The second answer is D) it will increase 8 times
        
                    
             
        
        
        
The opposite of a nonzero integer is the inverse of it. So to get the opposite, change the sign.
For example: 
What's the opposite of 3?
-3.
I hope that I explained well :)
 
        
                    
             
        
        
        
Answer:
∠F ≈ 53°
General Formulas and Concepts:
<u>Trigonometry</u>
- sin∅ = opposite over hypotenuse
- sin inverse evaluates "backward" to find the measure angle
Step-by-step explanation:
<u>Step 1: Define</u>
Looking at ∠F
opposite leg of ∠F = ED = 8
hypotenuse = FE = 10
<u>Step 2: Find m∠F</u>
- Substitute:                    sin∠F = 8/10
- Simplify:                        sin∠F = 4/5
- Take sin inverse:          ∠F = sin⁻¹(4/5)
- Evaluate:                       ∠F = 53.1301°
- Round:                           ∠F ≈ 53°
 
        
             
        
        
        
Answer:
x=30
Step-by-step explanation:
Angle sum in a triangle=180
x+3x+2x=180
6x=180
x=30