The price of a car devaluated from 3500 to 2700 what is the percent of decrease of the car
2 answers:
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Answer: The function is EVEN.
Step-by-step explanation:
For this exercise it is important to remember that:
1. A function f(x) is even if and only if:
for all "x"
2. A function f(x) is odd if and only if:
for all "x"
So knowing that, and given the following function k(x):
You can plug in for "x", order to know if this is even. Then, you get:
Therefore, since:
You can determine that that the given function is Even.
Answer:
cos(P) = 20/29
Step-by-step explanation:
Given the following information:
- ∠R=90°,
- QP = 29
- RQ = 21
- PR = 20
To ratio represents the cosine of ∠P we use the cosine law (please have a look at the attached photo)
=
+
− 2QP*PRcos(P)
<=> cos(P) = (+
-
) / 2QP*PR
<=> cos(P) =( ) /2*29*20
<=> cos(P) = 20/29
Hope it will find you well.
