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Gnesinka [82]
3 years ago
15

Polygon ABCD is rotated 90° counterclockwise about the origin to create polygon A'B'C'D'. natch each set of coordinates to the v

ertices of polygon A'B'C'D
A'
B'
C'
D'

(-1,3)
(-2,2)
(-2,1)
(1-,1)

Mathematics
1 answer:
Sati [7]3 years ago
5 0

These questions are no problem, so long as you remember the rules for rotations. A point that is rotated 90 counterclockwise is simply x and y flipped, and negating the y.

For example, 2,9 becomes -9, 2.

So point A would be -1, 1, B would be -2, 1. So on and so forth.

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15 points Help asap thanks so much
lyudmila [28]
The answer is inconsistent
5 0
3 years ago
Which rational number could be graphed between -3 and -4
Snezhnost [94]

Answer:

-3.5

Step-by-step explanation:

An example is -3.5.

3 0
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Read 2 more answers
The equation y=2x represents a set of data. Which statement is NOT true?
Tresset [83]

Answer:

The initial value is 2

Step-by-step explanation:

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3 years ago
the half-life of radium-226 is about 1,590 years. How much of a 100mg sample will be left in 500 years
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Aa Bb Cc Dd Ee Ff Gg Hh Ii Jj Kk Ll Mm Nn Oo Pp Qq Rr Ss Tt Uu Vv Ww Xx Yy Zz

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6 0
2 years ago
When x-y=3 work out the value of y-x
GalinKa [24]

The value of y-x is (-3)

<u>Solution:</u>

Given: The value of x-y=3

To find: The value of y-x

\bold{x-y=3\rightarrow (1)}

Let's multiply the equation (1) by (- 1) on both sides,

\Rightarrow\bold{(x - y)\times(- 1) = 3\times(- 1)}

\Rightarrow\bold{-(x-y)=-3}

On multiplying the sign,

\Rightarrow\bold{(-x+y)=-3}

The above equation can also be written as,

\Rightarrow\bold{y-x=-3\rightarrow \text{(The required equation)}}

<u>Multiplication of signs:</u>

\Rightarrow( + )\times( + ) = ( + )

\Rightarrow( + )\times( - ) = ( - )

\Rightarrow( - )\times( + ) = ( - )

\Rightarrow( - )\times( - ) = ( + )

In simpler terms, when we multiply two integers with the same signs, the result is always positive and when we multiply two integers with different signs, the result is always negative.

5 0
3 years ago
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