By definition we have that the compound interest formula is:
![A=P(1+\frac{r}{n})^{nt}](https://tex.z-dn.net/?f=%20A%3DP%281%2B%5Cfrac%7Br%7D%7Bn%7D%29%5E%7Bnt%7D%20%20%20)
Where
A: amount
P: principal
r: interest rate (decimal)
n: number of times interest is compounded per year
t: time years
Substituting values we have:
![A=500(1+\frac{0.018}{12})^{12(4)}\\A = 537.3](https://tex.z-dn.net/?f=%20A%3D500%281%2B%5Cfrac%7B0.018%7D%7B12%7D%29%5E%7B12%284%29%7D%5C%5CA%20%3D%20537.3%20%20)
Answer:
after 4 years she will have about:
![y = 537.3](https://tex.z-dn.net/?f=%20y%20%3D%20537.3%20)
Answer:
Well you can either straight up subtract from the total degrees of a triangle using the sum of both of the given angles, which would equal x, or you can make an equation. I’ll do both.
180-78-51=51, x=51
78+51+x=180
129+x=180
x=180-129
x=51
Answer:
x = 27
Step-by-step explanation:
look at the screenshot below it'll explain the answer
It is 120°, rotate a triangle each time adding 60 to get 120 degrees.