<span>$125 is to be paid during the 6th month.</span>
        
             
        
        
        
Answer:
(-1,-8)
Step-by-step explanation:
 
        
             
        
        
        
Answer:
a) 
b) 
c) term number 17 is the one that gives a value of 40
Step-by-step explanation:
a) 
The sequence seems to be arithmetic, and with common difference d = 3.
Notice that when you add 3 units to the first term (-80, you get :
-8 + 3 = -5
and then -5 + 3 = -2 which is the third term.
Then, we can use the general form for the nth term of an arithmetic sequence to find its simplified form:

That in our case would give: 

b)
Therefore, the term number 20 can be calculated from it:

c) in order to find which term renders 20, we use the general form we found in step a):

so term number 17 is the one that renders a value of 40
 
        
             
        
        
        
Answer:
3.75 i think c:
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer: 
17. z=39/sin45=
     y=39/tan60=
     x=y/sin60=
19. x= =6
=6
     y=2x=12
     z=
Step-by-step explanation:
17. 
because:sin45=39/z    
so:     z=39/sin45=
then: tan60=39/y
so:    y=39/tan60=
last:  sin60=y/x
so:    x=y/sin60=
19. 
because: tan60= /x
/x
so:            x= =6
=6
then:        sin30=x/y
so:            y=x*sin30=2x=12
last:          sin45=y/z
so:            z=sin45*y=