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Hatshy [7]
3 years ago
5

4. For the expression below you are allowed to put in as many or as few brackets as you like. What

Mathematics
1 answer:
hichkok12 [17]3 years ago
8 0

Answer:

-1

Step-by-step explanation:

All of them equal negative one and -1*-1 equals negative 1

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What is the length of segment XY?
Brilliant_brown [7]

Answer:

StartRoot 53 EndRoot units

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Step-by-step explanation:

Choose which is point 1 and point 2 so you don't confuse the coordinates.

Point 1 (–4, 0)    x₁ = –4   y₁ = 0

Point 2 (3, 2)      x₂ = 3    y₂ = 2

Use the formula for the distance between two points.

L = \sqrt{(x_{2}-x_{1})^{2} + (y_{2}-y_{1})^{2}}

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XY = \sqrt{49 + 4}

XY = \sqrt{53}

Therefore the line of segment XY is √53.

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