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DENIUS [597]
3 years ago
12

Find the perimeter of ABC with vertices A (1,1), B (7,1), and C (1,9)

Mathematics
1 answer:
Effectus [21]3 years ago
4 0

Answer:

24 unit

Step-by-step explanation:

Given,

The vertices of the triangle ABC are,

A (1,1), B (7,1), and C (1,9),

By the distance formula,

AB=\sqrt{(7-1)^2+(1-1)^2}=\sqrt{6^2}=6\text{ unit}

BC=\sqrt{(1-7)^2+(9-1)^2}=\sqrt{6^2+8^2}=\sqrt{36+64}=\sqrt{100}=10\text{ unit}

CA=\sqrt{(1-1)^2+(1-9)^2}=\sqrt{8^2}=8\text{ unit}

Thus, the perimeter of the triangle ABC = AB + BC + CA = 6 + 10 + 8 = 24 unit

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Evaluate the expression a•b for a =24 and b=8
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\huge\text{Hey there!}


\mathsf{a\times b}}

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2 years ago
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Answer:

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Step-by-step explanation:

The number inside of f( ) is telling you which equation to use to get the answer.

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f(-2) since -2 is less than 0 you would use (x^2) - 5. So, ((-2)^2) - 5 = 4-5 = -1

f(0) since 0 is less than or equal to 0 you would use (x^2) - 5 again. So, ((0)^2) - 5 = 0-5 = -5

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6 0
3 years ago
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Answer:

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Step-by-step explanation:

A1 = 2(5 x 2) = 20

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Step-by-step explanation:

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