Answer:
r=-7/17
Step-by-step explanation:
6r-7=23r=
We move all terms to the left:
6r-7-(23r)=0
We add all the numbers together, and all the variables
-17r-7=0
We move all terms containing r to the left, all other terms to the right
-17r=7
r=7/-17
r=-7/17
Position in the sequence triangular number relation
1 1 1 = 1*(1+1)/2
2 3 3 = 2(2+1)/2
3 6 6 = 3(3+1)/2
4 10 10 = 4(4+1)/2
5 15 15= 5(5+1)/2
Call n the position in the sequence, then the triangular number is: n(n+1)/2
Are they doubling from the previous rabbits or are the same 2 rabbits doubling? If it's previous, it's exponential. If it's same, linear.
Set the equal to each other
2x-4=4x-10
6=2x
x=3
y=2(3)-4
=6-4
y =2