Which is the correct mapping statement for a rotation 180∘ about the origin?

(x,y)↦(y,x)
(x,y)↦(−x,−y)
(x,y)↦(−y,x)
(x,y)↦(y,−x)

Answers

Answer 1

Answer:

B

Step-by-step explanation:

it moved twice to the left hand side because it's 180 anticlockwise
Answer 2

Answer:(x,y)↦(−x,−y)

Step-by-step explanation:


Related Questions

PLEASE HELP ASAPPPP!!

question: write in standard form.

2x^2+x^3-3+4x^5

Answers

Answer:

+4X^5+X^3+2X^2-3

Step-by-step explanation:

Hope this helps :*

Find
Sin 2 (30degrees)

Answers

Answer:

Sin 2 (30)°=  [tex]\frac{\sqrt{3} }{2}[/tex]

Step-by-step explanation:

Explanation:-

Given that   Sin 2 (30)°

we know that the formula  sin2θ = 2sinθ cosθ

   Given that θ = 30°

   Now  

         sin2(30)° = 2sin30° cos30°

                                             [tex]= 2 ( \frac{1}{2} X \frac{\sqrt{3} }{2} )[/tex]

       After cancellation, we get

                           Sin 2 (30)° = [tex]\frac{\sqrt{3} }{2}[/tex]

Final answer:-

          Sin 2 (30)° = [tex]\frac{\sqrt{3} }{2}[/tex]    

Square root 2x + 3 equals X

Answers

3 (had to feel the space with words)

Which algebraic expression represents "the apples were divided equally into seven boxes"?
7+ a
С 7а
7
a

Answers

Answer:7+a

Step-by-step explanation:multiply 7 by a

Answer:

a/7 yw :)

Step-by-step explanation:

please help me!!!! ily if u dooooo

Answers

Where are the choices

A 6 inch personal pizza has 620 calories, with 240 of those from fat. A 12 inch pizza is cut into 8 slices. Estimate the number of calories in one slice of a 12 inch pizza.

Answers

9514 1404 393

Answer:

  310 calories (120 from fat)

Step-by-step explanation:

A 12-inch pizza has double the diameter of the 6-inch pizza, so will have 2² = 4 times the area. 1/8 of that pizza will have 4/8 = 1/2 the area of the personal pizza. If calories are proportional to the area, then the slice will have ...

  (1/2)(620 calories) = 310 calories . . . in 1 slice of 12-in pizza

Which of the following is a degenerate circle?
O A. r?+ y2 = 5
O B. x+y=7
O c. x² + y² = -2
O d. (x - 5)²+(y - 3)2 = 0

Answers

The answer is D to your question

the Equation A. r²+ y² = 5 degenerate the circle.

What are the properties of the circle?

The circumference, which is the distance around the object, the diameter, which is the length of a circle measured from one end to the other and passing through its center, and the radius, which is equal to half of the diameter, are the three key characteristics.

The general coordinate equation of a circle is:

(x-h)² + (y - k)² = r²

Where,

(h, k) is the center of a circle,

"r" is the radius of the circle.

Only option A, r²+ y² = 5

Satisfies the general equation of the line,

thus, From option A the coordinates of the circle on the plane r-y

is (0, 0) and the radius of the circle will be √5.

From option B,  x+y=7

It is the equation of the line.

From option C, x² + y² = -2

The sum of two squares can not be negative so it is not a real equation

From equation D, (x - 5)²+(y - 3)² = 0

The radius of a circle can not be zero otherwise it will become a point.

therefore, the Equation A. r²+ y² = 5 degenerate the circle.

Learn more about Circle here:

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Complete question:

Which of the following is a degenerate circle?

O A. r²+ y² = 5

O B. x+y=7

O c. x² + y² = -2

O d. (x - 5)²+(y - 3)² = 0

A town has a population of 20,000 and grows at 4.5% every year how long will it be in to the population is 42,800

Answers

Answer:

It will take 17 years to get a population of 42,800.  (Specifically 17.3)

Step-by-step explanation:

We will use the equation

y = population

x = amount of years

y = 20000(1 + 0.045)^x

20000 is the original population.

(1 + 0.045) is the increase of 4.5% every year

For each set of measures, choose whether the conditions determine a unique triangle, more than one triangle, or no triangle.

Answers

Answer:

the first one is "1 triangle" the second one is "no triangles" the third one is "no triangles and the fourth one is "1 triangle"

Step-by-step explanation:

I got it right one edge

From conditions 1, 4 the triangles can be formed and from conditions 2,3 the no triangles can be formed.

What is a triangle?

A triangle is a flat geometric figure that has three sides and three angles. The sum of the interior angles of a triangle is equal to 180°. The exterior angles sum up to 360°.

For the given situation,

The table shows the set of measures, we need to determine which condition can make triangles.

Condition 1:

AB = 15 cm, BC = 20 cm, ∠B = 40°

By SAS criteria, this condition can form a triangle.

Condition 2:

AB = 20 cm, BC = 15 cm, ∠C = 40°

Here the condition is Side-Side-Angle. There is no such criteria, so no triangle can be formed.

Condition 3:

BC = 10 cm, BC = 5 cm, ∠A = 20°

Here side length of BC alone is given. With one side and one angle, no triangle can be formed.

Condition 4:

AC = 5 cm, BC = 10 cm, AB = 14 cm

Here three sides are given, so we can form a triangle.

Hence we can conclude that from conditions 1, 4 the triangles can be formed and from conditions 2,3 the no triangles can be formed.

Learn more about triangles here

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The table below shows the number of people, y, who ride a roller coaster at a theme park over a certain number of hours, x, during a day. Write an equation that represents the relationship between the number of people that ride a roller coaster in terms of the time, in hours, as shown in the table. Use the on-screen keyboard to type the correct equation in the box.

Answers

Answer:

y = 350x

Step-by-step explanation:

To find the equation of the chart, we simply find the slope and then follow the slope-intercept equation.

Points on the chart: (0, 0) and (1.5, 525)

Slope:

m=(y2-y1)/(x2-x1)

m=(525-0)/(1.5-0)

m=525/1.5

m = 350

Slope-intercept:

y - y1 = m(x - x1)

y - 0 = 350(x - 0)

y - 0 = 350x

y = 350x

Pls help with question.

Answers

Answer:

5. 39.556

6.5.233

4 b  [tex]\frac{13}{2}[/tex]

4a  [tex]\frac{51}{12}[/tex]

write an expression for b divided by 6



(please only real answers, I am already failing I don't need more bs)​

Answers

Answer:

Well divided by is basically he slash between the things so it would be

b/6

Step-by-step explanation:

÷ is basically (divided by) and whatever number comes first jsut write it like for example

10 divided by 4

10 / 4

Answer:

b/6

Step-by-step explanation:

dont you think thats a bit easy?  B divided by six, b ÷ 6,  b goes in the like box when u do long division and 6 is outside

Which expression is equivalent to 64^1/4

Answers

Answer:

C

Step-by-step explanation:

It is C because 64 to 1/4 power is just 64 divided by 4.

Use a Venn diagram to answer.
If n(A) = 8, n(B) = 9 and n(An B) = 6, what is n(AUB)?

Answers

Answer:

[tex]n(A \cup B) = 6[/tex]

Step-by-step explanation:

In Venn sets, we have that:

[tex]n(A \cup B) = n(A) + n(B) - n(A \cap B)[/tex]

In which n is the number of elements that each set contains.

In this question:

[tex]n(A) = 8, n(B) = 9, n(A \cap B) = 6[/tex]

So

[tex]n(A \cup B) = n(A) + n(B) - n(A \cap B) = 8 + 9 - 6 = 17 - 6 = 11[/tex]

So

[tex]n(A \cup B) = 6[/tex]

Frands collects marbles. In her collection are:
8 yellow marbles
4 white marbles
6 purple marbles
10 green marbles
Frands will randomly choose 1 of the marbles. What is the probability that she will choose a
purple marble?​

Answers

Answer:

Step-by-step explanation:

VVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVVV∀°←ω∵ωβ,≡⇅∑ωπω⇄Δ∫ωωω³²²²²

PLEASEEE HELPPPP U DONT HAVE TO BE CORRECT JUST HAS TO MAKE SENSEEE PLS HELLPP

Answers

Answer:

TBH I don't really know either, but 63, 360?

Step-by-step explanation:

If they give you a number in feet, and they want inches time the number by 12? (12 inches in a foot)...sorry idrk...

Answer and Step-by-step explanation:

We are told that there are 5,280 feet in 1 mile.

We also know that 1 foot equals 12 inches.

So, to know how many inches are in One mile, we must multiply 5280 by 12.

     1    

  5280

×      12

______

 10560

+52800

_______

63360

So, the amount of inches that are in 1 mile is 63,360.

#teamtrees #PAW (Plant And Water)

HELP ME PLEASE 75 points. FASTTT

Answers

Answer:

X=2,3

Step-by-step explanation:

I need to know what one to pick I will send an image to go with it ​

Answers

Answer: um do you need help because I don’t see the question or the picture you are talking about..

Step-by-step explanation:

At the Museum of Modern Art , 5 students share 4 subs.
How much of a sandwich does each student get?
First to awnser correctly gets brainliest



(Middle School)

Answers

Answer:

1.25 of a sandwich

Step-by-step explanation:

5/4=1.25

I'm not sure if you have to round it or not, but I think this would be exact!

Hope this helps!

Susan and Sarah love to play their favorite frivia
video game. Susan has a total score of 87,325
points. Sarah has a total score of 46,175. How
many times larger is the 7 in Susan's score than
Sarah's score?

Answers

Answer:

please l don't understand

A rectangular prism has a length of 9 in., a width of 4 in., and a height of 1 1/2 in. The prism is filled with cubes that have edge lengths of 1/2 in. How many cubes are needed to fill the rectangular prism? Enter your answer in the box. To fill the rectangular prism, cubes are needed.

Answers

Answer: 432 cubes

Step-by-step explanation:

Volume of rectanglular prism

[tex]\\ \rm\Rrightarrow LBH[/tex]

[tex]\\ \rm\Rrightarrow 9(4)\times 1\dfrac{1}{2}[/tex]

[tex]\\ \rm\Rrightarrow 36\times \dfrac{3}{2}[/tex]

[tex]\\ \rm\Rrightarrow 18(3)[/tex]

[tex]\\ \rm\Rrightarrow 54in^3[/tex]

Volume of each cube

[tex]\\ \rm\Rrightarrow side^3[/tex]

[tex]\\ \rm\Rrightarrow (1/2)^3[/tex]

[tex]\\ \rm\Rrightarrow\dfrac{1}{8}in^3[/tex]

Total cubes

[tex]\\ \rm\Rrightarrow \dfrac{Volume\:of\:prism}{volume\:of\:one\:cube}[/tex]

[tex]\\ \rm\Rrightarrow 54\div\dfrac{1}{8}[/tex]

[tex]\\ \rm\Rrightarrow 54(8)[/tex]

[tex]\\ \rm\Rrightarrow 432[/tex]

Pllllsssss help I’m having trouble

Answers

Answer:

that would probably be

Step-by-step explanation:

40

A florist sells flower bouquets. The table shows the prices for various amounts and kinds of bouquets.
Flower Bouquets
Tole Price
daisies
$23.90
tulips
$60.80
roses
?
A customer buys 3 bouquets of tulips and 2 bouquets of roses for $147.70. What is the price of a bouquet of roses?
$28.25
$29.54
$55.93
S86.90

Answers

Answer:

$28.25

Step-by-step explanation:

$28.25

Layla has 3/4 of a can of paint. She uses 2/3 of the paint for one wall in her bedroom. How much of the can did she use? PEASE ANWSER!

Answers

Answer:

8/12 of the can

Step-by-step explanation:

Make the denominator of both 12. Then 2/3 is 8/12.

Answer:

its A, she used 1/12 of the can

What is the least common multiple of 9 and 15?

Answers

Answer:

45

Step-by-step explanation:

Find prime factors

9 = 3 x 3

15 = 3 x 5

3 x 3 x 5 = 45

What is the surface area of a rectangular prism that is 4 inches long, 5 inches wide, and 8 inches tall?

Answers

Answer:

160

Step-by-step explanation:

4x5=20.

20×8=160

l×w×h.

PLEASE HELP !! ILL GIVE 40 POINTS ; PLUS BRAINLIEST !! DONT SKIP ANSWER.

Answers

The bottom left should be correct

the area of a rectangular garage is 32 square meters. the perimeter is 24 meters. what are the dimensions of the garage?

___ meters by ____ meters​

Answers

Answer:

8 meters by 4 meters

Step-by-step explanation:

2×8 + 2×4 = 16 + 8 = 24,

PLS HELP WILL GIVE BRAINLIEST

Malcolm's net worth is $3,475. His liabilities are $7,650.
What is the total
value of his assets?
A.) 3,475
B.) 7,640
C.) 10,005
D.) 11,115

Answers

i think it’s c or d i believe but i’m not 100% sure

The solution is, D.) 11,115 is the total value of his assets.

What is addition?

Addition is a way of combining things and counting them together as one large group. ... Addition in math is a process of combining two or more numbers.

here, we have,

given that,

Malcolm's net worth is $3,475.

His liabilities are $7,650.

now, we have,

the total value of his assets is:

we just have to add them.

$3,475 + $7,650

=11125

Hence, The solution is, D.) 11,115 is the total value of his assets.

To earn more on addition click:

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a laptop has listed a price of $807.99 before tax if the sales tax rate is 8.75% find the total cost of the laptop with the sales tax include round your answer to the nearest cent as necessary​

Answers

Answer:

Step-by-step explanation:

70.699125

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