Determine the scale factor of the dilation, if OA = 7 and OA' = 21.

Answers

Answer 1

Answer:

i think its 3

Step-by-step explanation:

21/7=3

The second figure OA' divided by first figure OA = 21/7=3


Related Questions

The Lakewood Wildcats won 5 of their first 8 games this year. There are 32 games in the season. How many games would you expect the Wildcats to win this season?

Answers

Answer:

x=20

Step-by-step explanation:

Rewrite the equation as  

x /32 = 5/ 8

Multiply both sides of the equation by 32

32 ⋅ x /32 = 32 ⋅ 5/8

Simplify both sides of the equation.

Cancel the common factor of  

32

Cancel the common factor.

32· x/32 · 5/8

Rewrite the expression.

x = 32 ⋅ 5/8

Simplify  

32⋅5/8

Cancel the common factor of  

8

Factor  8  out of  32

x = 8 ( 4 ) ⋅ 5/8

Cancel the common factor.

Rewrite the expression.

x = 4 ⋅ 5

Multiply  4  by  5

eishdjjsdjjxjxididhdjxix

Answers

42 (divide 256/6 and you get 42.6666 but you can only fill 42 completely, not 43 cuz one would be only 60% filled)
42 just divide 256 by 6

ted wants to buy a skateboard that is 59 dollars but is 30 percent off how much will he save

Answers

Answer:

Step-by-step explanation:

Ted will save $15.

Answer:

He will save $17.7.

Step-by-step explanation:

30% of 59= 41.3

59-41.3= 17.7

A bag contains 19 cards numbered 1 through 19. A card is randomly chosen from the bag. What is the probability that the card has a multiple of 3 on it

Answers

Answer: 6/19

Step-by-step explanation:

To solve this question, find out the number of multiples of 3 between the numbers 1 - 19.

The multiples of 3 there are:

= 3, 6, 9, 12, 15 and 18

There are 6 multiples.

Probability will therefore be:

= Number of multiples of 3/ Total number of cards

= 6/19

The area of a circle is 16π ft². What is the circumference, in feet? Express your answer in terms of \piπ.

Answers

The circumference when the area of a circle is 16π ft² is 8π feet.

How to calculate the area?

The area of a shape simply means the total space that is taken by the shape. It simply expresses the extent of the region on a particular plane as well as a curved surface.

From the information given the area of a circle is 16π ft² be we want to calculate the circumference, in feet. This will be Illustrated this:

Circumference of a circle = 2πr

Area of a circle = πr²

r = radius.

Therefore, based on the information regarding the area given, the radius will have to be calculated first.

Area = 16π

πr² = 16π

r² = 16π / π

r² = 16

r =✓16

r = 4

Radius = 4ft.

Therefore, the circumference will be:

= 2πr

= 2 × π × 4

= 8π

Circumference is 8π feet.

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the cos c of recycle Tin can varies directly as it's weight w in kilograms .if a junk shop pays 60 pesos per kilo of tin cans how many kilos should a junk shop pay an amount of 390 pesos​

Answers

Answer:

Step-by-step explanation:

c = 60w

390 = 60w

w = 6.5 kilograms

Solve: -8(x - 3y - 9)
Your answer

Answers

-8x + 24y + 72

————————-

Answer: −8x+24y+72

-8(x - 3y - 9)

=(-8)(x + -3y + -9)

=(−8)(x)+(−8)(−3y)+(−8)(−9)

=−8x+24y+72

Step-by-step explanation:

im not entirely sure but i hope this helps

:) have a nice day !!

When 20 large rooms are occupied, the total amount of money collected from the large room is $1800. When 10 large rooms and 21 small rooms are occupied, the hotel collects $2370. How much does the hotel charge for each small room?

PLEASE I NEED HELP ITS DUE TODAY!

Answers

It is 70
i cant explain it right now i have work to do so sorry:)
Large room price:
20L = 1800
L = 90

10L + 21S = 2370

Then substitute what you know L is and solve for S (small room cost)
10(90) + 21 S = 2370
900 + 21 S = 2370
21S = 1470
S = 70

If each of the two equations shown below are graphed in the same xy-coordinate plane, the graphs intersect. What is the x -coordinate of one of these points of intersection? y = 2x−9 y=−(x−1)2−7

Answers

Answer:

The graphs do intersect at two values of x;

x = 1

and

x = -1

Step-by-step explanation:

We have the two equations:

y = 2*x - 9

y = -(x - 1)^2 - 7

We know that when we graph these equations, the graphs do intersect.

if the graphs intersect, then we must have at least one point (x, y) that is a solution for both equations.

because in this point y is the same for both equations, then we can write:

2*x - 9 = y = -(x - 1)^2 - 7

this leads to the equation:

2*x - 9 = -(x - 1)^2 - 7

now we can solve this for x.

2*x - 9 + (x - 1)^2 + 7 = 0

2*x + x^2 - 2*x + 1 + 7 - 9 = 0

x^2 - 1 = 0

x^2 = 1

x = √1

Then we have two possible solutions:

x = 1, and x = -1

A driver descends -15 after 1 minute, -30 feet after 2 minutes and -45 after 3 minutes? If the driver keeps descending at this rate, what is their position after 12 minutes

Answers

Answer:

I think it's -180

Step-by-step explanation:

He keeps descending -15 feet every 1 minute

1 x -15 = -15

2 x -15 = -30

12 x -15 = -180

jane cycled 32km, correct to the nearest km.

write the least distance and the greatest distance Jane could have cycled.

least:

greatest:

Answers

Answer:

31.5

and

32,4

Step-by-step explanation:

Consider the relationship in special right triangles to determine the tangent ratio for a 45 degree angle. Give your answer, as necessary, to the nearest thousandth place (three decimal place values).

Answers

Answer:

1

Step-by-step explanation:

The tangent of a angle is opposite side/ adjacent side

In a rights triangle with a 45° angle we have a special 45-45-90 triangle.

The legs of the triangle are congruent and are the opposite and adjacent sides of the 45° angle.  Therefore, the ratio of those two sides is 1.

Therefore, the tangent of 45° = 1

How many tons are equal to 36,000 pounds

Answers

Answer:

18

Step-by-step explanation:

18 US tons are equal to 36,000 pounds

2. Determine the value of each variable for parallelogram INDY has diagonals that intersec at P.1P=3x DP = 6x - 2 NP = 3y and YP=7x-2,

Answers

Answer:

x = 2/3 and y = 8/9

Step-by-step explanation:

If a parallelogram INDY has diagonals that intersects at P, then O bisects ID and YN

Hence IP = PD and NP = YP

Given

IP=3x

DP = 6x - 2

NP = 3y and

YP=7x-2,

Substitute

3x = 6x-2

3x-6x = -2

-3x = -2

x = 2/3

x = 0.67

Also NP = YP

3y = 7x-2

3y = 7(2/3) - 2

3y = 14/3 - 2

3y = 14-6/3

3y = 8/3

9y = 8

y = 8/9

Hence x = 2/3 and y = 8/9

A guitar string vibrates back and forth 88 times in 1 minute. Round your answers to the following questions to the nearest tenth.

How many times does it vibrate per second?

Answers

Answer:

1.5

Step-by-step explanation:

divide 88÷60=1.4666667

simplify to nearest 10th

A football team with a probability of 0.8 of winning a game plays 50 games in a season. What is the probability
of the team losing a game?

Answers

The probability of losing a game is 0.2

I showed this to my sister and she is a math teacher and she said this is 100 percent right

The length of a basketball court is twice its width. The perimeter is 150 feet. Find the length and width of the basketball court. On your worksheet, solve the question and write your answer below. What is length of the basketball court? What is the width of the basketball court?

Answers

Answer: W=25 and L=50

Step-by-step explanation: I first started out with 50, because 50 is half of 100. 50 divided by 2 equals twenty five. Now, I moved on to 100. 100 divided by 2 equals 50. 25+25+50+50=150.

Answer:

The width of the basketball court is 25 feet and the length is 50 feet

Step-by-step explanation:

Equations:

Let's make:

x = width of the basketball court

2x = length of the basketball court

The perimeter of the court is twice the width plus twice the length:

P = 2x + 2(2x)

P = 2x + 4x = 6x

It's known to be 150 feet, thus:

6x = 150

Dividing by 6:

x = 150/6

x = 25 feet

2x = 50 feet

The width of the basketball court is 25 feet and the length is 50 feet

i need help with number 5

Answers

Answer:

the graph is not exponential because exponential is represented as a form of exponenti growth or exponential decay. Exponential function has a slight curve rather than a straight line

The person above me is right^^

solve for N
what's the rule

Answers

Answer:

n = 8

Step-by-step explanation:

The rule for this table is multiply x by 4 to get y. To solve for n, divide y (32) by 4 to get x (8).

Hope it helps!

True or False

calculator found in cp is better to use than an ordinary calculator in computing the number of seedling needed
paki explain po.​

Answers

Answer:

for saken it is better to use ordinary calculator than cp because they have a big difference. That's all I can say

Find the slope (rate of change) from the table. Simplify if necessary.
X
1
2
3
4
у
-3
-9
-21
-15​

Answers

Answer:

i think it would be 2 because its in the middle of the slope and it would make scence

Step-by-step explanation:

Prove that with any natural number n (5n-4)^2-(2n+11)^2 divides by 21

Answers

Answer:

let natural no be 1

(5.1-4)^2-(2.1+11)^2/21

25-16-4-121/21

-5.52

Step-by-step explanation:

plz maje me brainliest

Ryan ordered some books online and spent a total of . Each book cost and he paid a total of for shipping. How many books did he buy?

Answers

Answer: 12 books

Step-by-step explanation:

First you need to remove the cost of shipping from the total amount:

= 75 - 3

= $72

The above is the total amount spent on the books without shipping.

If each book cost $6, the total number of books bought is:

= 72 / 6

= 12 books

3) Select ALL the expressions that are equivalent to 6x + 1 - 4(2x-1).

A) 6X + 1 - 8X - 4

B) 6X + 1 - 8X + 4

C) -2X + 5

D) 6X + 1 + -8X + 4

Answers

The ones equivalent to that expression are B and C

Bryan earns $5.00 per lawn mowed and $5.00 per car washed. Let m be the number of lawns mowed and let c be the number of cars washed. Select all the expressions that could represent the total earned, E in dollars, by Bryan.

Answers

Answer:

where.... are the expressions?

Step-by-step explanation:

Answer:

The most logical choice for the expression would be 5m + 5c = E

But it could also be 5(m + c) = E

what is 3x(2-4x)
pls i need help

Answers

Answer:

6x−12x^2

Step-by-step explanation:

Answer:

Evaluated it is 6x-12x^2

Step-by-step explanation:

3x*2=6x

add minus sign

3x*4x=12x

Since 2 x add 2 as an exponent!

Simplify the expression:
-5 – 3 (4x – 9)

Answers

Answer:

Step-by-step explanation:

lets remove the paranthesis and multiply

-5-3(4x-9)=

=-5-12x+27=

=-12x+22

-5-12x + 27 -> -12x + 22

Solve for x. Leave your answer in simplest radical form.
SOMEONE HELP ME PLEASE I NEED IT, it needs to be in radical form

Answers

Step-by-step explanation:

step 1. let's call the line in the middle y.

step 2. y = sqrt(5^2 + 7^2) = sqrt(74). pythagorean theorem.

step 3. x^2 + y^2 =100 (pythagorean theorem))

step 4. x^2 + (sqrt(74))^2 = 100.

step 5. x^2 = 100 - 74

step 6. x^2 = 26

step 7. x = sqrt(26). note: sqrt is the square root.

The value of the x is [tex]\sqrt{26}[/tex].

To understand more, check below explanation.

Pythagoras theorem :

Apply Pythagoras theorem in right side triangle,

            Hypotenuse[tex]=\sqrt{5^{2}+7^{2} } =\sqrt{25+49}=\sqrt{74}[/tex]

Now apply Pythagoras theorem in the left side triangle,

              [tex]Hypotenus^{2} +x^{2} =10^{2} \\\\(\sqrt{74} )^{2} +x^{2} =100\\\\x^{2} =100-74=26\\\\x=\sqrt{26}[/tex]

Hence, the value of the x is [tex]\sqrt{26}[/tex].

Learn more about the Pythagoras theorem  here:

https://brainly.com/question/21332040

A cheer squad of 8 cheerleaders raised $317.30. They need $622.42 to
pay for the Homecoming dance. If each cheerleader raises the same
amount, how much more does each cheerleader need to raise?

Answers

Answer:

Each cheerleader needs to raise 38.14 more

Step-by-step explanation:

Answer:

They each need to raise $38.14.

Step-by-step explanation:

For this problem, I started off by subtracting 317.30 from 622.42.

(622.42-317.30) This gave us 305.12.

I did this, because we are trying to find the amount of money the cheerleaders have left to make.

Next, we will divide the difference of this equation (305.12) by 8.

We did this because there are 8 cheerleaders, and they all made the same amount of money.

This leaves us with an answer of:

Each cheerleader has exactly $38.14 left to make.

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

x = ___

Answers

The value of x from the given diagram using the similarity theorem of a triangle is 7

In order to get the value of x from the given triangle, we will use the similarity theorem of a triangle.

From the given triangle, the following equation is true;

5/40 = 3/2x + 10

Cross mutiply

5(2x + 10) = 3(40)

10x + 50 = 120

10x = 120 - 50

10x = 70

x = 7

Hence the value of x from the given diagram is 7

Learn more here: https://brainly.com/question/23961310

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