Answer:
The rule says that to find the number of years required to double your money at a given interest rate, you just divide the interest rate into 72. For example, if you want to know how long it will take to double your money at eight percent interest, divide 8 into 72 and get 9 years.
Step-by-step explanation:
Answer:
The length of the AR is
or
units.
Step-by-step explanation:
Given the endpoints of a line segment AR
We can calculate the length of AR using the formula

In our case,
Substituting (x₁, y₁) = (8, -2) and (x₂, y₂) = (-4, 1) in the formula


∵ Apply rule: 



Apply radical rule: ![\sqrt[n]{ab}=\sqrt[n]{a}\sqrt[n]{b}](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Bab%7D%3D%5Csqrt%5Bn%5D%7Ba%7D%5Csqrt%5Bn%5D%7Bb%7D)
Apply radical rule: ![\sqrt[n]{a^n}=a](https://tex.z-dn.net/?f=%5Csqrt%5Bn%5D%7Ba%5En%7D%3Da)

Therefore, the length of the AR is
or
units.
Answer:start fraction 1 over 16 end fraction.
Step-by-step explanation:
C. It is a basic parabola