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Pavlova-9 [17]
2 years ago
14

I need help! I forgot how to do this problem

Mathematics
1 answer:
Nataly [62]2 years ago
8 0

Answer:

C.

Step-by-step explanation:

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Which ratio is greater, 4:5 or 3:4?
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4:5
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Express the given ratios as fraction

4 : 5 = 4/5 and 2 : 3 =2/3

Now find the L.C.M (least common multiple) of 5 and 3

The L.C.M (least common multiple) of 5 and 3 is 15.

Making the denominator of each fraction equal to 15, we have

4/5 = (4 ×3)/(5 ×3) = 12/15 and 2/3 = (2 ×5)/(3 ×5) = 10/15

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<h3>Answer:  -\frac{\sqrt{3}}{2}</h3>

Explanation:

The identity we'll use is cos(-x) = cos(x) for any value of x.

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