identify

We are given a right triangle

Step 2: Define variables

Leg a = 1

Leg b = x

Hypotenuse c = 12

Step 3: Solve for x

  1. Substitute:                              1² + x² = 12²
  2. Isolate x term:                        x² = 12² - 1²
  3. Exponents:                             x² = 144 - 1
  4. Subtract:                                 x² = 143
  5. Isolate x:                                 x = √143

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