Abcd is rotated counterclockwise about the origin.By how many degrees was abcd rotated?

Answers

Answer 1

Answer:

The rotation is 270 degrees counterclockwise

Step-by-step explanation:

Given

See attachment

Required

Degrees of rotation

From the question, the rotation is counterclockwise

Using point B and B' as points of reference.

[tex]B =(2,5)[/tex]

[tex]B' =(5,-2)[/tex]

The rule that supports the above is: rotation by 270 degrees counterclockwise.

Because the rule is:

[tex](x,y) ==>(y,-x)[/tex]

Abcd Is Rotated Counterclockwise About The Origin.By How Many Degrees Was Abcd Rotated?

Related Questions

Las calificaciones obtenidas por un grupo de 49 alumnos en una prueba con las siguientes: 3.0; 5.5; 4.4; 6.0; 4.3; 7.2; 4.7; 6.5; 6.7; 4.0; 5.9; 5.8; 1.4; 3.2; 5.8; 4.6; 4.1; 3.5; 6.8; 5.0; 5.9; 2.1; 4.2; 4.5; 4.1; 4.8; 2.8; 4.7; 7.7; 6.0; 3.0; 5.7; 4.5; 4.9; 3.3; 4.8; 4.7; 7.7; 6.0; 3.0; 5.7; 4.5; 4.9; 3.3; 4.8; 4.7; 5.2; 3.8; 6.1. Agrupa en siete intervalos estos datos y construye la tabla de frecuencias correspondientes, hallando los valores de la media, la mediana y la moda de los mencionados datos

Answers

Answer:

nosejgivuguvug7gug7g7g

Step-by-step explanation:

pol

Twenty students out of 80 kids had pizza for lunch. What is the percentage of students that had pizza for lunch?



Please help!!!

Answers

Answer:

25%

Step-by-step explanation:

20/80 = 2/8 = 1/4

1/4 = 0.25

0.25 x 100 = 25

so 25%

Answer:

0.25

Step-by-step explanation:

Divide 20 by 80

There are 3 fourths as many cows as pigs on an animal farm. If there are 35 pigs and cows on the farm, how many of them are pigs?

Answers

there are 17.5 cows and 17.5 pigs since 3/4 is 75%

Can Someone help me out

Answers

Answer:

D 0.9988

Step-by-step explanation:

* This is the correct answer, I have taken the test and am posting the answers in hopes of helping other people :] *

Based on the diagram, what is tanA?



Enter your answer in the boxes.

tanA=

Answers

Aw that's really nice of you thanks

thank you <3 appreciate it loads

Find the value of x to the nearest degree.

Answers

Answer:

A. 66

Step-by-step explanation:

180 - 90 = 90

90 - 24 = 66

Answer will be 66

Hope this helps!

round to nearest thousandth
0.227​

Answers

Answer:

is there another number after the 7 if so if it is 5 or bigger it rounds up but 1-4 rounds down

Step-by-step explanation:

Answer:

0.23!! =D

hundredths (1/100)

Talia bas 26 $1 coins, 20-cent coins, 50-cent coins. The number of $1 coins is 6 more than the number of 20-cent coins. The total value of the coins is $17.20. How many 50-cent coins are there?

Answers

Answer:

8 fifty cents coin.

Step-by-step explanation:

Let's assign variable for the unknown number of coins.

Let there are 'x' number of $1 coins

'y' number of 20 cent coins

'z' number of 50 cent coints.

Totally there are 26 coins.

So, x+y+z=26

Now, there are 6 more $1 coins than 20-cent coins.

We can set up equation for this as

x= y+6

Now, total value of these coins is $17.20

We can setup equation as

100 x+20 y+50 z=1720

Now, substitute x as y+6

100(y+6) +20 y+50 z =1720

Distribute the 100 to get rid ( )

100 y+600 +20 y+50 z=1720

Combine like terms

120 y+50 z= 1120

Keep this equation as it is.

Plug in x as y+6 into x+y+z=26

y+6+y+z=26

2y+z=20

Now, take the two equations

2y+z=20

120y+50z=1120

Multiply first equation by -60 to eliminate the y terms when we add them.

-120y-60z=-1200

120y+50z= 1120

-------------------------

     -10z =-80

Divide both sides by -10

z=8

Now, plug in z as 8 into 2y+z=20

2y+8 =20

Subtract both sides 8

2y=12

Divide both sides by 2

y=6

Now, plug in y, z values into the first equation.

x+6+8=26

x+14=26

Subtract both sides 14

x=12

So, there are eight 50-cent coins.

True or false? A correct answer is worth (2 pts). Explain how you know for the additional (2 pts). Using complete sentence for (1 pts)



(5,2) is a solution to the equation 2x + 3y = 10.

Answers

answer (in words)

FALSE. the coordinate pair (5, 2) is not a solution to the equation [tex]2x+3y=10[/tex]. in order to figure out whether or not the statement is true or false, plug the [tex]x[/tex] and [tex]y[/tex] values from the coordinate pair (5, 2) into the given equation, [tex]2x+3y=10[/tex]. if both sides of the equation end up equal, the coordinate pair is a solution to the equation. if not, the coordinate pair is not a solution to that equation.

(i hope i explained that well enough, i'm better at explaining it algebraically as opposed to putting it into words lol)

answer (algebraic/steps for solving)

first, plug in 5 for [tex]x[/tex] in the equation [tex]2x+3y=10[/tex].

[tex]2x+3y=10[/tex] ⇒ [tex]2(5)+3y=10[/tex]

then plug in 2 for [tex]y[/tex].

[tex]2(5)+3y=10[/tex] ⇒ [tex]2(5)+3(2)=10[/tex]

now your equation is [tex]2(5)+3(2)=10[/tex]. all that's left to do is to simplify. you can do this in whatever order you'd like, but i'll start with multiplying 2 · 5.

[tex]2(5)+3(2)=10[/tex] ⇒ [tex]10 + 3(2) = 10[/tex]

multiply 3 · 2.

[tex]10 + 3(2) = 10[/tex] ⇒ [tex]10 + 6 = 10[/tex]

add 10 + 6.

[tex]10 + 6 = 10[/tex] ⇒ [tex]16=10[/tex]

16 and 10 are not equal, therefore (5, 2) is not a solution to the equation [tex]2x+3y=10[/tex]. in order for a coordinate pair to be the solution to an equation, both sides of the equation need to end up equal after solving and simplifying.

i hope this helps! have a great rest of your day <3

Which number line shows point M at 4/3?

Answers

Answer:

D

Step-by-step explanation:

going to the number "4" 3 dots down is 4,3

1/3 x - 6 = 3 what is the answer for x

Answers

Answer:

x = 3

Step-by-step explanation:

Answer:

x=27

Step-by-step explanation:

Marissa went on a trip and drove her car throughout the day. The graph below shows Marissa's distance from the starting point of her trip for different segments of time

What’s the answer to this please?​

Answers

Can you attach the photo

What is the value of x?
Enter your answer in the box.
mm

Answers

Answer:

1938

Step-by-step explanation:

if i made 70 dollars a week how much would i make in a month

Answers

Answer:

there are 4.3 weeks in a month

so then,

4.3 × 70 = 301

the awnser is:

301 dollors per month

Which of these factored expressions are equivalent to 15x+45? Select all that apply

A-3(5x+15)
B-5(3x+9)
C-15(x+3)
D-15(x+45)

Answers

Answer:

A, B, C

Step-by-step explanation:

15x+45

3 (5x + 15)

5(3x +9)

15(x + 3)

Rebecca's window store made a mosaic for the community center. The mosaic had a 7 × 7 array of different color square tiles. If each tile is 3 1/2 ft long, what is the area of the whole mosaic?

Answers

Answer:

600 1/4 ft²

Step-by-step explanation:

Window is a 7 * 7 square array

Length per tile = 3 1/2 ft long

Dimension of entire array :

3 1/2 * 7 by 3 1/2 * 7

7/2 * 7 by 7/2 * 7

49/2 by 49/2

Recall : Area of a square = a² ; where a = side length

Area of entire array :

49/2 * 49/2 = 2401 / 4 = 600 1/4 ft²

Which graph depicts the path of a projectile?

Answers

Answer:

The second option.

Answer:

its B

Step-by-step explanation:

Kevin is making a picture frame. He has a piece of trim that is 3 feet long.

How many 14−inch-long pieces can Kevin cut from the trim?

How much of a foot will he have left over?

Kevin can cut______ 14−inch-long pieces with______ of a foot left over.

Answers

Kevin can cut 2 14-inch long pieces with 2/3 of a foot left.

Caffeine leave the body or continuous rate of 18% per hour of Alexa drinking energy drink that contains 110 mg of caffeine how much caffeine will be in your bloodstream after 12 hours

Answers

Answer:

10.168 mg

Step-by-step explanation:

Amount of caffeine in body = 110 mg

Decreases at the rate of rate of 18% per hour

how much caffeine will be in your bloodstream after 12 hours

After the first hour;

New amount = 110 - (0.18 * 110) = 90.2 mg

After the second hour;

New amount = 90.2 - (0.18 * 90.2) = 73.964 mg

After the third hour;

New amount = 73.964 - (0.18 * 73.964) = 60.65 mg

After the fourth hour;

New amount = 60.65 - (0.18 * 60.65) = 49.733 mg

After the fifth hour;

New amount = 49.733 - (0.18 * 49.733) = 40.78 mg

After the sixth hour;

New amount = 40.78 - (0.18 * 40.78) = 33.44 mg

After the seventh hour;

New amount = 33.44 - (0.18 * 33.44) = 27.4208 mg

After the eighth hour;

New amount = 27.4208 - (0.18 * 27.4208) = 22.485 mg

After the ninth hour;

New amount = 22.485 - (0.18 * 22.485) = 18.4377 mg

After the tenth hour;

New amount = 18.4377 - (0.18 * 18.4377) = 15.119 mg

After the eleventh hour;

New amount = 15.119 - (0.18 * 15.119) = 12.40 mg

After the twelfth hour;

New amount = 12.40 - (0.18 * 12.40) = 10.168 mg

determine the total surface area.

Answers

Answer:

15 x 8 x 11 x 17 = 22440

In ΔPQR, the measure of ∠R=90°, PQ = 5.7 feet, and RP = 3.8 feet. Find the measure of ∠P to the nearest tenth of a degree.

Answers

Answer:48.1897 = 48.2

Step-by-step explanation: cos P= 3.8/5.7

P= cos-1 (3.8/5.7)

P=48.1897 = 48.2

What is the sum of 10.347+4.178=

Answers

the sum is 14.525 ,

Answer:

The answer is 14.525

Step-by-step explanation:

10. 347

+ 4. 178

_________

14 . 525

Thus, the answer is 14.525.

plzzzz help meee.......​

Answers

Answer: [tex]-3\hat{i}-6\hat{j}+2\hat{k}[/tex]

Step-by-step explanation:

Given

[tex]\vec{a}=2\hat{i}+4\hat{j}-5\hat{k}\\\vec{b}=\hat{i}+\hat{j}+\hat{k}[/tex]

[tex]\vec{c}=\hat{j}+2\hat{k}[/tex]

The addition of the three is [tex]\vec{a}+\vec{b}+\vec{c}[/tex]

[tex]\vec{a}+\vec{b}+\vec{c}=(2\hat{i}+4\hat{j}-5\hat{k})+(\hat{i}+\hat{j}+\hat{k})+(\hat{j}+2\hat{k})[/tex]

[tex]\vec{a}+\vec{b}+\vec{c}=3\hat{i}+6\hat{j}-2\hat{k}[/tex]

vector opposite to the vector  [tex]\vec{a}+\vec{b}+\vec{c}\ \ \text{is}\ -(\vec{a}+\vec{b}+\vec{c})[/tex]

[tex]\therefore -(\vec{a}+\vec{b}+\vec{c})=-3\hat{i}-6\hat{j}+2\hat{k}[/tex]

Cristian brought d starbursts to school and combined them with Angel's j starbursts. He then split them equally among 8 friends. Write an expression to represent the situation.

Answers

Answer:

(d+j) ÷8

Step-by-step explanation:

round nearest hundredth​

Answers

Answer:.

Step-by-step explanation:nearest hundredth the answer for this question is joe mama

a glass top of an office table is in the form of rectangle. The diagonal of the table have length 5x-11 and 2x+25

1.what is the value of x?
2.what us the length of the diagonal?​

Answers

Answer:

1) The value of [tex]x[/tex] is 12.

2) The length of the diagonal is 49.

Step-by-step explanation:

1) If the glass is a rectangle, then both diagonal must have the same length, that is, the following equation must be solved:

[tex]5\cdot x - 11 = 2\cdot x + 25[/tex] (1)

We need some algebraic handling to determine the value of [tex]x[/tex]:

[tex]5\cdot x - 11 = 2\cdot x + 25[/tex]

[tex]5\cdot x - 2\cdot x = 25 +11[/tex]

[tex][5+(-2)] \cdot x = 36[/tex]

[tex]3\cdot x = 36[/tex]

[tex]x = 12[/tex]

The value of [tex]x[/tex] is 12.

2) If we know that [tex]x = 12[/tex], then the length of the diagonal ([tex]d[/tex]) is:

[tex]d = 2\cdot x + 25[/tex]

[tex]d = 49[/tex]

The length of the diagonal is 49.

The measures of the angles of a triangle are shown in the figure below. Find the
measure of the largest angle.

Answers

i can’t see the bottom numbers

Find the area of the isosceles triangle

Answers

Answer:

could you add the picture? then i will edit my answer to give you the actual answer

Step-by-step explanation:

-4(v + 1) = 2(1 - 20) - 6

Answers

17 ish the moon is a little glitch and it looks good but it’s not a problem to get the back up and I have orange juice

Answer:

v=10

Step-by-step explanation:

-4(v+1)=2(1-20)-6

step 1

distribute the -4 to v and 1 and distribute the 2 to 1 and --20

-4xv=-4v-4x1=-4      2x1=2 2x-20=-40

now we have -4v-4=2-40-6

step 2 combine like terms

the only like terms are -6 and -40 2

-6+-40+2=-44

now we have

-4v-4=-44

step 3 add 4 to each side

4+-44=-40

-4+4 cancels out

were left with

-4v=-40

the last step is to divide each side by -4

-4/-4 cancels out

-40/-4=10

in conclusions

v=10

have a great day :D

1
Select the correct answer.
What is the general form of the equation of a circle with center at (a, b) and radius of length m?
OA. x + y2 - 2ax – 2by + (a? + b2 - m?) = 0
OB.
x+y + 2ax + 2by+ (a1 + b2 - m?) = 0
O c.
x + y2 - 2ax - 2by + (a + b-m) = 0
OD. x + y2 + 2ax + 2by + 32 + b2 =-m?
Reset
Next

Answers

The correct sender to this equation is C

The general form of an equation of a circle with center at (a, b) and radius of length m is x² + y² - 2ax - 2by + (a² + b² - m²) = 0.

What is Circle?

Circle is a two dimensional figure which consist of set of all the points which are at equal distance from a point which is fixed called the center of the circle.

Standard form of a circle is given by the equation,

(x - h)² + (y - k)² = r²

where, (h, k) is the center of the circle and r is the radius of the circle.

Here center is given as (a, b).

Radius is given as m.

Substituting,

(x - a)² + (y - b)² = m²

x² - 2ax + a² + y² - 2by + b² = m²

x² + y² - 2ax - 2by + (a² + b²) = m²

x² + y² - 2ax - 2by + (a² + b² - m²) = 0

Hence the required equation is, x² + y² - 2ax - 2by + (a² + b² - m²) = 0.

Learn more about General Form of Circle here :

https://brainly.com/question/10618691

#SPJ7

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