Equaling the equations, it is found that the cars hit each other at: (-1,-4) and (1,-6).
---------------------------------
For the first car, we have that:
Thus:
---------------------------------
For the second car:
---------------------------------
They meet at the the values of x for which:
Thus:
- When
, they meet at 
- When
, they meet at 
Thus (-1,-4) and (1,-6).
A similar problem is given at brainly.com/question/13308311
Answer: 
Step-by-step explanation:
The Explicit formula in function notation for a geometric series is:
Where 
is the nth term of the sequence, 
is the first term in the sequence and 
is the common ratio.
Given the following geometric serie:
The common ratio is:
And the first term is:
Therefore, substituting values, we get that the Explicit formula that represents this geometric series is:
Answer: Choice B) 3 years
--------------------------------------
Explanation:
The simple interest formula is
i = P*r*t
where,
i = interest
P = principal
r = interest rate in decimal form
t = time in years
In this case,
i = 840
P = 7000
r = 0.04 (move the decimal point 2 spots to the left go to from 4% to 0.04)
t = unknown; we'll leave it as t
Plug the given values above and solve for, or isolate, t
i = P*r*t
840 = 7000*0.04*t
840 = 280*t
840/280 = 280*t/280
3 = t
t = 3
It will take 3 years
