Answer:
He can expect $ 13,050.16 ( approx )
Step-by-step explanation:
Given,
The original cost of the car, P = $ 25,000
Annual rate of decreasing, r = 15 %,
Time, t = 4 years ( From 2013 to 2017 ),
Thus, the new cost of the car after 4 years,
Hence, the he can expect $ 13050.16 value of his car in the year 2017.
<u>68.2°</u>
This is a right triangle, so we can use SIN,COS,TAN to solve for the angle.
We want ∠YXZ
THe side opposite to the angle is given as 20
The side adjacent to the angle is given as 8
Which trig ratio relates "opposite" and "adjacent"??
It is Tan!!
Thus, we can write:
THis is the angle
θ = π + periods of 2π
Sin (π + 2π) = 0
Cos (π + 2π) = -1
Tan (π + 2π) = 0
Sin (θ)=0 implies that θ only can be 0 or π plus periods of 2π:
θ = 0+2π
θ = π+2π
For Cos(θ) the values only can be:
Cos (0+2π) = 1 and
Cos (π+2π) = -1
from this, only Cos (π+2π) < 0
So θ only can be θ=π+2π
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