Answer:
y = -8x + 12
Step-by-step explanation:
Slope intercept form: y = mx + b
m ---> Slope   & b ----> y-intercept 
8x + y = 12
Subtract 8x from both sides
y = -8x + 12
 
        
             
        
        
        
Answer:
If 
y
 varies inversely as 
x
then
XXX
x
⋅
y
=
c
 for some constant 
c
We are told when 
x
=
2
 then 
y
=
15
So
XXX
2
⋅
15
=
c
XXX
⇒
c
=
30
and
XXX
x
⋅
y
=
30
Therefore when 
y
=
3
XXX
x
⋅
3
=
30
XXX
→
x
=
10
 
Step-by-step explanation:
 
        
             
        
        
        
Answer:divide the opposite sides, by the length of the hypotenuse. To get the cosine, divide the length of the adjacent side,by the length of the hypotenuse.
Step-by-step explanation:
divide the opposite sides, by the length of the hypotenuse. To get the cosine, divide the length of the adjacent side,by the length of the hypotenuse.
 
        
             
        
        
        
Answer:
x = -7/2 multiplicity 2.
Step-by-step explanation:
  4x^2 + 28x + 49 = 0
 (2x + 7)(2x + 7) = 0
This is a perfect square.
2x + 7 = 0, so:
x = -7/2 multiplicity 2.