Respuesta :

Space

Answer:

B. x = 12

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

Trigonometry

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

Step-by-step explanation:

Step 1: Define

We have a right triangle. Therefore, we can use PT to solve for the missing side.

Step 2: Identify Variables

Leg a = 9

Leg b = x

Hypotenuse c = 15

Step 3: Solve for x

  1. Substitute:                    9² + x² = 15²
  2. Isolate x term:               x² = 15² - 9²
  3. Exponents:                   x² = 225 - 81
  4. Subtract:                       x² = 144
  5. Isolate x:                       x = 12

Answer:

Value of X = 12

Given - A right angle triangle

To find - Value of X

Solution -

using Pythagoras Theorem

(Altitude)^2 + (base)^2 = (Hypotenuse) ^2

(x)^2 + (9)^2 = (15)^2

x^2 + 81 = 225

x^2 = 225 - 81

x^2 = 144

x= root 144

x = 12

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