Answer:
The money after 3 years is $5819.8735
Step-by-step explanation:
We are given
monthly payment =$75
so, P=75
annuity that earns 48% APR
so, r=48%
Since, it is compounded monthly
so,
%
i=0.04

now, we can use annuity formula
![FV=P[\frac{(1+i)^n-1}{i} ]](https://tex.z-dn.net/?f=FV%3DP%5B%5Cfrac%7B%281%2Bi%29%5En-1%7D%7Bi%7D%20%5D)
where
FV is future value
now, we can plug values
![FV=75[\frac{(1+0.04)^{36}-1}{0.04} ]](https://tex.z-dn.net/?f=FV%3D75%5B%5Cfrac%7B%281%2B0.04%29%5E%7B36%7D-1%7D%7B0.04%7D%20%5D)
we get

The money after 3 years is $5819.8735
Discriminant = b^2 - 4ac, where a, b and c come from the form of the quadratic equation as ax^2 + bx + c
Discriminant = (4)^2 - 4(1)(5)
= 16 - 20
= -4
-4 < 0, therefor there are no roots
(If the discriminant = 0, then there is one root
If the discriminant > 0, there are two roots, and if it is a perfect square (eg. 4, 9, 16, etc.) then there are two rational roots
If the discriminant < 0, there are no roots)
Answer:

Step-by-step explanation:
Using the rule of exponents
×
⇔
, thus
4² ×
=
= 
Answer: 60 devil offspring.
Step-by-step explanation:
The total number of devils in the Island is 80.
Out of this 80, 75% are offspring from the two previous breeding seasons.
This percentage in a whole number is what the question requires.
The number of offspring from previous seasons is:
= Percent of offspring from previous seasons * Total number of devils
= 75% * 80
= 60 devil offspring.