The exponential equation (in thousands) is:
![V = 28 e^{-rt}](https://tex.z-dn.net/?f=V%20%3D%2028%20e%5E%7B-rt%7D)
plug in t=3 yrs, and solve for 'r'.
![14 = 28 e^{-3r} \\ \\ \frac{1}{2} = e^{-3r} \\ \\ ln(\frac{1}{2}) = -3r \\ \\ r = \frac{ln(\frac{1}{2})}{-3} = 0.231 = 23.1%](https://tex.z-dn.net/?f=14%20%3D%2028%20e%5E%7B-3r%7D%20%5C%5C%20%20%5C%5C%20%5Cfrac%7B1%7D%7B2%7D%20%3D%20e%5E%7B-3r%7D%20%20%5C%5C%20%20%5C%5C%20ln%28%5Cfrac%7B1%7D%7B2%7D%29%20%3D%20-3r%20%5C%5C%20%20%5C%5C%20r%20%3D%20%5Cfrac%7Bln%28%5Cfrac%7B1%7D%7B2%7D%29%7D%7B-3%7D%20%3D%200.231%20%3D%2023.1%25)
Find value of car when t = 10
Answer:
9
Step-by-step explanation:
I think these two triangles are similar so UT is similar with UC and US is similar with BU after that you should do it 12-BU is it enough?
Answer: the third angle is 106 degrees.
The base angles are 37 degrees each.
Step-by-step explanation:
In an isosceles triangle, the base angles are equal.
Let x represent the measure of each of the base angles.
The third angle in an isosceles triangle is 32 more than 2 times as large as each of the two base angles. It means that the measure of the third angle would be
(2x + 32) degrees
The sum of the angles inna triangle is 180 degrees. It means that
x + x + 2x + 32 = 180
4x = 180 - 32
4x = 148
x = 37
The third angle is
2x = 32 = (2 × 37) + 32
= 74 + 32 = 106
Answer:
x equals y minus one
Step-by-step explanation:
= means equals
- is minus
x and y cannot be put into any other (word) form
hope this helps:)
Answer:
Number of books sold = 14.75*x
Step-by-step explanation: