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3 years ago

What set of Reflections and rotations could carry ABCD onto itself?

Mathematics

2 answers:

Nitella [24]3 years ago

6 0

Reflect over y-axis,reflect over the X axis ,rotate 180°

Option D is the correct option.

Explanation:

Let's take point A which is (4,-1)

Reflection over y- axis will make this point (4,1)

Then, reflection over X axis will make this point (4,-1)

After rotation of 180 degree we will get (-4,1) .

Please see the attached picture....

Hope it helps...

Good luck on your assignment...

AURORKA [14]3 years ago

4 0

Answer: d) reflect over the x-axis, reflect over y-axis, rotate 180°

Step-by-step explanation:

A reflection over the x-axis and a reflection over the y-axis is the SAME as a rotation of 180°. Together they make a rotation of 360°, which results in the image staying at the same place.

Reflection over the x-axis changes the sign of the y-coordinate

Z = (x, y) → Z' = (x, -y)

Reflection over the y-axis changes the sign of the x-coordinate

Z' = (x, -y) → Z'' = (-x, -y)

Rotation of 180° changes the signs of both the x- and y-coordinates

Z'' = (-x, -y) → Z''' = (x, y)

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At noon, the minute and hour hands overlap. In how many hours will they overlap again?

nadya68 [22]

24 hours

Because 24 hours equals 1 day or one rotation of the clock

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3 years ago

J.k. Rowling and R.L. Stone are both ready hunger games . J.k. Reads 35 pages every 2 hours and R.L. Reads 45 pages every 3 hour

san4es73 [151]

Answer:

The rate of change for each reader is :

For J K Rowling : 17 and a half pages per hour

For R L Stone : 15 pages per hour

Step-by-step explanation:

Here the reading rate of each reader is given as:

J.K. Reads 35 pages every 2 hours.

So, the number of pages read by J K in 2 hours = 35 pages

⇒ The number of pages read per hour = 35 / 2 = 17 . 5 pages

So, the pages read by J K Rowling in 1 hour is 17 and a half pages.

R L Stone reads 45 pages every 3 hours.

So, the number of pages read by R L in 3 hours = 45 pages

⇒ The number of pages read per hour = 45 / 3 = 15 pages

So, the pages read by R L Stone in 1 hour is 15 pages.

Hence, the rate of change for each reader is :

For J K Rowling : 17 and a half pages per hour

For R L Stone : 15 pages per hour

5 0

4 years ago

Fifty people were surveyed about their favorite pizza topping. The results of the survey are displayed in the circle graph. How

vekshin1

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3 years ago

Question

IRINA_888 [86]

Answer:

$m=\frac{5}{3}$

Step-by-step explanation:

Given the following question:

Point A = (-2, -9) = (x1, y1)
Point B = (1, -4) = (x2, y2)

To find the slope of a line, we will need to use the formula for slope or rise over run.

$m=\frac{y2-y1}{x2-x1}$
$m=\frac{-4--9}{1--2} =\frac{5}{3}$
$m=\frac{5}{3}$

The slope of the given line is indeed "5/3."

Hope this helps.

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2 years ago

You are walking from home to a grocery store . You stop for a rest after 1/3 miles. The grocery store is actually 3/8 miles from

IgorLugansk [536]

Answer:

1/24

Step-by-step explanation:

1/3 = 8/24

3/8 = 9/24

9/24 - 8/24 = 1/24

3 0

3 years ago

What set of Reflections and rotations could carry ABCD onto itself?​

What set of Reflections and rotations could carry ABCD onto itself?