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Evgen [1.6K]
4 years ago
13

5y + 3 = 4y - 9 what is y?

Mathematics
1 answer:
Elena L [17]4 years ago
6 0

y =  - 12

Step-by-step explanation:

5y - 4y =  - 9 - 3 \\ y =  - 12

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Transformations<br>I need help on this worksheet please.
Neporo4naja [7]

Answer:

Step-by-step explanation:

Question 2

As far as I can see, you got it right. The general transformation for 90 ccw is

(x,y) ===> (-y, x)

What that means is for the x you put in -y changing the sign to the opposite and for the y you put in x and this time you leave the sign alone . The transformation is shown in the left hand diagram.

The two tables are shown below.

Original

  • (1,4)
  • (1,2)
  • (3,2)
  • (3,5)

The transformed table is

  • (-4,1)
  • (-2,1)
  • (-2,3)
  • (-5,3)
  • (-4,1)    This is just to let the program know to close the figure For some reason this did not have lines and if I delete it and put the lines in, I won't be able to upload the new diagram.

===========

Four

This one transforms from (x,y) to (-x,-y) which means where you see an x, you put a - x and where you see a y, you put a minus y. It is the middle frame.

Original

  • (-4,3)
  • (0,3)
  • (-2,0)
  • (-4,3)  Here again, this is just to close the figure.

The transformed figure in red I think is

  • (4,-3)
  • (0,-3
  • (2,0)
  • (4,-3) And this closes the figure as well.

==========

Six

The diagram is on the right

Reflection about the y axis. Here the transformation is (x,y) ====> (-x,y) notice the ys don't change.

  • (-3,0)
  • (-5,-2)
  • (-1,-2)

There is no closure.

Reflection

  • (3,0)
  • (5,-2)
  • (1,-2)

4 0
3 years ago
Is it subtracting that I need to do or is it adding?
alisha [4.7K]
You need to subtract 25 by 18
4 0
3 years ago
Question 8 Maurice won 40% of the races he ran in this season. He won 14 races this season How many races did Maurice run in tot
Andrej [43]

Answer:

D)35

Step-by-step explanation:

14%4=3.5

3.5×10=35

6 0
2 years ago
Using the ten frame.write a number sentence.there are 17 goats in the barn.8 goats go outside
Feliz [49]
The answer is 9 because 17-8=9
4 0
4 years ago
Write an equation of a line passing through the point (2,-1) and has the slope of -3
gizmo_the_mogwai [7]

When we are having a point (x1,y1) and slope (m) then the equation of line is given by y - y1 = m (x - x1)

Here we do have following data provided they are;

  • Point (x1,y1) = (2,-1)

  • Slope (m) = -3

Placing values in the given equation we get,

\implies\sf{y - y1 = m(x - x1)}

\implies\sf{y - ( - 1) =  - 3(x - 2)}

\implies\sf{y  + 1 =  - 3(x - 2)}

\implies\sf{y + 1 =  - 3x + 6}

  • Thus the equation of line is <u>y </u><u>+</u><u> </u><u>1</u><u> </u><u>=</u><u> </u><u>-3x </u><u>+</u><u> </u><u>6</u>
3 0
3 years ago
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