9514 1404 393
Answer:
2
Step-by-step explanation:
Fill in the argument value and look up the function value on the graph.

Answer:
243
Step-by-step explanation:
3*3*3*3*3=243
I don't think you're stupid. ^^
Let's take the third term, 8. If n=3, then an should be 8.
The first answer gives 15+2.5*3=22.5.
The second answer gives 15.5+2.5=23.
The third answer gives 15-2.5*3=7.5.
The fourth answer gives 15.5-2.5*3=8.
Choice 4 is correct.
Let's try to actually find the equation on our own.
The equation for an arithmetic series is an=a0+dn where a0 is the term that comes before the first term.
The first term given is 13 and it decreases by 2.5 each time so n=-2.5 and the term that would be before 13 is 15.5.
Thus the equation is an=15.5-2.5n
Slope is also known as rise over run -

Here, we have the slope

. This means that the rise is

and the run is

. Since both values are positive, we can say that we go up one and we go right four. When we plot this on a graph (the graph is attached), we get the same exact formula we found. **In the graph, I plotted the line

**. Hope this helped!
Answer 14/10 liters
Step-by-step explanation: add 8 + 6 and then you will have the answer hope its right