<span>10 +- sqrt( 100 + 60 ) / 6
A is the correct answer</span>
Answer:
D
Step-by-step explanation:
Exponential equation takes the form
where
a is the initial value ( a ≠ 0), and
b is the base ( b ≠ 1)
The equation given can be written as
. Thus, it is an exponential equation.
So a = 1 and b = 3.1
Thus we can say that the initial value = 1 and the base is 3.3
Answer:
x = 88.2
Step-by-step explanation:
The angle at the top of the triangle = 90° - 10° = 80°
and the left side of the triangle is x ( opposite sides of a rectangle )
Using the tangent ratio in the right triangle
tan80° =
= ![\frac{500}{x}](https://tex.z-dn.net/?f=%5Cfrac%7B500%7D%7Bx%7D)
Multiply both sides by x
x × tan80° = 500 ( divide both sides by tan80° )
x =
≈ 88.2
A histogram is like a bar graph without gaps between the rectangles. So you first create a bar graph with your labels and title, then you get rid of the gaps between the rectangles.
18000 represents the price of the new car.
The value of the car in 6 years can be found by substituting 6 for the variable t, as follows:
![V = 18000(1-.12)^6\\V = 18000(0.4644)\\](https://tex.z-dn.net/?f=V%20%3D%2018000%281-.12%29%5E6%5C%5CV%20%3D%2018000%280.4644%29%5C%5C)
In 6 years, it will be worth around $8359.27.
The equation for the car worth $20000 is this:
![V = 20000(1-.15)^6\\V = 20000(0.3771)\\](https://tex.z-dn.net/?f=V%20%3D%2020000%281-.15%29%5E6%5C%5CV%20%3D%2020000%280.3771%29%5C%5C)
In 6 years, the other car will be worth $7542.99, so the car worth $18000 will have more value in 6 years.