The slope is a negative slope and the y-intercept is (0,2).
        
             
        
        
        
Answer:
A = 38°
Step-by-step explanation:
We are going to use cosine law to find angle A where
a = 4.7 
b = 3.9 m
c = 2.9 m

or

cos A = [(4.7)^2 + (3.9)^2 - (2.9)^2]/2(4.7)(3.9)
 = 28.89/36.66
 = 0.788
A = arccos(0.788) = 38°
 
        
             
        
        
        
5. . 1
---- - -----
6. . 2
5. . 3
----- - -----
6. . 6 
5-3
-------
6
2
-----
6
= 1/3
B
        
             
        
        
        
Answer:
A
Step-by-step explanation:
sin(60) can be simplified into sqrt(3)/2.
 
        
             
        
        
        
Divide all the terms by 2:
2xy + 12z + 3xy - z