30 divided by 4 equals 7.5 or you could round it up to eight if the answer is supposed to have only one digit.
Answer:
When t=10, the town is predicted to have around 443 acres of wetlands.
At one time, the town had 740 acres of wetlands.
The wetland area in the town decreases by 5% per year.
Step-by-step explanation:
Given

Required
The true statements

We have:

Substitute 10 for t


<em>Hence, (a) is true</em>

We have:

Substitute 740 for f(t)

Divide through by 740

Express 1 as 0.95^0

Cancel out the bases


Hence, the area had 740 acres initially;
(b) is true

We have:

Using the general formula

By comparison:

0.95 < 1 means that:
--- where r = rates

Collect like terms


Express as percentage

Hence, (c) is true

In (a)

Hence, (d) is false

In (c)
---- decrement
Hence, (e) is incorrect
The answer will be 12.4 if you really look at it you can multiply 3 by 2 get 4 add 12 and a decimal
For a function to be odd f(-x)=-f(x).
1) putting x as -x
f(-x)= -x^3+x^2 = -f(x)
Thus, this is an odd function.
2) Following the same procedure,
f(-x)= -x^5+3x^3-2x =-f(x)
Thus, this is an odd function.
3) Again,
f(-x)= -4x-9 = -f(x)
This also is an odd function.
Hope this helps :)