Answer:
x = 4√5
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
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>
Leg <em>a</em> = 8
Leg <em>b</em> = 4
Hypotenuse <em>c</em> = <em>x</em>
<em />
<u>Step 2: Solve for </u><em><u>x</u></em>
- Substitute in variables [Pythagorean Theorem]:                                            8² + 4² = x²
- Evaluate exponents:                                                                                         64 + 16 = x²
- Add:                                                                                                                   80 = x²
- [Equality Property] Square root both sides:                                                    √80 = x
- Rewrite:                                                                                                             x = √80
- Simplify:                                                                                                             x = 4√5
 
        
             
        
        
        
irrational number, any real number that cannot be expressed as the quotient of two integers.
Any number that can be written as a fraction with integers is called a rational number . For example, 17 and −34 are rational numbers. (Note that there is more than one way to write the same rational number as a ratio of integers.
1st Is rational 
2nd one is irrational
3rd is irrational 
4th is rational 
 
        
             
        
        
        
Newton discovered that sunlight has many colors when it passes through a prism.
I hope this helped! Mark me Brainliest! :) -Raven❤️
        
                    
             
        
        
        
A is the answer I would say