All you do is plug the x coordinate of a pair (the one on the left) in for x in the equation, and plug the y coordinate of the pair (the one on the right) for y and solve! If the answer is the same on both sides, it works for the equation. Hope that helps! Just comment if you don't get it.
So Joeys lunch is 13 dollars and he leaves 17 percent of that. So first we find 17 percent of 13. So 13*0.17 is equal to 2.21. So then we do 2.21+13 and we get 15.21
To solve this exercise, you must follow the proccedure below:
1. You have:
Tan(α)=Opposite/Adjacent
α is the angle of depression (α=14°).
Adjacent=532 feet
Opposite=x
2. When you substitute these values into Tan(α)=Opposite/Adjacent, you obtain:
Tan(α)=Opposite/Adjacent
Tan(14°)=x/532
3. Now, you must clear "x", as below:
x=(532)(Tan(14°))
x=132.64 feet
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What is the height of the lighthouse?
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The answer is: The height of the house is 132.64 feet
is -8 a choice because im pretty sure it’s -8
