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3 years ago

Help with this please!

Mathematics

1 answer:

uranmaximum [27]3 years ago

4 0

Here. Remember to get the correct units. If you need extra help, I am more than willing to help!

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polygon ABCD is defined by the points A(-4,2), B(-2,4), C(1,3), and D(2,2). match the coordinates of the points you f the transf

Tomtit [17]

Answer:

D' ..................> (-2,2)

C'' .................> (3,-1)

A''' ................> (4,-2)

B'' .................> (4,2)

Step-by-step explanation:

Before we begin, we should remember the rotation rules:

1- Rotation 90° clockwise:

Coordinates (x,y) become (y,-x)

2- Rotation 90° counter clockwise:

Coordinates (x,y) become (-y,x)

3- Rotation 180° clockwise:

Coordinates (x,y) become (-x,-y)

4- Rotation 270° counter clockwise:

Coordinates (x,y) become (y,-x) ...........> same as rotation 90° clockwise

Now, let's consider the given problem:

1- Coordinates of D' if polygon ABCD rotates 90° counter clockwise to create A'B'C'D'

Original coordinates of point D are (2,2)

Rotation 90° counter clockwise means that the new coordinates will be (-y,x) which is (-2,2)

2- Coordinates of C'' if polygon ABCD rotates 90° clockwise to create A''B''C''D''

Original coordinates of point C are (1,3)

Rotation 90° clockwise means that the new coordinates will be (y,x) which is (3,-1)

3- Coordinates of A''' if polygon ABCD rotates 180° clockwise to create A'''B'''C'''D'''

Original coordinates of point A are (-4,2)

Rotation 180° clockwise means that the new coordinates will be (-x,-y) which is (4,-2)

4- Coordinates of B'' if polygon ABCD rotates 270° counter clockwise to create A''B''C''D''

Original coordinates of point B are (-2,4)

Rotation 270° counter clockwise means that the new coordinates will be (y,-x) which is (4,2)

Hope this helps :)

5 0

3 years ago

How can you calculate the area of the circle if you know the circle's circumference?

Jobisdone [24]

Answer with step-by-step explanation:

We know that the formula for area of a circle is given by:

Area of a circle = $\pi r ^ 2$

So to find the area of circle, we basically need to know the radius of the circle.

If we know the circumference of the circle, we can calculate the area of the circle too.

Formula for the circumference of the circle is given by:

$2\pi r$

So if we know the circle's circumference, we can find the value of radius and then find the area of circle with it.

5 0

3 years ago

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PLS HELP WILL MARK BRAINLIEST!

disa [49]

Answer:

Step-by-step explanation:

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6 0

3 years ago

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Write the missing number that makes the equation true. 3+4=8-

guapka [62]

The Answer is 3 + 4 = 8 - 1

3 0

3 years ago

What is 4/3 subtracted by 2/5

Tomtit [17]

Here is you're answer:

In order to find the answer you have to find the common denominator and then subtract.

$\frac{4}{3} - \frac{2}{5}$
Find the common denominator:
$CD = 15$
$4 - 2 = 2$
$=\frac{2}{15}$

Therefore you're answer is "2/15."

Hope this helps!

3 0

3 years ago

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