Mathematics High School

100 POINTS!!!

A triangle with vertices at A(20, -30), B(10,-15), and C(5,-20) has been dilated with a center of dilation at the origin.
The image of B, point B', has the coordinates (2, -3). What is the scale factor of the dilation?
05
5
10

100 POINTS!!!A Triangle With Vertices At A(20, -30), B(10,-15), And C(5,-20) Has Been Dilated With A

Answers

Answer 1

Answer:

5

Step-by-step explanation:

Related Questions

15y - 2y + 29 = 5y -27​

Answers

Answer:

y=-7

Step-by-step explanation:

Answer:

8y=-56

Step-by-step explanation:

Subtract 15y-2y

after you get 13y subtract 5y which is 8y

afterwards subtract -29-27 which is addition and you get -56

y=-7

Find x rounded to the nearest while number

Answers

Answer:

10.35

Step-by-step explanation:

The given triangle is a right angled ∆ .The data given is ,

Base = x Hypontenuse = 23 Angle = 63° .

We can use ratio of cosine here , as ,

=> cos∅ = b/h

=> cos 63° = x/23

=> 0.45 = x/23

=> x = 23 × 0.45

=> x = 10.35

Hence the value of x is 10.35

A newspaper editor wants to know whether people who buy the newspaper like the paper’s new format. He prints an alphabetical list of all the employee names and asks every fifth person on the list. Is the sample likely to be biased or unbiased? Explain your answer.

Answers

Answer:

I know that's it's Biased but I can't fully get my answer out.

I beleive its biased because he is only asking those who works for the newspaper but every fifth person

I think this answer was help you

Elena would like to know the average height of seventh graders in her school district. She measures the heights of everyone in a random sample of 20 students. The mean height of Elena’s sample is 61 inches, and the MAD (mean absolute deviation) is 2 inches.


Select all the true statements.


Who every can answer this I will give brainliest!! Please help!

Answers

Complete question is;

Elena would like to know the average height of seventh graders in her school district. She measures the heights of everyone in a random sample of 20 students. The mean height of Elena's sample is 61 inches, and the MAD (mean absolute deviation) is 2 inches.

Select all the true statements. Make your selections bold.

A. The median height of the sample must be between 59 and 63 inches.

B. Another random sample of 20 students is likely to have a mean between 57 and 65 inches.

C. The mean height of these 20 students is likely to be the same as the mean height of all students in the district.

D. The mean height of these 20 students is likely to be the same as the mean height of a second random sample of 20 students.

E. Elena would be more likely to get an accurate estimate of the mean height of the population by sampling 40 people instead of sampling 20 people.

Answer:

Options A, B & E are true.

Step-by-step explanation:

We are told that Elena's mean absolute deviation is 2 inches.

This means that the distance between each data point and the mean is equal to 2. This value gives us a good idea about the variability present in the dataset.

This is calculated from the difference between the mean of the absolute value of the initial mean and each data set.

Now, looking at the options. In option A, since mean height of the 20 students is given as 61, it means the median will be close to that figure too. Thus, between 59 and 63 inches given is appropriate.

In option B, if another random sample is taken, the mean would likely be close to 61 too since the MAD is 2.

Thus range given is okay.

In options C & D, there is no evidence to prove that the new mean would be the same as the district or the second random sample. This, both options are not appropriate.

In option E, if she uses a Sample of 40, she will obviously get a more accurate figure because the more the sample the more accurate the average result that represents the population.

Find the arc length of the partial circle.
Either enter an exact answer in terms of T or use 3.14 for pie and enter your answer as a decimal.
units

Answers

Answer:

Arc length

[tex]2\pi \times 8 \times \frac{90}{360} \\ 4\pi[/tex]

Help asap plz and thank you

Answers

Answer:

A

Step-by-step explanation:

z, duehdhdhd 2747 36veuend

Write an inequality that represents eight less than three times a number is more than 22.

Answers

3x-8>22

hope this helps!

What x and y equal to

Answers

Answer:

X = 4, Y = 3.

Explanation:

Since the length of side CK is equal to the length of WM, then you can make the equation 6y-4 = 18. then you just add 4 to each side and divide both sides by six to get 3. Same thing for the other equation. Angle (i think its an angle due to its placement) C is equal to angle M, so you can make the equation 3x + 7 = 19. Subtract seven from both sides then divide by 3 to get 4. Tell me if you have any questions :)

Answer and Step-by-step explanation:

We know the triangles are congruent, so if you were to flip one of the triangles onto the other, the will perfectly match up, allowing us to solve for x and y.

19 = 3x + 7

Subtract 7 from both sides.

12 = 3x

Divide each side by 3.

4 = x

14 = 6y - 4

Add 4 to each side.

18 = 6y

Divide each side by 6.

3 = y

x = 4

y = 3

#teamtrees #PAW (Plant And Water)

Write the number 3.8 x 10-4 in standard form.

Answers

Answer:

0.00038.

Step-by-step explanation:

The exponent is negative 4 so the 3 goes into the 4th place after the decimal point.

correct 2.67754 to two decimal places

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the answer would be 2.68

Two sides of a right triangle measure 2 units and 4 units.
4 units
2 units
What is the area of the square that shares a side with the third side of the triangle?
units?

Answers

the answer is either 20 or 12

Can someone help me with this it's multiple answers

Answers

Answer:

all the answers are correct

Step-by-step explanation:

2 times 2 times 3 times 3 =36

2 times 3 times 2 times 3 = 36

2 times 9 times 2 = 36

2 times 2 times 9 = 36

What is the value of tan C? Leave your answer as a fraction.
Help please!!

Answers

Answer:

35/12

Step-by-step explanation:

Opposite/Adjcent (of C)

35/12

________ probability is based on a uniform probability. Ask yourself: What SHOULD happen when you conduct an experiment?


A) Simple


B) Theoretical


C) Experimental




_____ probability is based on relative frequency. Ask yourself: What ACTUALLY occurred during such an experiment?


A) Simple


B) Theoretical


C) Experimental


HELPP!!!!

Answers

Answer:

The answer is "Experimental Probability  ".

Step-by-step explanation:

The probability of experiments is uncertainty which is calculated several times as per the outcome of even an experiment. The probability distribution is probably dependent upon reasoning. This probability is a price of about one or zero. It was based on the relative frequency or what occurs during a probability test.

20% of $80 and add it to the original amount!

Answers

Answer:

96

Step-by-step explanation:

20 percent of 80 is 16, and added to 80 would equal 96

20% of $80 dollars is $16 USD, now if you add it to the original $80, it would be $96

15 pts, Trigonometic ratios. Please solve as it says on the mandate, Thanks!

Answers

Answer:

WY = 8

Step-by-step explanation:

We solve for above question using the Trigonometric function of Sine

sin θ = Opposite/Hypotenuse

Opposite = WY = x

Hypotenuse = 9

θ = 63°

Hence,

sin 63° = x/9

Cross Multiply

x = sin 63° × 9

x = 8.0190587177

Approximately x = 8

Therefore, WY = 8

35% of a number is what fraction of that number?
Your answer should be
a simplified proper fraction, like 3/5
a simplified improper fraction, like 7/4

Answers

Answer:

7/20, that's what my calculator says, hope this helps

Step-by-step explanation:

What is the measure of angle L? Round to the nearest hundreth.
Help please!!

Answers

Answer:

60.57

Step-by-step explanation:

The angle L can be found using the inverse sine function.

L=arcsin(opp/hyp )

L=arcsin(2.7/3.1)

L =60.57129282

Oak Street and Elm Street run parallel to each other. When Main Street
intersects them, it forms interior 4, measuring 35°. What is the measure of
6?

Answers

Answer: D. 145

Step-by-step explanation: Angle 6+ 35 = 180. 180-35= 145. Angle 2 and Angle 6 are congruent and Angle 2 and Angle 4 make up a line of 180 degrees.

Answer:

D

Step-by-step explanation:

what is the radius of the circle which has the given equation? (x - 2)2 + (y + 1)2 = 16

Answers

Answer:

r = 4units

Step-by-step explanation:

The standard foem of equation of a line is expressed as;

(x-a)² + (y-b)² = r²

r is the radius

Compare with the given equation (x - 2)^2 + (y + 1)^2 = 16

r² = 16

r = √16

r = 4

Hence the radius of the circle is 4

Please Answer these ASAP Find the area.
1. Determine the value of the bases, b and B, used to determine the volume in the object below.
2. Find the area. The polygon is regular. Round answer to the nearest tenth

Answers

Answer:

polygon is regular. Round answer to the nearest tenth

Step-by-step explanation:

[tex]36 - 6 \times = \frac{ < \sqrt{ \geqslant \binom{ | |4)6300 \times - 9x55.90660606.. \sqrt{. \geqslant 522 \sqrt[25h \\ ]{?} \times \frac{?}{?} \times \frac{?}{?} } | | \times \frac{?}{?} }{?} } }{?} \times \frac{?}{?} [/tex]

Which shape has a perimeter of 18 inches?(1 point)

Answers

Answer:

d

Step-by-step explanation:

please view the image below to help solve thank youu


determine whether the scenario involves independent or dependent events then find the probability

Answers

Answer:

B

Step-by-step explanation:

1/4 x 1/4

independent because if you flip a tails on the first toss it doesn't affect the second toss

HELP PLZ URGENT!HELP PLZ URGENT!HELP PLZ URGENT!HELP PLZ URGENT!HELP AGAIN

Answers

Answer:

13 is the answer i think try it out

Differentiate 2x-4x^4

Answers

Answer:

2-16x^3

Step-by-step explanation:

find the volume of the prism

Answers

Answer:

volume = 108

Step-by-step explanation:

simple: volume = base x height

9 x 12 = 108

Answer 1452

Step-by-step explanation:

im not sure if im correct but the formua is V  = L x W x H which is volume equal lenth multiplied by with multiplied by height. so 12 x 11 x 11

ano ang dapat tandaan sa pagbuo ng plano ng proyekto​

Answers

Answer: kung ano ang dapat tandaan ay na kailangan mong makuha ang bawat detalye at gawin ang mga bagay na mabagal upang hindi ka makaligtaan anything. Pinaka utok pls

Step-by-step explanation:

I don't understand how to factor out the GCF of the polynomial
[tex]4x^{2} -8x-6[/tex]

Answers

You have to do 4 times the 8 which is 24. Then find the adding for the -6. 1*6 2*6 3*6 4*6 , 4*6 is 24 so your answer would be (x-4) (x+6)

Suppose f(x) = x2 and g(x) = Which statement best compares the
graph of g(x) with the graph of f(x)?
A. The graph of g(x) is vertically compressed by a factor of 2.
B. The graph of g(x) is horizontally compressed by a factor of 2.
C. The graph of g(x) is horizontally stretched by a factor of 2.
D. The graph of g(x) is shifted 2 units to the right.

Answers

Answer: I think it’s B

Step-by-step explanation:

Sry if wrong pls don’t be mad.

I need help with geometry

Answers

Answer:

[tex]Points ~that ~lies~on ~the~sides~of ~the~triangle.[/tex]

[tex]A)~(a,0)[/tex][tex]D)~\frac{a}{2}=\frac{b}{2}[/tex]

---------------------------

hope it helps...

have a great day!!

Answer:

Options A and D will be your answers

Step-by-step explanation:

hope it helps you...

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