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dangina [55]
1 year ago
14

3. What kind of triangle is represented by the triangle shown below?

Mathematics
1 answer:
krek1111 [17]1 year ago
5 0

Answer:

Isosceles

Step-by-step explanation:

An Isosceles triangle has an acute angle (less than 45°), and this photo shows a triangle with two matching sides with one side being longer.

A right triangle would have a 90° angle which this photo doesn't have

An Equilateral triangle has all 60° sides, since it doesn't have all matching sides, it cannot be the answer.

A Scalene triangle is similar to this photo except it has 30° 60° and 90° angles, which this photo doesn't have.

I hope this helps!

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What is the solution of the system?
spin [16.1K]
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Proof:

Solve the following system:
{4 x + 3 y = 12 | (equation 1)
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{7 x + 5 y = 26 | (equation 1)
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Subtract 4/7 × (equation 1) from equation 2:
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{0 x+y/7 = (-20)/7 | (equation 2)

Multiply equation 2 by 7:
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Subtract 5 × (equation 2) from equation 1:
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Divide equation 1 by 7:
{x+0 y = 18 | (equation 1)
{0 x+y = -20 | (equation 2)

Collect results:

Answer: {x = 18, y = -20
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Step-by-step explanation:

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