To find the value of the calculator after 5 years, you need to find how much the price of the calculator drops each year. From years 0 to 2, it seems that the price of the calculator has dropped by some amount of money x. To find how much the calculator drops each year, first you will need to subtract 160 from 225 (225-160) to get 65. Next, you need to divide 65 by 2 (65/2) to get $32.50.
I believe that in order to find the price after 5 years, you will need to multiply 32.5 by 5 (32.5*5) to get $162.50. Next you would subtract $162.50 from $225 (225.00-162.50) to get $62.50.
So, the price of the calculator after 5 years is $62.50!
I hope this helps!
Thomas had 5/12 of a pie. his friend, Katelyn ate 1/6 of his pie. How much is left?
Answer:
![x(35)\approx 11.8](https://tex.z-dn.net/?f=x%2835%29%5Capprox%2011.8)
Step-by-step explanation:
<u>Modeling With Functions
</u>
We have a table of values of speeds vs distance taken for a car to stop. We are required to find a model that uses the square root and fits the given data to predict other values of d as a function of v.
By the nature of the problem, we can know that for v=0, d must be 0 too. So our model won't include a vertical shift or independent term. Being v the speed of the car and x the distance it takes to stop, we use the following model
![x(v)=A\sqrt{v}](https://tex.z-dn.net/?f=x%28v%29%3DA%5Csqrt%7Bv%7D)
We must find A to make the function fit the data. Let's use the first point (v,x); (20,9)
![9=A\sqrt{20}](https://tex.z-dn.net/?f=9%3DA%5Csqrt%7B20%7D)
Solving for A
![\displaystyle A=\frac{9}{\sqrt{20}}](https://tex.z-dn.net/?f=%5Cdisplaystyle%20A%3D%5Cfrac%7B9%7D%7B%5Csqrt%7B20%7D%7D)
![A\approx 2](https://tex.z-dn.net/?f=A%5Capprox%202)
Then we have
![x(v)=2\sqrt{v}](https://tex.z-dn.net/?f=x%28v%29%3D2%5Csqrt%7Bv%7D)
Evaluating for v=35
![x(35)=2\sqrt{35}=11.83](https://tex.z-dn.net/?f=x%2835%29%3D2%5Csqrt%7B35%7D%3D11.83)
![\boxed{x(35)\approx 11.8}](https://tex.z-dn.net/?f=%5Cboxed%7Bx%2835%29%5Capprox%2011.8%7D)
Last option
Answer:
isn't it 28
Step-by-step explanation: