A dilation centered at the origin with a scale factor of 2 can be denoted with the following notation: D2(x,y)=(2x,2y) . Find D4 for point A (−2,3) .

Answers

Answer 1

Answer:or point  A (-2, 3) is (-8,12).

Step-by-step explanation:


Related Questions

HELP ASAP!!!
Use Pythagorean Theorem to solve. Round to the nearest tenth •
33 cm
х
55 cm

Answers

Answer:

x= 44 cm

Step-by-step explanation:

[tex] {55}^{2} = {33}^{2} + {x}^{2} \\ {x}^{2} = 3025 - 1089 \\ {x}^{2} = 1936 \\ x = \sqrt{1936} = 44[/tex]

helpppppppppppppppppppppp

Answers

Answer:

t = 30

Step-by-step explanation:

[tex]\frac{6}{1} = \frac{t}{5}[/tex]

you can tell you need to multiple by 5 from the denominators. 1 *5 = 5. Then, just multiply 6 by 5 and get 30.

The answer is 30..........

the numerical coefficient in the expression -3×y² is​

Answers

The numerical coefficient for the expression how much of the variables, in this case xy^2 there are in number form. There is only one number in this question so it makes it fairly straight forward. The answer is -3.

The ratio of the number of girls to the number of boys in a classroom 6:5. After 16 girls left the room, the ratio became 2:3. How many girls were there at first?

Answers

Answer:

5/6 se eu não me engano.

Step-by-step explanation:

ajudareroesp

Find the value of x and the value of the given angle using the picture below?

Answers

Answer:

I think it is 81x

Step-by-step explanation:

It look the same as angle B which is 121 degree. 81x +40 = 121 degree.

it’s 81x. sorry if i’m wrong!

Baldwin made a scale drawing of the town library. He used the scale 1 centimeter : 9 meters. The parking lot is 9 centimeters in the drawing. How long is the actual parking lot?

Answers

Answer:

81m

Step-by-step explanation:

1/9 = 9/x

x = 81

81 meters
Because the ratio is 1:9 if you wanna change the centimeters you have to do it on both sides
So what times 1 equals 9? 9
So multiply the meters by 9.

Can someone help me with this?

Answers

9514 1404 393

Answer:

x = 10y = 7.5

Step-by-step explanation:

The ratio of the larger to the smaller corresponding sides is ...

  12.5/5 = 2.5

That means ...

  x = 2.5 × 4 = 10

  y = 2.5 × 3 = 7.5

- 5x + 9y = - 32
-5x - 3y = 4

Answers

Answer: look at the picture

Step-by-step explanation: Hope this help :)

Solve the following system of equations using substitution, elimination, or elimination by multiplication

Answers

Answer: B

Step-by-step explanation:

The measure of the second angle is 15 degrees more than the measure of the first angle the measure of the third angle is 45 degrees more than the measure of the first angle tine the measures of the interior angles in the triangle

Answers

Answer:

The measures of the three interior angles of the triangle are {40,55,85}.

Step-by-step explanation:

Let a = the measure of the first angle of the triangle.

Let b = the measure of the second angle of the triangle.

Let c = the measure of the third angle of the triangle.

The problem statement tells us that

(1) a = a

(2) b = a + 15 and

(3) c = a + 45

Now we (should) know that the sum of the three angles of a triangle is 180 degrees. Then we get

(4) a + b + c = 180 or by substitution we get

(5) a + (a + 15) + (a + 45) = 180 or

(6) a + a + 15 + a + 45 = 180 or

(7) 3*a + 60 = 180 or

(8) 3*a = 180 - 60 or

(9) 3*a = 120

 

Now divide both sides of (9) by 3 to get

(10) 3*a/3 = 120/3 or

(11) a = 40

Using (2) and (3) we get

(12) b = 40 + 15 or

(13) b = 55 and

(14) c = 40 + 45 or

(15) c = 55

Always check the answer. Use (4)

Is (40 + 55 + 85 = 180)?

Is (95 + 85 = 180)?

Is (180 = 180)? Yes

The measures of the three interior angles would be as follows:

40°,55°,85°

If we assume the first angle(∠1) to be [tex]x[/tex],

so, the second angle(∠2) [tex]= x + 15[/tex]

while the third angle(∠3) [tex]= x + 45[/tex]

Through the Angle Sum Property, we know:

∠1 + ∠2 + ∠3 = 180°

By applying the above expressions, we get

[tex]x + (x + 15) + (x + 45) = 180[/tex]°

⇒ [tex]3x + 60 = 180[/tex]

⇒ [tex]3x = 180 - 60[/tex]

⇒ [tex]x = 120/3[/tex]

∵ [tex]x = 40[/tex]°

Therefore,

∠1 = 40°

∠2 = 40° + 15°

= 55°

∠3 = 40° + 45°

= 85°

Thus, the measures of the angles are 40°,55°, and 85°

Learn more about "Angles" here:

brainly.com/question/11990585

Mrs. Beads grouped her students two different waysFirst, she students into groups with the same number of students in each group No students were leftover. Then she put students into 6 group with the same number of students in each group with none leftover
A) 14
B) 16
C) 18
D) 24
E) 30

Answers

it’s number number c because 18 x 2 gives you 36 and 36/6 gives you 6 groups hope it helps!

Ill give you brainliest and 5 stars help plz

Answers

Answer:

D

Step-by-step explanation:

It is going from top left to bottom right, so we now it is a negative slope. This leaves us with B or D. When the y axis decreases 1 (aka (x,-1)) the x axis is at 4. Rise/run is 1/4.

Which expression is equivalent to -5(8x+9) -7x?

A. -33x+9
B. -47x-45
C. -33x - 45
D. 33x - 45

Answers

C.

Hope this helps

Brainliest plzzzz

Answer:

b

Step-by-step explanation:

-5(8x+9)-7x

-40x-45-7x

-47x-45

PLZ HELP!!!! WILL GIVE BRAINLIEST IF CORRECT! The social studies teacher wants to know whether the students in the entire school prefer a model United Nations activity or a student government activity. The teacher draws a random sample from the following groups:

All teachers in the school
All boys in each grade
All students in each grade
All students in the social studies club
Which group best represents the population he should take a random sample from to get the best results for his survey? (5 points)

Question 1 options:

1)

All teachers in the school

2)

All boys in each grade

3)

All students in each grade

4)

All students in the social studies club

Answers

3  is the answer

you're welcome

Step-by-step explanation:

4 is the answer since the question asks if the student would prefer so to get a better opinion you'd have to ask ever student in all grade

A small plane took 3 hours to fly 960 km from Ottawa to Halifax with a tail wind. On the return trip, flying into the wind, the plane took 4 hours. Find the wind speed and the speed of the plane in still air. (5 marks)

Answers

Answer:

hxjdgetjettjittteitejetjetkrtir

hi what is 24/30 simplified to

Answers

Answer:

12/15 or .8

Step-by-step explanation:

So first you divide both the numerator and denominator by 2 because it’s the biggest number that goes into both 24 and 30

24 and 30 simplified by 2 gives us 12 and 15

you can’t simplify any further so your answer is 12/15

If you want a decimal, then you divide 24 by 30 and your answer is .8

the Johnson family went out to dinner and spent a total of $68.32 before tax. if tax is 6% of the total meal, how much will the family pay in total?​

Answers

Answer:

72.68 would be your total.

Step-by-step explanation:

Round to the nearest ten thousand.

758,928

Answers

Answer:

760,000

Step-by-step explanation:

In fact, weather on consecutive days depends on similar atmospheric conditions and therefore consecutive days are not independent events.With the weather forecast of the previous exercise, the probability that it rains over the weekend (either Saturday or Sunday) isA. 0.7516B. 0.3758 C. 0.2484D. Because consecutive days are not independent, we cannot compute P(rain both days) with the information given.

Answers

Question is incomplete :

The weather forecast for the weekend is a 46% chance of rain for Saturday and a 54% chance of rain for Sunday. If we assume that consecutive days are independent events, What is the probability that it rains over the weekend (either Saturday or Sunday)? Please use 3 decimal places.

In fact, weather on consecutive days depends on similar atmospheric conditions and therefore consecutive days are not independent events.With the weather forecast of the previous exercise, the probability that it rains over the weekend (either Saturday or Sunday) isA. 0.7516B. 0.3758 C. 0.2484D. Because consecutive days are not independent, we cannot compute P(rain both days) with the information given.

Answer:

0.7516 ;

D.) Because consecutive days are not independent, we cannot compute P(rain both days) with the information given.

Step-by-step explanation:

Let :

Saturday = A ; Sunday = B

P(A) = 0.46 ; P(B) = 0.54

If A and B are independent :

P(AuB) = P(A) + P(B) - P(AnB)

P(AnB) = P(A) * P(B) = 0.46 * 0.54 = 0.2484

P(AuB) = 0.46 + 0.54 - 0.2484

P(AuB) = 0.7516

If A and B are not independent, and how the weather on Saturday affect the weather on Sunday and vice versa. Hence, we cannot compute AuB

What is the value of the expression 42x3 - (2^4 - 1)/5

Answers

Answer:

The answer is 123.

Step-by-step explanation:

1
Suppose f(x) = x2 - x - 12, g(x) = x + 3, and h(x) = 6x - 1. Which of the following function operations are
three that apply.
A (g x h)(x) = 6x2 + 17x-3
B (n + 1)(x) = x2 + 5x - 13
C (f = g)(x) = x - 4
D (f - h)(x) = x2 - 7x-13
E (g- h)(x) = 5x - 4
о

Answers

BBBBBBBBBBBBBBBBBBBBBBBBBBB

Nancy bought a package of 4 spiral notebooks for a total cost of $18.25. Which equation represents p, the cost, in dollars, of each notebook?

Answers

Answer:

p=18.25/4

p=$4.56 (when you round)

Step-by-step explanation:

Brainliest?!?!?!?!?

The probability that Brian buys a sandwich is 0.1. The probability that Brian gets the bus is 0.6. Assuming the events are independent, what is the probability that Brian buys a sandwich and gets the bus?

Answers

Answer:

6% chance

Step-by-step explanation:

I think it would be 0.1 * 0.6 which is 0.06

Answer:

Step-by-step explanation:

When a number is decreased by 8.3%, the result is 50. What is the original number to the nearest tenth?

Answers

I'm pretty sure the answer would be 2.

Sorry if it's wrong

If a quantity is decreased by x% the new value of that quantity is (100 -x)% of the old one.The value of original number nearest to tenth is 55.

What is percentage?

A percentage is a value that indicates 100th part of any quantity.

To convert percentage into a fraction it is divided by 100.

Given that,

The percentage of decrease = 8.3%

The number obtained after decrease = 50

Since the number obtained after decrease is the original number minus the decrement in the number by 8.3%.

Thus, the expression for original number N is given by,

N - 8.3% of N = 50

=> N - (8.3 / 100) × N = 50

=> (91.7 / 100) × N = 50

=> N = 50 × (100 / 91.7)

=> N = 54.52

Nearest to tenth its value is 55.

Hence, the original number nearest to tenth is 55.

To know more about percentage click on,

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If you spend $400 on a new phone and it is depreciating about 50% per year , how much will it be worth by its third year?

Answers

Answer:

50$

Step-by-step explanation:

after 1 year: 200

after 2 years 100

after 3 years 50

Answer:

It will be worth $50 dollars after 3 years

You want to put a 3 inch thick layer of topsoil for a new 23 ft by 24 ft garden. The dirt store sells by the
cubic yards. How many cubic yards will you need to order? The store only sells in increments of 1/4 cubic
yards.
cubic yards

Answers

46 Yards or 184 Orders of 1/4 Cubic Yards

So first you need to find the area of the plot; 552. Then you need to find out how much soil you will need. There are 12 inches in a foot so if you have 3 inches you have .25 of a foot. So you multiply 552 by .25 and get 138. 138 is how many cubic feet you need. Therefore, you need to divide this number by 3 in order to convert this to yards (3 feet in a yard). This will bring you to 46. Finally, we need to multiply this number by 4 because they only sell in 1/4 cubic yards.

Identify the y-intercept for the line 4x – 2y = 4
Give your answer as a coordinate.
PLEASE HELP ASAP

Answers

Answer: (0,-2)

Step-by-step explanation: uhdehdwhehehhH

What is the perimeter?

Answers

Answer:

43

Step-by-step explanation:

add up each side

14 + 14 = 28

28 + 6 = 34

34 + 9 = 43

Can anyone please help me with this!!! :(

Answers

Answer:

ano ba gagawin

parang Ang Dali pero ano gagawin dyan

Hi there!

For this problem, pretty much add all of them and then subtract with 22 to find how much Jen ran on Friday.

Monday+Tuesday+Wednesday+Thursday:

Simplify all terms and find all common denominators:

Common denominator: 8

[tex]4 \frac{3}{4} = 4 \frac{6}{8}[/tex]

[tex]5 \frac{1}{8} = 5 \frac{1}{8}[/tex]

[tex]6 \frac{1}{4} = 6 \frac{2}{8}[/tex]

Combine all terms:

[tex]4 \frac{6}{8} + 5 \frac{1}{8} + 6 \frac{2}{8} = 15 \frac{9}{8}[/tex]

Simplify 15 9/8 or else can’t subtract with 22.

[tex]9/8 = 1 \frac{1}{8}[/tex]

[tex]15 + 1 \frac{1}{8} = 16 \frac{1}{8}[/tex]

Turn 22 into 21 8/8...

Subtract: 21 8/8 with 16 1/8

[tex]21 \frac{1}{8} - 16 \frac{1}{8} = 5 \frac{7}{8}[/tex]

This means that 5 7/8 is how much mile Jen must run on Friday to reach her goal.

The area of a rectangle 320in^2. The ratio of the length to the width is 5:4. Find the length and the width

Answers

Answer:

30 in length 24inches width

Step-by-step explanation:

Multiply the multiples if 5 and 4 together until you reach 720.

5*4=20

10*8=80

15*12=180

20*16=320

25*20=500

30*24=720

Your length is 30 in and your width is 24in.

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