ILL MARK U BRAINLIEST!!!!

Para encontrar el número de niños que se han inscrito solamente en clases de natación, podemos utilizar la fórmula de la diferencia simétrica de conjuntos:

|A Δ B| = |A| + |B| - 2|A ∩ B|

Donde A representa el conjunto de niños inscritos en natación, B representa el conjunto de niños inscritos en básquet y A ∩ B representa el conjunto de niños que se han inscrito en ambos deportes.

Sustituyendo los valores conocidos, obtenemos:

|A Δ B| = 29 + 32 - 2(15)

|A Δ B| = 31

Por lo tanto, 31 niños se han inscrito solamente en clases de natación.

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14 children have signed up for swimming lessons only.

To calculate the number of kids who have registered exclusively for swimming classes, it is necessary to deduct the total number of kids who have enrolled in both swimming and basketball classes from the overall number of kids registered for swimming lessons

Total enrolled in swimming lessons = 29 children

Total enrolled in basketball classes = 32 children

Number of children enrolled in both swimming and basketball = 15 boys

To find the number of children enrolled in swimming lessons only:

29 children (total in swimming lessons) - 15 boys (enrolled in both swimming and basketball) = 14 children

Therefore, 14 children have signed up for swimming lessons only.

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The question in English:

In a summer club, 29 children have enrolled in swimming class and 32 in classes

basketball. If 15 boys have signed up for both sports, how many have signed up?

enrolled in swimming lessons only?

Answer:

I believe its B

Step-by-step explanation:

The number of middle school students prefer the Documentaries television genre is108.

To get that, we need to multiply the total number of students by the correspondent percentage (in decimal form).

We know that there are 450 students, and 24%  (just add the other percentages, and 24% is the amount missing to reach 100%) like the documentaries.

That percentage in decimal form is 24%/100% = 0.24

Then the estimation will be:

450*0.24 = 108

So that is the correct answer.

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Answer:

B.16 square meters

Step-by-step explanation:

The frequency of A allele after a single generation of mutation can be found as follows: Frequency of A allele after a single generationp(A) = p(A) x (1 - m) + q(a) x m

where,
m = mutation rate = 10^-6p(A) = frequency of A allele in initial generation = 0.75q(a) = frequency of a allele in initial generation = 0.25Thus,p(A) = 0.75 x (1 - 10^-6) + 0.25 x 10^-6 = 0.74999925

And the frequency of a allele will beq(a) = 1 - p(A) = 1 - 0.74999925 = 0.25000075

Therefore, the frequency of the A and a alleles in the next generation will beA: 0.74999925 and a: 0.25000075.

This is option D.

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If 10 donuts are sold. Then the expected value of the number of sprinkles will be 5.

Binomial distributions consist of n independent Bernoulli trials.

The expected value will be given as

E(X) = np

At Everyday Donuts, 3 of the last 6 donuts sold had sprinkles. Considering this data.

If 10 donuts are sold.

Then the number of the sprinkles will be

The probability will be

p = 3/6

p = 0.5

n = 10

Then the expected value of the number of the sprinkles will be

E(x) = 10 x 0.5

E(x) = 5

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Using the z-distribution, it is found that since the test statistic is less than the critical value for the right-tailed test, it is found that it can be concluded that the proportion of the population in favor of candidate A is not significantly greater than 0.75.

At the null hypothesis, it is tested if the proportion is not significantly more than 75%, that is:

\(H_0: p \leq 0.75\)

At the alternative hypothesis, it is tested if the proportion is significantly more than 75%, that is:

\(H_1: p > 0.75\)

The test statistic is given by:

\(z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}\)

In which:

In the sample, 80 out of 100 people favored candidate A, hence, the parameters are:

\(n = 100, \overline{p} = \frac{80}{100} = 0.8, p = 0.75\)

Hence:

\(z = \frac{\overline{p} - p}{\sqrt{\frac{p(1-p)}{n}}}\)

\(z = \frac{0.8 - 0.75}{\sqrt{\frac{0.75(0.25)}{100}}}\)

\(z = 1.15\)

The critical value for a right-tailed test, as we are testing if the proportion is greater than a value, is \(z^{\ast} = 1.645\).

Since the test statistic is less than the critical value for the right-tailed test, it is found that it can be concluded that the proportion of the population in favor of candidate A is not significantly greater than 0.75.

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If 19:00<=x<=19:30 and 4:00<=y<=6:00

Total time difference

\(\\ \sf\longmapsto 6:00-19:30=10:30\)

Probability=

\(\\ \sf\longmapsto P(E)=\dfrac{1}{30}\)

The alternative hypothesis states that the difference is greater than zero.

What Are Tails in a Hypothesis Test?

First, we need to cover some background material to understand the tails in a test. Typically, hypothesis tests take all of the sample data and convert it to a single value, which is known as a test statistic. You’re probably already familiar with some test statistics.

For example, t-tests calculate t-values. F-tests, such as ANOVA, generate F-values. The chi-square test of independence and some distribution tests produce chi-square values. All of these values are test statistics.

Keep in mind that this t-distribution assumes that the null hypothesis is correct for the population. Consequently, the peak (most likely value) of the distribution occurs at t=0, which represents the null hypothesis in a t-test. Typically, the null hypothesis states that there is no effect. As t-values move further away from zero, it represents larger effect sizes. When the null hypothesis is true for the population, obtaining samples that exhibit a large apparent effect becomes less likely, which is why the probabilities taper off for t-values further from zero.

Hence the answer is the alternative hypothesis states that the difference is greater than zero.

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The height of the tree is 2.06 meters to the nearest hundredth of a meter.

To find the height of the tree, we can use similar triangles and the given information. The terms we'll use are Brody's height, tree's shadow, Brody's shadow, and the height of the tree.

1. Brody's height: 1.75 meters

2. Tree's shadow: 27.95 meters

3. Brody's shadow: 23.7 meters away from the tree

Now, let's set up the proportion using similar triangles:

(Brody's height) / (Brody's shadow) = (Height of the tree) / (Tree's shadow)

1.75 / (23.7) = (Height of the tree) / (27.95)

To solve for the height of the tree, cross-multiply and divide:

1.75 * 27.95 = 23.7 * (Height of the tree)

48.9125 = 23.7 * (Height of the tree)

Height of the tree = 48.9125 / 23.7

Height of the tree ≈ 2.06 meters

So, the height of the tree is approximately 2.06 meters to the nearest hundredth of a meter.

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All  the following problems are data mining tasks.

(a) Retrieving students' records from a relational table with a grade = "A" involves extracting specific data from a database, which is a fundamental task in data mining.

(b) Checking correlations between attributes like last name and address in a table of students' information involves analyzing the relationship between different variables, which is a data mining task.

(c) Finding documents containing specific keywords ("data mining") from a text database involves searching for patterns in unstructured data, which is a typical data mining task.

(d) Dividing a text database into groups of near-duplicate or similar documents requires identifying similarities or patterns within the data, which is a common task in data mining, such as clustering or classification.

(e) Predicting the trend of a stock based on historical stock data and other attributes involves analyzing patterns and relationships within the data, making it a predictive data mining task.

(f) Example: Analyzing customer purchase history to identify patterns and associations between products and customer preferences, enabling personalized product recommendations and targeted marketing campaigns.

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Answer:

Step-by-step explanation:

Answer: 6

Step-by-step explanation:

38+x= 13+5+8+x

38+x=26+x

38-26=2x

12=2x

x=6

The value of ∠ F L H  is 3x-6°

∠FLG and ∠FLH are adjacent angles with L being the common vertex  and both the angles form the ∠HLG

As ∠FLG is given as 14x + 5° and  ∠ H L G is given as 17 x − 1 °

We need to find the value of ∠ F L H

We can write that ∠FLG +∠FLH = ∠ H L G

by putting the values given

14 x + 5 ° + ∠ F L H  = 17 x − 1 °

∠ F L H = 17x-1 - (14x + 50

Here we got a linear equation in one variable and by solving the equation we will get the value of ∠ F L H

∠ F L H = 17x - 1 - 14x -5

∠ F L H  = 3x-6

Hence, the value of ∠ F L H  is 3x-6°

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As similarity theorem, the value of x that will make the triangles similar by SSS similarity theorem is 77.

Similarity theorem:

In math, similarity theorem refers the line segment splits two sides of a triangle into proportional segments if and only if the segment is parallel to the triangle's third side.

Given,

Here we need to find the t value of will make the triangles similar by the similarity theorem.

For example, we are told that the 2 triangles are similar by SSS theorem.

Here we know that, SSS means Side - Side -Side and it is a congruence theorem which states that the 3 corresponding sides of two triangles have same ratio, then we can say that the two triangles are congruent by SSS theorem

Therefore, in the triangles ,applying the SSS postulate gives;

=> x/35 = 44/20

Then by applying the multiplication property of equality, let us multiply both sides by 35 to get;

=> x = (44 * 35)/20

When we simplify this one then we get,

=> x = 77

Therefore, the value of x is 77.

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Using the probability concept, the proportion of times do we expect the practitioner to guess the correct hand is of 0.44.

The probability of an event in an experiment is calculated as the number of desired outcomes of the experiment divided by the number of total outcomes of the experiment.

The probability can be interpreted as the proportion of times that we expect a trial to happen.

In the context of this problem, this probability is of 44%, as stated for Emily's model, that is, out of 100 trials, the correct answer was obtained in 44 of them, hence the proportion of times do we expect the practitioner to guess the correct hand is of 0.44.

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The value of length ED in the cuboid is determined as 8.7 cm.

The value of length ED is calculated as follows;

The line connecting point E to point D is a diagonal line, and the magnitude is calculated by applying Pythagoras theorem as follows;

ED² = AE² + AD²

From the diagram, AE = CG = 8.5 cm,

also, length AD = BC = 2 cm

The value of length ED is calculated as;

ED² = 8.5² + 2²

ED = √ ( 8.5² + 2²)

ED = 8.7 cm

Thus, the length of ED is determined by applying Pythagoras theorem as shown above.

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Check the picture below.

Perform orthogonal transformation to eliminate cross-product terms in quadratic form.

Perform an orthogonal transformation to convert the quadratic form into one with no cross-product terms.

Given the quadratic form x'Ax, determine if it is positive definite and if matrix A is idempotent.

Explain why the product of a random variable y and a symmetric idempotent matrix M is not a chi-square variable.

State an assumption needed for y'Ay and y'By to be independent, where y is a random variable and A and B are idempotent matrices.

Show that the quadratic form X'AX follows a chi-square distribution with degrees of freedom (r,0) using the properties of idempotent matrices and the distribution of a vector Z.

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On solving the provided question, we can say that - the valuye os the complementary angle is 83.0000000004.

When two angles add up to 90 degrees, they are said to be complimentary. When two angles add up to 180 degrees, they are said to be subservient. . When the sum of two angles equals 90 degrees, they are called complementary angles. For example, 30 and 60 degrees are supplementary angles. A supplementary angle is two angles that add up to 180 degrees, and a supplementary angle is two angles that add up to 90 degrees. of 30 and 60 degrees are supplementary. A supplementary angle is two angles combined to make a 180 degree angle, while a supplemental angle is two angles combined to make a 90 degree angle. Two angles are referred to as complimentary if their total is 90 degrees. Alternatively said, a right angle is created by the complementary angles (90 degrees).

here we have

(12x + 7) = 90

12x = 83

x= 6.9166666667

12x = 83.0000000004

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The steps for completing a W-4 form include the following:

A W-4 form can be defined as an internal revenue service (IRS) tax form which is used to indicate the correct federal income tax that should be withheld from an employee's paycheck in the United States of America.

After an employee fills a W-4 form, it must be submitted to the internal revenue service (IRS) by the employer.

Basically, the steps for completing a W-4 form include the following:

Step 1: You should provide your information such as name, address, Social Security Number (SSN).

Step 2: You should indicate that Addison has one job only.

Step 3: You should indicate whether or not Addison has dependents.

Step 4: You should state that there is no need to have any additional taxes withheld from Addison's paycheck.

Step 5: You should provide a signature and date.

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Step-by-step explanation:

4.88 / 8

Hope that helps!

Answer:

$0.61

Step-by-step explanation:

hope this helps you I got it right on my quiz.

Given the function g(x) = 2x-4, the value of g(2) is 0

A function is a process or a relation that associates each element x of a set X, the domain of the function, to a single element y of another set Y (possibly the same set), the codomain of the function

Given the function g(x) =2x-4

In order to calculate g(2), we are going to substitute x = 2 into the function g(x)=2x-4:

Since g(x) =2x-4

g(2) =2(2) - 4 = 4-4 = 0

Therefore, given that g(x) =2x-4, the value of g(2) = 0

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Answer:

C

Step-by-step explanation:

It's C because i majored in mathmatics in college and ended with a A

Therefore, Two slices of bacon had 96 less calories than three slices of roasted turkey.

a formula that illustrates the connection between two expressions on either side of a sign. It usually only has one variable and an equal sign. like this: 2x – 4 = 2.

Here,

One piece of bacon has 42 calories in it.

There are 60 calories in 1 slice of turkey.

2 slices of bacon are 2 calories each (42)

So 84 calories in 2 slice of bacon

3 slices of roasted turkey have 3 calories each slice (60)

Three slices of roasted turkey have 180 calories each.

180-84 is the difference in the amount of calories.

96 calories are added due to the calorie difference.

Two slices of bacon had 96 less calories than three slices of roasted turkey.

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The value of x is obtained as follows:

128º.

The measure of angle A is given as follows:

m < A = 132º.

For a parallelogram, the opposite angles are congruent, meaning that they have the same measure, hence the value of x is obtained as follows:

5x - 508 = x + 4.

4x = 512

x = 512/4

x = 128.

Then the measure of angle A is given as follows:

m < A = 5(128) - 508

m < A = 132º.

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