Answer:
The size of the population of red squirrels in the UK at the start of 2010 is 3772
Step-by-step explanation:
At the start of 2016 , No. of squirrels = 10000
The rate of decrease is 15% per year.
So, No. of squirrels after x years = 
We are supposed to find the size of the population of red squirrels in the UK at the start of 2010.
So,No. of squirrels after 6 years = 
Hence the size of the population of red squirrels in the UK at the start of 2010 is 3772
Answer:
*3x + 10y = 240*
Step-by-step explanation:
A look at the image attached will provide more clarification
Answer:
Step-by-step explanation:
We can write this expression as
Next, we can distribute the power to each piece inside as there is only one term.
Answer: -3486784401
Step-by-step explanation:
This is a geometric progression and the formula to use to find the nth term will be: = ar^(n-1)
where,
a = 3
r = -9/3 = -3
n = 20
Therefore, ar^(n-1)
= 3 × -3^19
= 3 × -1162261467
= -3486784401
