Answer:
11n
Step-by-step explanation:
The expression is 7n + 4n. Since 7n and 4n are like terms (they both are variables with n), we can combine them so the expression becomes 7n + 4n = 11n.
Answer:
It is arithmetic progression
Step-by-step explanation:
If wwe see, the numbers are going down by 3 each time, therfore the common difference is 3
Answer:
x=2, y=3
Step-by-step explanation:
If its perimeter, it should be quite easy to find. Just add 12+9+15. Which equals 36. So the perimeter is 36 inches. -Hope it helps!
1: slope = 2/1 or 2
2: slope = 5/-5
3: slope = 3/2
4: slope = 7/-4
5: slope = 3/5
6: slope = 2/-8
7: slope = 6/2 or 3
8: slope = 2/-4
9: slope = 1/6
