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Lerok [7]
3 years ago
12

Please help if you can

Mathematics
2 answers:
igor_vitrenko [27]3 years ago
7 0

Answer:

5/2 or 5:2 ratio is the reduced fraction from the scale factor A to B.

Vinvika [58]3 years ago
4 0

The scale is 5/4

Because:

Let's take

20/16 = 5/4

20/16 = 5/4

15/12 = 5/4

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In triangle ABC, a=7, b=3 and cos C = 1/2. The value of c is
aalyn [17]

Answer:

Correct option: 2 -> sqrt(37)

Step-by-step explanation:

To solve this problem, we just need to use the law of cosines. This law is used to find the third side of a triangle, when we have the two other sides and the angle between them.

The equation of the law of cosines is:

c^2 = a^2 + b^2 - 2 * a * b * cos(C)

So, we have that:

c^2 = 7^2 + 3^2 - 2 * 7 * 3 * (1/2)

c^2 = 49 + 9 - 21

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Correct option: 2

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3 0
3 years ago
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Tpy6a [65]

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