Answer: see below
Step-by-step explanation:
(i)
200/2 = 100
Find 100 on cumulative frequency and the correspinding time: 14 minutes. So the answer is 14 minutes.
(ii)
First, find the lower quartile —> 200/4 = 50
Upper quartile —> 200/(3/4) = 150
Find the difference: 150 - 50 = 100
So the interquartile range is 100
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Fine the length of the side labeled x. Around intermediate values to the nearest tenth. use the rounded values to calculate the next value. round your answer to the nearest tenth.
Answer:
A. 23.6
Step-by-step explanation:
Let the dotted line be y
Then
y/x = sin(50°) ⇒ x = y/sin (50°)and
29/y = tan (58°) ⇒ y = 29/tan (58°)So
x = 29/tan (58°)/sin (50°) ≈ 23.6Correct answer is A. 23.6
Answer:
23.6
Step-by-step explanation:
What are the answers
Answer:
3. 5cm
\(4. \: {a}^{2} + {b}^{2} = {c}^{2} \)
Step-by-step explanation:
3. the hypotenuse C squared = side A squared + side B squared. So 3 × 3=9 and 4 × 4 =16 therefore 9 + 16 =25 and the square root of 25 = 5.
4. In mathematics, the Pythagorean theorem, or Pythagoras's theorem, is a fundamental relation in Euclidean geometry among the three sides of a right triangle.
Hope it is helpful....What is the value of x for the triangle shown to the right?
Answer:
x = 6.24
Step-by-step explanation:
x =
Tan32° = OPP/ADJ
Tan32° = x/10
0.624 = x/10
cross-multiply
x = 6.24
A box measures 5 inches long x 9 inches x 11 inches inches high. What's it's volume in cubic inches?
Answer:
495 cbin
Step-by-step explanation:
Volume of a box = l*w*h
V=5*9*11
V=495
explain the steps to finding the vertex of g(x) = 3x2 + 12x + 15
Answer:
Vertex: (-2, 3)
Step-by-step explanation:
We first have to find the x - variable of the vertex point.
The formula to find the x - variable is x = -b/ 2a.
\(3x^{2} + 12x + 15\)
a b c
Substitute the values into the formula.
x = - 12 / 2(3)
x = - 12 / 6
x = - 2 < - This is the x - variable
Now we have to find the y - variable of the vertex point.
To find the y - variable, we have to substitute the x value into the original equation (\(3x^{2} + 12x + 15\)).
g(x) = y
\(y = 3(-2)^{2} + 12(-2) + 15\\\)
\(y = 3(4) - 24 + 15\)
\(y = 12 - 24 + 15\)
\(y = - 12 + 15\)
\(y = 3\)
So, now that we have the x and y values, we can find the vertex which is (-2, 3).
Hope this helps!
If a storage tank is holding 450 litres when it is three quarters full, how much will it contain when it is two thirds?
Answer:
400 litres
Step-by-step explanation:
Complete the equation that can be used to find the final sale price of an item after a 6% markup if the original price was C and the final
price is f.
HELP PlSS
Answer:
Step-by-step explanation:
You paid C dollars for an item that you sold at a 6% profit.
F = 1.06C
What three consecutive integers have a sum of 12?; What is the sum of 3 consecutive integers?; What is the formula for 3 consecutive integers?; What are the consecutive numbers of 12?
The three consecutive numbers that have a sum of 12 is 3, 4 and 5. The formula for calculation is x + x + 1 + x + 2 = 12.
Let the first number in three consecutive numbers be x. So, the next two numbers will be (x+1) and (x+2). Now, their sum wil be represented as mathematical equation -
x + x + 1 + x + 2 = 12
Performing addition on Left Hand Side of the equation
3x + 3 = 12
Rewriting the equation
3x = 12 - 3
Performing subtraction on Right Hand Side of the equation
3x = 9
x = 9/3
Performing division on Right Hand Side of the equation
x = 3
So, next number = x+1
Second number = 3+1
Second number = 4
Third number = x+2
Third number = 3+2
Third number = 5
Hence, the three consecutive numbers are 3, 4 and 5.
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2. QR = _______ units.
Answer:
4
Step-by-step explanation:
4, count the spaces as in the figure
Adding and Subtracting Rational Expressions - Item 33171Question 4 of 7
Nate found that the least common denominator needed to subtract 3xx2 − 25−1x − 5
is (x+5)(x−5)
. Which is a correct next step?
CLEAR CHECK
3x − 1x2 − x − 30
3x(x + 5)(x − 5)−1(x + 5)(x − 5)
3x(x + 5)(x − 5)−(x + 5)(x + 5)(x − 5)
(3x)(x + 5)(x − 5)(x + 5)(x − 5)−(x + 5)(x − 5)(x + 5)(x − 5)
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Adding and Subtracting Rational Expressions Adding and subtracting rational expressions require the following The rational expressions must have a common denominator.Add or subtract the numerators of the rational expressions and write the result over the common denominator.
Simplify the resulting expression if necessary. When adding or subtracting rational expressions, the common denominator is usually determined by finding the least common multiple (LCM) of the denominators.
The LCM is the smallest expression that can be divided evenly by the denominators.In the case of the addition and subtraction of rational expressions, the rational expressions must have a common denominator. When adding or subtracting rational expressions with the same denominator, add or subtract the numerators of the rational expressions and write the result over the common denominator.
The resulting expression can then be simplified by factoring, canceling out, and then simplifying the factors that remain.If the rational expressions have different denominators, find the LCM of the denominators. The LCM is then used to create equivalent fractions with the same denominator.
After that, you can add or subtract the numerators and simplify the resulting fraction.For example, consider the addition of the rational expressions `3/x` and `2/x+3`.
To add these two rational expressions, the denominators of the two fractions must first be combined. This is done by finding the LCM of the two denominators, which is `x(x + 3)`
.Then, multiply the first fraction by\(\frac{`(x + 3)}{(x + 3)`}\) and the second fraction by `x/x`.This results in \(\frac{`(3(x + 3) + 2x)} {x(x + 3)`}\) after adding the numerators. Simplify by combining like terms and factoring the numerator, resulting in
\(\frac{x`(5x + 9 }{(x(x + 3))}`\).
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please help me im begging you help me i beg u :(
Canterbury Cycles sells Harleys and pays each salesperson a commission of $800 for each cycle sold. During the month of December, a salesperson sold 3 cycles. The company pays commissions on the 5th day of the month following the sale. Which of the following statements is true?a. The salesperson will recognize commission revenue earned in the amount of 2400 in Decemberb. The company will recognize commission expense in the amount of $2,400 in December.c. The salesperson will recognize commission expense in the amount of $2,400 in January.d. The salesperson will recognize revenue in the same month that the cycle dealer recognizes expense.
Answer: The company will recognize commission expense in the amount of $2,400 in December
Step-by-step explanation:
Based on the information given in the question, the company will recognize commission expense in the amount of $2,400 in December.
A commission is regarded as a fee which is paid to a salesperson by a company in exchange for completing a sale.
It should be noted that in the accrual basis of accounting, commission should be recorded in the same period as when the sale generated was generated.
Answer:
b. The company will recognize commission expense in the amount of $2,400 in December.
Step-by-step explanation:
Based on the information given the statements that is true will be: THE COMPANY WILL RECOGNIZE COMMISSION EXPENSE IN THE AMOUNT OF $2,400 IN DECEMBER reason been that each salesperson were paid a commission in the amount of $800 for each cycle sold, which is 3 cycles during the month of December.
Calculation to determine the Commission Expense
Commission Expense=$800*3 cycles
Commission Expense=$2,400
Therefore The company will recognize commission expense in the amount of $2,400 in December.
If one root of the equation ax^2+bx+c=0 be the square of the other root. Prove that b^3 + a²c + ac² = 3abc
Answer:
Step-by-step explanation:
Let \(\alpha, \alpha^2\) be the roots.
\(\therefore \alpha + \alpha^2 = -\frac{b}{a} =\)
\(\therefore \alpha^3 = \frac{c}{a}\)
\(\rightarrow \alpha = (\frac{x}{y}) ^{\frac{1}{3}}\)
\(\alpha + \alpha^2 = -\frac{b}{a}\)
\(\rightarrow (\frac{c}{a})^{\frac{1}{3}} + (\frac{c}{a})^{\frac{2}{3}} = (-\frac{b}{a})\)
\(\rightarrow ((\frac{c}{a})^{\frac{1}{3}} + \frac{c}{a})^{\frac{2}{3}})^3 = -\frac{b^3}{a^3}\)
\(\rightarrow (\frac{c}{a})^{\frac{3}{3}} + (\frac{c}{a})^{\frac{2}{3} * 3} + 3 * (\frac{c}{a})^{\frac{1}{3} + \frac{2}{3}} ((\frac{c}{a})^{\frac{1}{3}} + (\frac{c}{a})^{\frac{2}{3}}) = \frac{-b^3}{a^3}\)
\(\rightarrow \frac{c}{a} + (\frac{c}{a})^2 + 3(\frac{c}{a})(-\frac{b}{a}) = \frac{-b^3}{a^3}\)
\(\rightarrow \frac{c}{a} + \frac{c^2}{a^2} - \frac{3bc}{a^2} + \frac{b^3}{a^3} = 0\)
\(\rightarrow ca^2 + ac^2 - 3abc + b^3 = 0 \Rightarrow b^3 + ac^2 + a^2c = 3abc\)
Source: https://www.doubtnut.com/question-answer/if-one-root-of-the-equation-ax2-bx-c0-is-the-square-of-the-other-prove-that-b3-ac2-a2c3abc-127291775
A nationwide club begins a chapter near you. You research the membership of the club over the past few decades.
The table shows your data. What is the equation for a line of best fit? How many members would you expect
there to be in the year 2022?
Answer:
Option (d)
Step-by-step explanation:
From the given table,
Number of members in 1980 (t = 0) were 5400.
With the period of time number of members increased.
Let the number of years after 1980 = x
Therefore, line of best fit will be in the form of y = mx + b
Where b = Initial number of members = 5400
m = Increase in members in every 5 years duration
So the equation will be,
y = mx + 5400
From the given options,
Equation which matches to our equation is,
y = 310.58x + 5400
For the number of members in year 2022,
x = 2022 - 1980 = 42 years
y = 310.58(42) + 5400
y = 18445
Option (d) will be the answer.
simplify 13¹/3+2¹/3-10/2
The simplified form of 13¹/3 + 2¹/3 - 10/2 is a fraction 64/6 that can be simplified by dividing both the numerator and denominator by their greatest common divisor, which is 2 the final answer is 32/3.
Given
13¹/3+2¹/3-10/2
Required simplified it =?
First, we have simplified both constants separately
13¹/3 = (3 * 13 + 1) / 3 = 40/3
2¹/3 = (3 * 2 + 1) / 3 = 7/3
now the expression become = 40/3 + 7/3 - 10/2
now taking LCM of 3 and 2 which is 6.
= 80/6 + 14/6 - 30/6
now we have to simplify this fraction by dividing by 2 = 64/6
Therefore, the simplified form of 13¹/3 + 2¹/3 - 10/2 is 32/3.
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Write the linear equation that gives the rule for this table.
Answer:
f(x) = -7x + 1
Step-by-step explanation:
Slope intercept form is
y = mx + b
m is slope
b is y-intercept
--------------------------
y decreases by 7 for each increase of 1 in x
slope = -7
to find "b" plug in one of the points and m = -7
using point (3, -20)
y = mx + b
-20 = -7(3) + b
-20 = -21 + b
b = 1
The equation is
f(x) = -7x + 1
Roselyn is driving to visit her family, who live 150 kilometers away. Her average speed is 60 kilometers per hour. The car's tank has 20 liters of fuel at the beginning of the drive, and its fuel efficiency is 6 kilometers per liter. Fuel costs 0.60 dollars per liter. How long can Roselyn drive before she runs out of fuel?
Roselyn can drive a distance until she runs out of fuel for a time of 2.5 hours or until she spends all the fuel, whichever comes first.Roselyn can travel 120 km before running out
Distance travelled with 20 l of petrol in solution and final answer.
Roselyn's average speed is 60 kilometers per hour, and she needs to travel 150 kilometers to reach her family's place. Therefore, she will require a total of 150/60 = 2.5 hours to complete the journey.
The car's fuel efficiency is 6 kilometers per liter, meaning it consumes 1/6 liters of fuel per kilometer. To determine the total fuel required, we multiply the fuel consumption rate by the total distance: 150 * (1/6) = 25 liters of fuel.
Since the car's tank has 20 liters of fuel at the beginning of the drive, Roselyn will need an additional 25 - 20 = 5 liters of fuel to complete the journey.
As fuel costs 0.60 dollars per liter, Roselyn will need to spend a total of 5 * 0.60 = 3 dollars to purchase the necessary fuel.
Therefore, Roselyn can drive until she runs out of fuel for a time of 2.5 hours or until she spends all the fuel, whichever comes first.
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BEST GETS BRAINLIEST JUST NEED CONFIRMATION TAHT I GOT IT RIGHT ANY HELP IS APPRECIATED
Answer:
2) Correct
3) Correct
4) Correct
5) Correct
U got them all correct! Nice
Step-by-step explanation:
16 families went on a trip which cost them Rs 2,16,352. How much did each
family pay?
Given that 16 families went on a trip and the cost of the trip was Rs. 2,16,352.The amount paid by each family is to be determined by unitary method Hence each family paid Rs.13522
Now, let's solve this by using the method of unitary method. To find the cost of 1 family trip, we will divide the total cost of the trip by the number of families.2,16,352 / 16 = 13,522 So, the cost of the trip per family is Rs. 13,522.Hence, each family paid Rs. 13,522 for the trip.
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Answer:
Step-by-step explanation
1. The total cost of the trip for all 16 families is Rs 2,16,352.
2. To find out how much each family paid, we need to divide the total cost by the number of families: Rs 2,16,352 ÷ 16.
3. When we do the division, we get the result: Rs 13,522.
Now let's check if this result is correct:
1. If each family paid Rs 13,522 for the trip, then the total cost for all 16 families would be: 16 × Rs 13,522 = Rs 2,16,352.
2. This is exactly the same as the total cost given in the problem statement.
So we have shown that each family paid **Rs 13,522** for the trip
Find the equation of the line that satisfies the conditions given in each of the following: 1. Through (3, 2) and (5, 7) 2. Through (-3, 4), m = 2 3. m = -3, b = 5 4. x-intercept = 3, y-intercept
The equation of each line that satisfies the given conditions are:
1. y - 2 = 5/2(x - 3)
2. y - 4 = m(x + 3)
3. y = -3x + 5
What is the Equation of a Line?If we know the slope (m) and the y-intercept (b) of a line, we can write the equation of the line as y = mx + b in slope-intercept form.If we know the point (a, b) and the slope (m) of the line, we can write the equation of the line in point-slope form as y - b = m(x - a).1. Given the points, (3, 2) and (5, 7), find the slope (m):
Slope (m) = change in y / change in x = (7 - 2)/(5 - 3)
m = 5/2
Write the equation in point-slope form by substituting m = 5/2 and (a, b) = (3, 2) into y - b = m(x - a):
y - 2 = 5/2(x - 3)
2. Given:
A point = (-3, 4)
Slope (m) = 2
Substitute (a, b) (-3, 4), and m = 2 into y - b = m(x - a):
y - 4 = m(x + 3) [equation of the line]
3. Given:
Slope (m) = -3
Y-intercept (b) = 5
Substitute m = -3 and b = 5 into the equation y = mx + b:
y = -3x + 5
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Magic Realm, Inc., has developed a new fantasy board game. The company sold 15,000 games last year at a selling price of $20 per game. Fixed costs associated with the game total $182,000 per year, and variable costs are $6 per game. Production of the game is entrusted to a printing contractor. Variable costs consist mostly of payments to this contractor.
Required:
1) Prepare a contribution format income statement for the game last year and compute the degree of operating leverage.
2) Management is confident that the company can sell 18,000 games next year (an increase of 3,000 games, or 20%, over last year).
Compute:
a) The expected percentage increase in net operating income for next year.
b) The expected total dollar net operating income for next year.
The expected total dollar net operating Income for next year = $70,000
1) The contribution format income statement for the game last year, and the degree of operating leverage is computed below:
Contribution format income statement for the game last year Sales (15,000 × $20) = $300,000
Variable expenses (15,000 × $6) = $90,000
Contribution margin = $210,000
Fixed expenses = $182,000Net operating income = $28,000
Degree of operating leverage = Contribution margin / Net operating income= $210,000 / $28,000= 7.5 2)
The expected percentage increase in net operating income for next year:
The expected sales in next year = 18,000
games selling price per game = $20
Therefore, Total sales revenue = 18,000 × $20 = $360,000
Variable expenses = 18,000 × $6 = $108,000
Fixed expenses = $182,000
Expected net operating income = Total sales revenue – Variable expenses – Fixed expenses
= $360,000 – $108,000 – $182,000= $70,000
The expected percentage increase in net operating income = (Expected net operating income - Last year's net operating income) / Last year's net operating income*100= ($70,000 - $28,000) / $28,000*100= 150%
The expected total dollar net operating income for next year = $70,000
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50% OFF!
Rebecca buys a fancy watch during the sale. If Rebecca pays $24, what was the original price?
Answer: 48
Step-by-step explanation: Do 24 divided by 0.50 which will give you 48
P.S. Hope this helps!
Answer:
$48
Step-by-step explanation:
100%-50%=50%
50%=24
100%=24x2=48
Hope this helps! Thanks
PLEASE HELP ME 20 POINTS + BRAINLIEST
Can someone help me please it's only 2 questions!!!!!
Problem 1
Answer: -4 + 7Reason: We start at 0 and move 4 units left. This is represented by 0+(-4) or 0-4. That simplifies to -4. Then add on 7 to move 7 units to the right to arrive at 3 as the final destination.
=============================================
Problem 2
Answer: 8 + 3Reason: We start at 0 and move 8 units to the right. That is represented by +8 or simply 8. Then the +3 will move us 3 more units to the right to get to 11 on the number line. This is one visual way to see why 8+3 = 11.
Find an equation for the perpendicular bisector of the line segment whose endpoints are ( 8 , − 1 ) (8,−1) and ( 4 , − 9 ) (4,−9).
The equation of the perpendicular bisector of the line segment is y = - (1 / 2) · x - 2.
What is the equation of the perpendicular bisector of a line segment?
In this problem we find a line segment whose endpoints are known and we need to determine the equation of the line perpendicular such that the segment is partitioned into two segments of equal length. Now we present the procedure. First, determine the coordinates of the midpoint:
M(x, y) = 0.5 · (8, - 1) + 0.5 · (4, - 9)
M(x, y) = (6, - 5)
Second, determine the slope of the line segment:
m = [- 9 - (- 1)] / (4 - 8)
m = (- 8) / (- 4)
m = 2
Third, calculate the slope of the bisector:
m' = - 1 / m
m' = - 1 / 2
Fourth, determine the intercept of the bisector:
b = y - m' · x
b = - 5 - (- 1 / 2) · 6
b = - 5 + 3
b = - 2
The equation of the perpendicular bisector of the line segment is y = - (1 / 2) · x - 2.
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For the function f(x)=x+4−−−−−√
, the average rate of change to the nearest hundredth over the interval 2 ≤ x ≤ 6 is
The average rate of change of the function f(x) = √(x+4) over the interval 2 ≤ x ≤ 6 is approximately 0.29 to the nearest hundredth.
To find the average rate of change of the function f(x) = √(x+4) over the interval 2 ≤ x ≤ 6, we need to calculate the change in the function divided by the change in the input variable over that interval.
The change in the function between x = 2 and x = 6 is:
f(6) - f(2) = √(6+4) - √(2+4) = √10 - √6
The change in the input variable between x = 2 and x = 6 is:
6 - 2 = 4
So, the average rate of change of the function over the interval 2 ≤ x ≤ 6 is:
(√10 - √6) / 4
To approximate the answer to the nearest hundredth, we can use a calculator or perform long division to get:
(√10 - √6) / 4 ≈ 0.29
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ANSWER PROPERLY
FIND A;B;C
EXPLAIN
Answer:
a = 120°
b = 55°
c = 25°
Step-by-step explanation:
a = 40 + 80 = 120° (exterior angle)
180 - 95 = 85° (sum of adjacent angles on a straight line=180)
b = 180 - 85 - 40 = 55° (sum of angles in a triangle=180)
180 - 120 = 60° (sum of adjacent angles on a straight line=180)
c = 180 - 60 - 95 = 25° (sum of angles in a triangle=180)
The value of angle a is 120°
The value of angle b is 55°
The value of angle c is 25°
What is a triangle?It is a two-dimensional figure which has three sides and the sum of the three angles is equal to 180 degrees.
We have,
Angle a is an exterior angle along with 40° and 80°.
a = 40 + 80
a = 120°
The adjacent angle along with angle a makes 180 degrees.
Adjacent angle = m ( consider )
a + m = 18
120 + m = 180
m = 180 - 120
m = 60
The triangle with angles c, 95°, and m.
The sum of angles in a triangle is 180 degrees.
c + 95 + m = 180
c + 95 + 60 = 180
c = 180 - 95 - 60
c = 180 - 155
c = 25°
The adjacent angle along with 95°.
Adjacent angle = n ( consider )
n + 95 = 180
n = 180 - 95
n = 85
The sum of the angles in the triangle that contains b, 40°, and n.
b + 40 + n = 180
b + 40 + 85 = 180
b = 180 - 125
b = 55°
Thus,
The value of angle a is 120°
The value of angle b is 55°
The value of angle c is 25°
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plz help me asapppppppp
Answer:
7. x = 37.5
8. x = 8
Step-by-step explanation:
7. The sides of the triangles are proportional, therefore:
x/20 = (46 - 16)/16
x/20 = 30/16
Cross multiply
x*16 = 30*20
16x = 600
Divide both sides by 16
x = 600/16
x = 37.5
8. The sides of the triangles are proportional. Therefore,
(7x - 1)/22 = (3x + 1)/10
Cross multiply
10(7x - 1) = 22(3x + 1)
70x - 10 = 66x + 22
Collect like terms
70x - 66x = 10 + 22
4x = 32
4x/4 = 32/4
x = 8
what are the coordinates of the vertex of the parabola with the equation y=x^2+2x-3
Answer: Answer is (-1,-4).
\(\textit{vertex of a vertical parabola, using coefficients} \\\\ y=\stackrel{\stackrel{a}{\downarrow }}{1}x^2\stackrel{\stackrel{b}{\downarrow }}{+2}x\stackrel{\stackrel{c}{\downarrow }}{-3} \qquad \qquad \left(-\cfrac{ b}{2 a}~~~~ ,~~~~ c-\cfrac{ b^2}{4 a}\right) \\\\\\ \left(-\cfrac{ 2}{2(1)}~~~~ ,~~~~ -3-\cfrac{ (2)^2}{4(1)}\right)\implies \left( -1~~,~~-3-1 \right)\implies (-1~~,~~-4)\)
In which number is the figit 8 ten times it is in the number 18?
Answer:
Let's call the number we are looking for "x". We are told that the digit 8 appears ten times as often in "x" as it does in 18.
The digit 8 appears once in the number 18, so it must appear 10 times in "x".
Let's count the number of 8's in "x" in terms of the number of digits of "x".
If "x" has 1 digit, then it cannot have 10 8's, so we can rule out this case.
If "x" has 2 digits, then the maximum number of 8's it can have is 9 (e.g., 88). This is still not enough, so we can rule out this case as well.
If "x" has 3 digits, then the maximum number of 8's it can have is 27 (e.g., 888), which is enough.
Therefore, the number we are looking for is a 3-digit number that contains 10 8's. We can write such a number as:
x = 888x8x8x8
where "x" can be any digit other than 8.
Note that there are other 3-digit numbers that contain 10 8's, but this is one possible solution.
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