Answer:
Add the numbers together and divide by the number of numbers. (The sum of values divided by the number of values).
Step-by-step explanation:
 
        
                    
             
        
        
        
The formula for average velocity between two times t1 and t2 of the position function f(x) is (f(t2)-f(t1)) / (t2-t1)
Plugging the values in for the first time period we get (f(2.5)-f(2)) / (2.5-2)
=> (f(2.5)-f(2)) / 0.5
f(2) will be the same for all 4 time periods and is 
48(2)-16(2)^2 = 32
Now we plugin the other values 
f(2.5) = 48(2.5)-16(2.5)^2 = 20
f(2.1) = 48(2.1)-16(2.1)^2 = 30.25
etc. 
f(2.05) = 31.16
f(2.01) = 31.8384
Now plug these values into the formula 
(20-32)/0.5 = -24
(30.25-32)/0.1 = -17.5
etc. 
= -16.8
= -16.16
Final answer:
2.5s => -24 ft/s
2.1s => -17.5 ft/s
2.05 => -16.8 ft/s
2.01 => -16.16 ft/s
Hope I helped :)
        
             
        
        
        
Answer:
x=6
Step-by-step explanation:
3+x=9
-3    -3
x=6
 
        
                    
             
        
        
        
The function

is a parabola concave up, whose solutions are

from here, you can use the quadratic formula

to find that the solutions of the parabola are 
So, the parabola is positive if 
 (which wouldn't make sense in our case) or 
So, if Tanya caters 25 meals she breaks even, and starting with the 26th meal she will begin to profit.