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pshichka [43]
4 years ago
6

PLEASE HELP ILL GIVE BRAINLIEST !! FAKE ANSWERS WILL GET REPORTED.

Mathematics
1 answer:
Simora [160]4 years ago
5 0

Answer:

b ≈ 3.9

General Formulas and Concepts:

<u>Pre-Algebra</u>

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<u> </u>

<u>Trigonometry</u>

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

  • a is a leg
  • b is another leg
  • c is the hypotenuse<u> </u>

Step-by-step explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

<em>a</em> = 1

<em>c</em> = 4

<u>Step 2: Solve for </u><em><u>b</u></em>

  1. Substitute in variables [Pythagorean Theorem]:                                            1² + b² = 4²
  2. Evaluate exponents:                                                                                         1 + b² = 16
  3. [Subtraction Property of Equality] Subtract 1 on both sides:                         b² = 15
  4. [Equality Property] Square root both sides:                                                    b = √15
  5. [√Radical] Evaluate:                                                                                         b = 3.87298
  6. Round:                                                                                                               b ≈ 3.9
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