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Mathematics 20 Online
ChocolateIceCream12:

Find the measure of angle x. Round your answer to the nearest hundredth. (please type the numerical answer only

ChocolateIceCream12:

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ChocolateIceCream12:

I ended up with -0.032 but I dont think that is right here is my calculation. tan(-1) x 1.875.

ChocolateIceCream12:

This must be hard to explain lol.

Extrinix:

To solve this, first we need to determine what function we should use (sin, cos, or tan, through SOH CAH TOA) Seeing as you’ve solved for that and gotten \(\sf{tan}\), we’ll use that. Now, we use theta (\(\sf{\theta}\)) in replacement of x in order to solve for the angle measure. \(\sf{tan \theta = \dfrac{8}{15}}\) Next we use \(\sf{tan^{-1}}\) on both sides to remove it from theta. \(\sf{tan^{-1}(tan \theta ) = tan^{-1}(\dfrac{8}{15}}\) Now that that’s done, you solve \(\sf{tan^{-1}(\dfrac{8}{15})}\) (by simply using a calculator). Which would give you roughly \(\sf{28.07}\). Making your equation, \(\sf{\theta = 28.07}\)

Extrinix:

Sorry it took a while, had to redo some equations like, 3 times.

ChocolateIceCream12:

No worries! This will definitely help me with my next question on this assessment.

ChocolateIceCream12:

@extrinix Wait....sooo how do u know when to use -1

Extrinix:

@chocolateicecream12 wrote:
@extrinix Wait....sooo how do u know when to use -1
Whenever you’re solving for the angle measurement, otherwise you would just solve for x.

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