Complete Question 
If w'(t) is the rate of growth of a child in pounds per year, what does 
 represent?
  represent? 
a) The change in the child's weight (in pounds) between the ages of 4 and 7. 
b) The change in the child's age (in years) between the ages of 4 and 7.
c) The child's weight at age 7. 
d) The child's weight at age 4. The child's initial weight at birth.
Answer:
The correct option is  option a
Step-by-step explanation:
From the question we are told that 
         represents the rate of growth of a child in
 represents the rate of growth of a child in   
So       will be in
  will be in  
Which then mean that this   the change in the weight of the child between the ages of
  the change in the weight of the child between the ages of   years
 years 
    
 
        
             
        
        
        
Answer:
 B = 1/2 h(b1+b2)
Step-by-step explanation:
Hope this  helped :( ?
 
        
             
        
        
        
What are you trying to ask?
I might be able to answer the question correctly if you'd be more specific about the question.
 
        
             
        
        
        
Answer:
The midpoint between the joining points C and D is (2, -3)
Step-by-step explanation:
How to find a midpoint
- 1: Label the coordinates(x₁,y₁) and (x₂,y₂).
- 2: Input the values into the formula.
- 3: Add the values in the parentheses and divide each result by 2.
- 4: The new values form the new coordinates of the midpoint.
Suppose we have a line segment and want to cut that section into two equal parts. To do so, we need to know the center. We can achieve this by finding the midpoint. You could measure with a ruler or just use a formula involving the coordinates of each endpoint of the segment. The midpoint is simply the average of each coordinate of the section, forming a new coordinate point. We shall illustrate this below.
Midpoint formula
If we have coordinates (x₁,y₁) and (x₂,y₂), then the midpoint of these coordinates is determined by (x₁ + x₂)/2, (y₁ + y₂)/2. This forms a new coordinate you can call (x₃,y₃).  It is possible to divide a line segment into any given ratio, not just 1:1.
 
        
             
        
        
        
Answer:
4/5 divided by 4 is 1/5
Step-by-step explanation: