please help just tell me what they did wrong

Please Help Just Tell Me What They Did Wrong

Answers

Answer 1

Answer:

Step-by-step explanation:

If a point (x, y) is dilated by a scale factor of k, coordinates of the image point will be (kx, ky).

Rule that defines the dilation,

(x, y) → (kx, ky)

From the graph attached,

Coordinates of point A → (-4, 2)

Coordinates of image point A' → (-8, 4)

By the rule of dilation given,

A(-4, 2) → A'(-4k, 2k)

Since, A'(-4k, 2k) = A'(-8, 4)

Therefore, -4k = -8 ⇒ k = 2

1). Mistake in the answer → A is the preimage and A' is the image

   While A has been used as image and A' as preimage.

2). Always use the rule of dilation A(x, y) → A'(kx, ky)  

   Here, A and A' are the preimage and image points respectively.

   And 'k' is the scale factor by which point A has been dilated to form image point A'.


Related Questions

What is 2 times 2 minus 1?
I’ll give brainliest

Answers

Answer:

3

Step-by-step explanation:

Answer:

This is basically just 2*2 = 4 - 1 = 3

Step-by-step explanation:

NO LINKS please. Someone help

Answers

Answer:

square root of 65

Step-by-step explanation:

all i am going to say is, Pythagorean theorem.

What does a low interest rate indicate?

A poor salary

Increased risk

A higher credit score

Zero loan fees

Answers

9514 1404 393

Answer:

  A higher credit score

Step-by-step explanation:

Interest rates are generally set based on at least a couple of factors:

what the market will bear (competition)the risk associated with a loan

Folks who have a lower level of disposable income, or who have a history of missed payments or loan defaults are likely to have a lower credit score. Loans offered will likely have a higher interest rate than for someone with a better credit score.

Loan fees may be reduced also when interest rates are reduced.

Based on the above discussion, we see that lower loan fees, higher credit score, and lower interest rates are all positively correlated. One does not necessarily indicate another.

Of the choices offered, we suppose "a higher credit score" is most likely the desired answer.

Answer:

A higher credit score

Step-by-step explanation:

Remember, you can only get low interest rate if you have a high credit score.

On a fith grade benchmark exam with 55 questions total sunny answerd 80 % of them how many questions did he answer correctly

Answers

Answer:

44 answers

Step-by-step explanation:

80% of total questions are answered, ie 80% of 55 questions are answered.

So, (80/100) x 55 , ie 44 questions are answered.

Assuming that all answered questions are correct, 44 answers are correct.

What is the value of x?


Enter your answer in the box.

x =

Answers

Answer:

x = 4

I just took the test!

This is correct!!

The lines shown below are parallel. If the green line has a slope of 3, what is
the slope of the red line?
please help

Answers

Answer:

3

Step-by-step explanation: parallel means same

Answer:

D. 3

HOPE THIS HELPS

-Todo <3

Step-by-step explanation:

What is the MEAN of the data - (12, 8, 6, 12, 16, 12) *

helppp

Answers

Answer: the mean is 11

Step-by-step explanation:

Answer:

11

Step-by-step explanation:

Add them all together then divide by the nuber of variables


A cube has edges measuring 7 centimetres each. Determine the surface
area of the cube.

Answers

Answer: I think its 294cm²

What is the value of x?
a . 75
b . 25.5
c . 8
d . 4.5

help meeee

Answers

Answer:

d. 4.5

Step-by-step explanation:

10x-5=16x+22

    -22      -22

10x-27=16x

-10x      -10x

-27=6x

x=4.5

The answer is d 4.5

Please help! If you put in a link I will report no scammers please. This is 8th grade math help!

Answers

Answer:

A

Step-by-step explanation: I get it correct on my assegment

an agricultural engineer is designing a commercial fishery that will raise tilapia. The fishery will have a cylindrical aquaculture tanks with the dimensions of 10ft at the widest point and 4ft in height. What is the volume of the tank?

Answers

Given:

The diameter of a cylindrical aquaculture tank = 10 ft

Height = 4 ft

To find:

The volume of the tank.

Solution:

We have,

Height = 4 ft

Diameter = 10 ft

Radius is half of the diameter.

Radius = 5 ft

Volume of a cylinder is:

[tex]V=\pi r^2h[/tex]

Where, r is the radius and h is the height.

Putting [tex]r=5, h=4[/tex] in the above formula, we get

[tex]V=\pi (5)^2(4)[/tex]

[tex]V=\pi (25)(4)[/tex]

[tex]V=100\pi [/tex]

Therefore, the volume of the tank is [tex]100\pi [/tex] cubic ft. Its approximate value is 314.16 cubic feet.

4 m =____ μm??
Someone? i need to the answer:)

Answers

4000000 micrometers

Examine the system of equations.

−5x + 5y = 40
4x + 3y = 24

What is the solution?

Answers

answer

x=6,y=14

Step-by-step explanation:

make -5x+5x=40 as equation (1)

4x+3y=24...... (2)

Find equation (3) from (1)

-5x+5y=40

-5x/-5=(40-5y)-5

x= y-8............. (3)

Substitute (3) from (2)

4x+3y=24

4 (y-8)+3y=24

4y-32=24

4y=24+32

4y=56

y=14

find x from equation (3)

x=y-8

x=14-8

x=6

Julie drinks 4 bottles of water every day. How many
bottles of water does she drink in a week?
A. 20
B. 22
C. 24
D. 26
E. 28

Answers

Answer:

28 bottles

Step-by-step explanation:

4 bottles per day, 7 days a week.

4 x 7 = 28 bottles

Answer:

28 bottles

Step-by-step explanation:

7 days in a week, multiply 4 by 7 and you get 28.

Please help thank you

Answers

Answer:

hdjhdhdhdjdvdvddiwhegwiwiwhegeeuui

Describe and correct the error in solving the equation.

27 = n-15

-15 +15

12 = n

Answers

The error is that 15 was subtracted on the left side when it should’ve been added.
Corrected equation:
27 = n-15
Add 15 to both sides
42 = n

I need help with this question​

Answers

Answer:

I thinks its F because you cant factor it

Step-by-step explanation:

Answer:

F) The expression does not have a real factor

Is six pen cost $2.10 what is the unit price of the pen?

Answers

Answer:

3.20

Step-by-step explanation:

Answer:

0.35

Step-by-step explanation:

i just divided 2.10/6

Mark and his 3 friends agreed to join the School’s talent show. They then decided how to pick the song that they will sing for the show. They decide to roll a number cube. The person with the lowest number chooses the song. If Mark’s friends rolled a 6, 5 and 2. What is the probability that Mark will get to choose the song? Show your work

Answers

Answer:

1/6

Step-by-step explanation:

In order to get to choose the song Mark needs to roll a 1 since a 2 is the smallest number already rolled.

Probability of rolling a 1 is:

P(1) = 1/6

What is the sum of three tenths plus thirty nine hundredths equals blank a thirty six hundredths b forty two hundredths c sixty nine hundredths d ninety six hundredths

Answers

Answer:c- sixty nine hundredths

Step-by-step explanation:

three tenths can be expressed in decimal as 3/10

thirty nine hundredths can be expressed in decimal as 39/100

Therefore the sum of three tenths plus thirty nine hundredths equals

3/10 +39/100

We first find the l.c.m of the two fractions equals 100 so we have 100 as the denominator

then 100 divided by 10  multiplied by 3 +100 divided by 100 multiplied by 39 as illustrated below gives the answer

3/10 +39/100

=30+39/100

=69/100= sixty nine hundredths

Please someone help I need to turn this in soon !!

Answers

Answer:

6

Step-by-step explanation:

18/3=6

can anyone help me with please ​

Answers

This is very confusing no

HELP ME WHATS THE VALUE OF X?

Answers

Answer:

Step-by-step explanation:

Total sum of degrees of a Triangle is 180 deg

Than: 8x-7 + x +7 + 2x + 15 = 180

11x + 15 = 180

x = (180-15) / 11  =15

Answer: 15

which of these ARE NOT equivalent?
I NEED HELPPP

Answers

Answer:

the first one I'm pretty sure

Step-by-step explanation:

I tried the other ones

5. If f (x) = -4x + 7. what is:
a. f(0)
b. f(-2)
c. Write part (a) & (b) as ordered pairs.

Answers

Answer:

f(0) = 7     f(-2) = 15    (7,15)

Step-by-step explanation:

f(0) = -4(0) + 7 = 7

f(-2) = -4(-2) + 7 = 15

(7,15)

What is GC? A.9 B.12 C.13 D.14

Answers

Answer:

D

Step-by-step explanation:

For the median GC, the distance from the vertex to the centroid G is twice as long as the distance from the centroid to the midpoint, that is

GC = 2 GD = 2 × 7 = 14 → D

help please? anyone?

Answers

Answer:

"so i need to find e missing side of each right triangle, side c is the hypotenuse!! a = 8.8ft, b= 9ft i have to round the answers to the nearest tenth if necessary "

Step-by-step explanation:

Sure! So remember that the Pythagorean theorem is a squared plus b squared = c squared.

= 8.8 squared + 9 squared = c squared

= 77.44 + 81 = c squared

[tex]\sqrt{158.44}[/tex] = c squared

c squared = (rounded) 12.6 ft

Work out size of Angle x

Answers

Answer:

106

Step-by-step explanation:

all 3 of the angles add up to 360

you already know one is 164 and one is a right angle so

164 + 90 = 254

360 - 254 = 106

What is -78.6 (-2.4)?
A. -188.64
B. -32.75
C. 32.75
D. 188.64

Answers

Answer:

the answer is A

Step-by-step explanation:

multiply the 2 numbers

Answer:

C. 32.75Is the answer!!

Step-by-step explanation:

8 points
3. A garden in the shape of a regular octagon has a perimeter of 144 feet.
How many square feet of planting space does it have?
3128.8 square feet
543.2 square feet
Ο Ο Ο
1564.4 square feet
782.2 square feet

Answers

i believe it is 543.2
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