Answer:
5n^2+(4n)-1
Step-by-step explanation:
(5n-1)(n+1)=0
Lets find <em>n.</em>
(5n-1)(n+1)=0
FOIL it.
5n^2+5n-1n-1
Add/Substract similar factors
5n^2+(5n-1n)-1
5n^2+(4n)-1
Thats your answer.
Step-by-step explanation:
The y intercept (when x=0) is 40
the slope is 15 ( slope= rise/run= 15/1=15)
therefore, the equation of the line is y=15x+40
If four coordinates are given then:-
- Find length of the sides using distance formula

- Now break down into two triangles .
- Use herons formula and find areas of the triangles .add them and get the area
Answer:
9+1=10 following bodmas rule