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worty [1.4K]
2 years ago
15

If x - 2y + z = 5 and -x + 3y - z = 2, then y = ?

Mathematics
1 answer:
jok3333 [9.3K]2 years ago
5 0

Answer:

y=10

Step-by-step explanation:

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What is the mean absolute deviation of the data: 10, 20, 15, 17, and 13?
Rufina [12.5K]

Answer:

2.8

Step-by-step explanation:

1) find the mean of the data set. = 15

2) find the abs value of the diff between each data value and the mean: |data value – mean|.

|10-15|=5, |20-15|=5, |15-15|=0, |17-15|=2, |13-15|=2

3) find the sum of the abs values of the diff = 14

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3 years ago
Can someone help me with this question please!!!!!
lianna [129]

Answer:

a = 29

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Step-by-step explanation:

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3 years ago
Which explanation justifies how the area of a sector of a circle is derived?
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Could someone give me an answer and explain how you got it ?
tankabanditka [31]

Answer:

A (9, 3)

Step-by-step explanation:

First the point is rotated 90° counterclockwise about the origin.  To do that transformation: (x, y) → (-y, x).

So S(-3, -5) becomes S'(5, -3).

Next, the point is translated +4 units in the x direction and +6 units in the y direction.

So S'(5, -3) becomes S"(9, 3).

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3 years ago
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