Step-by-step explanation:
x=15 i hope thats the right answer
△ABC has vertices at A(5,1), B(−3,1), and C(−2,5).
Point D is located on the intersection of the altitude and AB¯¯¯¯¯¯¯¯, in such a way that D has coordinates at (−2,1).
What is the area of △ABC?
Answers:
16 units squared
28 units squared
18 units squared
14 units squared
The area of △ABC is 22 square units.
How to determine the area of △ABC?From the question, we have the following parameters that can be used in our computation:
△ABC has vertices at A(5,1), B(−3,1), and C(−2,5).
The area of △ABC is then calculated as
Area = |(1/2)(x1)(y2 - y3) + (x2)(y3 - y1) + (x3)(y1 - y2)|
Plugging in the given vertices for △ABC, the area can be calculated as follows:
Area = |(1/2)(5)(1 - 5) + (-3)(5 - 1) + (-2)(1 - 1)|
This gives
Area =|-22|
= 22
The area of △ABC is 22 square units.
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(0,-1)
(2,-5)
find slope
Answer: The slope between the points (0,-1) and (2,-5) is (-5 - (-1)) / (2 - 0) = -4 / 2 = -2.
Step-by-step explanation:
A carnival game charges each contestant $ 10 to spin a wheel with 6 equally likely spaces: 3 spaces result in the contestant winning nothing. 2 spaces result in the contestant winning a prize whose value is $ 5. 11 space results in the contestant winning a prize whose value is $ 20 .
Based on the information above, the probability of winning the $20 prize is 0.16.
How to find the probability that the contestant wins $20?To find the probability that the contestant wins $20 we must carry out the following mathematical procedure:
1 / 6 = 0.160.16 * 1 = 0.16Based on this result, we can infer that the probability that the contestant wins the $20 is 0.16. Additionally, you have a 0.5 chance of winning nothing and a 0.33 chance of winning $5.
0.16 * 3 = 0.50.16 * 2 = 0.33Note: This question is incomplete because there is some information missing. Here is the complete information:
Tasks
Find the probability that the contestant will win the $20 prize.
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sam estimates that if he leaves his car parked outside his office all day on a weekday, the chance that he will get a parking ticket is 13%. if sam leaves his car parked outside his office all day next tuesday, what is the chance that he will not get a parking ticket?
The chance that Sam will not get a parking ticket is 87%.
No Parking Ticket ChanceTo find the chance of not getting a parking ticket, subtract the chance of getting a ticket from 100%.
Step 1: Take the chance of getting a ticket, which is 13%
Step 2: Subtract it from 100%
100% - 13% = 87%
So, the chance that he will not get a parking ticket is 87% if Sam want to leaves his car parked outside his office all day next tuesday.
This question is about the probability of Sam getting a parking ticket if he leaves his car parked outside his office on a weekday. Sam estimates that the chance of getting a ticket is 13%. To find the chance of not getting a ticket, the probability of getting a ticket (13%) was subtracted from 100%. The result, 87%, represents the chance that Sam will not get a parking ticket.
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Problem No. 8
A rectangular schoolroom floor can be covered by 2400 square tiles. If the tiles are 5cm longer and
5cm wider, 1350 tiles are needed.
If none of the tiles are cut, what is the area of the floor in m²?
The area covered by the tiles is 54 square meters.
How to determine the area of a set of tiles
In this problem we find that 2400 square tiles can cover a rectangular school room and 1350 square tiles if each tile is 5 centimeters longer and 5 centimeters wider. Algebraically speaking, this situation is represented by following formula:
2400 · x² = 1350 · (x + 5)²
Where x is in centimeters.
First, expand and simplify by algebraic properties:
2400 · x² = 1350 · (x² + 10 · x + 25)
2400 · x² = 1350 · x² + 13500 · x + 33750
1050 · x² - 13500 · x - 33750 = 0
Second, find the roots of quadratic equation by quadratic formula:
x₁ = 15 or x₂ = - 15 / 7
Since lengths are positive variables, then only valid solution is x = 15 cm.
Third, calculate the area covered by the tiles:
A = 2400 · (15 cm)²
A = 540000 cm² (54 m²)
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I deal myself 5 cards from a standard 52-card deck. Find the probabilities of each of the following events: (a) 2 of a kind: (b) 3 of a kind: (c) 2 pair (e.g., 2 eights and 2 queens): (d) a flush (65 cards all of the same suit): (e) a full house (3 of one kind and 2 of another kind): (f) a straight (5 cards in consecutive order).
the probabilities of each of the following events are a) 9.23×10⁻⁶ and b) 0.00144
Since we have given that
Number of cards = 52
a) Probability that we draw 3 aces and 2 kings.
As we know that
Number of aces = 4
Number of kings = 4
Number of cards drawn = 5
So, the probability becomes,
9.23×10⁻⁶
(b) a "full house" (3 cards of one kind, 2 cards of another kind)
Since there are 13 sets of each type and we have to select and 2 kinds of it, so, it becomes
So, it becomes,
Hence, a) 9.23×10⁻⁶ and b) 0.00144
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find the coordinates of point p along the directed line segment from j(-4,12) to k(10,-9) that partitions the segment in a ratio of 3:4
Answer:
Step-by-step explanation:
By graphing the line, it is easy to see that the point (4,10) will partition the line in a ratio of 3:4.
By graphing the line, it is easy to see that the point (4,10) will partition the line in a ratio of 3:4.You could also calculate this by finding the difference in x and y coordinates of the given points, and partitioning those differences in a 3:4 ratio on a number line.
By graphing the line, it is easy to see that the point (4,10) will partition the line in a ratio of 3:4.You could also calculate this by finding the difference in x and y coordinates of the given points, and partitioning those differences in a 3:4 ratio on a number line.In this case,
By graphing the line, it is easy to see that the point (4,10) will partition the line in a ratio of 3:4.You could also calculate this by finding the difference in x and y coordinates of the given points, and partitioning those differences in a 3:4 ratio on a number line.In this case,X coord difference: 12 - (-2) = 14
By graphing the line, it is easy to see that the point (4,10) will partition the line in a ratio of 3:4.You could also calculate this by finding the difference in x and y coordinates of the given points, and partitioning those differences in a 3:4 ratio on a number line.In this case,X coord difference: 12 - (-2) = 14Y coord difference: 18 - 4 = 14
By graphing the line, it is easy to see that the point (4,10) will partition the line in a ratio of 3:4.You could also calculate this by finding the difference in x and y coordinates of the given points, and partitioning those differences in a 3:4 ratio on a number line.In this case,X coord difference: 12 - (-2) = 14Y coord difference: 18 - 4 = 14To partition 14 in a 3:4 ratio, we could use a 6:8 ratio.
By graphing the line, it is easy to see that the point (4,10) will partition the line in a ratio of 3:4.You could also calculate this by finding the difference in x and y coordinates of the given points, and partitioning those differences in a 3:4 ratio on a number line.In this case,X coord difference: 12 - (-2) = 14Y coord difference: 18 - 4 = 14To partition 14 in a 3:4 ratio, we could use a 6:8 ratio.One way to think of it, is that you are "adding" 6 and 8 to the x and y coordinates of the lower coordinate, in the case (-2,4).
By graphing the line, it is easy to see that the point (4,10) will partition the line in a ratio of 3:4.You could also calculate this by finding the difference in x and y coordinates of the given points, and partitioning those differences in a 3:4 ratio on a number line.In this case,X coord difference: 12 - (-2) = 14Y coord difference: 18 - 4 = 14To partition 14 in a 3:4 ratio, we could use a 6:8 ratio.One way to think of it, is that you are "adding" 6 and 8 to the x and y coordinates of the lower coordinate, in the case (-2,4).By "adding" 6 to the x coordinate, and 8 to the y coordinate, we get (4,10), as we showed in the graph.
two sides of an isosceles triangle are 20 and 30. what is the difference of the largest and the smallest possible perimeters?
Two sides of an isosceles triangle are 20 and 30. Then the difference of the largest and the smallest possible perimeters is 10.
Determine the difference of the largest and the smallest possible perimetersThese are the specified parameters:
Two sides of an isosceles triangle are 20 and 30.
The perimeter of the largest isosceles triangle
With a side measurement of 30 feet and a base of 20.
Roving = 30 + 30 + 20
= 80
The perimeter of the smallest isosceles triangle
With a side measurement of 20 feet and a base of 30.
Roving = 20 + 20 + 30
= 70
The difference of the largest and the smallest perimeters
= 80 - 70
= 10
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a 10 foot ladder is leaning against a wall. the ladder will be sturdy if the angle it makes with the wall is between pi/12 and pi/6. how high up the wall can the ladder make contact with the wall
The ladder can reach up to approximately 6.12 feet on the wall while still being sturdy.
To find the height up the wall that the ladder can make contact with, we need to use the Pythagorean theorem. Let's call the height up the wall h and the distance from the wall to the foot of the ladder d. We know that the ladder is 10 feet long, so we can write:
d² + h² = 10²
Next, we use the angle constraints to relate d and h. The angle the ladder makes with the wall is between π/12 and π/6, so we can use the tangent function to write:
tan(π/12) < h/d < tan(π/6)
Solving for h, we have:
d × tan(π/12) < h < d × tan(π/6)
Finally, to find the maximum height the ladder can reach, we need to find the maximum value of d while still satisfying the inequality. We know that d + 10 = h / tan(π/12), so we can substitute and simplify:
d × tan(π/12) < d ×× tan(π/6) + 10 × tan(π/12)
d < 10 × tan(π/6) / (tan(π/12) - tan(π/6))
Since tan(π/12) < tan(π/6), the denominator is positive, so d is maximized when it is as large as possible. Plugging in the values, we have:
d < 10 × tan(π/6) / (tan(π/12) - tan(π/6)) = 10 × 2 / (√3 - 2) ≈ 9.35
Finally, the maximum height the ladder can reach is:
h = d × tan(π/12) < 9.35 × tan(π/12) ≈ 6.12 feet
So the ladder can reach up to approximately 6.12 feet on the wall while still being sturdy.
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A urvey wa given to people who own a certain type of car. What percent of the people urveyed were completely with the car?
Using the percentage concept, it is found that 60.29% of the people surveyed were completely satisfied with the car.
A percentage is the number of desired outcomes, multiplied by 100%, and divided by the number of total outcomes and also defines a number or ratio that can be expressed as a fraction of 100.
To calculate the percentage, we have to divide the value by the total value and then multiply the resultant by 100.
In this problem, researching the internet, it is found that:
A total of 1260 + 650 + 180 = 2090 people were surveyed.
Of those, 1260 were completely satisfied.
Hence:
[tex]P=\frac{1260}{2090} *100 =60.29[/tex]
60.29% of the people surveyed were completely satisfied with the car.
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which expression is equivalent to 6x + 2 - 3x
Answer: 3x+2
Step-by-step explanation:
6x+2-3x
3x+2
2 x minus 7 over 4 = x plus 3 over 3
Answer:
we have
Remember that
Multiply by both sides
Simplify
The formula to solve a quadratic equation of the form is equal to
in this problem we have
so
substitute in the formula
therefore
the answer is the option
x = negative 4 over 3 and x = 5
The slope Ab is 3. The slope of A’B is A’B through the point O
The slope will remain constant, thus it will still be 3.
What is dilation?Resizing an item uses a transition called dilation. Dilation is used to enlarge or contract the items. The result of this transformation is an image with the same shape as the original. However, there is a variation in the shape's size.
Given AB is dilated by a scale factor of 3 to form A'B',
and Point O, which lies on AB, is the center of dilation,
AB has expanded due to the scaling factor, to form A'B'
The image is thus consistent with the preimage according to the laws of dilation.
This suggests that other than the size, the image won't change in any way.
Therefore, the slope will stay the same, the slope of A'B' is 3.
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The complete question is,
AB is dilated by a scale factor of 3 to form A'B'. Point O, which lies on AB , is the center of dilation. The slope of AB is 3. The slope of A'B' is . through point O.
express the following limit as a definite integral: limn→[infinity]∑i=1ni8n9=∫baf(x)dx
The limit of the definite integral will be limn→[infinity]∑i=1ni8n9 = ∫baf(x)dx = ∫abxdx = [x^2/2]ab = (b^2/2 - a^2/2).
We can use the Riemann Sums method to find the definite integral representation of the given limit.
Given: limn→[infinity]∑i=1ni8n9 = ∫baf(x)dx
Step 1: Define the function f(x) = x.
Step 2: Divide the interval [a, b] into n equal subintervals with the width of (b-a)/n. Let xi = a + i(b-a)/n be the right endpoint of the i-th subinterval.
Step 3: Evaluate the value of the sum for n subintervals, ∑i=1ni8n9. This is the Riemann Sum for the function f(x) = x over the interval [a, b].
Step 4: Let n tend to infinity. The limit of the Riemann Sums as n approaches infinity is the definite integral of the function f(x) = x over the interval [a, b].
Thus, limn→[infinity]∑i=1ni8n9 = ∫baf(x)dx = ∫abxdx = [x^2/2]ab = (b^2/2 - a^2/2).
Note: To make the calculation more precise, we need to choose the values of a and b such that the limit of the Riemann Sums will be a definite value. However, in this case, we have not been given any specific values of a and b, so we have used general values for the purpose of demonstration.
Therefore, the limit of the definite integral will be limn→[infinity]∑i=1ni8n9 = ∫baf(x)dx = ∫abxdx = [x^2/2]ab = (b^2/2 - a^2/2).
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Find the least squares approximating line y=zo+zıx for each of the following sets of data points. a. (1, 1), (3, 2), (4, 3), (6,4) b. (2, 4), (4, 3), (7, 2), (8, 1) c. (-1, -1), (0, 1), (1, 2), (2, 4), (3,6) d. (-2, 3), (-1, 1), (0, 0), (1, -2), (2, -4)
The least squares approximating line y=zo + zıx is y = 1.80 - 1.00x.
Least squares is a method used to approximate the line of best fit for a set of data points.
In the first set of data points, (1, 1), (3, 2), (4, 3), (6, 4), the least squares approximating line for this set of data points is y = 0.78 + 0.84x.
For the second set of data points, (2, 4), (4, 3), (7, 2), (8, 1), the process is the same.
The least squares approximating line for this set of data points is y = 2.47 - 0.18x.
The least squares approximating line for the third set of data points, (-1, -1), (0, 1), (1, 2), (2, 4), (3, 6), is y = 0.33 + 1.33x.
The least squares approximating line for the fourth set of data points, (-2, 3), (-1, 1), (0, 0), (1, -2), (2, -4), is y = 1.80 - 1.00x.
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The population of a town is 7,000, and it grows at a rate of 4.6% per year. What will the population be in 10 years?
Answer:
10,975
Step-by-step explanation:
If you multiply 7,000 by 0.046 10 times and added them together, it would be 10,975
Answer:
10975
Step-by-step explanation:
two players a and b play a game rolling a fair die. if a rolls a 1, they immediately roll again, and if it is a 2, then a wins. otherwise, b rolls. if b rolls a 6, they win, otherwise a rolls again and so on. what's the probability player a wins?
The probability player a wins is [tex]\frac{1}{36}[/tex] . Probability is a measure of the likelihood of an event to occur.
Sample space for the given event is :
{(1,1),(1,2),(1,3),(1,4),(1,5),(1,6),(2,1),(2,2),(2,3),(2,4),(2,5),(2,6),(3,1),(3,2),(3,3),(3,4),(3,5),(3,6),(4,1),(4,2),(4,3),(4,4),(4,5),(4,6),(5,1),(5,2),(5,3),(5,4),(5,5),(5,6),(6,1),(6,2),(6,3),(6,4),(6,5),(6,6)}
A sample space is the total numbers of outcomes that can happen with respect to a given single event or a combination of different event, like in this case there were two events both of rolling a dice
Player a wins if he gets (1,1) otherwise he looses. As we can see there is only one choice for the given event to happen. So his probability is less likely to happen that is 1 time in every 36 time.
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I need help with this question please and thank you .
Step 1: [tex]6.3^2+x^2=15.4^2[/tex]
Step 2: [tex]x^2=15.4^2-6.3^2[/tex]
Step 3: [tex]x=\sqrt{15.4^2-(6.3)^2}[/tex]
Step 4: [tex]x=14.05[/tex]
the rate of college enrollment immediately after high school completion was 67
The statement " Rate of college enrollment immediately after completing high school was 67% by 1997" is an example of (a) Descriptive Statistics.
The Descriptive statistics involves the use of measures, such as averages, proportions, and frequencies, to summarize and describe the main features of a set of data.
In this statement, the rate of 67% is a summary statistic that describes the proportion of high school graduates who enrolled in college immediately after completing high school in 1997.
Whereas; the inferential statistics involves making inferences or predictions about a population based on a sample of data.
The statement provides a summary statistic for the rate of college enrollment for a specific year, 1997, but it does not provide any inferences or predictions about the rate of college enrollment for other years or other populations , so it denoted a Descriptive Statistics .
The given question is incomplete , the complete question is
What type of Statistics does the statement "the rate of college enrollment immediately after high school completion was 67" represents ?
(a) Descriptive
(b) Inferential
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Gerad's DVD club charges a $10 annual fee and then $2 per DVD purchased. Karen's DVD club charges a $15 annual fee and then $1 per DVD purchased. After purchasing how many DVDs will Gerad and Karen pay the same amount?
Answer: 5
Step-by-step explanation:
Gerad's DVD club costs = Karen's DVD costs = y
Gerad - y = 2x + 10
Karen - y = x +15
2x + 10 = x + 15
x = 5
y=3.291x 25.232 what is the predictor variable
The predictor variable is the value of x. It is used to predict the value of the response variable, which is the value of y. By using the equation y=3.291x+25.232, the value of y can be calculated when the value of x is known.
The predictor variable is the value of x, which can be used to predict the value of the response variable, which is the value of y. To do this, an equation is used to find the relationship between x and y. In this case, the equation is y=3.291x+25.232. This equation can be used to calculate the value of y when the value of x is known. To use the equation, the value of x is inserted into the equation, and the result is the value of y. For example, if the value of x is 5, then the equation would be y=3.291x+25.232, which equates to y=41.455. This means that when the value of x is 5, the value of y is 41.455. This equation can be used for any value of x to predict the corresponding value of y.
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Solve this problem please (image is attached)
Answer:
the write abs is b
Step-by-step explanation:
5ax+3ax=4ax+12
8ax-4ax=12
4ax=12
ax=12/4
ax=3
x=3/a
97
Use the ALEKS calculator to write as a percentage.
32
Round your answer to the nearest tenth of a percent.
The answer is 0.3% when rounded to the nearest tenth of a percent.
Solving using ALEKS calculator we have:Using the ALEKS calculator, let's divide 32 by 100 and write the result up to 2 decimal places:
= 32
100
= 0.32
Rounding to the nearest tenth of a percent., the result of the division is 0.3%.
(The second decimal place is 2, which is smaller than 5, so after rounding, the first decimal place is not changed).
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what is the graters common divisor of 3,4 and 5
The HCF of 3, 4, and 5 is 1. ∴ The most increased numeral that diverges 3, 4, and 5 is 1.
What is divisor?The dividend is the number that is being divided (in this case, 15), and the divisor is the number that is being divided (in this case, 3). The quotient is the end result of division. A number that divides another number is known as a divisor, sometimes known as a factor (written ). Only positive divisors are typically taken into account for integers, despite the fact that any positive divisor's opposite is obviously also a divisor. a list of the (positive) factors that divide a given number. The number you are dividing by is referred to as the divisor in mathematics. The divisor in the equation 24 6 4 is 6.To learn more about divisor, refer to:
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double a then subtract 7 from the result
The algebraic expression of double a then subtract 7 from the result is 7 - 2a
How to determine the algebraic expressionFrom the question, we have the following parameters that can be used in our computation:
double a then subtract 7 from the result
The "double a" can be represented as 2a
So, we have the following representation
Subtract 2a from 7
subtraction means Minus i.e. 0
So, we have
7 - 2a
Hence, the expression is 7 - 2a
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2x-1=1+x i need help
Answer:
X = 2
2x-1+1=x+1+1
PLEASE HELP MEEEEEE!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
34
Step-by-step explanation:
every corner here is 90⁰,because it says so.
QRP would be 90-56 =34⁰ and the opposite corner is the same,so 34⁰
Answer:
34
Step-by-step explanation:
KRL = QRP, so finding QRP can get us our answer. We were given 56 and 90 because 90 is the degree of a right angle.
A straight line is 180 degrees.
If we subtract 90 and 56 from that 180, we'll find out QRP
180-90=90
90-56=34
Since QRP = 34, that means KRL does also
a researcher chooses 100 random samples for an experiment, and for each sample he obtains a 95% confidence interval for an unknown parameter. approximately how many of those confidence intervals will not contain the value of the unknown parameter?
5 samples will not contain the value of the confidence interval of the unknown parameter. The rest will have the confidence interval.
x% confidence interval implies that the mean of x% is in the interval, also x% in the sample space will have the value of unknown parameter.
Here 95% of confidence interval is present and the sample space is 100. So, 100%- 95% = 5%. Thus only 5% of the sample space will not contain the confidence level of the unknown parameter.
5% of 100 = [tex]\frac{5}{100}[/tex] × [tex]100[/tex] = 0.5 × 100 = 5
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Can anyone factor these equations?
The factoring of the expressions would yeild;
a) (3x + 1) (x + 2)
b) Can not be factored
c) 2[(4x - 5) (x - 3)]
How do we carry out factoring?
Factoring is the process of finding the prime factorization of an integer, which is finding the prime numbers that multiply together to give the original number. There are several methods for factoring including:
It is important to choose the right method based on the type of number being factored and the problem at hand.
The factoring of the quadratic expressions would give;
a) (3x + 1) (x + 2)
b) Can not be factored
c) 2[(4x - 5) (x - 3)]
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11. Write an expression with all fractional
terms that applies four properties of
multiplication to simplify the expression to
one term, Include at least one term being
divided. Show your work and explain how
your expression simplifies.
The statement claims that the phrase may be reduced to the single fractional term 8/5.
What is fundamental expression?Expressions serve as the fundamental construction blocks of Statements since every BASIC word is composed of both expressions and keywords (such as GOTO, TO, and STEP). Therefore, in addition to basic mathematical operations and boolean expressions (such as 1 + 2,) expressions can also include functions, constants, and lvalues (scalar constants or arrays).
Let's use the expression: (2/3) x (4/5) ÷ (1/6)
Using the four properties of multiplication:
Associativity: (2/3) x (4/5) ÷ (1/6) = (2/3) x (4/5) ÷ (1/6)
Commutativity: (2/3) x (4/5) ÷ (1/6) = (4/5) x (2/3) ÷ (1/6)
Distributivity: (4/5) x (2/3) ÷ (1/6) = 4/5 x (2/3 ÷ 1/6) = 4/5 x (12/6) = 4/5 x 2
Identity: 4/5 x 2 = 4/5 x 2 = 8/5
As a result, the equation is reduced to the fraction 8/5.Each fractional term in the equation is streamlined using the characteristics of multiplication until only a fractional term is left.
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