Answers
B'C' = 3BC
Explanations:Note:
When a figure is dilated by a scale factor, a similar figure of the same shape but of different size is formed.
When a triangle ABC is dilated by a scale factor of 3, the vertices of the image of ΔA'B'C' formed will have a distance from the center of dilation that is three times that of the vertices of ΔABC
Therfore:
A'B' = 3AB
B'C' = 3BC
A'C' = 3AC
The correct choice is option B
That is, B'C' = 3BC
Related Questions
Question 15 of 31In a 45-45-90 right triangle, what is the ratio of the length of one leg to thelength of the other leg?A. 2:1B. 1:2C. 2:1O D. 1:1SUBMIT
Answers
Ratio = 1:1 (option D)
Explanation:We use an illustration to answer the question
One leg = 1
Another leg = 1
When we compare the two images, the ratio of the leg of the 45-45-90 right triangle:
Ratio = 1/1
Ratio = 1:1 (option D)
A gopher has dug hose and opposite corners of a rectangle yard if the artist 12 m x 16 m how far will the golfer have to run to get from one of its holes to the other
Answers
Given:
There are given that a rectangular yard.
Explanation:
To find the distance that one holes to other:
We need to use the Pythagoras theorem.
So,
From the Pythagoras theorem:
[tex]c^2=a^2+b^2[/tex]Where,
[tex]\begin{gathered} a=12 \\ b=16 \end{gathered}[/tex]Then,
Put both values into the above formula
So,
[tex]\begin{gathered} c^2=a^2+b^2 \\ c^2=12^2+16^2 \\ c^2=144+256 \\ c^2=400 \\ c=\sqrt[]{400} \\ c=20 \end{gathered}[/tex]Final answer:
Hence, 20 meters that will the gopher have to run get from one of its holes to the other.
There are given that a rectanglua
Comparing Relationships with Tables1. Decide whether each table could represent a proportional relationship.If the relationship could be proportional, what would the constant ofproportionality be?a. How loud a sound is depending on how farDistance toaway you are.Listener (ft)Sound Level(dB)85791020407367Costb. The cost of fountain drinks at Hot Dog Hut.Volume(fluid ounces)($)$1.4920$1.59$1.8930
Answers
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form y=kx
where
k is the constant of proportionality
Verify each table
table a
Let
x ----> distance
y ----> sound level
For each ordered pair calculate the value of k
k=y/x
so
(5,85) -----> k=85/5=17
(10,79) ----> k=79/10=7.9
the values of k are differents
that means
the table nor represent a proportional relationship
table b
let
x ----> volume
y ----> cost
k=y/x
(16,1.49) ----> k=1.49/16=0.093125
(20,1.59) ----> k=1.59/20=0.0795
the values of k are differents
that means
the table nor represent a proportional relationship
Which answer choice correctly represents 1.436363636…?A) 1.436 _B) 1.436 __D) 1.436 ___C) 1.436
Answers
Given: The number below
[tex]1.436363636\ldots[/tex]To Determine: The simplified form of writing the given number
It can be observed the given number that 36 keeps recurring indefinitely
Hence, the nuumber can be written as
[tex]1.436363636\ldots=1.4\bar{36}[/tex]Hence, option C is the correct answer
Select the correct answer from each drop-down menu.y 10+816+4AETBBية1+60-8106A sequence of transformations maps AABCO ABC. The sequence of transformations that maps ABC onto ABC is a✓ followed by
Answers
Explanation:
To find the transformation
We will first have to write out the coordinates of ABC
The coordinates of ABC are:
[tex]\begin{gathered} A=(-4,4) \\ B=(-8,2) \\ C=(-6,6) \end{gathered}[/tex]Next, we will write the equation of the image
[tex]\begin{gathered} A^{\prime}=(4,-2) \\ B^{\prime}=(2,2) \\ C^{\prime}=(6,0) \end{gathered}[/tex]From the given coordinates of the image and pre-image
When we rotate a figure of 90 degrees counterclockwise, each point of the given figure has to be changed from (x, y) to (-y, x) and graph the rotated figure.
To rotate the figure 90 degrees clockwise about a point, every point(x,y) will rotate to (y, -x)
Also, there was a
a dime has a diameter of 17.91 millimeters. What is the area of the face of the dime? use 3.14 for π. Round to the nearest hundredth if necessary
Answers
The area of a circle is:
[tex]A=\pi\cdot r^2[/tex]As you have the diameter, use it to find the radius: the radius of a circle is equal to the half of the diameter:
[tex]\begin{gathered} r=\frac{d}{2} \\ \\ r=\frac{17.91\operatorname{mm}}{2}=8.955\operatorname{mm} \end{gathered}[/tex]Then, the area is: 251.80 millimeters[tex]\begin{gathered} A=(3.14)(8.955mm)^2 \\ A=251.80\operatorname{mm} \end{gathered}[/tex]55. Use the effective tax rate method to calculate the property tax on a $112,500 home. The assessment rate is 43%. The property tax rate is$32.89 per $1,000 of assessed value. Round the effective tax rate to threeplaces. What is the property tax?
Answers
Let's begin by listing out the given information:
Home (Property Value) = $112,500
Assessment rate = 43% = 0.43
Property tax rate = $32.89 per $1,000 of assessed value
The Property tax is calculated using the formula:
[tex]\begin{gathered} AssessedValue=112,500\times0.43=48,375 \\ PropertyTax=\frac{32.89}{1,000}\times48,375=1591.05375\approx1591.05 \\ PropertyTax=\text{ \$}1591.05 \end{gathered}[/tex]The effective tax is calculated using the formula:
[tex]\begin{gathered} ETR=\frac{TaxesPaid}{TaxableIncome} \\ ETR=\frac{PropertyTax}{AssessedValue}=\frac{1591.05}{48,375}=0.0329 \\ ETR=0.0329=3.29\text{ \%} \\ ETR=3.29\text{ \%} \end{gathered}[/tex]it is due today!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!1
Answers
The value of 5/9x - 2/3y + xy when x = 3/5 and y = 1/2 is 3/10
We need to evaluate the expression
5/9x - 2/3y + xy
x = 3/5 and y = 1/2
(5/9)(3/5) - (2/3)(1/2) + (3/5)(1/2)
(15/45) - (2/6) + (3/10)
1/3 - 1/3 + 3/10
= 3/10
Therefore, the value of 5/9x - 2/3y + xy when x = 3/5 and y = 1/2 is 3/10
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Help me asap I'm so stressed it's a Yes Or No questionstheres 7 questions in the image each one is a yes or no answer pls help I'm super stressed
Answers
Explanation:
A relation is a function if every value of x is related to just one value of y.
So, number 6 is not a function because -4 is related to 9 and -4 is also related to 0.
Number 7 is a function because every value of x (first coordinate) is related to one value of y (second coordinate).
In the same way, we can say that number 8 is also a function and number 9 is not a function because number 7 is related to 0, -5, -8, 4, and 3.
Finally, for the graph of numbers 10, 11, and 12 we need to identify the coordinates of every point.
So, number 10 is equivalent to:
{(-7, -1), (-2, -7), (0, 2), (4, 2), (6,6)}
It means that number 10 is a function
For number 11, we get:
{(-5, -4), (-3, 5), (2, -1), (2
Write a numerical expression in the first box that represents the number of points earned or lost each round.then write Andy's final point total at the end of the competition in the second box.
Answers
In the first round, Andy has -320 times 1/2, which corresponds to
[tex]-320\times\frac{1}{2}=-\frac{320}{2}=-160[/tex]In the second round, Ansy has
[tex]710\times\frac{1}{4}=\frac{710}{4}=\frac{355}{2}[/tex]which corresponds to 177.5 (in decimals).
Finally, Andy's final point is
[tex]-320\times\frac{1}{2}+710\times\frac{1}{4}-500[/tex]which is equal to
[tex]-160+177.5-500=-482.5[/tex]that is, Andy's final point is - 482.5.
Allison drew a map of where she and her friends live. Allison's house is at point A, and her friends live at points B, C, and D. She only wrote some of the distances, in blocks, on the map. Also, AD¯¯¯¯¯¯¯¯ is a perpendicular bisector of BC¯¯¯¯¯¯¯¯. Allison wants to know the distance between her house and point C.What is the measure of AC?
Answers
Solution:
Given that;
Allison drew a map of where she and her friends live.
Allison's house is at point A, and her friends live at points B, C, and D
Where, line segment AD is a perpendicular bisector of BC,
And a perpendicular bisector is a line segment which bisects another line segment at 90 degrees, and divides it into two equal parts..
Since, AD is a perpendicular bisector of BC, then
[tex]\begin{gathered} BD=CD=3 \\ \angle ADB=\angle ADC \\ And,\text{ }AD=CD \\ Thus, \\ \Delta ADB\cong\Delta ADC\text{ \lparen SAS\rparen} \end{gathered}[/tex]Hence,
[tex]AB=AC=4.24[/tex]The measure of AC is 4.24
A store has clearance items that have been marked down by 45%. They are having a sale, advertising anadditional 50% off clearance items. What percent of the original price do you end up paying?%Give your answer accurate to at least one decimal place.
Answers
We have clearance items that have two discounts applied to its price.
We can use a $1 item to find the final discount.
If we apply a 45% mark down, we will obtain a price of:
[tex]1-1*0.45=0.55[/tex]The discounted price is $0.55.
To this price we apply a 50% off. This can be expressed as:
[tex]0.55(1-0.5)=0.55*0.5=0.275[/tex]This is the final price.
We can calculate the percentage of the original price as:
[tex]\frac{P_d}{P_0}=\frac{0.275}{1}=0.275=27.5\%[/tex]Answer: 27.5%
What is the perimeter of the figure Assume that all angles are right anglesA) 23 yardsB) 30 yardsC) 32 yardsD) 26 yards
Answers
The perimeter of the figure is the sum of the lengths of its sides. Find the missing side lengths to calculate the perimeter of the figure.
The length of then missing horizontal side is 6yd because it must add up to 8yd with the 2yd segment.
The length of the missing vertical side is 4yd because it must add up to 7yd with the 3yd segment.
Then, the perimeter of the figure is:
[tex]\begin{gathered} P=7yd+8yd+3yd+2yd+4yd+6yd \\ =30yd \end{gathered}[/tex]Therefore, the correct choice is option B) 30 yards.
there are four marbles in a vase blue blue red and green jenny pulls out two marbles without replacement list tge sample space
Answers
Let' begin by listing out the information given:
Number of marbles = 4; blue, blue, red, and green
Jenny pulls out two marbles without replacement. We have:
[tex]\begin{gathered} S=\mleft(Blue,Blue\mright),(Blue,Red),(Blue,Green) \\ S=(Red,Blue),(Red,Green) \\ S=(Green,Blue),(Green,Red) \\ \therefore S=\mleft\lbrace(BB),(BR),(BG),(RB),(RG),(GB),(GR)\mright\rbrace \end{gathered}[/tex]Write a equation of the line described
Passes through (4,8)
Parallel to the line y=-7/4x-4
Answers
Answer:
y=-7/4x+15
Step-by-step explanation:
Parallel line so has the same gradient:
y=-7/4x+c
Substitute (4,8) into above equation
8=(-7/4 x 4)+ c
rearrange to find c
8=-7+c
c=15
New equation: y=-7/4x+15
Hope this helps!
use three letters to name (a) the plane on which the square pyramid sits and (b) a plane represented by one of the sides.
Answers
Use three letters to name
(a) The plane on which the square pyramid sits and ABC
Why : because ABC is at the base of the square pyramid
b) A plane represented by one of the sides. ABG
Why : Because ABG represents the triangle of one of the 4 sides of the pyramid
There are 167 students taking a foreign language at North HighSchool. Based on the graphic above, how many students are takingSpanish?
Answers
59 (1st option)
Explanation:Given:
Total students taking the foreign language = 167
To find:
The number of students taking Spanish
To determine the number of students for Spanish, we will do an estimation:
The Spanish region is represented by the red region
The blue and red region is approximately half of the circle. This means half of the total students
Half of the students = 1/2(167) = about 83 students
The blue region in the half of the circle is about 1/3. The red represents the remaining part (2/3)
The Spanish region = 2/3 × 83
The Spanish region = 55.3
The closest number to this in the options is 59 (1st option)
Stretch or compress each linear function. Let g(x) be a vertical compression of f(x)=8x+6 by a factor of 1/4. Write the rule for g(x).
Answers
we have
f(x)=8x+6
we know that
The rule for a vertical compresion of f(x) is equal to
(x,y) -------> (x, ay)
where a is the factor
so
(x,f(x)) -------> (x,1/4f(x))
thet means
g(x)=1/4{8x+6}
g(x)=2x+1.5
PLEASE EEEEEEEE this is very important :’)
Answers
number attended/ total people
a) 153/225 = 17/25 = 0.68 = 68%
Answer:
A
Step-by-step explanation:
[tex]{ \tt{ = \frac{153 \div 9}{225 \div 9} }} \\ \\ = { \tt{ \frac{17}{25} }} \\ \\ = 0.68 \times 100\% \\ \\ = 68\%[/tex]
Write an equation of the line in slope intercept form that passes through the given point and is perpendicular to the given line.(-2,4) , y = 2x + 9
Answers
We are given the point (-2,4) and the line y=2x+9. We want the equation of the line that passes through the given point and that is perpendicular to the given line.
To do so, we will use the following equation of a line
[tex]y\text{ -a = m\lparen x -b\rparen}[/tex]in this equation, m is the slope of the line and (a,b) is a point in the line. In our case, we are given that (-2,4) is in the line. That is, a=-2 and b=4. So our equation becomes
[tex]y\text{ -4=m\lparen x -\lparen-2\rparen\rparen}[/tex]or equivalently
[tex]y\text{ -4}=m(x\text{ +2\rparen}[/tex]now, we only need to find the value of m. To do so, we use the given line and the fact that the product of the slopes of perpendicular lines is -1.
The given line (2x+9) has a slope of 2. So, we have the following equation
[tex]m\cdot2=\text{ -1}[/tex]so if we divide both sides by 2, we get that
[tex]m=\text{ -}\frac{1}{2}[/tex]So the equation we are looking for becomes
[tex]y\text{ -4 }=\text{ -}\frac{1}{2}(x\text{ +2\rparen}[/tex]We want this equation in the slope intercept form. So we operate to find y in this equation. So first, we distribute on the right hand side. We get
[tex]y\text{ -4}=\text{ -}\frac{1}{2}x\text{ -}\frac{2}{2}=\text{ -}\frac{1}{2}x\text{ -1}[/tex]now we add 4 on both sides, so we get
[tex]y=\text{ -}\frac{1}{2}x\text{ -1+4= -}\frac{1}{2}x+3[/tex]we can check that if x= -2 we get
[tex]y=\text{ -}\frac{1}{2}(\text{ -2\rparen+3=1+3=4}[/tex]which confirms that the point (-2,4) is on the line
gabrielle wants to buy a new pair of jeans. if the jeans were originally $25.00, but are on sale with a $15 discount, how much will gabrielle have to pay for the jeans.
Answers
the same thing i did when my dad died in a motorcycle crash and my mom had a stroke in her arms when i got to work in a hospital
25-15=10
abubububuvuv
Suppose Julia spends $932 on her credit card. Calculate the amount of interest she would owe in one month if she does NOT pay off her balance in full by the due date. Julia's APR is 16.99%. Estimate the interest charges using the monthly periodic rate
Answers
Answer:
The amount of interest she would owe in one month if she does not pay off her balance in full by the due date is $13.2
Explanation:
Given that Julia's APR is 16.99%
Suppose she spends $932 on her credit card, the amount of interest she would owe in a year is 16.99% of $932, this amounts to
0.1699 * 932
= $158.3468
To know the interest in a month, we divide the last result by 12
158.3468/12
= $13.196
This is approximately $13.2
Find the value of xa. 13 b. 14/5 c. 5 d. 8
Answers
Given that
There is a figure of the circle and we have to find the value of x.
Explanation -
Since the two chords of the circle are given and they are intersected making four parts. And we have to find the value of x.
So by using Intersecting Chords Theorem
If AC and BD are the chords intersecting at E. Then,
AE x EC = DE x EB
So in the given figure we have,
[tex]\begin{gathered} 4\times10=x\times8 \\ 40=x\times8 \\ x=\frac{40}{8} \\ x=5 \end{gathered}[/tex]
So C is the correct option.
Final answer -
Therefore the final answer is 5.A researcher is interested in whether using mental imagery can help people remember specific details when given information. To conduct the experiment, the researcher asks 100 volunteers to participate. The researcher places everyone’s name in a hat and randomly selects 50 names, making sure to sure to mix the names between each selection.
Which component is missing from the researcher’s process?
The researcher did not use enough randomization in the process.
The researcher used volunteers instead of randomly selected people from the population.
The researcher did not assign the 50 names to the treatment group or the control group.
The researcher should have used numbers instead of names for confidentiality reasons.
Answers
The 50 names were not allocated to either the treatment group or the control group by the researcher.
What is research?A problem must be thoroughly investigated in order to meet specific planned research objectives.
Research involves a certain process. The definition of the issue that will be studied during the research process is one of the crucial procedures.
After doing that, the researcher must decide whether there is enough knowledge about the issue that he or she plans to study.
Scientific research is research done with the intention of advancing science by the methodical collection, analysis, and evaluation of data—and that too in a planned manner: This research is being done by a researcher.
The instruments of observation, experimentation, and conclusion are essential components of the scientific method.
In this instance, the researcher should have randomly assigned the volunteers to the treatment group and the control group.
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If the lines /1 and /2 are parallel, what must be value of y?
Answers
ANSWER
y = 130 degrees
STEP-BY-STEP EXPLANATION
Key points to note in the provided figure
Alternate exterior angles are equal
The sum of supplementary angles is 180 degrees
From the figure given, angle y and angle 5x are alternate exterior angles
Since alternate exterior angles are equal. Hence, angle y = angle 5x
y = 5x
Also, angle (2x - 2) and y are supplementary angles
Recall, the sum of supplementary angles is 180 degrees
Hence, we have
y + (2x - 2) = 180
Note, y = 5x
substitute y = 5x into the above equation
5x + (2x - 2) = 180
Open the parenthesis
5x + 2x - 2 = 180
Collect the like terms
5x + 2x - 2 = 180
7x - 2 = 180
Add 2 to both sides of the equation
7x - 2 + 2 = 180 + 2
7x = 182
Divide both sides by 7
7x/7 = 182/7
x = 26 degrees
Since we have gotten the value of x = 26 degrees. Hence, we can now find the value of y
Recall, y = 5x
y = 5(26)
y = 130 degrees
In right triangle ABC, m 2 A = 32°, m 2 B= 90°, andAC = 6.2 cm. What is the length of BC, to the nearesttenth of a centimeter?
Answers
Given Data:
In a triangle ABC,
[tex]\begin{gathered} \angle A=32^{\circ} \\ \angle B=90^{\circ} \\ AC=6.2\text{ cm.} \end{gathered}[/tex]From the triginometry,
[tex]undefined[/tex]using the values from the graph, compute the values for the terms given in the problem. Choose the correct answer. Age of car = 4 years Original cost = 13,850 The current market value is $ _
Answers
Answer:
3462.5$
Step-by-step explanation:
If the percentage after 4 years was 25% then it dropped to 3462.5$.
f(x) = -x^2 - 4x + 13find f(3)
Answers
In this case, we'll have to carry out several steps to find the solution.
Step 01:
Data
f(x) = -x^2 - 4x + 13
f(3) = ?
Step 02:
f(x) = - x² - 4x + 13
f(3) = - (3)² - 4(3) + 13
f(3) = - 9 - 12 + 13
f(3) = - 21 + 13
f(3) = - 8
The answer is:
f(3) = - 8
Trying to use a model or number line for fractions for a 4th grader
Answers
Given:
[tex]\frac{76}{100}-\frac{50}{100}[/tex]Solve:
[tex]\begin{gathered} \frac{76}{100}-\frac{50}{100} \\ so\colon \\ =\frac{76-50}{100} \\ =\frac{26}{100} \end{gathered}[/tex][tex]\begin{gathered} =\frac{26}{100} \\ =0.26 \end{gathered}[/tex]In number line 0.26 lies in between 0 to 1.
which improper is equal to 4
Answers
Looking at the given fractions,
4/4 = 1
12/3 = 4
12/4 = 3
Thus, the improper fraction that is equal to 4 is 12/3