Answer:

Step-by-step explanation:
- The function f(x) shows the number of cell tower users after "x" years from the year 2010.
- Then, the dependent varible of the function f(x) are the number of cell tower users after x years from 2010, and the independent variable of this function, "x", are the years that have passed since 2010, included 2010.
- This means that the independent variable should take the values of the years from 2010, which represent the domain (values that x variable can take), that are all the years between 2010 and 2019 (which is the present year).
Answer:
D
Step-by-step explanation:
3x + 2(x + 1) = 12 ← distribute and simplify left side
3x + 2x + 2 = 12
5x + 2 = 12 ( subtract 2 from both sides )
5x = 10 ( divide both sides by 5 )
x = 2 → D
Answer:
A=3/2
B=-2
Step-by-step explanation:
Answer:
7/9
Step-by-step explanation:
7 divided by 9 is .7777777777....
The choices can be found elsewhere and as follows:
<span>A.Acid(tartness)
B.Tartness(acid)
C.Tartness(lemon)
D.Lemon(acid)
I think the correct answer from the choices is option B. </span>The tartness of a lemon (which depends on the concentration of citric acid) can be represented by Tartness(acid) or tartness as a function of acidity.