Answer:
y = 2.50x + 10
Step-by-step explanation:
 
        
             
        
        
        
Step-by-step explanation:
if you're looking for x 
x=180-42-51= 87°
and if you're looking for D
D= 180-42= 138°
 
        
             
        
        
        
Let's simplify step-by-step.
−3x2−5x2(4x3−x2)(2)
Distribute:
=−3x2+−40x5+10x4
Answer:
=−40x5+10x4−3x2
 
        
             
        
        
        
Answer:
40
Step-by-step explanation:
ABD-CBD=ABD
70-30=40
 
        
                    
             
        
        
        
Answer: 0.4^3
Step-by-step explanation:
you just count how many times you multiply 0.4 and use that number to be the exponents