Mathematics College

A figure has been dilated from center O by a scale factor of r = 3/10 scale factor would magnify the dilated figure back to the original size?​

Answers

Answer 1

Answer: The new scale factor needs to be 10/3

Explanation:

Consider a line segment that is 10 units long. Apply the scale factor 3/10 to it, and now it's 3 units long because (3/10)*10 = 3.

To get it back to 10 units, we multiply by the scale factor 10/3 which is the reciprocal of the original scale factor. Note that (3/10)*(10/3) = 1. Those two scale factors multiply to 1 to indicate no change has been made overall.

Related Questions

PLEASE HELP I KEEP GETTING IT WRONG

Answers

Answer:

[tex]-2\dfrac{3}{5};\dfrac{-9}{4};1.2;\dfrac{7}{4}[/tex]

Step-by-step explanation:

[tex]1.2 , -2\dfrac{3}{5},\dfrac{-9}{4},\dfrac{7}{4}\\\\1.2 ; -2.6 ; -2.25 ; 1.75\\Least \ to \ greatest\\\\-2.6 ; -2.25 ; 1.2 ; 1.75\\\\-2\dfrac{3}{5};\dfrac{-9}{4};1.2;\dfrac{7}{4}[/tex]

Question:
w/2 - 6 = -10
Question:
3x + 3x -2x =12

Answers

Solution:

[tex]1. \frac{w}{2} - 6 = - 10 \\ = > \frac{w}{2} = - 10 + 6 \\ = > \frac{w}{2} = - 4 \\ = > w = - 4 \times 2 \\ = > w = - 8[/tex]

[tex]2. \: \: 3x + 3x - 2x = 12 \\ = > 4x = 12 \\ = > x = \frac{12}{4} \\ = > x = 3[/tex]

Answers:

1. w = -8

2. x = 3

w = -8
x = 3
Just trust me

An appliance store decreases the price of a 19 inch television set 21% to a sale price of $475.19. What was the original price

Answers

Answer:

The original price of the TV was $609.51

Step-by-step explanation:

100% - 21% = 79%

Now the question were really asking here is "475.19 is 79% of what?"

475.19 = 0.79 * x

To get x we must take 475.19 and divide by 0.79, which is about 601.51

The original price of the TV was $609.51

Please mark brainliest if possible, have a nice day!

mentaly multiply 9 by 13

Answers

Answer:

117

Step-by-step explanation:

10*9=90

3*9=27

90+27=117

This is a easy method to do multipication in mind

How to simplify 5 to the 5th power and 5 to the 8th power

Answers

Answer:

(1/3)^3

Step-by-step explanation:

5^5-8 = 5^-3 (5 to the -3)

= 1/5^3

Decrease 210000 by 40%

Answers

Answer: 99.981% decrease

Step-by-step explanation:

what percent of the bottle of appple juice is water ?

Answers

Answer:

Apple juice is 88% water and 11% carbohydrates

Step-by-step explanation:

pls mark me brainliest and i hope this helped :)))

Answer:

10%

Step-by-step explanation:

apples are the potato that grows on trees and potato

plz help with these 2 thank you

Answers

Answer:

1 find the value of x graph. i thinks x is 5-3

2 cant help you there.

Step-by-step explanation:

9514 1404 393

Answer:

x = 9/2x = 5

Step-by-step explanation:

1. Substitute for k(x) and solve.

  k(x) = 6x -12

  15 = 6x -12 . . . . substitute for k(x)

  27 = 6x . . . . . . add 12

  27/6 = x = 9/2 = 4 1/2 . . . . . divide by 6

__

2. Find f(x) = 7 on the vertical scale. Follow that horizontal line over to the graph. Follow the vertical line at that intersection down to the x-axis. It will be halfway between the lines marked 4 and 6. That is, the x-value is 5.

  f(x) = 7 = f(5)

  x = 5

Plsssssss helppppp, this is geometry

Answers

make a right angle, and use your compass to add an additional 45 degrees

Least to greatest 1/4, -3/7, -4/5, 2/3

Answers

-4/5,-3/7,1/4,2/3

Have a nice day!! :)

Answer: -4/5, -3/7, 1/4, 2/3

Step-by-step explanation:

you make a common denominator and out them in order

The equation of a proportional relationship is of the form y=kx, where k is a positive number, and the graph is a line through (0,0). What would the graph look like if k were a negative number?

Answers

9514 1404 393

Answer:

  see attached

Step-by-step explanation:

The graph of a line with negative slope goes down to the right. The line would still go through the origin. An example is attached.

How many total hours does a grocery clerk work if he works 2 hours and 15 minutes in the morning and 4 hours and 15 minutes in the afternoon.

Answers

Answer:

6 hours 30 minutes

Step-by-step explanation:

Mom is planting a rose garden in the backyard. The scale drawing shows the garden. What is the
actual width and length of the rose garden?
8.5 in
2.5 in
Scale: 0.5 in = 2 ft

Answers

boiii is coming out to get my mom and

1,000 is 1/10 of what??

Answers

10000, 1,000*10= 10000

Seven values are 3, 3, 3, 4, 5, 8 and x.
The mean of these seven values is equal to twice their mode.
Calculate the value of x.

Answers

The value of x is going to be 100.
X=6 should be the answer. The mode=3, and 3x2=6.


There are nine hundred ninety students at a school. If each classroom holds thirty students, how many classrooms are needed at the school

Answers

Total students=990Each classroom holds=30

Total classrooms are required:-

[tex]\\ \sf\longmapsto \dfrac{990}{30}[/tex]

[tex]\\ \sf\longmapsto 33[/tex]

How many kilometers per minute 26.5 miles in 2.65 hours is

Answers

Answer:

Step-by-step explanation:2.25 miles per hour = 3.621 kilometers per hour

Formula: multiply the value in miles per hour by the conversion factor '1.609344'.

So, 2.25 miles per hour = 2.25 × 1.609344 = 3.621024 kilometers per hour.

What is the take home percent of the gross pay for these details? Net Pay $2,764.93 Gross Pay $4,105 Round to the nearest percent.


answers


35% 42% 58% 67%​

Answers

your answer is 67% because you divide net pay by the gross pay and then multiply that number by 100 to get take home percentage

Which statement is true?

A) A trapezoid can never have a right angle.
B) A parallelogram can never have a right angle. C) A rhombus is a type of trapezoid
D) A square is a type of parallelogram.​

Answers

Answer:

C

Step-by-step explanation:

A rhombus is a type of trapezoid.

D is the answer to the question

At the fast food restaurant, an order of fries costs $1.09 and a drink costs $1.18. How much would it cost to get 3 orders of fries and 2 drinks? How much would it cost to get ff orders of fries and d drinks?

Answers

Answer:

5.63 Happy to Help :)

Step-by-step explanation:



Challenge You buy 3.18 pounds of apples, 1.25 pounds of peaches, and 1.76 pounds of pears.
What is your total bill

Answers

Answer:

6.19

Step-by-step explanation:

I hope this helps you

A store is selling two mixtures of nuts in 20-ounce bags. The first mixture has 13
ounces of peanuts combined with five ounces of cashews, and costs $6.00. The
second mixture has five ounces of peanuts and 15 ounces of cashews, and costs
$8.00. How much does one ounce of peanuts and one ounce of cashews cost?

Answers

8 dollarsss is the answer?

how many total ounces of chicken

Answers

Answer:

An average chicken breast weighs 174 g, or about 6 ounces (oz). But sizes vary from smaller cuts at around 4 oz, to larger ones at 8 to 10 oz. There's no right or wrong choice here. It really depends on what you're cooking and how much chicken you want.

Answer:

Step-by-step explanation:

a warehouse holds 460 boxes. They ship out 65 boxes each week. After how many weeks will the warehouse have less than 100 boxes remaining?

Answers

It should take 6 weeks until the warehouse has less than 100 boxes remaining

Start playing around with multiplication or subtraction. Multiplication for example, 4 (weeks) x 65 (boxes each week) = 260 460-260=200 so not enough…subtraction way 460-65=395, 395-65=330, etc. So with multiplication 6x65=390, 460-390=70. It will take 6 weeks before the warehouse has less than 100 boxes remaining.

24 inches to 4 feet in simplest form

Answers

Answer:

[tex]\dfrac{1}{2}[/tex]

Answer:

1/2 is the answer, i hope it helps

Carla reads 36 pages in 3 hours. At this
rate, how long will it take Carla to read a
book with 180 pages?

Answers

180/36 is 5 so 5 times 3=15

Answer:

It will take 15 hours to read a book with 180 pages

Step-by-step explanation:

First, let's set up a ratio to find how many pages she reads per hour:

36:3 = 12:1

Now we can set up fractions to solve:

[tex]\frac{12}{1} =\frac{180}{x}[/tex]

Cross multiply:

[tex]12x=180[/tex]

Divide each side by 12:

[tex]x=15[/tex]

Gray Co. issued $51,000 of 60% bonds at 103 1/2

Answers

well 60% of 51,000 is 30,600 i wasn’t sure what the question was tho lol

A isotope has a Half life of 1000 years. If you start with 1 kilogram of this isotope how much will remain after 400 years? 4000 years?

Answers

Answer:If you begin with a 1 gram sample of the isotope, at the end of 1000 years you would have. 1 gram x (12) = 12 gram would remain.

Step-by-step explanation:

What number has 6 hundred thousands, 9 ten thousands, 7 thousands, 6 hundreds, 5 tens, and 2 ones?

Answers

Answer:

697,652

Step-by-step explanation:

Hope this helps! :0

Answer:

697,652

600,000 + 90,000 + 7,000 + 600 + 50 +2 = 697,652

Thats how I sometimes look at it.

Suppose A={−2,1,3,6,14}, B={−4,2,1,6,9}, and C={−2,6,9,12}. What is (A∩B)∪C?

Answers

Answer:

(A∩B)∪C = 1, 6, 12

Step-by-step explanation:

Any values A and B share with along with any unique values of C

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