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g100num [7]
3 years ago
6

Solve and round to the nearest hundredth 5y+2y =-24

Mathematics
2 answers:
elena-14-01-66 [18.8K]3 years ago
5 0

Answer:

Y = -3.4

Step-by-step explanation:

5y + 2y = -24

7y = -24

y = -24/7

y = -3.4

goblinko [34]3 years ago
3 0

Answer:

12

Step-by-step explanation:

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How do you solve the system by substitution?<br><br> y = 4x + 24<br> y = 5x
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ankoles [38]
The answer is:
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3 years ago
Simple answers please
charle [14.2K]

Answer:

  • A'(4, -4)
  • B'(0, -3)
  • C'(2, -1)
  • D'(3, -2)

Step-by-step explanation:

The coordinate transformation for a 270° clockwise rotation is the same as for a 90° counterclockwise rotation:

  (x, y) ⇒ (-y, x)

The rotated points are ...

  A(-4, -4) ⇒ A'(4, -4)

  B(-3, 0) ⇒ B'(0, -3)

  C(-1, -2) ⇒ C'(2, -1)

  D(-2, -3) ⇒ D'(3, -2)

_____

<em>Additional comment</em>

To derive and/or remember these transformations, it might be useful to consider where a point came from when it ends up on the x- or y-axis.

A point must have come from the -y axis if rotating it 270° CW makes it end up on the +x-axis. A point must have come from the x-axis if rotating it 270° makes it end up on the +y axis. That is why we write ...

  (x, y) ⇒ (-y, x) . . . . . . the new x came from -y; the new y came from x

4 0
2 years ago
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