Answer:
9600
Step-by-step explanation:
y varies inversely with the square of x
y=k/(x^2)
for some non-zero constant k
y=6 when x=4
6=k/(4^2)
k=96
y=96/(x^2)
x=0.1
y=96/(0.1^2)
y=9600
 
        
             
        
        
        
What following function tool? 
 
        
             
        
        
        
Answer:
Step-by-step explanation:
I think your answer is a
 
        
             
        
        
        
The triangle angle sum theorem states that the 3 angles within the triangle must have a sum that equals 180 degrees.
 
        
             
        
        
        
Answer:
Julie need to sell at least 45 shirts to break even.
Step-by-step explanation:
The  selling cost of each shirt = $ 20
Cost of each shirt = $6
The fixed cost per month = $420
Number of shirts she can make = 80
Hence, the <u>cost of making 80 shirts</u> =  80 x $6  = $480
So, her total capital investment of the month
 = Cost of shirts made + Fixed cost = $420 + $480 = $900
Now, let us assume she sell k number of shirts. 
⇒ $20 x k  = $900
or, k = 900 / 20 = 45 
or, k = 45
Hence, Julie need to sell at least 45 shirts to break even.