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4 years ago

An equo equila Teral Traingle has

Mathematics

1 answer:

Murljashka [212]4 years ago

6 0

Answer:

Step-by-step explanation:

Given parameters:

Dimensions of the equilateral triangle = 6.2cm

Unknown:

Perimeter = ?

Solution:

The perimeter of the triangle is the sum of all its sides;

Perimeter = 3(L) for an equilateral triangle;

Perimeter = 3(6.2) = 18.6cm

to the nearest mm = 19.0cm

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Factor by grouping. 9c^3-12c^2+18c-24

xeze [42]

Answer:

$9c^3 - 12c^2 - 18c - 24= [3c^2 - 6][3c - 4]$

Step-by-step explanation:

Given

$9c^3 - 12c^2 - 18c - 24$

Required

Factor

Group into 2

$[9c^3 - 12c^2] - [18c + 24]$

Factorize each group

$3c^2[3c - 4] - 6[3c - 4]$

Factor out 3c - 4

$[3c^2 - 6][3c - 4]$

Hence:

$9c^3 - 12c^2 - 18c - 24= [3c^2 - 6][3c - 4]$

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3 years ago

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Anna11 [10]

Answer:

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Step-by-step explanation:

The given triangle has 2 equal sides and is therefore isosceles.

The base angles are equal, both 55°

To find x subtract the sum of the 2 angles from 180

x = 180° - (55 + 55)° = 180° - 110° = 70°

6 0

4 years ago

One student wrote (2 1/2)2 = 4 1/4 What mistake do you think they made and how would you help them fix their mistake?

tatiyna

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Step-by-step explanation:

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