The smaller triangle is dilated to create the larger triangle. The center
of dilation is plotted, but not labeled.

The Smaller Triangle Is Dilated To Create The Larger Triangle. The Centerof Dilation Is Plotted, But

Answers

Answer 1

Answer:

Point D is the point of dilation.

Step-by-step explanation:

If the smaller triangle A'B'C' is dilated to form a larger triangle ABC by the dilation about point D,

Ratio of the DA and DA' will be equal to the ratio of DB and DB'.

Length of DA = 3 units

Length of DA' = 1 unit

Coordinates of D → (3, 0)

Coordinates of B → (9, 3)

Coordinates of B' → (5, 1)

Use the formula of distance between the two points to find find the length of DB and DB'

Length of DB = [tex]\sqrt{(x_2-x_1)^2+(y_2-y_1)^2}=\sqrt{(3-0)^2+(9-3)^2}[/tex]

                                                                 [tex]=\sqrt{45}[/tex]

                                                                 [tex]=3\sqrt{5}[/tex]

Length of DB' = [tex]\sqrt{(5-3)^2+(1-0)^2}[/tex]

                       [tex]=\sqrt{5}[/tex]

Ratio of DB and DB' = [tex]\frac{3\sqrt{5} }{\sqrt{5} } =3:1[/tex]

Ratio of DA and DA' = 3 : 1

Since, [tex]\frac{DA}{DA'}=\frac{DB}{DB'}[/tex]

Therefore, smaller triangle is dilated by a scale factor of 3 to form the bigger triangle about the point D.

The Smaller Triangle Is Dilated To Create The Larger Triangle. The Centerof Dilation Is Plotted, But

Related Questions

Find the value of the unknown angle x.


The diagram is not drawn to scale.

Please help. Thank you.

Answers

Answer:

Step-by-step explanation:

interior angle =(n-2)180

=(4-2)*180

=360

360=164+71+24+x

360=260+x

x=360-260

x=100

Answer:

Step-by-step explanation:

Since angles in quadrilateral (4-sided shape) add up to 360 degrees

therefore,

360 = 164 + 71 + 25 + x

360 = 260 + x

subtract 260 from both sides

360-260 = 260-260 + x

100 = x

PLEASE HELP ME ITS DUE TODAY I WILL MARK YOU BRAINLIST
5. Mia is stretching out before dance class. She sometimes places a band around her calves to get an extra stretch.
Part 1: Sketch and label the triangle that illustrates the scenario and givens required for the proof. (3 points)
Part 2: Use the spaces provided below to complete a formal proof. (5 points)

Answers

Answer:

It's Arrives

Step-by-step explanation:

What is the exact length of EC?

A. 4√29/7 Feet
B.√164 Feet
C. 4√5 Feet
D. 2√41 Feet

Answers

Answer:

C. [tex]4\sqrt{5}[/tex] feet

Step-by-step explanation:

We have similar triangles:

ΔADC ~ ΔBEC

Find segment BC using similarity and ratios:

AD/ BE = AC / BC28 / 8 = (10 + BC)/ BC28BC = 8(10 + BC)28BC = 8BC + 8020BC = 80BC = 4

Find EC using Pythagorean:

[tex]EC = \sqrt{BE^2+BC^2}=\sqrt{8^2+4^2}=\sqrt{64+16}=\sqrt{80}=4\sqrt{5}[/tex]

Correct choice is C

12 batteries cost $25 = ? dollars per battery
$2
$2.08
$2.50
$12.25

Answers

Answer:

$2.08 per battery

Step-by-step explanation:

What is the missing angle?

Answers

Check the picture below.

The volume of a cylinder is approximately 942 cubic inches. The height of the cylinder is 12 inches. Which is the best approximation for the radius of the cylinder? 4 inches, 6 inches, 7 inches, 5 inches

Answers

Answer: 5 inches

Step-by-step explanation:

The volume of a cylinder is equal to pi*radius^2*height.

We can replace the height with 12 inches and the volume with 942 cubic inches.

Therefore, 942 in^3 = pi*radius^2*12 inches

We can divide both sides by 12:

pi*radius^2 = 78.5 inches^2

We can divide both sides by pi:

Radius^2 = About 24.99 inches^2

We can square both sides:

Radius approximately equals 5 inches.

Find the equation of the line shown

Answers

Answer:

y=x+1

Step-by-step explanation:

The slope of the equation is 1, you can try the rise over run method or picking 2 points and subtracting them for example 2,3 and 3,4

2,3-3-4=1,1. The y-intercept is 1 because that is the point where the line crosses the y axis.

Answer:

Slope intercept form:

y = mx + b

Where 'y' is the independent variable and 'x' is the dependent variable.

'm' represents the slope(rise/run), and 'b' represents the y-intercept(where the line meets the y-axis).

If we look at this graph, we can see the line meets the y-axis at 1. So 1, will be our y - intercept.

We can also see, that from the point 1, it rises 1 and goes over 1. So 1, will be our slope as well.

To double check this, we select two fixed points on this graph and subtract the y-coordinates from each other and divide the result of that by the x-coordinates subtracted from each other.

y2(second y-coordinate) - y1(first y-coordinate)

_____________________________________

x2(second x-coordinate) - x1(first x-coordinate)

We pick the two points to be, (1,2) and (2,3).

 3 - 2              1

______ = _______, which is equal to 1, so 1 is the slope.

 2 - 1               1

Now we insert these values into our slope intercept form equation:-

y = mx + b

y = 1x + 1 or y = x + 1.

Where 1 is the slope, and the y-intercept is 1.

Drake’s monthly outlay include a $70 phone bill and a $120 car assuming he makes $400 a month, how much does he have to spend after paying his bills?

Answers

Assuming he makes $400 a month, how much does he have. ... (5 minutes) Drake's monthly outlays include a $70 phone bill and a $120 car payment.

The solution is, $210 does he have to spend after paying his bills.

What is Subtraction?

Subtraction is the process of taking away a number from another. It is a primary arithmetic operation that is denoted by a subtraction symbol (-) and is the method of calculating the difference between two numbers.

here, we have,

given that,

Drake’s monthly outlay include a $70 phone bill and a $120 car assuming he makes $400 a month,

i.e. we get,

Drake’s monthly outlay include a $70 phone bill and a $120 car.

so, total spend = $ 120 + 70

                         = $190

now, we have to find how much does he have to spend after paying his bills.

so, we have to subtract 190 from 400

i.e. 400 - 190

=210

Hence, $210 does he have to spend after paying his bills.

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Use the protractor in the picture to find the measure of angles. THANK YOU!!!

Answers

Answer:

2b) KOM = 143°

c) as the value of a straight line is 180°, and the angle LOK is 37°, subtract 180° with 37° and you will get the value for KOM.

Step-by-step explanation:

2b) subtract 180° with 37°

c) it is just using logical and mathematical sense from the question 2b

Andrew's monthly salary is $3,250, plus he carns a 1.4% commission on his sales cach month. Andrew's
sales for November were $51,000. What were his total earnings for November?

Answers

$3964
1.4% of 51000 = 714
714(commission) + 3250(salary) = 3964

Connor is playing a card game called At Face Value. At the end of each round, players earn positive points for their remaining number cards but negative points for their face cards. At the end of round 1, Connor earns
–5 points. At the end of round 2, he earns –6 points. What is Connor's score now?

Answers

Adding the score of each round, Connor's current score is of -11 points.

How to find the sum of two negative numbers?

To find the sum of two negative numbers, we keep the signal and add numbers.

For each round, Connor's scores are given as follows:

Round 1: -5 points.Round 2: -6 points.

The combined score is the sum of each score, hence:

C = -5 + (-6) = -5 - 6 = -(5 + 6) = -11.

Connor's current score is of -11 points.

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what is the the quotient of 3/8 and 4/9

Answers

Answer:

3/8 = 0

4/9= 0

Step-by-step explanation:

The quotient is 0 because the numerator is less than the denominator.

Answer:

27/32 is the answer

Step-by-step explanation:

Did the math, did the recipicol of 4/9 then multiplied.

In 2015,there were about 22 million teenagers (aged 13-17) in the United States. They each sent an average of 900 text messages per month. About how many text messages did all of the teenagers in the United States send each month? Express your answer using scientific notation

Answers

The amount of text messages sent by teenagers in the United States in 2015 is about 1.98 x [tex]10^{10}[/tex]

What is scientific notation?

Scientific notation is used in expressing large numbers in smaller numbers. It is used to transform large numbers into smaller number. In order to write a number in scientific notation, the number is written as a decimal number, between 1 and 10 and multiplied by a power of 10.

2.2 x 10^7 + 9 x 10^2 = 1.98 x 10^10

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Work out the length QR.
Give your answer correct to 3 significant figures.

Total marks: 5

Answers

Answer:

The length of QR is 29.9 cm

Step-by-step explanation:

Let us revise the sine and cosine rules

In triangle ABC:

[tex]\frac{AB}{sin(C)}=\frac{BC}{sin(A)}=\frac{AC}{sin(B)}[/tex] ⇒ sine rule

(AC)² = (AB)² + (BC)² - 2(AB)(BC)cos(∠B) ⇒ cosine rule

Let us use these rules to solve the question

In Δ PQS

∵ [tex]\frac{PS}{sin(Q)}=\frac{QS}{sin(P)}[/tex]

∵ PS = 11.7 cm

∵ m∠P = 95°, m∠Q = 28°

→ Substitute them in the rule above

∴ [tex]\frac{11.7}{sin(28)}=\frac{QS}{sin(95)}[/tex]

→ By using cross multiplication

∴ QS × sin(28) = 11.7 × sin(95)

→ Divide both sides by sin(28) to find QS

QS = 24.82680292 cm

Now let us use the cosine rule to find QR

In Δ QSR

∵ (QR)² = (QS)² + (RS)² - 2(QS)(RS)cos(∠QSR)

∵ RS = 10.2 cm

∵ m∠QSR = 110°

→ Substitute these values in the rule above

∴ (QR)² = (24.82680292)² + (10.2)² - 2(24.82680292)(10.2)cos(110)

∴ (QR)² = 893.631984

→ Take √  for both sides

∴ QR = 29.89367799

→ Round it to 3 significant figures

QR = 29.9 cm

HOW MANY BURGERS CAN BE MADE FROM 1,000,000,000 COWS ?
YOU CAN GET 1,200 BURGERS FROM EACH COW .
please do the work im trying to prove something

Answers

Answer:

1200000000000

Step-by-step explanation:

multiply them together

brainliest appreciated

The area of the parallelogram is 50 square kilometers. What is the parallelogram's base, b?

Answers

Answer:

✓50 km

Step-by-step explanation:

Here, Area of parallelogram = base x height

so, at least two data should be given,

hence, let us consider base = height in this case.

Here it becomes,

Area of parallelogram = base²

50 km² = base²

Now, providing square root on both sides,

we get,

✓50 km = base

Factor the perfect-square trinomial in y = (x2 + 2x + 1) − 1− 1.
y = (x +
2
)2 − 1 −1

Answers

Answer:

is one

Step-by-step explanation:

did it on test so pog got it right

Answer:

2 for simplify part

Step-by-step explanation:

on edge

Total consumption of fruit juice in a particular country in 2006 was about 1.85 billion gallons. The population of that country in 2006 was 300 million. What was the average number of gallons of fruit juice consumed per person in the country in​ 2006?

Answers

Given :

Population of country in 2006 , P = 300 million.

Consumption of fruit juice in 2006 by while population, C = 1.85 billion.

To Find :

The average number of gallons of fruit juice consumed per person in the country in​ 2006.

Solution :

We know, 1 billion = 1000 million.

C = 1.85 billion = 1850 million.

Now, average umber of gallons of fruit juice consumed per person in the country in​ 2006 is :

[tex]c =\dfrac{C}{P}\\\\c=\dfrac{1850}{300}\ gallons/person\\\\c=6.17 \ gallons/person[/tex]

Hence, this is the required solution.

Determine whether the sequence is arithmetic, geometric, or neither: 20,17,14,11

Answers

Answer: Arithmetic

==================================================

Explanation:

Add -3 to each term to get the next term. This is the same as subtracting 3 from each term. In this case, the common difference is d = -3.

The first term is a = 20

---------

The nth term formula for the arithmetic sequence is

a(n) = a+d(n-1)

a(n) = 20+(-3)(n-1)

a(n) = 20-3n+3

a(n) = -3n+23

If we plug in n = 1, we would get a(n) = 20. Plug in n = 2 to get a(n) = 17. And so on. This helps confirm we have the correct nth term formula.

What is/are the variable(s) in this expression: 6a-7b+8

Answers

Answer:

a , b

Step-by-step explanation:

ans this are the variables

Please answer and say what a perfect root is pls i didnt get time to study and this is for 15 points

Answers

Answer:

81 is a perfect square

18 isn't a perfect square

50 isn't a perfect square

32 isn't a perfect square

Step-by-step explanation:

Numbers whose square roots are whole numbers, or more accurately positive integers are called perfect root

Example 7×7=49

What is an equation of the line that passes through the points (-6,-4) and
(-4,0)?

Answers

Answer:

y = 2x + 8

Step-by-step explanation:

the equation of a line in slope-intercept form is.

y = mx+b

where m is the slope and b the y-intercept

to calculate m use the gradient formula

m = (y2−y1 ) / (x2−x1)

let (x1,y1)=(-6,-4) and (x2,y2)=(-4,0)

m = (0 - (-4)) / (-4 - (-6) = 2

y = 2x+b←is the partial equation

to find b substitute either of the 2 given points

into the partial equation

using (-6, -4) then

-4 = -12+b⇒b=8

y = 2x + 8←is the equation of line

Anthony rides his bicycle at a speed of 5 km per hour how far will it travel If he rides for 6 hours​

Answers

Answer:

30 km

Step-by-step explanation:

because 5km x 6hrs = 30 km sorry if i'm wrong that's just how my brain works.

Answer:

30

Step-by-step explanation:

5x6=30

it says 5 per hour so 5x6

Find find the area of the triangle below

Answers

Answer:

the answer is: 70

Step-by-step explanation:

[tex]s \: = \: \frac{ah}{2} [/tex]

[tex]s \: = \: \frac{70 \: \times \: 20}{2} = \: 70[/tex]

What is the value of the expression below? (9-3)+4(6-7) O-7 O-1 O7 20​

Answers

Answer:20

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

cual es el doble de un numero

Answers

Answer:

Dos veces más. Ejemplo: 4 es el doble de 2

Step-by-step explanation:

Which of the following points is between 2 and -3 on the number line?
-4 3 -2 -5

Answers

Answer:

-2

Step-by-step explanation:

-5  -4  -3  -2  -1  0  1  2 3  4  5

Pedro jogs 1.45 kilometers on Monday. he jogs 0.5 kilometer more on Tuesday than on Monday. how far does Pedro jog during both days?

Answers

Answer:

3.4 kilometers on both days

Step-by-step explanation:

[tex]1.45+0.5=1.95[/tex]

[tex]1.45+1.95=3.4[/tex]

A bag contains 1 blue, 2 green, and 2 red marbles. You choose a marble with one hand and then a second marble with the other hand. What is the probability that you will first choose a red marble followed by a green marble?

Answers

The probability that you will first choose a red marble followed by a green marble is 20%.

Probabilities

Given that a bag contains 1 blue, 2 green, and 2 red marbles, and you choose a marble with one hand and then a second marble with the other hand, to determine what is the probability that you will first choose a red marble followed by to green marble the following calculation must be made:

1 + 2 + 2 = 52/5 x 2/4 = X0.4 x 0.5 = X0.2 =X0.2 x 100 = 20

Therefore, the probability that you will first choose a red marble followed by a green marble is 20%.

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The probability of choosing a red marble is 2/5 while the probability of choosing a green marble after a red marble is 1/2

Data;

blue = 1green = 2red = 2

Probability without replacement

To solve this problem, we have to do probability without replacement.

The total number of marbles in the bag is

[tex]1 + 2 + 2 = 5[/tex]

The probability of choosing a red marble is

Number of read marbles = 2

probability of choosing a red marble is

[tex]P = \frac{2}{5}[/tex]

The probability of choosing a green marble after a red marble is

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

The probability of choosing a red marble is 2/5 while the probability of choosing a green marble after a red marble is 1/2

Learn more on probability here;

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The soccer​ team's shirts have arrived in a big​ box, and people just start grabbing​ them, looking for the right size. The box contains 6 ​medium, 10 ​large, and 10 ​extra-large shirts. A player wants a medium for himself and one for his sister. Find the probability of each event described. Complete parts a through d below.

Answers

a) Probability of getting a medium shirt for the player ≈ 0.0385

b) Probability of getting a medium shirt for the player's sister ≈ 0.0385

c) Probability of getting a medium shirt for both the player and his sister ≈ 0.00148225

d) Probability of getting either a medium, large, or extra-large shirt ≈ 0.0385.

Here, we have,

To find the probability of each event, we first need to determine the total number of shirts in the box and the number of shirts that satisfy each event.

a) Probability of getting a medium shirt for the player:

Total number of medium shirts = 6

Number of medium shirts needed for the player = 1

Probability = (Number of medium shirts needed) / (Total number of shirts) = 1 / (6 + 10 + 10) = 1 / 26 ≈ 0.0385

b) Probability of getting a medium shirt for the player's sister:

Total number of medium shirts = 6

Number of medium shirts needed for the player's sister = 1

Probability = (Number of medium shirts needed) / (Total number of shirts) = 1 / (6 + 10 + 10) = 1 / 26 ≈ 0.0385

c) Probability of getting a medium shirt for both the player and his sister:

Since the two events are independent (one person getting a medium shirt does not affect the other's chance of getting a medium shirt), we can multiply the probabilities of each event:

Probability = Probability of player getting a medium shirt * Probability of player's sister getting a medium shirt ≈ 0.0385 * 0.0385 ≈ 0.00148225

d) Probability of getting either a medium, large, or extra-large shirt:

Total number of medium, large, and extra-large shirts = 6 + 10 + 10 = 26

Number of shirts needed = 1 (for the player or his sister)

Probability = (Number of shirts needed) / (Total number of shirts) = 1 / 26 ≈ 0.0385

To summarize:

a) Probability of getting a medium shirt for the player ≈ 0.0385

b) Probability of getting a medium shirt for the player's sister ≈ 0.0385

c) Probability of getting a medium shirt for both the player and his sister ≈ 0.00148225

d) Probability of getting either a medium, large, or extra-large shirt ≈ 0.0385.

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