Answer:all lines are straight
Step-by-step explanation:
Solve the separable differential equation for u Du/dt=e^3u+10t Use the following initial condition: u(0)= 7.u = ___
The solution to the given separable differential equation for u, with the initial condition u(0) = 7.
To solve the separable differential equation for u, we start by rearranging the equation f as:
(1/u) du/dt = e^(3u)/u + 10t/u
We can now integrate both sides of the equation with respect to t and u, separately. Starting with the left-hand side, we have:
∫(1/u) du = ln|u| + C1
where C1 is the constant of integration. For the right-hand side, we can use u-substitution by letting v = 3u, dv/du = 3, and du/dv = 1/3u. Substituting these values into the equation f and simplifying, we have:
(1/3) ∫e^v dv = (1/3) e^v + C2
where C2 is another constant of integration. Substituting v = 3u back into the equation and combining the constants of integration, we get:
ln|u| = e^(3u)/3 + 10t/3 + C
where C = C1 + C2. To solve for u, we exponentiate both sides of the equation:
|u| = e^(e^(3u)/3 + 10t/3 + C)
We can drop the absolute value since u(0) = 7 > 0, and simplify the exponential expression by using the properties of exponents:
u = e^(e^(3u)/3) * e^(10t/3 + C)
Finally, we use the initial condition u(0) = 7 to solve for C:
7 = e^(e^(3(7))/3) * e^(10(0)/3 + C)
7 = e^(e^21/3) * e^C
ln(7/e^(e^21/3)) = C
Substituting this value of C back into the equation for u, we get:
u = e^(e^(3u)/3) * e^(10t/3 + ln(7/e^(e^21/3)))
This is the solution to the given separable differential equation for u, with the initial condition u(0) = 7.
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Help plz ASAP helppppp
Answer:
Same-side interior angles
Step-by-step explanation:
due now!!!!!!!!!!!!!!!!!!!!!!!
Answer:
the answer is C
go along the x and in ue case it is going along the left which means the linear will be negative so thats x-2
and in cases like going downwards the y the linear value will also be negative so thats y-5
so its (x-2)(y-5)
A bowl contains 10 jellybeans (four red, one blue and five white). If you pick three jellybeans from the bowl at random and without replacement, what is the probability that exactly two will be red
It is 1/10 probable that two consecutive jellybeans will be red.
What is probability?Simply put, the probability is the probability that something will occur. When we don't know how an event will turn out, we can discuss the probability or likelihood of several outcomes.
Biostatistics is the analysis of events that match a probability distribution.
So, the likelihood of receiving a red jellybean in two of the three trials will help you determine the likelihood of two jellybeans being red.
Keep in mind that you will require a likelihood of not turning red in one try.
1 - 4/10 (getting a red)
2 - 3/9 (getting a red)
3 - 6/8 (not getting a red)
The solution remains the same regardless of the order:
1 - 6/10 (not getting a red)
2 - 4/9 (getting a red)
3 - 3/8 (getting a red)
Add these up to calculate the likelihood:
4/10 x 3/9 x 6/8 = 1/10
Therefore, it is 1/10 probable that two consecutive jellybeans will be red.
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Solve x² + 8x - 3= 0 using the completing-the-square method.
A.x=4+√3
B.x= -4+√3
C.x=4+√19
D.x=-4+√19
By using the completing the square method, the value of the equation x² + 8x - 3 = 0 is x = -4 + √19
Completing the square method
Completing the square refers the method that is used for converting a quadratic expression of the form ax² + bx + c to the vertex form a(x - h)² + k where h and k refers the constants.
Given,
Here we have the expression x² + 8x - 3= 0
Now, we have to use the completing the square method to solve this one.
While we looking through the given equation,
=> x² + 8x - 3= 0
The coefficient of the x is 8, so now we divide this by 2 :
=> 8 ÷ 2 = 4
and then we square it,
=> (4)² = 16.
So we add and subtract 16 on the equation, then we get,
=> x² + 8x + 16 - 16 - 3
=> x² + 8x + 16 - 19
We know that, x² + 8x + 16 = (x + 4)², then the given equation is written as,
=> (x + 4)² - 19 = 0
=> (x + 4)² = 19
=> x + 4 = √19
=> x = -4 + √19
Therefore, the value of x is -4 + √19.
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Carlos bought 24 pounds of flour for $11 How many pounds of flour did he get per dollar?
Answer:
2.2 or 2.18
Step-by-step explanation:
Answer: .48 cents per pound
Step-by-step explanation: divide 11 by 24.
Pls solve with all steps
The results of the expressions involving logarithms are listed below:
Case 1: 1 / 2
Case 2:
Subcase a: 0
Subcase b: 11 / 2
Subcase c: - 11 / 2
How to simplify and evaluate expressions involving logarithmsIn this problem we have a case of an expression involving logarithms that must be simplified and three cases of expressions involving logarithms that must be evaluated. Each case can be solved by means of the following logarithm properties:
㏒ₐ (b · c) = ㏒ₐ b + ㏒ₐ c
㏒ₐ (b / c) = ㏒ₐ b - ㏒ₐ c
㏒ₐ cᵇ = b · ㏒ₐ c
Now we proceed to determine the result of each case:
Case 1
㏒ ∛8 / ㏒ 4
(1 / 3) · ㏒ 8 / ㏒ 2²
(1 / 3) · ㏒ 2³ / (2 · ㏒ 2)
㏒ 2 / (2 · ㏒ 2)
1 / 2
Case 2:
Subcase a
㏒ [b / (100 · a · c)]
㏒ b - ㏒ (100 · a · c)
㏒ b - ㏒ 100 - ㏒ a - ㏒ c
3 - 2 - 2 + 1
0
Subcase b
㏒√[(a³ · b) / c²]
(1 / 2) · ㏒ [(a³ · b) / c²]
(1 / 2) · ㏒ (a³ · b) - (1 / 2) · ㏒ c²
(1 / 2) · ㏒ a³ + (1 / 2) · ㏒ b - ㏒ c
(3 / 2) · ㏒ a + (1 / 2) · ㏒ b - ㏒ c
(3 / 2) · 2 + (1 / 2) · 3 + 1
3 + 3 / 2 + 1
11 / 2
Subcase c
㏒ [(2 · a · √b) / (5 · c)]⁻¹
- ㏒ [(2 · a · √b) / (5 · c)]
- ㏒ (2 · a · √b) + ㏒ (5 · c)
- ㏒ 2 - ㏒ a - ㏒ √b + ㏒ 5 + ㏒ c
- ㏒ (2 · 5) - ㏒ a - (1 / 2) · ㏒ b + ㏒ c
- ㏒ 10 - ㏒ a - (1 / 2) · ㏒ b + ㏒ c
- 1 - 2 - (1 / 2) · 3 - 1
- 4 - 3 / 2
- 11 / 2
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a movie rental service charges a $15 fee plus $1.50 per rental. suppose you have $40 to spend. how many movies can you rent
Answer:
16
Step-by-step explanation:
y = mx+b, where y is cost x is # of movies, m is $ per rental and b is the flat charge.
y = 1.50x+15
40 = 1.50x+15
25 = 1.50x
16.666... = x
You can rent about 16 movies
Hope that helps
Answer:
40 = 1.50x+15
25=1.50x
x=16
16 movies
Step-by-step explanation:
MULTIPLE CHOICE QUESTION
Time to play Two Truths and a Lie! Select
the lie from the statements below.
Your employer can match your investment contribution in a ROTH or Traditional IRA
You can purchase investments such as low cost index funds in an IRA or most 401k's
Your employer can match your investment contribution in a ROTH 401k or Traditional 401k
Answer:
The lie from the statements below is:
"Your employer can match your investment contribution in a ROTH IRA or Traditional IRA."
While it is true that you can contribute to both a Roth IRA and Traditional IRA and purchase investments such as low-cost index funds, employers cannot match your investment contributions in an IRA. However, employers can match your investment contributions in a Roth 401k or Traditional 401k, which are retirement accounts offered by employers.
Results of a study were F (3, 12) = 2.72. Which of the following is the correct statistical decision?
Group of answer choices
Reject the null hypothesis, there was a statistically significant mean difference.
Reject the null hypothesis, there was not a statistically significant mean difference.
Fail to reject the null hypothesis, there was a statistically significant mean difference.
Fail to reject the null hypothesis, there was not a statistically significant mean difference.
How do you find the P-value?
The p-value can be found with the F-distribution table or statistical software. If the p-value is less than or equal to α, then answer is option (a),If the p-value is greater than α, then answer is option (b).
To determine the correct statistical decision based on the given F-statistic, F (3, 12) = 2.72, we need additional information such as the significance level (α) of the hypothesis test. The significance level is a predetermined threshold that is used to assess the statistical significance of the results.
The correct decision depends on whether the calculated p-value, which quantifies the strength of evidence against the null hypothesis, is less than or equal to the significance level (α).
To find the p-value, you would need the F-distribution table or statistical software.
Once you have the p-value, you can compare it to the significance level (α) to make a decision:
If the p-value is less than or equal to α, you would reject the null hypothesis, indicating a statistically significant mean difference.
If the p-value is greater than α, you would fail to reject the null hypothesis, suggesting that there is not a statistically significant mean difference.
Therefore, without the significance level or the p-value, it is not possible to determine the correct statistical decision.
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16. Find the value of x to the nearest tenth (2 points)
work:
30side
64degree angel
90 degree angel
X is a side
X=
The value of x to the nearest tenth is approximately 61.5. In this case, given the 64-degree angle and the adjacent side (30), you can use the tangent function to find the value of x, which is the side opposite to the 64-degree angle.
Step 1: Identify the given information
Adjacent side = 30
Angle = 64 degrees
Step 2: Apply the tangent function
tan(angle) = opposite side / adjacent side
Step 3: Plug in the given information
tan(64 degrees) = x / 30
Step 4: Solve for x
x = 30 * tan(64 degrees)
Step 5: Calculate the value of x (round to the nearest tenth)
x ≈ 30 * 2.050 = 61.5
So, the value of x to the nearest tenth is approximately 61.5.
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Find the scalar and vector projections of b onto a. a = i + 4j + 5k, b = 9i - k scalar projection of b onto a vector projection of b onto a
The scalar projection of b onto a is (sqrt(82) * 85) / sqrt(42), and the vector projection of b onto a is (sqrt(82) * 85 / 82) * (i + 4j + 5k) / sqrt(42).
To find the scalar and vector projections of b onto a, we can use the following formulas:
Scalar Projection: proj(a, b) = |b| * cos(theta) = |b| * (a · b) / |a|
Vector Projection: proj(a, b) = (|b| * cos(theta)) * (a / |a|)
Given:
a = i + 4j + 5k
b = 9i - k
First, let's calculate the scalar projection of b onto a:
|a| = sqrt(i^2 + 4j^2 + 5k^2) = sqrt(1 + 16 + 25) = sqrt(42)
(a · b) = (i + 4j + 5k) · (9i - k) = 9i^2 - i + 36j^2 - 4j + 45k^2 - 5k = 9 - i + 36 - 4 + 45 - 5 = 85
Scalar Projection: proj(a, b) = (|b| * (a · b)) / |a| = (sqrt(9^2 + (-1)^2) * 85) / sqrt(42) = (sqrt(82) * 85) / sqrt(42)
Now, let's calculate the vector projection of b onto a:
Vector Projection: proj(a, b) = (|b| * cos(theta)) * (a / |a|) = (sqrt(9^2 + (-1)^2) * cos(theta)) * (i + 4j + 5k) / sqrt(42)
To find cos(theta), we can use the formula cos(theta) = (a · b) / (|a| * |b|):
cos(theta) = (a · b) / (|a| * |b|) = 85 / (sqrt(9^2 + (-1)^2) * sqrt(9^2 + (-1)^2)) = 85 / (sqrt(82) * sqrt(82)) = 85 / 82
Vector Projection: proj(a, b) = (sqrt(82) * 85 / 82) * (i + 4j + 5k) / sqrt(42)
Therefore, the scalar projection of b onto a is (sqrt(82) * 85) / sqrt(42), and the vector projection of b onto a is (sqrt(82) * 85 / 82) * (i + 4j + 5k) / sqrt(42).
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How is this supposed to be done lol
Answer:
i think that is c but if I'm wrong deduct points
hey! please help i’ll give brainliest
Answer:
False.
Step-by-step explanation:
It says Jacob walked to the store to get milk. The use of the word walked means it was past tense. He had already walked to the store.
Six numbers are shown.
1.25 , -1.5 , -0.75 , -3/4 , 26/8 , 5/4 .
Plot each number on the number line.
According to the information, we can infer that the correct order for these number is -1.5, -0.75, -0.75, 1.25, 3.25.
How to organize the numbers in the numberline?To plot the numbers on a number line, we need to arrange them in increasing order. Here is the organized list of the numbers:
-1.5, -0.75, -0.75, 1.25, 3.25On the number line, we can mark -1.5 first and then move to the right to mark -0.75 twice (since it appears twice in the list), then 1.25, and finally 3.25 . On the number line, we can see that -1.5 is the smallest number and 3.25 is the largest number.
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It is estimated that the world's population is growing at a rate of 1.14% per year. On January 1st 2014 the population was 7.23 billion. (a) Find the expected population on January 1st 2020. (b) Find the year when the population is expected to reach 10 billion.
Answer:
\(f(t) = 7.23( {1.0114}^{t} )\)
t = 0 represents January 1, 2014
(a)
\(f(6) = 7.23( {1.0114}^{6} ) = 7.739\)
The population of the world is expected to be about 7.739 billion people on January 1, 2020.
(b)
\(7.23( {1.0114}^{t} ) = 10\)
\(t = about \: 28.61 \: years\)
The population of the world is expected to be 10 billion people in about 28.61 years after January 1, 2014 (sometime in August 2042).
PLEASE HELP
What Is The Rule For Multiplying or Dividing Integers with Same Sign
9. Given rectangle DEFG below, select all the true statements.
SHOW WORK!!
The true statements in the rectangle DEFG are FHE = 60 and FEH = 60
Selecting all the true statements in the rectangle DEFGFrom the question, we have the following parameters that can be used in our computation:
The rectangle DEFG
On the rectangle DEFG, we have
1.5x + 8 = 3x + 2
Evaluate the like terms
So, we have
1.5x = 6
This gives
x = 4
Also, we have the following angle measures
FHE = 180 - 120
FHE = 60
Then, we have
FEH = FHE = 60
Hence, the the true statements in the rectangle DEFG are FHE = 60 and FEH = 60
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Please help me\(x^{2} +xx^{5}\)
Answer:
x**2 + x**6
Step-by-step explanation:
You know that the number of pepperoni pizzas is 4 less than twice the number of cheese pizzzas. You also know that the number of combo pizzas is 8 less than the number of cheese pizzas. Finally, you know that the total number of pizzas ordered is 110.
Answer: See explanation
Step-by-step explanation:
Let the cheese pizzas be denoted by x.
Since pepperoni pizzas is 4 less than twice the number of cheese pizzzas. This will be:
= (2 × x) - 4.
= 2x - 4
Since combo pizzas is 8 less than the number of cheese pizzas. This will be:
= x - 8
Then we add all the pizzas and equate to 110. This will be:
x + (x - 8) + (2x - 4) = 110
x + x - 8 + 2x - 4 = 110
4x - 12 = 110
4x = 110 + 12
4x = 122
x = 122/4
x = 30.5
Therefore, cheese pizza = 30.5
Combo pizza = x - 8 = 30.5 - 8 = 22.5
Pepperoni pizza = 2x - 4 = 2(30.5) - 4 = 57
\A cone is inverted and filled with water to 3/4 of its height. What percent of the cone's volume is filled with water
Water fills the cone to a capacity of 75%. 0.75 is the decimal equivalent of 75%.
How the Percentage is calculated?Find the whole amount of what you're looking for to get a percentage of.
To calculate the percentage, divide the number.
Add 100 to the value.
A % is a quantity or ratio that, in mathematics, represents a portion of one hundred. It's frequently represented by the sign "%" or just "percent" or "pct." For instance, 35% is equal to the fraction 0.35 or the decimal 0.35.
The value of the number out of 100 is the proportion of the number. For instance, there are 26 females and 24 boys in a class. As a result, 52 out of 100 students in the class are females, or 52% of the class.
The Latin word "per centum," which meaning "by the hundred," was the source of the English word "percentage." Percentages.
According to our question-
volume of water = (3/4) * (1/3)(a)(h)
volume of water = (3/4) * volume of cone
volume of water = 75% of the volume of cone
75% of the cone's volume is filled with water.
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The table below shows the low temperature in a town each day for four days. Which of the following lists the temperatures in order
from least to greatest?
Answer: 1,-3,5,-8
Step-by-step explanation: I have the same questions
A membership costs for $40 for each month.
The cost of the membership for 12 months will be $
If £2000 is placed into a bank account that pays 3% compound interest per yea
how much will be in the account after 2 years?
Answer:
$2120
Step-by-step explanation:
method:
3% x $2000 = 60
100%
$60 per year = $120 per year
Ans: $2120 will be in the account
Which statement about the sketch below is true?
The similar triangles help to show that the slope of the line is -2.
The similar triangles help to show that the slope of the line is 2.
The similar triangles help to show that the slope of the line is
1/2.
The similar triangles help to show that the slope of the line is -1/2.
Answer:
A.) The similar triangle help to show that the slope of the line is -2
Step-by-step explanation:
I'm so sorry this is late, but if it's on odyssey, I can guarantee this is right
Determine whether the statement is true or false. The equation y' = x + y + 1 is separable.
The equation y' = x + y + 1 is not seperable. Therefore the statement is false.
What do you mean by an ordinary differential equation?In mathematics, an ordinary differential equation (also known as an ODE) is an equation made up of one or more functions of a single independent variable and its derivatives. A function having one or more derivatives is a component of a differential equation.
Where are ordinary differential equations used?Common differential equations are used in everyday life to compute the flow of electricity, the motion of an item back and forth like a pendulum, and to illustrate the principles of thermodynamics. Additionally, in medical terminology, they are employed to graphically monitor the progression of illnesses.
If you can express a differential equation as y′=f(x)g(y), where f(x) is only a function of x and g(y) is only a function of y, then the problem is separable. Here, it is not the situation.
But we are not limited to solving separable differential equations. We frequently use integrating factors to solve linear first-order differential equations, such as this one. Using the product rule, multiply your differential equation by an integrating factor—in this example, e—and you get (eyy)′=eyy+eyy′=eyx,
which you may integrate to get your differential equation's solution. Finding integrating factors for generic linear first-order differential equations of the type y′+p(x)y=q may be done in a general way (x).
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A small auditorium has 20 seats in the first row and each successive row contains 2
additional seats. If there are 12 rows in the auditorium, how many seats are in this
auditorium?
O 384
O 372
O 330
O 264
Answer:
330.
Step-by-step explanation:
Count all the way up. The first row is 20, then goes, 22,24,26,28,30,32,34,36,38,40. These are the number of seats for all 12 rows, since we added 2 each row. Add them all together including 20 to get 330 seats. The whole auditorium has 330 seats.
Hope this helps!
As per arithmetic Progression, there are 372 seats in the given auditorium.
What is an arithmetic progression?"Arithmetic Progression is a sequence of numbers in order, in which the difference between any two consecutive numbers is a constant value."
Given, the auditorium has 20 seats in the first row.
Then, each successive row contains 2.
We can assume it as an arithmetic progression.
Here, the first term(a) is 20.
The common difference(d) is 2.
Total number of terms(n) is 12.
Therefore, the sum of all the terms is
\(= \frac{n}{2}[2a + (n-1)d]\\= \frac{12}{2}[2(20) + (12-1)2]\\= 6[40+(11)2)]\\= 6(40+22)\\= 6(62)\\= 372\)
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the successor of the set a is the set a ∪ {a}. identify the successor of the given set. {1, 2, 3}
In the successor set, we add a new element to the original set, which is the set itself. This is denoted by the union symbol (∪) followed by the element we are adding, {1, 2, 3}.
The resulting set is {1, 2, 3, {1, 2, 3}}, indicating that the successor set includes the original set as well as the new element.
Essentially, the successor of a set adds the set itself as a new element to the original set.
This concept is often used in mathematical set theory and has applications in various branches of mathematics and computer science.
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Suppose, instead of X, a regression was performed on the explanatory variable Z=2*X. The new value ofwould be ____ times as large as the original.O 02O 50O 1O 200O 50
Imagine running a regression on the explanatory variable Z=2*X instead of X. The new value of would be 1/2 (1/n) times as large as the original.
When an explanatory variable is altered or perceived to have changed (for instance, the amount of caffeine drank), a response variable is what changes (e.g., reaction times). With other concepts used in research, the terms "explanatory variable" and "response variable" are sometimes used interchangeably. A research scientist variable is an influential factor when it comes to an experiment. It acts as a gauge for the transformation the response variable underwent. It serves as a barometer for the change the response variable underwent. Explanatory variables are commonly referred to as predictor variables or independent variables. The students also want to utilize height to gauge age. The explanatory variable in this instance is height, while the response variable is age.
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Suppose that a regression was performed on the explanatory variable Z = 2*X instead of X. The new value of the coefficient would be half as large as the original, or 0.5 times the original coefficient.
If the explanatory variable Z is a multiple of X in a regression, such as Z=2*X, the coefficient of X will be divided by the constant multiple (2). Therefore, if the original coefficient for X was 1, the new coefficient for Z will be 0.5. Suppose that a regression was performed on the explanatory variable Z = 2*X instead of X. The new value of the coefficient would be half as large as the original, or 0.5 times the original coefficient. This is because when the explanatory variable is multiplied by a constant (in this case, 2), the coefficient of the variable in the regression equation is divided by the same constant.
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Discrimination in the workplace: A large multinational corporation is accused of discriminatory hiring practices. tending to hire male employees who are 25 to 30 years old. After management agree to offer a series of human resource trainings at their various locations, in-house staff examine and analyze their most current hiring data. They look at a sample of 2.000 new employees and find that a higher proportion of female employees have been recently hired, and the difference is statistically significant. Which of the following best describes how we should interpret these results? O With a large sample, statistically significant results suggest a large improvement in perceived discriminatory hiring practices. With a large sample, statistically significant results may actually indicate a small improvement in perceived discriminatory hiring practices. O Regardless of the sample size, a statistically significant result means there is a meaningful difference in hiring practices.
Therefore, with a large sample, statistically significant results may actually indicate a small improvement in perceived discriminatory hiring practices.
Out of the given options, the best description of how we should interpret these results is as follows: With a large sample, statistically significant results may actually indicate a small improvement in perceived discriminatory hiring practices .Discrimination refers to the biased or unfair treatment of someone or a group of people based on certain attributes such as race, gender, sexual orientation, religion, etc. Discrimination in the workplace can occur in various forms such as hiring bias, unequal pay, demotion, lack of promotion, and wrongful termination. It is crucial to ensure that all employees are treated fairly and equally in the workplace.What does the scenario say?In the given scenario, a large multinational corporation has been accused of discriminatory hiring practices, specifically tending to hire male employees who are 25 to 30 years old. After management agrees to offer a series of human resource trainings at their various locations, the in-house staff analyze their most current hiring data. They look at a sample of 2,000 new employees and find that a higher proportion of female employees have been recently hired, and the difference is statistically significant.What do we infer from this?With a large sample size, statistically significant results may actually indicate a small improvement in perceived discriminatory hiring practices. Statistically significant results show that the difference between the proportion of male and female employees hired is not due to chance. It means that the company has made some progress in reducing discriminatory hiring practices. However, it doesn't necessarily mean that there is no discrimination at all or that the issue has been completely resolved.
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