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katovenus [111]
4 years ago
12

Writing Trigonometric Ratios -

Mathematics
2 answers:
scoray [572]4 years ago
8 0
Option3 is the answer..!!!

AlexFokin [52]4 years ago
3 0

Hello!

Let's review our trigonometric ratios.

Sine= \frac{opposite}{hypotenuse}

Cosine= \frac{adjacent}{hypotenuse}

Tangent=\frac{opposite}{adjacent}

Let's look which lines are opposite, adjacent, and hypotenuse.

Opposite: XZ

Adjacent: YZ

Hypotenuse: XY

Let's plug these into our ratios.

SinY= \frac{XZ}{XY}

CosY=\frac{YZ}{XY}

TanY=\frac{XZ}{YZ}

As you can see, these numbers match answer C.

I hope this helps!

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<u>Step-by-step explanation:</u>

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3 years ago
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Answer:

The Alans's average for the course is 84.5

Step-by-step explanation:

We are given

There are 4 tests, A Term paper and a Final examination.

Score = 92, 78, 82, 90.

Term paper score = 80

Final examination score = 86

Weighted mean = ∑ w.f/∑w

     also the sum of all the weights is 100% = 1

weighted mean = 15%*92 + 15%*78+15%*82+15%*90+20%*80+20%*86/1

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Therefore the Alans's average for the course is 84.5

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Step-by-step explanation:

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