The image of the point (1, -2) after a rotation of 180° about the origin is

(-2, 1)
(2, -1)
(-1, 2)

Answers

Answer 1

Answer:

(-1,2)

Step-by-step explanation:

Found answer on brainly.

Answer 2

Answer:

(-1,2)

Step-by-step explanation:

In this problem, the signs are switched because there is a rule to 180 rotation that is (x,y) to (-x,-y).

(1,-2)×(-1x, -1y)= (-1,2) .

if both points were negative, the points would be positive. if they were positive, they would be negative.


Related Questions

WILL MARK BRAINLIEST! A bag has 4 blue marbles, 6 green marble and 3 red marbles in it. What is the ratio proportion of pulling a red or green marble from the bag ? *

Answers

Answer:

9:13

Step-by-step explanation:

1 foot = 12 inches. 1 inch = 2.5 centimetres. Change 5 feet 10 inches to centimetres​

Answers

I guess the answer should be 177.8 cm.

The measurement of 5 feet 10 inches to centimeters​ is 175 centimeters.

What is Unit of Measurement?

Units of measurement are defines ad the definite magnitude of a physical quantity. It is used to find a number that shows the amount of something.

Here we have to convert the units of measurement feet and inches to centimeters.

We have,

1 foot = 12 inches and 1 inch = 2.5 centimeters

We have to change 5 feet 10 inches to centimeters​.

1 foot = 12 inches

⇒ 5 feet = 12 × 5 inches

              = 60 inches

So, 5 feet 10 inches = 60 inches + 10 inches

                                 = 70 inches

1 inch = 2.5 centimeters

70 inches = 70 × 2.5 centimeters

                 = 175 centimeters

Hence we got 5 feet 10 inches as 175 centimeters.

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If Mitchell buys 3/10 of a pound of cream cheese and 3/10 of a pound of sour cream, how much will he spend?

plain yogurt $5 per pound​
sour cream $5 per pound​
Greek yogurt $3 per pound​
cream cheese $3 per pound​

Answers

Answer:

$2.40

Step-by-step explanation:

Take the price of each item and divide by ten to find the cost of 1/10:

3 divided by 10 = .3

5 divided by 10 = .5

Then multiply by the amount he is purchasing:

.3 x 3 = .9

.5 x 3 = 1.5

Add the prices together for a total:

.9 + 1.5 = 2.4

A triangle height is 2/4 mm and the base is 8 mm. What is the area of the triangle?

Answers

Answer:

the answer would be 2mm^2

Answer:

2

Step-by-step explanation:

Triangle Area Formula: (b*h)/2

B: 8

H: 2/4= 1/2=0.4

8*0.5/2= 2

Area ofthe triangle= 2

I have no clue! Please help!

Answers

The answer would be 4m. By following the equation x^2+3^2=5^2, you would simplify and have x^2+9=25. Subtract 9 from 25 and you’ll get 16. After finding the square root you will get 4.

A $135.00 item is marked down by 30%.
What is the new cost of the item?
Round to two decimals if needed.



Answers

Answer:

135.00 multiplied by .30% will be 40.5

Answer:

You can also calculate how much you save by simply moving the period in 30.00 percent two spaces to the left, and then multiply the result by $135 as follows: $135 x . 30 = $40.50 savings. Furthermore, you can get the final price by simply deducting .

Step-by-step explanation:

Hey guys I need help with this exercise can someone plz help me for 20 points?? Also write the explanation to your answer plzz!

Math problem: Pirate Captain William Hawk left his hat on Treasure Island. He sailed 18km northeast through the Forbidden Straight, the 11km southeast to his home before realizing it was missing. If he sent his parrot to fetch his hat, how far did it need to fly?

Answers

Answer:

7 km

Step-by-step explanation:

If I subtracted 18km by 11km my answer would be 7km

Answer:

21.1 km

Step-by-step explanation:

The northeast line and the southeast line will make a right angle so use the Pythagorean Theorem: a^2 + b^2 = c^2 and calculate c.

18² + 11² = c²

324 + 121 = c²

445 = c²

c = 21.1 km

-4b - 5 + 2b =10. Can I have some help solving this.

Answers

Answer:

-7.5

Step-by-step explanation:

Simplify

-4b - 5 + 2b = 10

-2b - 5 = 10

-2b = 15

b = -7.5

Answer:

-7.5

Step-by-step explanation:

-4*- 7.5 =30

2*-7.5=   -15

30-5-15=10

Make the calculations mentally.

Type the answers in the boxes below.

1. 99+54 =

2. 244−99 =

3. 99 • 6 =

4. 99 • 15 =

Answers

Answer:

1. 99+54 = 153

2. 244−99 = 145

3. 99 • 6 = 594

4. 99 • 15 = 1485

1. 153
2. 145
3. 594
4. 1485

6,291 DIVIDED BY 3 = ?
its easy i know lets see if your smart.

Answers

Answer:

6,291÷3=2,097

Hope this helped :)

the answer is 2,097

Step-by-step explanation:

6,291 divided bt 3= 2,097

HELP ASAP WILL MARK BRAINLIEST
IF YOU DONT KNOW DONT ANSWER

Answers

Answer:

x = 13

48 = 5x - 17

+17        + 17

5x = 65

x = 13

Simplify: 327
A)
3
B)
4
0)
7
D)
8

Answers

You can’t simplify it because it’s a already a whole number.

what is the answer to z+10=5 ?

Answers

Answer:

z = -5

Step-by-step explanation:

z + 10 = 5

z = 5 - 10

z = -5

Answer: hope this helps ♡

z = -5

Step-by-step explanation:

z + 10 = 5

z + 10 - 10 = 5 - 10

z = -5

(double-check: -5 + 10 = 5 ✓)


Find the point on the terminal side of θ = negative three pi divided by four that has an x coordinate of -1. Show your work for full credit.

Answers

Answer:

(-1,-1)

Step-by-step explanation:

x = rcos(theta)

-1 = r cos(-3pi/4)

-1 = r(-sqrt(2)/2)

r = sqrt(2)

y = rsin(theta)

y = sqrt(2)sin(-3pi/4)

y = -1

(-1,-1)

you choose at random from the letters a,b,c and d and you roll a number cube once. what are the chances that you get an a and 5?

Answers

1/24 or 4%

There is a total of 24 outcomes
4 letters • 6 numbers = 24 possible outcomes
There are 6 different outcomes when it comes to each letter.
(a1, a2, b1, b2 etc)
so getting a5 is a 1/24 chance because there 24 outcomes and only one of them is a5

Answer:

[tex]\frac{1}{24}[/tex]

Step-by-step explanation:

A recipe calls for 1/6 teaspoon of vanilla extract. If the recipe is doubled, then how much vanilla extract is needed?

Answers

Answer:

1/3

Step-by-step explanation:

1/6 Doubled is 2/6

Simplified

1/3

3|2−x|=−6
can someone answer this question for me?? THNX!!!

Answers

I tried it and got no solution :/

Answer: the answer is 4

Step-by-step explanation:

3(2−x)=−6

Step 1: Simplify both sides of the equation.

3(2−x)=−6

(3)(2)+(3)(−x)=−6(Distribute)

6+−3x=−6

−3x+6=−6

Step 2: Subtract 6 from both sides.

−3x+6−6=−6−6

−3x=−12

Step 3: Divide both sides by -3.

−3x

−3

=

−12

−3

x=4

Answer:

x=4

The area of a wetland is 10,000 acres. A biologist predicts that the area of the wetland will change according to the equation y equals 10000 left-parenthesis 0.65 right-parenthesis Superscript x Baseline, where y is the area of the wetland after x years. Based on the biologist's prediction, what will the area of the wetland be in 2 years?

Answers

Answer:

4,225 acres

Step-by-step explanation:

If a biologist predicts that the area of the wetland will change according to the equation [tex]y = 10,000(0.65)^{x}[/tex] where;

y is the area of the wetland after x years

In order to determine the area of the wetland in 2 years based on the biologist prediction, we will substitute the value of x = 2 into the modeled equation as shown;

[tex]y = 10,000(0.65)^{2}\\y = 10,000 * 0.4225\\y = 4225[/tex]

The area of the wetland in 2 years based on the biologist prediction will be 4225 acres

Answer:

4225

Step-by-step explanation:

please help!! what is the solution to the equation

Answers

Answer:

A the first option

can someone explain the Pythagorean Theorem to me​

Answers

Answer:

The Pythagorean theorem deals with the lengths of the sides of a right triangle. ... The sum of the squares of the lengths of the legs of a right triangle ('a' and 'b' in the triangle shown below) is equal to the square of the length of the hypotenuse ('c').

Step-by-step explanation:

Is 2x^2+5x^2-8 a monomial, binomial or trinomial?

Answers

Answer:

trinomial

Step-by-step explanation:

plus and minus signs separate terms.

2x^2 is a term

5x^2 is another term

-8 is another term.

The given algebraic expression is binomial.

The given expression is 2x²+5x²-8 (7x²-8).

We need to check whether the given expression is a monomial, binomial or trinomial.

What are the different types of algebraic expression?

The different types of algebraic expression are explained below:

Monomial: An algebraic expression which consists of one non-zero term only is called a monomial.

Binomial: An algebraic expression which consists of two non-zero terms is called a binomial.

Trinomial: An algebraic expression of three non-zero terms only is called a trinomial.

Now, the given expression 7x²-8 as two terms.

Therefore, the given algebraic expression is binomial.

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David correctly factored the expression m^2 - ono
12m - 64.
Which expression did he write?
(1) (m-8)(m - 8) (3) (m - 16)(m + 4)
(2) (m - 8)(m + 8) (4) (m +16)(m - 4)
Explain why

Answers

Answer:

the correct option is number (3). It corresponds with the expression David factorised.

Step-by-step explanation:

David correctly factored the expression m² - 12m + 64, we want to check which one of the options he wrote.

(1) (m - 8)(m - 8) = (m - 8)²

= m² - 16m + 64

NOT THIS

(2) (m - 8)(m + 8) = m² - 8²

= m² - 64

NOT THIS

(3) (m - 16)(m + 4) = m² + 4m - 16m - 64

= m² - 12m - 64

THIS IS THE CORRECT OPTION AS IT CORRESPONDS WITH THE EXPRESSION DAVID FACTORISED

(4) (m + 16)(m - 4) = m² - 4m + 16m - 64

= m² + 12m - 64

NOT THIS

Eight cards are marked 3, 4, 5, 6, 7, 8, 9, and 10 such that each card has exactly one of these numbers. A card is picked without looking. Find the probability. Write the answer as a fraction.



P(greater than 5)



A.
5
9
5
9

C.
5
8
5
8

B.
3
8
3
8

Answers

Answer:

5/8.

Step-by-step explanation:

Prob( Card is > 5) = number of cards > 5 / total number of cards

= 5/8

Which number line plots the integers –2, 3, and 4?
A. A number line going from negative 5 to positive 5. Points are at negative 3, negative 2, and 4.
B. A number line going from negative 5 to positive 5. Points are at negative 4, negative 3, and 2.
C. A number line going from negative 5 to positive 5. Point are at 2, 3, 4.
D. A number line going from negative 5 to positive 5. Points are at negative 2, 3, 4.

Answers

Answer: A

Step-by-step explanation: Point A plots all the points needed.

Answer:

Numbro 1

Step-by-step explanation:

I took the test on edgn

Solve: Negative one-half + c = StartFraction 31 over 4 EndFraction

c = StartFraction 33 over 4 EndFraction

c = 8

c = StartFraction 29 over 4 EndFraction

c = 7

Answers

Answer:

A

Step-by-step explanation:

i am a bakon trust me

plz brainliest for bakon :D i know u want B)

Answer:

A

Step-by-step explanation:

got it right on edge so......

Which of these graphs represents a function


A.w
B.x
C.y
D.z

Answers

the graph the represent a function is D.z because it shows an actual function

The correct option is D. The graph z is representing a quadratic function.

What is a quadratic function?

In algebra, a polynomial function with one or more variables in which the highest-degree term is of the second degree is known as a quadratic function, a quadratic polynomial, a polynomial of degree 2, or simply a quadratic.

The general form of the quadratic functions is represented as below:-

y = ax² + bx + c

Where a,b, and c are the constants x and y are variables.

The graph of the quadratic functions will be parabolic on the x-y plane.

Therefore, the correct option is D. The graph z is representing a quadratic function.

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farmer brown has 24 crates of apples. he gives all of the apples to the teachers at his daughter's school. each teacher receives 3/4 of a crate of apples. work out how many teachers are at his daughter's school.

Answers

Answer:

32

Step-by-step explanation:

24/0.75=

32

Someone plz help what would this be

Answers

Answer:

5

Step-by-step explanation:

(125) ^ (1/3)

What number times itself times itself =125

a*a*a =125

5*5*5 = 125

how do you solve for rate in D=r(t)

Answers

Answer:

Its C

Step-by-step explanation:

I already did the test, and got it right.

What is distance between point X and point Y?
--------------------------------------------------------------------
StartRoot 11 EndRoot
StartRoot 22 EndRoot
StartRoot 61 EndRoot
StartRoot 72 EndRoot

Answers

Answer:

....

Step-by-step explanation:

using pythagoras :

[tex] \sqrt{ {6}^{2} + {5}^{2} } = \sqrt{61} [/tex]

Answer:

C. [tex]\sqrt{61}[/tex]

Step-by-step explanation:

The answer is [tex]\sqrt{61}[/tex]

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