Below find a set of times (in weeks) to hospitalization for persons with a diagnosis of schizophrenia who have been randomized to standard therapy (Trt=0) or a new drug treatment (Trt=1). A plus sign indicates censoring that we will assume to be independent of disease.
Trt=0: 6 8 11+ 13 16 16 19 21+ 22+ 28 28+ 29 31 35 40+ 41+ 41+ 59+ 86+ 132+ Trt=1: 6 9+ 9 10 11+ 12+ 13+ 17+ 18 19+ 19 20+ 22 24 28+ 31 43+ 48 51+ 57+
1. Assuming a constant hazard (i.e. risk of hospitalization) in weeks 11 through 20, the estimated hazard of hospitalization for the new drug group (Trt=1) during this period is:
a. 2/129 person-weeks
b. 5/129 person-weeks
c. 7/129 person-weeks
d. 2/169 person-weeks
e. 7/169 person-weeks

Answer:

- 9x + 5y - 8

Step-by-step explanation:

3x + 3y + 2y - 12x - 8

- 9x + 5y - 8

Answer:

21,337.85 8,589 e

takethe 6,139 6,139 nawa og 8,589

Toy 1.40495_ear to 02 Yang es 2.48432 e

es Inc4oua5 Ince r 2 incz484323 lnceo.at

Step-by-step explanation:

Answer:

\( { \sqrt{ {x}^{3} } }^{ \frac{2}{3} } \)

\( { {x}^{ \frac{3}{2} } }^{ \frac{2}{3} } \)

..

Answer:

All of them equal to "x"

Answer:

Right answer = 52

Wrong answers = 8

Step-by-step explanation:

Every correct answer = + 3

Every wrong answer = - 2

Number of correct answers = x

Number of wrong answers = y

x + y = 60 - - - (1)

3x - 2y = 140 - - - (2)

From (1) :

x = 60 - y

Put x = 60 - y into (2)

3(60 - y) - 2y = 140

180 - 3y - 2y = 140

180 - 5y = 140

-5y = 140 - 180

-5y = - 40

y = 8

x = 60 - y

x = 60 - 8

x = 52

Right answer = 52

Wrong answers = 8

36 and 144

Explanation

Two Angles are Supplementary when they add up to 180 degrees

Step 1

Let

x= angle 1

y= angle2

The measure of one angle is four times the measure of the other angle,then

x and y are supplementary angles , then

Step 2

use Equation (1) and (2) to find x and y

replace Equation (1) in Equation (2)

replace the value of y= 36 in equation (1) to find x

Hence, the answer is 36 and 144

Answer: the answer is 151

Step-by-step explanation:

Answer:

c

Step-by-step explanation:

If \($x$\) is an element of the set \($\{ -1, 1, 2 \}$\) and \($y$\) is an element of \($\{ -2, -1, 0, 1, 2 \}$\), the number of distinct values of \($x^y$\) that are positive is 5.

When the base is positive, the exponent produces positive powers.

Now, let's evaluate the power for each possible combination of \($x$\) and \($y$\):

For \($x = -1$\) and \($y$\) being an even number, we get a positive power. Here are the possible even values for \($y$\):
\($y = -2$\) and \($y = 0$\).  Therefore, \($x^y$\) is positive for two possible combinations: \($(-1)^{-2} = 1$\) and \($(-1)^{0} = 1$\).

For \($x = 1$\) and any value of \($y$\), the power of \($x$\) is always positive, and the value of \($x$\) is always 1. Therefore, there's only one possible combination: \($1^y = 1$\).

For \($x = 2$\) and \($y$\) being an even number, we get a positive power. Here are the possible even values for \($y$\):
\($y = -2$\) and \($y = 0$\). Therefore, \($x^y$\) is positive for two possible combinations: \($2^{-2} = 1/4$\) and \($2^{0} = 1$\)

For \($x = 2$\) and \($y$\) being an odd number, we get a negative power. Here are the possible odd values for \($y$\):
\($y = -1$\) and \($y = 1$\). Therefore, \($x^y$\) is positive for zero possible combinations.

Therefore, the total number of distinct values of \($x^y$\) that are positive is \($2+1+2 = 5$\).

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Answer:

I think the answer is m=3

Step-by-step explanation:

Hope this helps :D

The fraction 1/8 in decimal form is 0.125, and the fraction 3/4 in decimal form is 0.75.

Given two fractions are there 1/8 and 3/4?

We have to calculate those fractions into decimal form as below.

1/8                                                              3/4

= 8) 10 (0.125                                      = 4) 30 (0.75

        8                                                         28

     -------                                                    ---------

        20                                                          20

         16                                                          20

        --------                                                  ------------

           40                                                         0

            40

      ---------------

              0

Therefore, the fraction 1/8 in decimal form is 0.125, and the fraction 3/4 in decimal form is 0.75.

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The question is incomplete. Please find the complete question below:

Write the decimal equivalents of these two fractions: 1/8 and 3/4

The decimal equivalent of 1/8 is 1.25, 0.125, or 0.0125, and the decimal equivalent of 3/4 is 7.5, 0.75, or 0.075

Answer:

53,150 ML

Simply add both of the numbers and you have your answer.

The sample standard deviation of test scores across the 100 classrooms is 11.9.

What is standard deviation?

The standard deviation is a statistic that expresses how much variance or dispersion there is in a group of numbers. While a high standard deviation implies that the values are dispersed over a wider range, a low standard deviation shows that the values tend to be close to the mean of the collection.

As given,

Test score = P₀ + (B₁ × cs)

Substitute values respectively,

Test score = 520.4 + (-5.82 × 21.4)

Test score = 395.852

Thus, sample average Test score = 395.852.

Evaluate Sum of Squares Regression (SSR) as follows:

SER = 11.5 then

SSR = (n -2) (SER)²

Substitute values,

SSR = (100 - 2) (11.5) ²

SSR = 12960.5

Evaluate Total Sum of Squares (SST) as follows:

SST = SSR / (1 - R²)

SST = 12960.5 / (1-0.08)

SST = 14087.5

Evaluate standard deviation as follows:

Standard deviation = √ (SST/(n - 1))

Substitute values,

Standard deviation = √ (14087.5 / (100 - 1))

Standard deviation = √ (14087.5/99)

Standard deviation = 11.93

Standard deviation = 11.9

Hence, The sample standard deviation of test scores across the 100 classrooms is 11.9.

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Answer: the one in the bottom right

Step-by-step explanation: each month which is the x axis ( the bottom line) the y axis (line on the left) goes up by 5

so when the x axis is 1 the y axis should be at 5

Answer: The mean temperature for the first eight days is 6.5 degrees

Step-by-step explanation: The most important piece of clue has been given which  is the mean (average) for the observed data set, which is 7 days.

Note that the formula for the mean of a data set is derived as;

Mean = ∑x / f

Where ∑x is the summation of all observed data set and f is the number of data observed, that is 7. The formula now becomes;

6 = ∑x / 7

By cross multiplication, we now have,

6 * 7 = ∑x

42 = ∑x

This means the addition of all temperature observed on the first 7 days is 42. The temperature on the eighth day is now given as 10 degrees, this means the summation of all observed data for the first eight days would become 42 + 10 which equals 52. Therefore when calculating the mean for the first eight days, ∑x is now 52. The formula for the first eight days therefore is derived as follows;

Mean = ∑x / 8

Mean = 52 / 8

Mean = 6.5

The calculations therefore show that the mean temperature for the first eight days in January is 6.5 degrees

Raw data can be calculated by using mathematical operations such as addition, subtraction, multiplication, and division.

This can be done manually or by using a calculator or a computer program .Additionally, statistical methods such as mean, median, mode, and standard deviation can be used to calculate raw data.Raw data can also be manipulated in various ways. For example, data can be sorted, filtered, and organized into categories or hierarchies. Data can also be visualized in graphs, charts, and diagrams to make patterns and trends easier to identify. Statistical methods such as correlation and regression can also be used to analyze and interpret raw data. Additionally, data can be combined with other data sets to create new insights and relationships. Finally, machine learning and predictive analytics can be used to make predictions about future outcomes based on existing data.

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Answer:

Ok so I've had braces and it doesn't really hurt getting put in but it does hurt when they tighten them but you have nothing to worry about :)

Step-by-step explanation:

Answer:

They don't hurt when they put them in however you will feel mild soreness and discomfort as your mouth adjusts to them as with anything, for example, fillings, they feel gritty and uncomfortable at first but your mouth adjusts to it.

" There will be mild soreness or discomfort after the orthodontic wire is engaged into the newly placed brackets, which may last for a few days to a week."

I know its can be scary at first but its for the health of your teeth and not everyone gets that privilege, just make sure to take care of them properly.

Step-by-step explanation:

Answer:

You should instead ask your teacher for help trust me that is what I do she helps me learn better than others.

Answer: Ix - 5I ≥ 5.

Step-by-step explanation:

We want the set:

[0, 10]

to be the solution of:

Ix - bI ≤ c

So we need to find the values of c and b.

The first step is to find the middle point in our segment.

We can do that by adding the extremes and dividing it by 2.

M = (10 + 0)/2 = 5

And we also want to find half of the difference between the extremes, this is:

D = (10 - 0)/2 = 5.

Now, this set will be the set of solutions of:

Ix - MI ≥ D

Then in our case, we have:

Ix - 5I ≥ 5.

so we have that b = 5, and c = 5.

Answer:

1/4xy(x^2+3y)

Step-by-step explanation:

oh ok last one was missing that y thx for reposting

Given,

The linear pair of the equation is,

Required

The solution of the linear equation.

Taking the equation first as,

Substituting the value of y in second equation then,

Substituting the value of x in first equation then,

Hence, the solution of the system is (1, -10).

Answer:

10,11.25,15

Step-by-step explanation:

we use linear scale factor you had mentioned that the triangles are similar so the smallest side in the first triangle is 8 and in tje other triangle it is 10

those two sides are equal which means 8 is equal to ten so if 8 is equal to 10 what about 9.if you cross multiply you get 11.25 then you do the same for 12 and get 15

8=10

9=11.25

12=15

Answer:

0.8x dollars

Step-by-step explanation:

Answer:

Step-by-step explanation:

80%*x = 0.8x

The LU factorization of matrix A is A = LU, where L = [[1, 0, 0], [-2, 1, 0], [1.5, -3, 1]] and U = [[4, -8, 10], [0, 24, -27], [0, 0, -12.5]].

Let's go step by step to find the LU factorization of matrix A.

Matrix A:

A =

[4, -8, 10]

[-8, 8, -7]

[6, -7, 3]

Step 1:

Initialize the L matrix as an identity matrix of the same size as A.

L =

[1, 0, 0]

[0, 1, 0]

[0, 0, 1]

Step 2:

Perform Gaussian elimination to obtain U.

- Multiply the first row of A by (1/4) and replace the first row of A with the result.

A =

[1, -2, 2.5]

[-8, 8, -7]

[6, -7, 3]

- Subtract 8 times the first row of A from the second row of A and replace the second row of A with the result.

A =

[1, -2, 2.5]

[0, 24, -27]

[6, -7, 3]

- Subtract 6 times the first row of A from the third row of A and replace the third row of A with the result.

A =

[1, -2, 2.5]

[0, 24, -27]

[0, 5, -12.5]

Step 3:

Update the L matrix based on the operations performed during Gaussian elimination.

L =

[1, 0, 0]

[0, 1, 0]

[0, 0, 1]

Step 4:

The resulting matrix A is the upper triangular matrix U.

U =

[1, -2, 2.5]

[0, 24, -27]

[0, 5, -12.5]

Therefore, the LU factorization of matrix A is:

L =

[1, 0, 0]

[0, 1, 0]

[0, 0, 1]

U =

[1, -2, 2.5]

[0, 24, -27]

[0, 5, -12.5]

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The best estimate for the population mean that Bryce will score a 90% or better is 0.625.

Based on the given information, Bryce played the same song on Guitar Hero 8 times and scored percentages of 89%, 82%, 90%, 88%, 89%, 91%, 85%, and 95%. He wants to know the population mean that he will score a 90% or better. Which would be the best estimate?

To find the population mean, we need to calculate the average of Bryce's scores.

Step 1: Add up all the scores: 89 + 82 + 90 + 88 + 89 + 91 + 85 + 95 = 709.

Step 2: Divide the sum by the total number of scores (8): 709 / 8 = 88.625.

Therefore, the best estimate for the population mean that Bryce will score a 90% or better is 0.625.

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Answer:

definitely 145

Step-by-step explanation:

It is 145 degrees I hope this helps :)

The speed that an aeroplane is intended to fly at is called its maximum operating speed (VA). With elevations of 12, 15, and 18 degrees, the lift and G-force grow.

 Speed.

It is the rate at which a displacement adapts to its surroundings. A body's speed is a scalar quantity since it is directionless. It is also the rate at which displacement in relation to the environment is shifting in a particular direction.

Here,

The maximum operational speed of an aeroplane is the speed at which it is designed to fly (VA). Elevations of 12, 15, and 18 degrees result in increasing lift and G-force.

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The solid line on the graph has a positive slope that will be 2y - 3x ≥ 7. Then the correct option is C.

Let the equation of the line pass through (x₁, y₁) and (x₂, y₂).

Then the equation of the line is given as,

\rm (y - y_2) = \left (\dfrac{y_2 - y_1}{x_2 - x_1} \right ) (x - x_2)

The points that are on the line are given below.

(-9, -10), (-3, -1), and (3, 8)

The inequality of the line is given as,

(y - 8) ≥ [(8 + 1) / (3 + 3)] (x - 3)

y - 8 ≥ (3/2)(x - 3)

2y - 16 ≥ 3x - 9

2y - 3x ≥ 7

The solid line on the graph has a positive slope that will be 2y - 3x ≥ 7. Then the correct option is C.

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Answer: c

Step-by-step explanation: