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Amiraneli [1.4K]
4 years ago
6

Which trigonometric function would be used to find the length of this triangle's hypotenuse?

Mathematics
2 answers:
Aleonysh [2.5K]4 years ago
7 0

B. cosine 25 degrees

because cosine = adjacent / hypotenuse

Sauron [17]4 years ago
5 0

Answer:

Cos 25° = \frac{adjecent}{hypontnuse}.

Step-by-step explanation:

Given : A right angled triangle with angle 25° and side = 12 cm

To find : Which trigonometric function would be used to find the length of this triangle's hypotenuse.

Solution : We have given that adjacent side  = 12 cm ,

By the trigonometric ratio

Cos (theta) = \frac{adjecent}{hypontnuse}.

Therefore, Cos 25° = \frac{adjecent}{hypontnuse}.

Therefore, Cos 25° = \frac{adjecent}{hypontnuse}.

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Step-by-step explanation:

Let

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z ---> the price of one drink

we know that

3x+2y+z=10.95 ----> equation A

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Adds equation A and equation B

3x+2y+z=10.95\\x+2y+3z=11.25\\------------\\3x+x+2y+2y+z+3z=10.95+11.25\\4x+4y+4z=22.2

Divide both sides of the equation by 4

x+y+z=5.55 ----> equation C

The equation C means ----> The price of 1 packet of French fries, 1 cheeseburger, and one drink cost $5.55

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