Answer:
Part A)
1) 
2) 
Part B)
1) 
2) 
Step-by-step explanation:
Part 1) x and y vary inversely and x=50 when y=5 find y when x=10 what is k?
we know that
A relationship between two variables, x, and y, represent an inverse variation if it can be expressed in the form 
or 
step 1
<u>Find the value of k</u>
x=50 when y=5
substitute the values
------> 
----->
The equation is equal to
or 
step 2
<u>Find y when x=10</u>
substitute the value of x in the equation and solve for y
Part B) x and y vary directly and x=6 when y=42 find k what is y when x=12
we know that
A relationship between two variables, x, and y, represent a direct variation if it can be expressed in the form 
or 
step 1
<u>Find the value of k</u>
x=6 when y=42
substitute the values
------> 
----->
The equation is equal to
or 
step 2
<u>Find y when x=12</u>
substitute the value of x in the equation and solve for y
Answer:
Below.
Step-by-step explanation:
It is a polynomial of degree 3.
Answer:
R'(3,-4)
Step-by-step explanation:
we know that
When you reflect a point across the line y = x, the x-coordinate and y-coordinate change places
so
The rule of the reflection across the line y=x is equal to
(x,y) ------> (y,x)
we have
R(-4,3) ------> R'(3,-4)
Five hundred six thousand seven hundred nine.
Answer:
The Customer Acquisition Cost for each customer in demographic group 1
The correct option is c
The Customer Acquisition Cost for Group 2
The correct option is b
Step-by-step explanation:
From the question we are told that
The marketing expenses per month for targeting the first group is 
The marketing expenses per month for targeting the second group is 
The number of customers for the demography of group 1 that will be attracted is N = 1000
The number of customers for the demography of group 2 that will be attracted is M = 1500
Generally the customer acquisition cost for group 1 is
=> 
=> 
Generally the customer acquisition cost for group 2 is
=> 
=> 
