Why are there number in the middles I’m so confused

Answer:

hope it helps

Step-by-step explanation:

Answer:

SEE THE IMAGE FOR SOLUTION..

Using the binomial distribution, it is found that she should expect to roll the number cube 46 times.

It is the probability of exactly x successes on n repeated trials, with p probability of a success on each trial.

The expected number of trials until q successes is:

\(E_s(X) = \frac{q}{p}\)

In this problem:

Then:

\(E_s(X) = \frac{23}{0.5} = 46\)

She should expect to roll the number cube 46 times.

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Answer:

answer is 46.

Step-by-step explanation:

Answer: 9/2, 2.63, -2.47, -5sqrt(3), -18

Step-by-step explanation:

Hicksian demand functions are:x1** = 2P₁x₂ ; x₂** = P₂²

Utility function: u(x1+x2) = .5ln(x1) + .25ln(x₂) .The Marshallian demand functions are: x1* = - and x₂* = P₂.

The indirect utility function is found by substituting Marshallian demand functions into the utility function and solving for v(P₁, P₂, Y).u(x1*,x2*) = v(P₁,P₂,Y) ⇒ u(-, P₂) = v(P₁,P₂,Y) ⇒ .5ln(-) + .25ln(P₂) = v(P₁,P₂,Y) ⇒ v(P₁,P₂,Y) = - ∞ (as ln(-) is not defined)

Thus the indirect utility function is undefined.

Minimum expenditure function can be derived from the Marshallian demand function and prices of goods:

Exp = P₁x1* + P₂x2* = P₁(-) + P₂P₂ = -P₁ + P₂²

Minimum expenditure function is thus:

Exp = P₁(-) + P₂²

Hicksian demand functions can be derived from the utility function and prices of goods:

H1(x1, P1, P2, U) = x1*H2(x2, P1, P2, U) = x2*

Hicksian demand functions are:

x1** = 2P₁x₂

x₂** = P₂²

If there are no restrictions on the amount of money the consumer can spend, the Hicksian demand functions for x1 and x2 coincide with Marshallian demand functions.

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The option that gives chart elements a realistic, three-dimensional look is D. Plot Area.

The option that gives chart elements a realistic, three-dimensional look is the plot area. The plot area is the portion of the chart that displays the data points and is typically the main focus of the chart. Adding shading and depth to the plot area, can give the chart a more lifelike appearance and make the data more visually engaging. Additionally, three-dimensional charts can also be created by using specialized charting software that allows for the creation of 3D visualizations. These types of charts can be useful for highlighting patterns and trends in the data, especially when dealing with large datasets.
In a chart, the plot area is the space where the actual data points, bars, lines, or pie slices are displayed. By applying three-dimensional effects to the plot area, you can make the chart elements appear more realistic and visually appealing. This can enhance the viewer's understanding of the data being represented and make the chart more engaging.
In summary, to give chart elements a realistic, three-dimensional look, you should focus on the plot area (Option D). The axis (Option A), chart area (Option B), and legend (Option C) do not directly contribute to creating a three-dimensional appearance for the chart elements.

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First, to understand the reason to use a normal distribuition, let's analyse some of it's properties.

The normal distribution is given by the following formula:

The normal distribuition is centered at the mean(given by 'mu' in the equation above) and its growth is controlled by its standard deviation(given by the 'sigma').

It is shaped like a bell(centered, with a gaussian decay, symetric). The data given by the question, have all of those properties. Is centered at the middle with a exponential decay in both 'directions'. Since the data agrees with the gaussian distribution properties, it makes sense to model this distribuition as a normal distribuition.

Step-by-step explanation:

solution file attached

Answer:

A

Step-by-step explanation:

6(-3w+1/3)

-18w+2

Answer:

A

Step-by-step explanation:

6(-3w +1/3)

to distribute you multiply everything inside the parentheses by 6

so

6(-3w) + 6(1/3)

-18w + 6/3

-18w +2

Answer:

Ok but

Step-by-step explanation:

give question too

The equation parallel to the given equation, and passing through the given point is

y = -3x - 3

Given the line:

y = -3x - 1 ................................................(1)

The slope of this equation is -3

A line parallel to this line has the same slope as this, but a different y-intercept.

Let the parallel line be

y = -3x + b ..............................................(2)

To find the unknown b, we use the given point (8, -27), i.e x = 8, y = -27 into equation (2) and solve for b

-27 = -3(8) + b

-27 = -24 + b

b = -27 + 24

= -3

Substitute the value of b into (2), we have

y = -3x - 3

The probability of randomly selecting a 12th-grader with a score higher than 300 on the 2000 mathematics test is approximately 0.5.

Given that the scores of 12th-grade students on the 2000 mathematics test follow an approximately normal distribution with a mean of 300 and a standard deviation of 35, we can use the properties of the normal distribution to calculate the probability.

To find the probability that a randomly chosen student has a score higher than 300, we need to determine the area under the normal distribution curve to the right of the value 300. This represents the probability of a score being higher than 300.

Using statistical tables or a calculator with a cumulative distribution function for the normal distribution, we can find that the area to the right of 300 is approximately 0.5. This means that there is a 50% probability of selecting a student with a score higher than 300.

The normal distribution is symmetrical around its mean, so the probabilities of being below and above the mean are equal. Since the mean is 300, which is the cutoff point, the probability of a randomly selected student having a score higher than 300 is 0.5 or 50%.

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The total number of points scored by the other 7 team members in Euclid high school's last basketball game is 11.

For the given question.

Let 't' be the total points scored.

Alexa = 1/4 t.

Brittany = 2/7 t

Chelsea = 15

Let 'x' be the points scored by remaining 7 team.

Thus, the two variable equation becomes.

1/4 t +  2/7 t + 15 + x = t   .....eq 1

Where, x ≤ 14 ( for 7 terams)

Simplifying eq 1.

15 + x = 13/ 28 t

28x + 28 = 13 t

Now, t must be divisible by 28.

Let t = 28 u, u ≥ 0 and divisible by 28.

Thus,

x + 15 = 13u.

Then, u = 2( t = 56) has been the only candidates for which x = 11.

Thus, the total number of points scored by the other 7 team members is 11.

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We have proved that Angle BCD is equal to angle BAD plus angle ABC plus angle ADC, as required.

To prove that angle BCD is equal to angle BAD plus angle ABC plus angle ADC, we can use the following steps:

Step 1: Join points A and C with a line segment. Let's label the point where AC intersects with line segment BD as point E.

Step 2: Since line segment AC is drawn, we can consider triangle ABC and triangle ADC separately.

Step 3: In triangle ABC, we have angle B + angle ABC + angle BCA = 180 degrees (due to the sum of angles in a triangle).

Step 4: In triangle ADC, we have angle D + angle ADC + angle CDA = 180 degrees.

Step 5: From steps 3 and 4, we can deduce that angle B + angle ABC + angle BCA + angle D + angle ADC + angle CDA = 360 degrees (by adding the equations from steps 3 and 4).

Step 6: Consider quadrilateral ABED. The sum of angles in a quadrilateral is 360 degrees.

Step 7: In quadrilateral ABED, we have angle BAD + angle ABC + angle BCD + angle CDA = 360 degrees.

Step 8: Comparing steps 5 and 7, we can conclude that angle B + angle BCD + angle D = angle BAD + angle ABC + angle ADC.

Step 9: Rearranging step 8, we get angle BCD = angle BAD + angle ABC + angle ADC.

Therefore, we have proved that angle BCD is equal to angle BAD plus angle ABC plus angle ADC, as required.

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Given: Quadrilateral \(\displaystyle\sf ABCD\)

To prove: \(\displaystyle\sf \angle BCD = \angle BAD + \angle ABC + \angle ADC\)

Proof:

1. Draw segment \(\displaystyle\sf AC\) and extend it to point \(\displaystyle\sf E\).

2. Consider triangle \(\displaystyle\sf ACD\) and triangle \(\displaystyle\sf BCE\).

3. In triangle \(\displaystyle\sf ACD\):

4. In triangle \(\displaystyle\sf BCE\):

5. Since \(\displaystyle\sf \angle BCE\) and \(\displaystyle\sf \angle BCD\) are corresponding angles formed by transversal \(\displaystyle\sf BE\):

6. Combining the equations from steps 3 and 4:

Therefore, we have proven that in quadrilateral \(\displaystyle\sf ABCD\), \(\displaystyle\sf \angle BCD = \angle BAD + \angle ABC + \angle ADC\).

\(\huge{\mathfrak{\colorbox{black}{\textcolor{lime}{I\:hope\:this\:helps\:!\:\:}}}}\)

♥️ \(\large{\underline{\textcolor{red}{\mathcal{SUMIT\:\:ROY\:\:(:\:\:}}}}\)

The numeric value of x at x = -2 is given as follows:

f(-2) = 9.

To obtain the numeric value of a function or of an expression, we substitute each instance of any variable or unknown on the function by the value at which we want to find the numeric value of the function or of the expression.

In this problem, we have a piece-wise function, which is a function with different definitions based on the input of the function.

x = -2 is less than 1, hence the definition at x = -2 is given as follows:

f(x) = -4x + 1.

The numeric value is then given as follows:

f(-2) = -4(-2) + 1

f(-2) = 9.

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To find the work done, we need to integrate the force F(r) along the path that the particle moves. Since the path is a straight line, we can parametrize it as r(t) = (2, 0, 0) + t((2,3,5)-(2,0,0)) = (2+2t, 3t, 5t),

where 0 <= t <= 1.

Then, the force F(r(t)) is given by F(t) = K(2+2t, 3t, 5t)/[(2+2t)^2 + (3t)^2 + (5t)^2]^(3/2).

The work done by the force as the particle moves from (2,0,0) to (2,3,5) is given by the line integral:

W = ∫ F(r(t)) · dr(t) from t=0 to t=1

where dr(t) is the differential of r(t) with respect to t.

Now, we need to evaluate the dot product F(r(t)) · dr(t).

Note that dr(t) = (2,3,5) dt, since the path is a straight line.

Therefore: F(r(t)) · dr(t) = K(2+2t, 3t, 5t)/[(2+2t)^2 + (3t)^2 + (5t)^2]^(3/2) · (2,3,5) dt

= K(2+2t)(2) + 3t(3) + 5t(5) / [(2+2t)^2 + (3t)^2 + (5t)^2]^(3/2) dt

= K(4+4t + 9t + 25t) / [(2+2t)^2 + (3t)^2 + (5t)^2]^(3/2) dt

= 38Kt / [(2+2t)^2 + (3t)^2 + (5t)^2]^(3/2) dt

Thus, the work done is:

W = ∫ F(r(t)) · dr(t) from t=0 to t=1

= ∫0^1 38Kt / [(2+2t)^2 + (3t)^2 + (5t)^2]^(3/2) dt

This integral is difficult to solve exactly, so we can use numerical methods or software to obtain an approximation.

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Gursoy's purchase level should be 0.3.

According to the given data, we have the following:

Mean demand, μ = 100

Standard deviation, σ = 30

Purchase price = $10

Selling price = $25

Hence, Cost of under-ordering, Cu = $25 - $10 =$15

Cost of over-ordering, Co = $10 + $25 =$35

Therefore, the calculation of optimal purchase level is calculated as follows:

purchase level = Cu / (Cu + Co)

purchase level = $15 / ($15 + $35)

purchase level = $15 / $50

purchase level = 0.3

The purchase level would be 0.3.

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The sample size increases, the probability of obtaining a sample mean less than 3500 decreases. The mean of the sample mean distribution is equal to the population mean, which is 7500.

a) The probability that, on a single test, x is less than 3500 can be calculated using the standard normal distribution. We need to standardize the value using the z-score formula: z = (x - μ) / σ. Substituting the given values, we get z = (3500 - 7500) / 1750 ≈ -2.286.

Using a standard normal distribution table or a calculator, we can find the probability associated with a z-score of -2.286. The probability is approximately 0.0116, or 1.16%. Therefore, there is a 1.16% chance that a single test result will be less than 3500, indicating leukopenia.

(b) When the doctor uses the average x (sample mean) for two tests taken about a week apart, the probability distribution of x (sample mean) follows a normal distribution. The mean of the sample mean distribution is equal to the population mean, which is 7500. The standard deviation of the sample mean distribution is equal to the population standard deviation divided by the square root of the sample size. In this case, the sample size is 2.

The probability distribution of x (sample mean) < 3500 can be calculated by standardizing the value using the z-score formula and then finding the corresponding probability from the standard normal distribution table or a calculator. With two tests, the probability distribution will be narrower compared to a single test. The exact probability depends on the specific value of the sample mean and the standard deviation of the sample mean distribution.

(c) When considering three tests taken a week apart, the process is similar to part (b). The mean of the sample mean distribution remains the same at 7500, but the standard deviation of the sample mean distribution is now divided by the square root of 3, since the sample size is 3. As the sample size increases, the standard deviation of the sample mean distribution decreases, resulting in a narrower distribution.

The probability distribution of x (sample mean) < 3500 can be calculated using the z-score formula and finding the corresponding probability from the standard normal distribution table or a calculator. With three tests, the probability distribution will be even narrower compared to two tests.

In summary, as the sample size increases, the probability of obtaining a sample mean less than 3500 decreases. With more tests, we can have greater confidence in the accuracy of the sample mean and draw stronger conclusions about the individual's condition. If a person had a sample mean less than 3500 based on three tests, it would indicate a higher level of certainty about the presence of leukopenia, potentially leading to further investigation or treatment options.

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Answer:

580 cm

Step-by-step explanation:

To find the surface area you just need to find the area of every side of the box and add them together.

SO- the equation for this would be

SA (Surface Area) = 2(20 x 10) + 2(20 x 3) + 2(10 x 3)

SA = 2(200) + 2(60) + 2(30)

SA = 400 + 120 + 60

SA = 520 + 60

SA = 580

The function of f(u) = cos(u)` and `g(x) = sin x`.

We are to write the function `y = cos(sin x)` below in the form `y = f(u)` and `u = g(x)`.

Then, we need to find `dy/dx` as a function of `x`.

Function `y = cos(sin x)` can be written as: `y = f(u)`, where `u = sin x` and `f(u) = cos(u)`.

Thus, `f(u) = cos(sin x)` and `u = sin x`.

Hence, `f(u) = cos(u)` and `g(x) = sin x`.

Now, we can apply the chain rule of differentiation to find `dy/dx` as a function of `x`.

The chain rule states that if `y = f(u)` and `u = g(x)`, then `dy/dx = dy/du * du/dx`.

Here, `f(u) = cos(u)` and `g(x) = sin x`. Thus, `dy/du = -sin(u)` and `du/dx = cos x`.

Therefore, `dy/dx = dy/du * du/dx = -sin(u) * cos x = -sin(sin x) * cos x`.

Thus, `dy/dx = -sin(sin x) * cos x`.

Hence, the functions `f(u)` and `g(x)` are: `f(u) = cos(u)` and `g(x) = sin x`.

Therefore, we have `y = cos(sin x)` in the form `y = f(u)` and `u = g(x)`.

Finally, `dy/dx` as a function of `x` is `-sin(sin x) * cos x`.

Thus, `f(u) = cos(u)` and `g(x) = sin x`.

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In order to calculate the value of the expression 1.4 * 0.2 * 1.8, first let's calculate the product of the first two numbers.

To multiply 1.4 by 0.2, we can first multiply 1.4 by 2 and then divide the result by 10:

Now we can calculate the product of 0.28 and 1.8.

To do so, we can multiply 0.28 by 18 and then divide the result by 10:

So the final result of the expression is 0.504.

Answer:

3. y = 2x - 2

4. y = \(\frac{4}{3}x-1\)

Step-by-step explanation:

3. Slope = 2

Y-intercept = -2

4. Slope = \(\frac{4}{3}\)

Y-intercept = -1

Answer:

3). y = 2x - 2

4). y = (4/3)x - 1

Step-by-step explanation:

3).

First find the slope

(y2 - y1) / (x2 - x1)  or rise/run

(0 - (-2)) / (1 - 0) = 2

2 is your slope

Now use the equation below for using coordinates for finding slope intercept form.

y - y1 = m(x - x1)

y1 = y number of given coordinate

x1 = x number of given coordinate

m = slope

y - 0 = 2(x - 1)

Distribute

y - 0 = 2x + (-2)

Get y by itself by adding 0 to both sides.

y - 0 = 2x + (-2)

  +0           +0

y = 2x - 2

4).

Repeat the same process for 4 as done in 3

Find the slope

(y2 - y1) / (x2 - x1)  or rise/run

(3 - (-1)) / (3 - 0) = 4/3

4/3 is your slope

Now use the equation below for using coordinates for finding slope intercept form.

y - y1 = m(x - x1)

y1 = y number of given coordinate

x1 = x number of given coordinate

m = slope

y - 3 = (4/3)(x - 3)

Distribute

y - 3 = (4/3)x + (-4)

Get y by itself by adding 3 to both sides.

y - 3 = (4/3)x + (-4)

  +3                  +3

y = (4/3)x - 1

Answer: Option B

She should use the fact that the

opposite sides of a parallelogram are

congruent and then use the

Pythagorean theorem.

We cannot use the diagonals of square property because this is a rectangle, opposite angles will also not work, and we cannot use the diagonal property because thats what we have to prove.

Must click thanks and mark brainliest

Answer:

The solution is given below.

Step-by-step explanation:

Given that

a) 7.9 ÷ 1000

b ) 26.3 ÷ 1000

c) 38.53 ÷ 1000

We need to find out their answers

So,

for a)

= 7.9 ÷ 1000

= 0.0079

b)

= 26.3 ÷ 1000

= 0.0263

c)

= 38.53 ÷ 1000

= 0.03853

Basically we divided the number and it comes in decimal form

Answer: 2/9

Step-by-step explanation:

Answer:

r=85

Step-by-step explanation:

r-76=9

add 76 to both sides

r=85

hope this is helpful

Answer: 85

Step-by-step explanation:

Since we're finding the placeholder of r and we're already subtracting, we need to add! What we need to do is add 76 + 9 which equals 85!

Hope this helps you! Good luck with your future work!

Answer:

they both have the same angles

Step-by-step explanation:

The value of 2 1/2 kilograms to mass in grams is 2500 grams

To determine the value of the mass in grams, we need to know the conversion factor is;

1 gram = 1000 kilograms

1 ounce=  28.3495 grams.

1 ounce =  0.028 kilogram

From the information given, we have that;

2 1/2 kilogram kilogram is;

2. 5 kg

If 1000grams = 1 kilogram

Then x grams = 2.5 kilograms

Cross multiply the values, we have;

x = 2.5(1000)

Multiply the values, we have;

x = 25000 grams

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Complete question:

Convert 2 ½ kilograms to mass in grams

Answer:

Let's establish that the LCM between the two is 20, so now we need to multiply our numerators by the same numbers used to multiply the denominators.

3(5)/20 - 3(2)/20 = (15-6)/20 = 9/20

So, the y-value of the solution to the system of equations 3x + 5y = 17 and 4x + 4y = -13 is not possible to find, because the system is inconsistent and has no solution.

To find the y-value of the solution to the system of equations 3x + 5y = 17 and 4x + 4y = -13, we can use one of the methods for solving systems of equations, such as substitution, elimination, or graphing. In this case, we will use elimination method.

The first step of elimination method is to eliminate one of the variables by adding or subtracting the equations. In this case, we will multiply the first equation by 4 and the second equation by -3 and add them:

4(3x + 5y) = 4(17)

12x + 20y = 68

-3(4x + 4y) = -3(-13)

-12x - 12y = 39

then we can add these two equations:

12x + 20y = 68

-12x - 12y = 39

0 = 29

This is an impossible equation, which means that the system has no solution.

Therefore, the y value of the solution to the system of equations 3x + 5y = 17 and 4x + 4y = -13 is not possible to find, because the system is inconsistent and has no solution.

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Answer:

C

Step-by-step explanation:

I tried my best, The coin has 2 outcomes and the dice has 6 so 6 times 2 is 12