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Can someone help me im looking for the the x
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23 votes
Can someone help me im looking for the the x

Can someone help me im looking for the the x-example-1
User Daren Schwenke
by
3.2k points

1 Answer

6 votes

Answer:

x = 4√5

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

  • a is one leg
  • b is another leg
  • c is hypotenuse

Explanation:

Step 1: Identify Variables

a = 19

b = x

c = 21

Step 2: Solve for x

  1. Substitute [PT]: 19² + x² = 21²
  2. Isolate x term: x² = 21² - 19²
  3. Exponents: x² = 441 - 361
  4. Subtract: x² = 80
  5. Isolate x: x = √80
  6. Simplify: x = 4√5
User Snowdream
by
2.7k points
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