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
Answers
Answer:
5
Step-by-step explanation:
Related Questions
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]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.
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:
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
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
correct 2.67754 to two decimal places
Answers
________ 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.
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
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
Which shape has a perimeter of 18 inches?(1 point)
Answers
Answer:
d
Step-by-step explanation:
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
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 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)
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.
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]
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
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
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
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...
Differentiate 2x-4x^4
Answers
Answer:
2-16x^3
Step-by-step explanation:
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 10.35Oak 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 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
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
Help asap plz and thank you
Answers
Answer:
A
Step-by-step explanation:
z, duehdhdhd 2747 36veuend
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.
I don't understand how to factor out the GCF of the polynomial
[tex]4x^{2} -8x-6[/tex]
Answers
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
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
Write an inequality that represents eight less than three times a number is more than 22.
Answers
3x-8>22
hope this helps!