Answer:
23040 bats
Explanation:
Let N(t) be the number of bats at time t
We know that exponential function
y = ab^t
According to question
N(t) = ab^t
Where t (in years)
Substitute t=2 and N(2)=180
180 =ab^t ...(1)
Substitute t=5 and N(5)=1440
1440 = ab^5. ..........(2)
Equation (1) divided by equation (2)
180/1440 = ab^2 ÷ ab^5
1/8 = 1/b^3
8 = 2^3
Hence,
1/2^3 = 1/b^3
3/2 = 3/b
Cross multiply
3b = 2×3
3b =6
b = 2
Substitute the values of b in equation (1)
180 = a(2)^2
180 = 4a
a = 180/4
a = 45
Substitute t=9
N(9) = 45(2)^9
N = 45 × 512
N =23040
Hence, after 9 years the expected bats in the colony=23040 bats
Answer:
Hi it's been a long time how are u doing?
Explanation:
Answer:
d
Explanation:
it is when in a story or movie, a character remembers a past event and the author or director explains what they are thinking
It either means he got chores like jobs to do in the house or...it can be some type of gift
