Answer:
elimination anyday
Step-by-step explanation:
there are two 3y terms so they cancel out when using elimination, mark me brainliest plz
 
        
                    
             
        
        
        
In order to reduce ANY fraction to lowest terms, find any common factors 
of the numerator and denominator, and divide them both by it.  If they still 
have a common factor, then divide them by it again.  Eventually, they won't 
have any common factor except ' 1 ', and then you'll know that the fraction is 
in lowest terms.
Do  15  and  40  have any common factors ?
Let's see . . .
The factors of  15  are  1,  3,  <em>5</em>, and  15 .
The factors of  40  are  1,  2,  4,<em>  5</em>,  8,  10,  20, and  40 .
Ah hah !  Do you see that ' <em>5</em> ' on both lists ?  That's a common factor.
So  15/40  is NOT in lowest terms.
Divide the numerator and denominator both by  5 :
       15 / 40  =<em>  3 / 8</em>
3  and  8  don't have any common factor except ' 1 '.  
So  3/8  is the same number as  15/40, but in lowest terms.
        
                    
             
        
        
        
Step-by-step explanation:
sec(x) = 1/cos(x)
cot(x) = cos(x)/sin(x)
sec is smaller than cot, if cos is negative (making sec negative) and sin is negative (making cot positive).
and that is true for the third quadrant.
which is pi < x < 3×pi/2
so, the third answer is right. 
 
        
             
        
        
        
Answer:
A) 
p1 (0,0) p2 (1,2) given from the graph
slope = (y2-y1)/ (x2-x1 )
slope (m) = 2
y = mx+ b
b =0
y = 2x 
b)
x = 0
y = 5 
(0,5)
C)
 gradient = slope 
y = 3x + b
point given (0,12)
y = 3x + 12