Answer:
the answer is 7 i believe
 
        
             
        
        
        
Answer:
a_n = 2.2 + 0.6 n
a_50 = 32.2
Step-by-step explanation:
What's the common difference of this series?


Common difference =  .
.
Expression for the nth term:

n = 50 for the fiftieth term. Therefore
 .
.
 
        
             
        
        
        
answer:
no, it does not represent a proportional relationship because it has a y-intercept therefore it won’t go through the origin.
 
        
                    
             
        
        
        
Answer:

Step-by-step explanation:
Two lines are given to us which are perpendicular to each other and we need to find out the value of a . The given equations are ,
 
 
 
 
Step 1 : <u>Conver</u><u>t</u><u> </u><u>the </u><u>equations</u><u> in</u><u> </u><u>slope</u><u> intercept</u><u> form</u><u> </u><u>of</u><u> the</u><u> line</u><u> </u><u>.</u>
 
 
and ,
 
 
Step 2: <u>Find </u><u>the</u><u> </u><u>slope</u><u> of</u><u> the</u><u> </u><u>lines </u><u>:</u><u>-</u>
Now we know that the product of slope of two perpendicular lines is -1. Therefore , from Slope Intercept Form of the line we can say that the slope of first line is ,
 
 
And the slope of the second line is ,
 
 
Step 3: <u>Multiply</u><u> </u><u>the </u><u>slopes </u><u>:</u><u>-</u><u> </u>
 
 
Multiply ,
 
 
Multiply both sides by a ,
 
 
Divide both sides by -1 ,
 
 
<u>Hence </u><u>the</u><u> </u><u>value</u><u> of</u><u> a</u><u> </u><u>is </u><u>9</u><u> </u><u>.</u>