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Sergio039 [100]
3 years ago
5

What is the value of the expression 30+(-6)? -180 -5 5 24​

Mathematics
2 answers:
Svetradugi [14.3K]3 years ago
6 0

Answer:

24

Step-by-step explanation:

tigry1 [53]3 years ago
3 0

Answer:

24

Step-by-step explanation:

30 + (-6) is equivalent to 30 -6, which is 24.

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Plot and connect the points A (4, 2), B (-3, 2), C(-3, 5), D (4, 5), and find the length of AB.
Phantasy [73]

Answer:

AB = 7

Step-by-step explanation:

The y-coordinate of point A and B is the same.

Therefore, both points lie on the same horizontal line (y = 2).

So determine the distance between them, subtract the x-coordinate of B from the x-coordinate of A:

AB = 4 - -3 = 4 + 3 = 7

However, to calculate the distance between 2 points, regardless if the points are on a horizontal (or vertical) line, you can always use the distance between 2 points formula that is derived from Pythagoras' Theorem, as follows:

let (x_1,y_1) = point A (4, 2)

let (x_2,y_2) = point B (-3, 2)

using the distance between two points equation:

AB=\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}

\implies AB=\sqrt{(-3-4)^2+(2-2)^2}

\implies AB=\sqrt{(-7)^2+(0)^2}

\implies AB=\sqrt{49}

\implies AB=7

*Edited to add a plot diagram*

5 0
3 years ago
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answer 

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blagie [28]
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Answer: x = 9

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