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nadya68 [22]
3 years ago
15

What's the average of x-y and x+y

Mathematics
1 answer:
frez [133]3 years ago
6 0

Answer:

x

Step-by-step explanation:

(x−y + x+y) / 2

2x / 2

x

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Anuta_ua [19.1K]

Answer:3100 with 9%

Step-by-step explanation:

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3 years ago
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Which shows the pre-image of triangle X'Y'Z' before the figure was rotated 90° about the origin?
Oksanka [162]

Answer:

pre-image XYZ is X (2, 2), Y (6, 0), Z (1, -1)

The above is the second option in your question.

Step-by-step explanation:

a triangle has points X' (-2, 2), Y' (0, 6), Z' (1, 1)

To rotate the above triangle -90° about the origin you invert the x & y values and change the sign on the new y value.

pre-image XYZ is X (2, 2), Y (6, 0), Z (1, -1)

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3 years ago
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1/3 (x + 4 ) = 20 wt the answer
sashaice [31]

Answer:

x = 56

Step-by-step explanation:

To start, distribute the 1/3 onto the x and the 4 in the parenthesis. That leaves you with

1/3x + 4/3 = 20

We want the x value by itself so we're going to subtract the 4/3 from the left and the right side, leaving us with

1/3x + 4/3 = 20 - 4/3

1/3x = 18 & 2/3 (since we're dealing with fractions, I'm going to change the 18 & 2/3 into an improper fraction just to make the next step easier.)

1/3x = 56/3

The last step is to divide the 1/3 off of the x, so x is by itself. To divide a fraction by a fraction, just flip the fraction you're dividing with and multiply.

56/3 x 3/1 = 56 (56 x 3 is 168, and 3 x 1 is 3, so when you reduce 168/3, you get 56)

So, 56 is our answer, because after dividing off the 1/3, we're left with x = 56

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2 years ago
Which shows an angle that is approximately 40°?<br><br><br> A.<br><br><br> B.<br><br><br> C.
umka21 [38]
It's the first image.
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3 years ago
Free p0int first come first serve
photoshop1234 [79]

Answer:

Step-by-step explanation:

Thanks for the points

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