2 or 3 I think is the answer for number 5
        
                    
             
        
        
        
Answer:
-15
General Formulas and Concepts:
<u>Pre-Algebra</u>
Order of Operations: BPEMDAS
- Brackets
- Parenthesis
- Exponents
- Multiplication
- Division
- Addition
- Subtraction
Step-by-step explanation:
<u>Step 1: Define</u>
(4x + 2)(x - 5) / 2
x = 2
<u>Step 2: Evaluate</u>
- Substitute:                             (4 · 2 + 2)(2 - 5) / 2
- Parenthesis - Multiply:          (8 + 2)(2 - 5) / 2
- Parenthesis - Add:                10(2 - 5) / 2
- Parenthesis - Subtract:         10(-3) / 2
- Multiply:                                 -30 / 2
- Divide:                                    -15
 
        
                    
             
        
        
        
Answer:
D=90° E=103° F=77°
Step-by-step explanation:
D+90°=180°
D=90°
F+103°=180°
F=77°
E + F=180°
E=103°
 
        
                    
             
        
        
        
Answer:
The quadratic equation is x^2 + 4x - 32 = 0
Step-by-step explanation:
(x - 4)(x+8) = 0
x^2 + 4x - 32= 0
 
        
                    
             
        
        
        
Answer:
1/6 or depending how many sides it has
Step-by-step explanation: