Answer:

Step-by-step explanation:
The are is the whole area minus the inner:
(z+4)(z+4)-(z)(z)
Expand:
z^2+8z+16-z^2
Simplify:
8z+16
Answer:
8z+16 OR 8(z+2)
Answer:
the third number is 11
Step-by-step explanation:
the first number is 5 so the second number since its five times the first is 25 and the third being 14 less then the second is 11
so 5+25+11= 41
Answer:
the answer is a
Step-by-step explanation:
Answer:
The approximate number of years until the species is extinct will be 9 years
Step-by-step explanation:
We are given
The population of a species is modeled by the equation

where
t is the number of years
we have to find time when species extinct
we know that any species will be extinct only if population of that species becomes 0
so, we can set P(t)=0
and then we can solve for t

we can factor it


we get t value as imaginary for this equation



So,
the approximate number of years until the species is extinct will be 9 years