Hey there! 
“Which expression is equivalent to b + b – 0.56b?” 
• “b” or any other letter value is considered an “unknown number” so usually we label it/them as an invisible 1
• COMBINE the LIKE TERMS 
(b + b – 0.56b) 
(1b + 1b – 0.56b)
1b + 1b = 2b
2b – 0.56b = 1.44b 
• Therefore, b + b – 0.56b is equivalent to 2b + 0.56b 
Possible answer that you could be looking for: 2b + 0.56b ☑️ 
Good luck on your assignment and enjoy your day! 
~LoveYourselfFirst:)
        
             
        
        
        
Answer:
<u>∠J = 31.06°</u>
Step-by-step explanation:
Taking the inverse sin function :
- sin ∠J = 1.6/3.1
- J = sin⁻¹ (0.516)
- <u>∠J = 31.06°</u>
 
        
             
        
        
        
<span>The sum of the
angle of a triangle is 180 degrees. It is mentioned that Hannah drew a pattern
of equilateral triangles. Equilateral triangle has three equal sides. Also, its
angles are the same, having 60 degrees at each corner of the triangle. The answer
is a. Letter b does not qualify to be an equilateral triangle because 120
degrees times 3 is greater than 180 degrees. Letter c and d exceeds the total
number of angles at 180 degrees.</span>
        
                    
             
        
        
        
Answer:
for Part A
Answer is C.
Step-by-step explanation:

Here the angle, a is 60°, Opposite is 20 and adjacent is x.
Therefore we have,

Making x the subject gives us

Part B
Value of x to the nearest tenth
