List five Integers that are congruent to 4 modulo 13 Click to select Click to select 8. 16, 28. 48, and 52 & 16, 24. 40 and 52 4. 16,24 48 and 52 4.30,56 82, and 108

The exact calculations for the test statistic and critical value depend on the significance level (α) chosen by Marianna.

Based on the given information, Marianna wants to determine if there is a difference in the number of links clicked on two different home page formats. She conducts a study where she randomly displays one of the home pages to visitors and records the page displayed and the number of links clicked.
For the sample of home page A, Marianna selects 132 visitors randomly, and they clicked an average of 8.7 links with a standard deviation of 2.3.
For the sample of home page B, Marianna selects 118 visitors randomly, and they clicked an average of 7.3 links with a standard deviation of 2.1.
To analyze the data, Marianna wants to compare the population means for the two home page formats. She assigns μ1 as the population mean number of clicks for home page A and μ2 as the population mean number of clicks for home page B.
Marianna sets up her hypothesis test using the alternative hypothesis (ha: μ1 - μ2 ≠ 0). This means she wants to determine if there is a significant difference between the means of the two home page formats.
In addition, Marianna assumes that the sample standard deviations are equal and sets α (the significance level) to a specific value (not provided in the question).
To conduct the hypothesis test, Marianna can use a two-sample t-test to compare the means of the two samples and determine if the difference is statistically significant. She will calculate the test statistic and compare it to the critical value corresponding to her chosen significance level (α).
If the test statistic falls within the rejection region (determined by the critical value), Marianna can reject the null hypothesis (H0) and conclude that there is a significant difference in the number of links clicked on the two home page formats.
It's important to note that the exact calculations for the test statistic and critical value depend on the significance level (α) chosen by Marianna.

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Answer:

5.83142789

Step-by-step explanation:

did it on a graphing calculator, hope this helps

Answer:

Step-by-step explanation:

first step:    3 + 1 =  4

second step:  4 - 4 = 0

third step:   0 + 7 = 7  (the answer is 7 )

Answer:

Step-by-step explanation:

-5/12 = 5/-12

yes

The critical path is the path with the longest duration, which in this case is A -> B -> D -> E with a duration of 11 days.

To determine the critical path of the project, we need to find the longest path of activities that must be completed in order to finish the project on time. This is done by calculating the earliest start time (ES) and earliest finish time (EF) for each activity.

Starting with activity A, ES = 0 and EF = 4. Activity B can start immediately after A is complete, so ES = 4 and EF = 7. Activity C can start after A is complete, so ES = 4 and EF = 6. Activity D can start after B is complete, so ES = 7 and EF = 9. Finally, activity E can start after C and D are complete, so ES = 9 and EF = 11.

The variance for each activity is also given, which allows us to calculate the standard deviation and determine the probability of completing the project on time. The critical path is the path with the longest duration, which in this case is A -> B -> D -> E with a duration of 11 days.

Using the expected durations and variances, we can calculate the standard deviation of the critical path. This information can be used to determine the probability of completing the project on time.

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Answer:

20%

Step-by-step explanation:

Triangle pairs are similar polygons if they have the same shape but not necessarily the same size. In order for two triangles to be similar, they must satisfy the following conditions:

They must have the same angles. This means that the measures of the angles in one triangle must be the same as the measures of the corresponding angles in the other triangle.

The lengths of the sides must be in the same ratio. This means that if you divide the lengths of the corresponding sides of one triangle by the lengths of the corresponding sides of the other triangle, you must get the same ratio for all pairs of sides.

For example, if triangle ABC is similar to triangle DEF, the ratios of AB/DE, AC/DF, and BC/EF must all be the same.

To determine if two triangles are similar, you can use one of several theorems and postulates, such as the Side-Side-Side (SSS) Similarity Theorem, the Side-Angle-Side (SAS) Similarity Theorem, or the Angle-Angle (AA) Similarity Postulate. These theorems and postulates provide different sets of conditions that must be satisfied in order for two triangles to be similar.

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The probability that she will choose to use a cab exactly one time is 4/9.

It has been given that In the morning she has 3 transportation choices. And in the evening the same 3 choices.

i) bus

ii) cab

iii) train

Since each choice have an equal chance of being chosen,

The probability of Choosing a bus will be 1/3

The probability of Choosing a cab will be 1/3

The probability of Choosing a train will be 1/3

Now, the Probability of Not Choosing the cab will be the sum of the probabilities of choosing a bus and train i.e, 2/3

Now there will be two possibilities-Either She chooses a cab in the morning and something else in the evening Or She chooses a cab in the evening and something else in the morning.

Therefore, the probability of choosing a cab exactly one time =

( Probability of cab in morning x Probability of no cab in the evening) + (Probability of no cab in morning x Probability of cab in evening)
Probability of choosing a cab exactly once

= 1/3 x 2/3  + 2/3 x 1/3

= 4/9

Therefore, the probability that she will choose to use a cab exactly one time is 4/9.

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Therefore , the solution of the given problem of equation comes out to be  9x^3 - 8x^2.

A mathematical equation is a formula that uses the equal sign (=) to connect two statements and express equality. A mathematical statement that proves the equality of two mathematical expressions is known as an equation in algebra. For instance, the components 3x + 5 and 14 in the equation 3x + 5 = 14 are separated by an equal sign. The equal sign is a crucial part of mathematical formulas, especially equations. Algebra is frequently utilized in equations. Algebra is used in mathematics when it is difficult to determine a precise quantity.

Here,

Polynomial function total

Polynomial functions are those that have a leading degree of three or higher. given the total;

(7x^3-4x^2)+(2x^3-4x^2)

Expand => (7x 3-4 times) + (2x 3-4 times)

= > 7x^3-4x^2 + 2x^3-4x^2

assemble similar terms

=> 7x^3 + 2x^3 - 4x^2 -4x^2

=> 9x^3 - 8x^2

Therefore , the solution of the given problem of equation comes out to be 9x^3 - 8x^2.

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Answer:

Given expression is \(\frac{1}{\text{cosec}A-1}-\frac{1}{\text{cosecA+1}}\) = 2tan²A

We have to prove this identity.

\(\frac{1}{\text{cosec}A-1}-\frac{1}{\text{cosecA+1}}=\frac{(\text{cosecA+1})-(\text{cosecA-1})}{(\text{cosecA-1})(\text{cosecA+1})}\)

                              = \(\frac{(\text{cosecA}-\text{cosecA})+(1+1)}{cosec^2A-1}\)

                              = \(\frac{2}{cosec^{2}A-1}\)

                              = \(\frac{2}{cot^{2}A}\) [From the identity, (cosec²A - 1) = cot²A]

                              = 2tan²A [From the identity, cotA = \(\frac{1}{\text{tan}A}\)]

Hence the given equation is proved.

Answer:  b

Step-by-step explanation:

I think

Answer:

2.8

Step-by-step explanation:

31.2×4/3

12a+8 = 41.6

12a=33.6

a= 2.8

Answer:

answer is 2.8

Step-by-step explanation:

3/4=0.75

0.75x12=9

0.75x8=6

9a+6=31.2

subtract 6 from both sides

9a=25.2

divide both sides by 9

a=2.8

Greetings from Brasil...

We know that the sum of the internal angles of a triangle is 180....

Bringing to our problem:

Angle P + Angle R + Angle S = 180

43 + 79 + Angle S = 180

Angle S = 180 - 43 - 79

a) The probability that a single student randomly chosen from all those taking the test scores 23 or higher is 0.3557

b) The probability that the mean score x of these students is 23 or higher is 0.0043

What is Probability?

Probability is synonymous with possibility. It is a mathematical branch that deals with the occurrence of a random event.

Given that ,

mean = \mu = 21.1

standard deviation = \sigma = 5.1

a) P(x ≥ 23 ) = 1 - P(x ≤ 23)

= 1 - P[(x - \mu) / \sigma ≤ (23-21.1) /5.1 ]

= 1 - P(z ≤ 0.37)

= 1 - 0.6443 = 0.3557

Probability= 0.3557

b) n = 50

mu\bar x = \mu = 21.1

σbar x = σ / \\(\sqrt{n}\) = 5.1/ \\(\sqrt{50}\) = 0.7212

P(\bar x ≥ 23) = 1 - P(\bar x ≤ 23 )

= 1 - P[(\bar x - \mu\bar x ) / \sigma\bar x ≤ (23 - 21.1) / 0.7212 ]

= 1 - P(z ≤ 2.63)

= 1 - 0.9957 = 0.0043

Probability = 0.0043

a) The chance of a single student picked at random from all those taking the test scoring 23 or higher is 0.3557.

b) The chance that the mean x of these students is 23 or greater is 0.0043.

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Answer:

10+x0.38

Step-by-step explanation:

The monthly cost is 10 then add any extra text by multiplying 0.38 and x

(x is how many extra messages sent)

If you want to find  the cost then you need to know how many messages were sent

Answer:

So what is the question?

Step-by-step explanation:

So what is the question?So what is the question?So what is the question?So what is the question?So what is the question?So what is the question?

Answer:

3 5

Step-by-step explanation:

It just is trust

1 ) Population parameter we are trying to build an interval estimate for: p1 - p2, where p1 is the proportion of republicans who think America will be better off in 2020 and p2 is the proportion of democrats who think America will be better off in 2020.

2) Sample estimate for this quantity: phat1 - phat2 = 0.7112

3) Standard error for the original sample statistic: 0.0501

4) Center of bootstrap distribution: 0.7112

5) 95% confidence interval for the population parameter: (0.6462, 0.7739)

1) The population parameter we are trying to build an interval estimate for is the difference in proportions of individuals who think America will be better off in 2020 when comparing republicans to democrats. We can represent this parameter as p1 - p2, where p1 is the proportion of republicans who think America will be better off in 2020 and p2 is the proportion of democrats who think America will be better off in 2020.

2) The sample estimate for this quantity is:

phat1 - phat2 = (427/502) - (58/416) = 0.8506 - 0.1394 = 0.7112

where phat1 is the sample proportion of republicans who think America will be better off in 2020 and phat2 is the sample proportion of democrats who think America will be better off in 2020.

3) Using Statkey to build a bootstrap confidence interval:

We will create a bootstrap distribution using at least 5,000 bootstrap samples.

First, we create a combined data set with the responses from both groups:

Group 1: republicans

Response: 427 out of 502

Group 2: democrats

Response: 58 out of 416

We can represent this combined data set as a vector of 485 ones (representing those who think America will be better off) and 433 zeros (representing those who do not think America will be better off).

We then take a random sample (with replacement) from this combined data set to create a bootstrap sample of the same size as the original sample (n=1032). We calculate the difference in proportions for this bootstrap sample (phat1 - phat2) and repeat this process many times to create a bootstrap distribution.

The standard error for the original sample statistic can be calculated as:

sqrt((phat1×(1-phat1))/502 + (phat2×(1-phat2))/416) = sqrt((0.85060.1494)/502 + (0.13940.8606)/416) = 0.0501

4) The center of the bootstrap distribution is 0.7112, which is the same as the sample estimate from the original sample.

5) To compute the 95% confidence interval for the population parameter, we need to find the middle 95% of the bootstrap distribution. We can use the percentile method to find the bootstrap confidence interval.

The 2.5th and 97.5th percentiles of the bootstrap distribution are:

percentile(2.5) = 0.6462

percentile(97.5) = 0.7739

Therefore, the 95% bootstrap confidence interval for the difference in proportions is:

0.7739 - 0.6462 = 0.1277

We can interpret this interval as: we are 95% confident that the true difference in proportions of individuals who think America will be better off in 2020 when comparing republicans to democrats is between 0.6462 and 0.7739.

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Answer:

Ages: Unknown.

Step-by-step explanation:

Why? There is no question, so I cannot understand. Please repost the question.

Answer:

4:27

Step-by-step explanation:

12 + 41 + 10 = 63 minutes or 1 hour and 3 minutes, subtract that from 5:30 and get 4:27

To solve the given initial value problem using Laplace transforms, let's denote the Laplace transform of x(t) as X(s).

1. Take the Laplace transform of the differential equation:
Applying the Laplace transform to each term, we have:
s^2X(s) - sx(0) - x'(0) - 7sX(s) + 7x(0) - 8X(s) = 5/(s^2 + 25)
Substituting the initial conditions, we get:
s^2X(s) - 3s - 4 - 7sX(s) + 21 - 8X(s) = 5/(s^2 + 25)

2. Rearrange the equation to solve for X(s):
Combining like terms, we have:
(s^2 - 7s - 8)X(s) = 5/(s^2 + 25) + 3s + 17

3. Solve for X(s):
To solve for X(s), we divide both sides by (s^2 - 7s - 8):
X(s) = (5/(s^2 + 25) + 3s + 17)/(s^2 - 7s - 8)

4. Find the inverse Laplace transform of X(s) to obtain the solution x(t):

To find the solution x(t), we need to take the inverse Laplace transform of X(s). This can be done using partial fraction decomposition and a table of Laplace transforms.

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Answer:

8

Step-by-step explanation:

The bottom angles are equal, so the sides are equal

2x = 5x-12

Subtract 5x from each side

2x-5x= 5x-12-5x

-3x = -12

Divide by -3

x = 4

YZ = 5x-12 = 5(4) -12 = 20-12 =8

Answer:

x      f(x)      g(x)

-2       4      -4

-1        1      - 1

0       0        0

1        1         -1

2       4        -4

Step-by-step explanation:

When a point is reflected across the x-axis the reflected point will have the same x value as the pre-image point

Therefore if point(x, y) is reflected across the x-axis the reflected point will be (x, -y)

When f(x) = x² is reflected across the x-axis, the reflected function becomes

f'(x) = -f(x) = -x²

Using this information we can complete the table as follows:

x      f(x)      g(x)

-2       4      -4

-1        1      - 1

0       0        0

1        1         -1

2       4        -4

No, we cannot draw a triangle with sides 3 cm, 3.5 cm, and 6.5 cm.

Let's understand the concept behind this:

Apply the triangle's length-of-sides property, which stipulates that the total of any two sides should be more than the value of the third side. Such a triangle cannot exist if there is any pair of sides whose sum is equal to or less than the third side.

We must determine whether the supplied side lengths constitute a triangle. We now understand that the triangle's third side should be greater than the sum of any two of its sides. Such a triangle cannot exist if there is any pair of sides whose sum is equal to or less than the third side. So, we'll try every combination and see if it meets the criteria.

Let’s assume AB = 3 cm, BC = 3.5 cm and AC = 6.5 cm.

AB + AC = 3 + 6.5 cm = 9.5 cm > 3.5 cm = BC.

AC + BC = 6.5 + 3.5 = 10 cm > 3 cm = AB.

AB + BC = 3 + 3.5 cm  = 6.5 cm = AC.

However, in this case, the length of the third side is equal to the total lengths of the other two sides, which renders the triangle's condition incorrect.

Therefore, there does not exist any triangle with sides of 3 cm, 3.5 cm, and 6.5 cm.

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Answer:

3 2/5 divided by 3 1/6 = 106/95 = 1 11/95

Step-by-step explanation:

3 2/5 divided by 3 1/6 =

17/5 divided by 19/6 =

17/5 x 6/19 =

106/95 =

1 11/95

Answer:

x= 11.25  y=6.75

Step-by-step explanation:

we will present all of that to equations so we have

7x+15y=180

and x+y=18

by solving those 2 equations together we get the solution

The missing value is 64. The equation can be written as:

log₄(16 · 64) = log₄(16) + log₄(64)

To find the missing value in the equation log₄(16 · 64) = log₄(16) + ?, we can use the logarithmic property you mentioned.

According to the property, the logarithm of a product is equal to the sum of the logarithms of the individual numbers.

Let's solve the equation step by step:

We know that log₄(16 · 64) is equal to the logarithm of the product of 16 and 64.

log₄(16 · 64) = log₄(1024)

We can simplify the right side of the equation by calculating the logarithms individually.

log₄(16) + ? = log₄(16) + log₄(64)

Now, we can substitute the base 4 logarithms of 16 and 64, which are known values:

log₄(1024) = log₄(16) + log₄(64)

The sum of the logarithms of 16 and 64 is the logarithm of their product:

log₄(1024) = log₄(16 · 64)

Therefore, the missing value is 64. The equation can be written as:

log₄(16 · 64) = log₄(16) + log₄(64)

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Answer:

y= -1/2x+3

Step-by-step explanation:

math

Answer:

-6

Step-by-step explanation:

Answer:

36 square feet

Step-by-step explanation:

To get the answer you need to find the area of the triangle and subtract area of the rectangle.

7*12/2 = 42

42 - 3*2 = 36