I have the answer attached.
Answer:
=0.00015241579
Step-by-step explanation:
Use the formula for geometric sequences:
=

Substitute 1 in for
, -1/3 in for r, and 9 in for n
=(1)(-1/3^9-1)
=(1)(-1/3^8)
=(1)(0.00015241579)
=0.00015241579
Hope this helps! :)
It should just be 2x-5= 125
Then add 5 to both sides
2x= 130
Divide by 2
X= 65
Answer:
12 cm of coastline
Step-by-step explanation:
Multiply the years (factor) by the receding amount, 3cm, (constant) BAM answer.