Respuesta :

Space

Answer:

h = 3100

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

Step-by-step explanation:

Step 1: Define

2h = 81² - 19²

Step 2: Solve for h

  1. Evaluate exponents:                                                                                         2h = 6561 - 361
  2. Subtract:                                                                                                            2h = 6200
  3. [Division Property of Equality] Divide 2 on both sides:                                  h = 3100
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Answer:

2h = 81^2 - 19^2

2h = 6561 - 361

2h = 6200

h = 6200/2

h = 3100

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