currently, 55 people per hour arrive at the er 10% of who are admitted to the hospital. on average, 7 people are waiting to be registered and 34 are registered and waiting to see a doctor. the registration process takes, on average, 2 minutes per patient. among patients who receive prescriptions, average time spent with a doctor is 5 minutes. among those admitted to the hospital, average time is 30 minutes. on average, how long does a patient are being examined by doctors? on average, how many patients are there in the er? assume the process is stable; that is, average inflow rate equals average outflow rate.

The correct answer is 2 (C) - 2 days is the total slack for activity F. To determine the total slack for activity F, we need to calculate the slack for each activity in the network. Slack refers to the amount of time an activity can be delayed without affecting the project completion time.

1. First, let's draw the network using the information provided:
  - A is the start node and G is the stop node.
  - Activity A has a duration of 5 days and has no predecessor.
  - Activities B, C, and D have durations of 8, 7, and 6 days respectively, and their predecessors are A.
  - Activity E has a duration of 9 days and its predecessors are B, C, and D.
  - Activity F has a duration of 10 days and its predecessors are B, C, and D.
  - Activity G has a duration of 5 days and its predecessors are E and F.

                 A
                /|\
               / | \
              /  |  \
             B   C   D
              \  |  /
               \ | /
                \|/
                 E
                 |
                 F
                 |
                 G

2. Now, let's calculate the slack for each activity:
  - Slack is calculated by subtracting the earliest start time of an activity from the latest start time without delaying the project completion time.
  - The earliest start time for activity F is 17 days.
  - The latest start time for activity F is 19 days (project completion time is 22 days).
  - Total slack for activity F = latest start time - earliest start time = 19 - 17 = 2 days.

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Answer:

da i dont even know thias

Step-by-step explanation:

Answer:

C. the same

Step-by-step explanation:

4.80 divided by 12 equals .40

6.40 divided by 16 equals .40

The coefficient of determination in this scenario is 0.747, which means that approximately 74.7% of the variation in the dependent variable is explained by the independent variable(s). The remaining 25.3% is unexplained and may be due to other factors or errors in the model.

The coefficient of determination, also known as R-squared, is a statistical measure that represents the proportion of the variation in the dependent variable that is explained by the independent variable(s).

It is calculated as 1 - (SSE/SST).

Given that the SST is 225 and SSE is 57, we can calculate the coefficient of determination as follows:

R-squared = 1 - (SSE/SST)
R-squared = 1 - (57/225)
R-squared = 0.747

Therefore, the coefficient of determination in this scenario is 0.747, which means that approximately 74.7% of the variation in the dependent variable is explained by the independent variable(s).

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Answer:

♡ madeline here ♡

you forgot the attachment luv

have a great day! stay safe.

✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧･ﾟ

Step-by-step explanation:

Answer:

J

Step-by-step explanation:

x represents the number of gallons of gas and realistically you can’t have negative gallons

D. The set W would be a subspace of set of real numbers R cubed.

For a set to be considered a vector space, it must satisfy the following conditions:

1. It contains the zero vector (the additive identity).

2. It is closed under vector addition.

3. It is closed under scalar multiplication.

Since the set W is a subset of R cubed, it inherits the properties of R cubed, including the zero vector. Therefore, option C is not true.

Options A and B are not necessarily true for all subsets of R cubed. They may hold for some specific subsets, but they are not general properties that apply to all subsets.

Option D is the correct answer because it states that the set W would be a subspace of R cubed. A subspace is a subset of a vector space that is itself a vector space, satisfying all the properties of a vector space. Since W is a subset of R cubed, it would be a subspace if it satisfies the three conditions mentioned above.

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The first step we need to take in order to solve the question is to calculate the length of the wheel. The length of a circle cna be found with the following expression:

The diameter of the wheel is 24 inches, therefore:

Each complete turn on the wheel moves the truck 24*pi inches. The wheel is turning at a rate of 455 rotations per minute, therefore in one minute the distance traveled by the truck is:

The speed of the truck is 10920*pi inches per minute. We need to convert this to miles per hour. To do that we need to divide the expression by 1056.

The speed of the truck in miles per hour is 10.34*pi

The value of the given expression (7m - 2m²n)² = 34,596 at m = -6 and n = 2.

An expression consists of variables, constants, and operators. Based on the number of terms in an expression, they are named linear, binomial, and so on.

The given expression is (7m - 2m²n)²

It is given that m = -6 and n = 2

To evaluate the given expression, the given values are substituted in it.

On substituting these values,

(7m - 2m²n)² = (7(-6) - 2(-6)²(2))²

⇒ (-42 - 4(36))²

⇒ (-42 - 144)²

⇒ (-186)²

∴ (7m - 2m²n)² = 34,596

Therefore, the required value of the given expression is 34,596.

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a) The probability that at least one of them guesses correctly is $1-0.0625=0.9375$.

b) The probability that all four guess incorrectly is \(\$(0.5)^4\) = 0.0625$.

a) The probability that at least one of them guesses correctly is the complement of the probability that none of them guess correctly. Since each friend has a probability of 0.5 of guessing incorrectly, the probability that one friend guesses incorrectly is 0.5, and the probability that all four friends guess incorrectly is:

\(0.5 * 0.5 * 0.5 * 0.5 = 0.0625\) or 6.25%

Therefore, the probability that at least one friend guesses correctly is:

1 - 0.0625 = 0.9375

b) The probability that all of them guess incorrectly is the product of their individual probabilities of guessing incorrectly:

\(0.5 * 0.5 * 0.5 * 0.5 = 0.0625\)  or 6.25%

Therefore, the probability that all of them guess incorrectly is 0.0625.

It is a number between 0 and 1, with 0 indicating the event is impossible and 1 indicating it is certain.

By dividing the number of favourable outcomes by the total number of possible outcomes, one can determine the probability of an occurring.

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The complete question is:

Four friends are guessing answers to math questions. They believe that, independently of one another, each of them has a 0.5 chance of predicting the right response to any given question.

a) What is the probability that at least one of them guesses correctly?

b) What is the likelihood that every single guess is wrong?

The error message "x and y must have same first dimension but have shaped" typically occurs in programming languages such as Python or MATLAB when trying to operate on arrays or matrices with incompatible dimensions. In this case, the first dimension of the arrays or matrices must be the same, but they are not.

For example, if we have two arrays, x with shape (3, 4) and y with shape (2, 4), we cannot perform certain operations such as addition or multiplication between them because the first dimension, which represents the number of rows, is different.

To resolve this error, we can either reshape one of the arrays to have the same number of rows as the other, or we can transpose one of the arrays so that their dimensions match up. Another option is to adjust the code to ensure that the arrays being used have the same first dimension.

In summary, the "x and y must have the same first dimension but have shaped" error occurs when we attempt to operate on arrays or matrices with incompatible dimensions, and it can be resolved by reshaping, transposing, or adjusting the code.

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The expected time for completion of Activity "X" on a PERT chart is 9 hours.

PERT analysis is a project management technique that is used to evaluate and analyze the tasks involved in finishing a project. It makes use of 3 duration estimates: optimistic, pessimistic, and most likely times to calculate the expected duration of each activity. These estimates are used to analyze the critical path, slack time, and schedule of the project.

Let's calculate the expected time for completion of Activity "X" on a PERT chart using the given estimates:

Optimistic time (O) = 6 hours

Most likely time (M) = 9 hours

Pessimistic time (P) = 12 hours

Expected time (TE) = [O + 4M + P] ÷ 6= [6 + 4(9) + 12] ÷ 6= [6 + 36 + 12] ÷ 6= 54 ÷ 6= 9

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Answer:

34 and 10

Step-by-step explanation:

8.5/.5=17

17x2=34

2.5/.5=5

5x2=10

10 and 34

Step-by-step explanation:

i didn't get your question..but if it was meant..to put the value of B in A.. i did it this way! if it's not the right way i am sorry!

Step-by-step explanation:

Simply graph the two equations....the intersection of the two graphs is the solution

Answer:

9:20 AM

Step-by-step explanation:

Answer: 9:20

Step-by-step explanation:  7:35 + 1 hour and 45 minutes = 9:20

Answer:

Jeff, 4.5 hours; Julia 9 hours.

Step-by-step explanation:

To solve the problem, we need to write two equations using the given information.

So, writing the first equation we have:

We know that Jeff can weed the garden twice as fas as his sister Julia, so:

Also, from the statement we know that they can weed the garden in 3 hours, so, writing the second equation we have:

Then, we need to substitute the first equation into the second equation in order to isolate Julia's rate, so, solving we have:

We have that Julia could weed the garden by herself in 9 hours.

So, calculating how long will it take to Jeff, we have:

We have that Jeff could weed the same garden by himself in 4.5 hours.

hope this helps!

Answer:

0.78814

Step-by-step explanation:

From. The Z probability distribution table ;

The values larger than - 0.8

P(Z ≤ - 0.8) = 0.21186

P(Z > - 0.8) = 1 - P(Z ≤ - 0.8)

1 - P(Z ≤ - 0.8) = 1 - 0.21186

P(Z > - 0.8) = 1 - 0.21186 = 0.78814

Creating a discussion question, evaluating prospective solutions, and brainstorming and evaluating possible solutions are steps in problem-solving.

What is problem-solving?

Problem-solving is the method of examining, analyzing, and then resolving a difficult issue or situation to reach an effective solution.

Problem-solving usually requires identifying and defining a problem, considering alternative solutions, and picking the best option based on certain criteria.

Below are the steps in problem-solving:

Step 1: Define the Problem

Step 2: Identify the Root Cause of the Problem

Step 3: Develop Alternative Solutions

Step 4: Evaluate and Choose Solutions

Step 5: Implement the Chosen Solution

Step 6: Monitor Progress and Follow-up on the Solution.

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Answer:

y = \(\frac{21}{4}\)

Step-by-step explanation:

Given

\(\frac{1}{6}\) y - \(\frac{1}{2}\) = 3 - \(\frac{1}{2}\) y

Multiply through by 6 to clear the fractions

y - 3 = 18 - 3y ( add 3y to both sides )

4y - 3 = 18 ( add 3 to both sides )

4y = 21 ( divide both sides by 4 )

y = \(\frac{21}{4}\) = 5.25

Answer:

90.75 cm^2

Step-by-step explanation:

The area of a trapezoid is given by

A = 1/2 ( b1+b2) *h

where b1 and b2 are the lengths of the bases and h is the height

A = 1/2(8.5+ 15.7) * 7.5

1/2 (24.2) 7.5

90.75 cm^2

Answer:

\( \frac{x}{ - 6} + 17 = 14 \\ \frac{x}{ - 6} = 14 - 17 \\ \frac{x}{ - 6} = - 3 \\ x = - 6 \times - 3 \\ x = 18 \\ thank \: you\)

With regard to a​ regression-based forecast, the standard error of the estimate gives a measure of option (C) the variability around the regression line

The standard error of the estimate in a regression-based forecast is a measure of the variability of the actual data points around the predicted values of the regression line.

It tells us how much the actual data points are likely to deviate from the predicted values, and provides a measure of the accuracy of the forecast. It is not related to the time required to derive the forecast equation, the maximum error of the forecast, or the time period for which the forecast is valid.

Therefore, the correct option is (C) The variability around the regression line.

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The give question is incomplete, the complete question is:

With regard to a​ regression-based forecast, the standard error of the estimate gives a measure of:

A. the time required to derive the forecast equation.

B. the maximum error of the forecast.

C. the variability around the regression line.

D. the time period for which the forecast is valid.

Answer:

10,000,000

Step-by-step explanation:

log10 x = 7

10^7 = 10,000,000

See attachment for math work and answer.

The graph has y-intercept (0,5) and increases with a constant ratio of 3.

A function in mathematics is a connection between a set of inputs (sometimes referred to as the domain) and a set of outputs (also referred to as the range). Each input value is given a different output value.

The y-intercept lies at (0, 5) because the value of the function at x=0 is 530 = 5. The 'constant ratio' is 3, meaning that any increment of 1 in x causes the function value to grow by a factor of 3. (That serves as the exponential term's foundation.)

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Missing parts;

Which of the following statements is true for a function with equation f(x) = 5(3)*?

The graph has y-intercept (0,5) and increases with a constant ratio of 3.

The graph has y-intercept (0, 3) and decreases with a constant ratio of 3.

The graph has y-intercept (0, 3) and increases with a constant ratio of 5.

The graph has y-intercept (0,5) and decreases with a constant ratio of 3.

The reduced row echelon form of the augmented matrix for the given system cannot be determined without knowing the specific system of equations.

To find the reduced row echelon form, we would need to know the coefficients and constants of the equations in the system. Once we have the augmented matrix, we can perform row operations to transform it into reduced row echelon form.

Reduced row echelon form, also known as row canonical form, is a way to represent a system of linear equations in a simplified and standardized form. In this form, the matrix has the following properties:

1. The leftmost nonzero entry in each row is 1 (called a leading 1).

2. The leading 1 in each row is to the right of the leading 1 in the row above it.

3. All entries below and above a leading 1 are zero.

4. All rows consisting entirely of zeros are at the bottom.

To transform a matrix into reduced row echelon form, we use row operations such as swapping rows, multiplying rows by a nonzero scalar, and adding or subtracting rows from one another. The process involves applying these row operations iteratively until we achieve the desired form.

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Answer:

its B and C

Step-by-step explanation:

TRUST ME

Answer:

b, c

Step-by-step explanation:

Answer:

b/ 16 g/ml

Step-by-step explanation:

density = mass / volume

= 48g/3ml