Answer:
Her monthly principal payment is D: $579.81 and monthly interest payment is 0.4375.
Step-by-step explanation:
Ok, in order to calculate the monthly principal and interest payment, we can use this relatively simple equation. The equation is:
![M=P\frac{r(1+r)^{n} }{((1+r)^{n}-1) }](https://tex.z-dn.net/?f=M%3DP%5Cfrac%7Br%281%2Br%29%5E%7Bn%7D%20%7D%7B%28%281%2Br%29%5E%7Bn%7D-1%29%20%7D)
Where variables represent the following:
M is your monthly payment.
P is your principal.
r is your monthly interest rate, calculated by dividing your annual interest rate by 12.
n is your number of payments (the number of months you will be paying the loan throughout the 30 years)
Then, in this case:
M=?
P=$105,000
5.25%=5.25/100=0.0525, then ![r=\frac{0.0525}{12} =0.004375](https://tex.z-dn.net/?f=r%3D%5Cfrac%7B0.0525%7D%7B12%7D%20%3D0.004375)
![n=12*30=360](https://tex.z-dn.net/?f=n%3D12%2A30%3D360)
So,
$
Solving this,
$
$
$
$
Her monthly principal payment is $579.81.
Let's check the first polynomial , that is
![P(x)= x^3 -3x^2 -5x+15](https://tex.z-dn.net/?f=%20P%28x%29%3D%20x%5E3%20-3x%5E2%20-5x%2B15%20)
We need to factor it first and for that we have to do grouping and factoring .
![P(x) = x^2(x-3)-5(x-3) \\ P(x) = (x^2 -5)(x-3)](https://tex.z-dn.net/?f=%20P%28x%29%20%3D%20x%5E2%28x-3%29-5%28x-3%29%20%5C%5C%20P%28x%29%20%3D%20%28x%5E2%20-5%29%28x-3%29%20)
TO find the roots, we need to set P(x) to 0, that is
![(x^2 -5)(x-3)=0 \\ x^2 - 5= 0 , x-3 =0 \\ x^2 = 5 , x=3 \\ x = \pm \sqrt{5} , x=3](https://tex.z-dn.net/?f=%20%28x%5E2%20-5%29%28x-3%29%3D0%20%5C%5C%20x%5E2%20-%205%3D%200%20%2C%20x-3%20%3D0%20%5C%5C%20x%5E2%20%3D%205%20%2C%20x%3D3%20%5C%5C%20x%20%3D%20%5Cpm%20%5Csqrt%7B5%7D%20%2C%20x%3D3%20)
SO the correct option is A .
Answer:
answer is atleast 2
Step-by-step explanation:
Answer:
yes, they can become they're still counting numbers
Answer:
Please show the diagram
Step-by-step explanation: