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2 years ago

Which of the following compositions produces the same image as R 0,-180?

1 answer:

5 0

The transformation RO - 180° means rotation of - 180°.

That is half-turn clockwise.

When you apply that rotation, the coordinates of a point (x,y) transforms into coordinates (-x,-y).

So, any coomposition that is equivalent to half-turn will produce the same image as RO - 180°.

These are some examples:

1) RO 90° and RO 90° (because 90° + 90° = 180° and that is equivalent to -180°).

2) RO - 90° and RO - 90° (because - 90° - 90° = - 180°).

3) RO 90° and RO - 270° (becasue 90° - 270° = - 180°).

At the end there are infinite combinations equivalent to Ro - 180°, so, given that you did not include the set of choices, I have provided the explanations and examples which teachs you how to test any combination of rotations.

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Could somebody please help me I dont understand how to do this problem

forsale [732]

So a triangle has a total of 180 degrees
107 + 2x-5 +x = 180
solve for x
112 + 3x = 180
-112 -112
3x = 68
x = 22.6667 degrees

4 0

2 years ago

Read 2 more answers

Jack bought 4 bagels for 3.00. how many bagels can he buy for 4.50?

bija089 [108]

Answer:

The answer is

<h2>6 bagels</h2>

Step-by-step explanation:

In order to solve this problem we use ratio and proportion

From the question

He used 3.00 to buy 4 bagels

Then 4.50 will be

$\frac{4.5 \times 4}{3} \\ = \frac{18}{3}$

We have the final answer as

<h3>6 bagels</h3>

Hope this helps you

6 0

2 years ago

Read 2 more answers

A decorative window is made up of a rectangle with semicircles at either end. The ratio of AD to AB is 3:2 and AB is 30 inches.

scZoUnD [109]

Answer: The required ratio will be

$84:1034$

Step-by-step explanation:

Since we have given that

Ratio of AD to AB is 3:2

Length of AB = 30 inches

So, it becomes

$2x=30\\\\x=\frac{30}{2}=15\ inches$

So, Length of AD becomes

$3x=3\times 15=45\ inches$

Now, at either end , there is a semicircle.

Radius of semicircle along AB is given by

$\frac{30}{2}=15\ inches$

So, Area of semicircle along AB and CD is given by

$2\times \frac{\pi r^2}{2}\\\\=\frac{22}{7}\times 15\times 15\\\\=\frac{4950}{7}\ in^2$

Radius of semicircle along AD is given by

$\frac{45}{2}=22.5\ inches$

Area of semicircle along AD and BC is given by

$2\times \frac{1}{2}\pi r^2\\\\=\frac{22}{7}\times \frac{45}{2}\times \frac{45}{2}\\\\=\frac{445500}{28}\ in^2$

And the combined area of the semicircles is given by

$\frac{4950}{7}+\frac{445500}{28}\\\\=\frac{465300}{28}\ in^2$

Area of rectangle is given by

$Length\times width\\\\=AD\times AB\\\\=45\times 30\\\\=1350\ in^2$

Hence, Ratio of the area of the rectangle to the combined area of the semicircles is given by

$1350:\frac{465300}{28}\\\\=1350\times 28:465300\\\\=37800:465300\\\\=84:1034$

Hence, the required ratio will be

$84:1034$

8 0

2 years ago

Please help me in this one

ANEK [815]

The best choices are table 1.

All the input values are being multiplied by themselves by the output values.

This creates a congruent and linear correlation and congruence.

I hope this helps!

Brainliest answer is always appreciated!

8 0

3 years ago

Help i don’t know how to do this

lyudmila [28]

Answer:

ok so first you add all the prices together.

$9:00+$7:00+$8:00+$6:00+$4:00=34

then divide 34 by the number of prices.

34/5

then you get the mean

$6.8 is the mean

Step-by-step explanation:

7 0

1 year ago