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mart [117]
3 years ago
9

Determine if the given sides are a triangle or not A. 21 cm, 7 cm, 6 cm

Mathematics
1 answer:
fgiga [73]3 years ago
4 0

Answer:

This is not a triangle

Step-by-step explanation:

If you use the triangle inequality theorem you can reach your answer.

The theorem states that if you add the length of any 2 sides together, you will have a length greater than the length of the other side. Using this method we can easily see that 7+6=13 which is less than 21. Meaning this is not a triangle

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The length of Rebecca’s rectangular garden was two times the width “w”. She increased the length and width of the garden so that
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Answer:

rebecca increased the length by 3 and the width by 2

Step-by-step explanation:

First we need to find the length and width by factorizing the expressio ofr the area;

A = 2w^2+7w+6

A = 2w^2+4w+3w+6

A = 2w(w+2)+3(w+2)

A = (2w+3)(w+2)

Since l = 2w

Length = 2w+3

width = w+2

This shows that rebecca increased the length by 3 and the width by 2

6 0
3 years ago
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3 years ago
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BlackZzzverrR [31]
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Six out of the 12 members of the school choir are boys. In simplest form, what fraction of the choir is boys?
zubka84 [21]

Answer:

1/2

Step-by-step explanation:

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3 years ago
Write the simplified form of (-0.5z + 0.9z) – (-0.3z + 0.9z).
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