X = first venture, y = second venture, z = third venture
x + y + z = 15,000
x + z = y + 7000
3x + 2y + 2z = 39,000
these are ur equations.....
x + y + z = 15,000
x - y + z = 7000
--------------------add
2x + 2z = 22,000
x + y + z = 15,000....multiply by -2
3x + 2y + 2z = 39,000
-------------------
-2x - 2y - 2z = - 30,000 (result of multiplying by -2)
3x + 2y + 2z = 39,000
------------------add
x = 9,000
2x + 2z = 22,000
2(9000) + 2z = 22000
18,000 + 2z = 22000
2z = 22000 - 18000
2z = 4000
z = 4000/2
z = 2,000
x + y + z = 15,000
9000 + y + 2000 = 15,000
11,000 + y = 15,000
y = 15,000 - 11,000
y = 4,000
first venture (x) = 9,000 <==
second venture (y) = 4,000 <==
third venture (z) = 2,000 <==
        
                    
             
        
        
        
Answer:
Use a calculator solved :)))
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Changing value of "d" changes the vertical shift of the cosine graph.
Step-by-step explanation:
Question says to find about how does your cosine graph change when including the d-value.
General equation of cosine function can be given as:

In that formula, value of  "d" gives vertical shift.
So changing value of "d" changes the vertical shift of the cosine graph.
 
        
             
        
        
        
The answer and explanation in the pic below
Good luck,!
If helped..mark brainliest please ;)
 
        
             
        
        
        
Your Answer would be:
4x2<span> – 9 = (2x - 3)(2x + 3)
</span>
Hope this helps!