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Mekhanik [1.2K]
3 years ago
15

How to evaluate a trigonometric function using reference angle? you can pick

Mathematics
2 answers:
pantera1 [17]3 years ago
7 0

Answer:

How to choose which trig function to use based on an angle? I'm assuming that's simpler form of the question hehe

Step-by-step explanation:

pick an angle, and look at the sides that you HAVE

if you have the side opposite to the angle, and the hypotenuse of the triangle you use sine.

if you have the side adjacent to said angle, and the hypotenuse, you use cosine.

and if you don't have the hypotenuse, but you have the other two sides, you use tangent.

NemiM [27]3 years ago
3 0
The person above me is right
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If the discount is 30% then the amount paid is 70% of the original price. Sally paid $20, it is the discounted price, equivalent to 70%.

We need to divide $20 by 70% to get the original price or the 100%.

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Since the handbag was has discount of 30%, we multiply the original price with the 30% to get the discount value.

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