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miss Akunina [59]
3 years ago
5

How does a 180 degree rotation about the origin change the coordinates of a shape

Mathematics
1 answer:
notsponge [240]3 years ago
6 0

Answer:

According to the 180°-rotation rule, you take the OPPOSITE of both the x-coordinate and y-coordinate:

180°: [<em>x</em>, <em>y</em>] → [<em>-x</em>, <em>-y</em>]

I am joyous to assist you anytime.

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Two agent angles of a parallelogram are in the ratio 1 by 3 find the measures of all the angles​
zalisa [80]

Answer:

The measure of all the angles are;

45°, 135°, 45°, and 135°

Step-by-step explanation:

The given parameters are;

The ratio of two adjacent angles of the parallelogram = 1:3

Let x represent one of the adjacent angles, and let y represent the other adjacent angle

Given that two adjacent angles of a parallelogram are supplementary, we have;

x + y = 180°

x:y = 1:3

Therefore, y = 3 × x = 3·x, which gives;

x + 3·x = 180°

4·x = 180°

x = 180°/4 = 45°

y = 3 × x = 3 × 45° = 135°

Given that opposite interior angles of a parallelogram are equal, we have, the measure of all the angles are;

45°, 135°, 45°, and 135°.

8 0
2 years ago
What is the area? Please help
Mrrafil [7]

Answer:

75

Step-by-step explanation:

<h2>A=1/2h(a+b)</h2><h3> =10÷2=5(10+5)</h3>

=5×15

<h2> =75</h2>
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3 years ago
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Answer: 1p/5

Step-by-step explanation:

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I chose circle is closed and graph is shaded to the left of the circle and it said that was wrong. Please help, thank you
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The circle is closed and the graph is shaded to the right also there’s a negative on the x, you have to get rid of it first by dividing by -1 and then you switch direction of the less than or equal to greater than or equal because you divided by negative

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