Answer:
-42
Step-by-step explanation:
Answer: D
Step-by-step explanation:
Answer:
6
Step-by-step explanation:
just a guess
9+3+6+7 = 25
5+5+4+9 = 23
6+8+4+? = 24 ? = 6
When in doubt, graph it.
The 3rd and 4th choices are appropriate.
_____
This is what is known as a "logistic function." It is used to model population growth when there is a resource limit. It starts out exponential, but then slows as it reaches the "carrying capacity" of the environment. The lower asymptote is zero; the upper one is the carrying capacity of the resource--here 15/1 = 15.
18/6
18= the number of trucks
6= the number of hours
18/6= 3 trucks per hour