in a distribution with positive skew, scores with the highest frequencies are select one: a. on the right side of the distribution b. represented at two distinct peaks c. in the middle of the distribution d. on the left side of the distribution

Answer:

A

Step-by-step explanation:

You should simplify this, here \(i\) is like a variable.

Now here you just simplify the variables and calculate the numbers.

\(7-8 = -1\)

\(3i+9i=12i\)

equals

\(-1+12i\) which is "A"

I hope it helps you. Please choose my answer as the BRAINLIEST

Answer:

nice thats my last name but I do not understand the question

Step-by-step explanation:

Answer: what is the main question?

Step-by-step explanation:

Answer: MHT = 125; AHM = 55

Step-by-step explanation:

(2x + 11) + (6x - 7) = 180 since they are supplementary angles

8x + 4 = 180 ---- subtract 4 on both sides

8x = 176 ---- divide by 8 on both sides

x = 22

MHT = 6x - 7

6(22) - 7 = 132 - 7 = 125

AHM = 2x + 11

2(22) + 11 = 44 + 11 = 55

A light rail system can be described as a smaller rail-based transportation system that is powered by electricity, providing efficient and sustainable urban transit options for passengers.

A light rail system refers to a smaller rail-based transportation system that operates within urban or suburban areas. It typically consists of light rail vehicles (LRVs) that run on tracks, similar to a traditional railway system. However, light rail systems are designed to serve shorter distances and provide more frequent stops compared to heavy rail systems.

One distinguishing characteristic of a light rail system is that it is powered by electricity. The LRVs usually run on overhead electrical wires or through an electrified third rail system. This electric power source allows for a more sustainable and environmentally-friendly mode of transportation.

Light rail systems are often integrated into the existing urban infrastructure and provide convenient and efficient transportation options for commuters. They offer a balance between the capacity of traditional heavy rail systems and the flexibility of buses. Light rail vehicles can accommodate a significant number of passengers and operate on fixed routes, offering a reliable and comfortable mode of public transportation.

Overall, a light rail system can be described as a smaller rail-based transportation system that is powered by electricity, providing efficient and sustainable urban transit options for passengers.

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Answer:

2,3,5

Step-by-step explanation:

Answer:

B. C. E

Step-by-step explanation:

The annual growth factor represents the rate at which an investment grows each year. It is calculated by adding 1 to the growth rate expressed as a decimal.

In this case, the investment is growing by 7.5% each year. To express this as a decimal, we divide 7.5 by 100, which gives us 0.075. The annual growth factor is then calculated by adding 1 to the growth rate: 1 + 0.075 = 1.075.

Therefore, the annual growth factor is 1.075. This means that the investment grows by a factor of 1.075 each year, which corresponds to a 7.5% increase from the previous year's value.

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Answer: 1/10

Step-by-step explanation:

2/5 x 1/4= 1/10

keep, change, flip

b. i) The probability of winning all three matches is 1/27.

ii) The probability of winning more times than losing is 3/27.

iii) 7/27

iv) 2/27

c. many factors that can influence the outcome of a match such as the skill of the players, the tactics used by the teams and the condition of the playing surface.

Probability is calculated by dividing the number of favorable outcomes by the total number of possible outcomes.

a. Tree diagram:

Match 1   | Match 2   | Match 3

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

Win       | Win       | Win

Draw      | Draw      | Draw

Lose      | Lose      | Lose

b. i) The probability of winning all three matches is P(Win, Win, Win) = (1/3) * (1/3) * (1/3) = 1/27

ii) The probability of winning more times than losing is

P(Win, Win, Draw) + P(Win, Draw, Win) + P(Draw, Win, Win)

= (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3)

= 3/27

iii) The probability of losing at least one match is

P(Lose, Win, Win) + P(Win, Lose, Win) + P(Win, Win, Lose) + P(Lose, Lose, Win) + P(Lose, Win, Lose) + P(Win, Lose, Lose) + P(Lose, Lose, Lose)

= (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3)

= 7/27

iv) The probability of either drawing or losing all three matches is

P(Draw, Draw, Draw) + P(Lose, Lose, Lose)

= (1/3) * (1/3) * (1/3) + (1/3) * (1/3) * (1/3)

= 2/27

c. It is not very realistic to assume that the outcomes are equally likely in this case because there are many factors that can influence the outcome of a match such as the skill of the players, the tactics used by the teams and the condition of the playing surface.

Therefore, it is unlikely that all outcomes are equally likely as assumed in this case.

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The system defined by the impulse response h(n) = 28(n+3) + 28n + 28(n-3) can be represented as h(n) = 28δ(n+3) + 28δ(n) + 28δ(n-3), where δ(n) denotes the unit impulse function.

In terms of causality, we can determine whether the system is causal by examining the impulse response. If the impulse response h(n) is non-zero only for n ≥ 0, then the system is causal. In this case, since the impulse response h(n) is non-zero for n = -3, 0, and 3, the system is not causal.

To determine the stability of the system, we need to examine the summation of the absolute values of the impulse response. If the summation is finite, the system is stable. In this case, we can calculate the summation as ∑|h(n)| = 28 + 28 + 28 = 84, which is finite. Therefore, the system is stable.

However, since the impulse response is given in the time domain and not in a closed-form expression, it is not possible to directly determine the frequency response without further manipulation or additional information.

Given the absence of specific frequency domain information or a closed-form expression for the frequency response, it is not possible to accurately represent the module and phase of the system H(e^ω) without further calculations or additional details about the system.

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Answer:

x= 4

Step-by-step explanation:

3x + 7 = 5x - 1

combine the like numbers: add 1 to the other side, isolating 5x

3x + 8 = 5x

Subtract 3x from 5x, isolating 8

8 = 2x

divide

4 = x

Check if it works

3(4) + 7 = 5(4) - 1

19 = 19

Yes, it is correct

To write each vector in trigonometric form, we need to express them in terms of magnitude and angle.

18. \(\( \mathbf{b} = (\sqrt{19}, -4) \)\)

The magnitude of vector \(\( \mathbf{b} \) is \( \sqrt{(\sqrt{19})^2 + (-4)^2} = \sqrt{19 + 16} = \sqrt{35} \).\)

The angle of vector \(\( \mathbf{b} \)\) with respect to the positive x-axis can be found using the arctan function:

\(\( \mathbf{b} \) is \( \sqrt{35} \, \text{cis}(\arctan\left(\frac{-4}{\sqrt{19}}\right)) \).\)

So, the trigonometric form of vector \(\( \mathbf{b} \) is \( \sqrt{35} \, \text{cis}(\arctan\left(\frac{-4}{\sqrt{19}}\right)) \).\)

19. \(\( \mathbf{r} = 16i + 4j \)\)

The magnitude of vector \(\( \mathbf{r} \) is \( \sqrt{(16)^2 + (4)^2} = \sqrt{256 + 16} = \sqrt{272} = 16\sqrt{17} \).\)

The angle of vector \(\( \mathbf{r} \)\) with respect to the positive x-axis is 0 degrees since the vector lies along the x-axis.

So, the trigonometric form of vector \(\( \mathbf{r} \) is \( 16\sqrt{17} \, \text{cis}(0^\circ) \).\)

20.  \(\( \mathbf{k} = 4\sqrt{2}i - 2j \)\)

The magnitude of vector \(\( \mathbf{k} \) is \( \sqrt{(4\sqrt{2})^2 + (-2)^2} = \sqrt{32 + 4} = \sqrt{36} = 6 \).\)

The angle of vector \(\( \mathbf{k} \)\) with respect to the positive x-axis can be found using the arctan function:

\(\( \theta = \arctan\left(\frac{-2}{4\sqrt{2}}\right) \)\)

So, the trigonometric form of vector \(\( \mathbf{k} \) is \( 6 \, \text{cis}(\arctan\left(\frac{-2}{4\sqrt{2}}\right)) \).\)

21. \(\( \overrightarrow{CD} \) with C(2, 10) and D(-3, 8)\)

To find the vector \(\( \overrightarrow{CD} \)\), we subtract the coordinates of point C from the coordinates of point D:

\(\( \overrightarrow{CD} = \langle -3 - 2, 8 - 10 \rangle = \langle -5, -2 \rangle \)\)

The magnitude of vector \\(( \overrightarrow{CD} \) is \( \sqrt{(-5)^2 + (-2)^2} = \sqrt{29} \).\)

The angle of vector \(\( \overrightarrow{CD} \)\) with respect to the positive x-axis can be found using the arctan function:

\(\( \theta = \arctan\left(\frac{-2}{-5}\right) = \arctan\left(\frac{2}{5}\right) \)\)

So, the trigonometric form of vector \(\( \overrightarrow{CD} \) is \( \sqrt{29} \, \text{cis}(\arctan\left(\frac{2}{5}\right)) \).\)

22. overnighter \({TU} \) with T(-3, -4) and U(3, 8)\)

To find the vector we subtract the coordinates of point T from the coordinates of point U:

\(\( \overrightarrow{TU} = \langle 3 - (-3), 8 - (-4) \rangle = \langle 6, 12 \rangle \)\)

The magnitude of vector \(\( \overrightarrow{TU} \) is \( \sqrt{(6)^2 + (12)^2} = \sqrt{36 + 144} = \sqrt{180} = 6\sqrt{5} \).\)

The angle of vector \(\( \overrightarrow{TU} \)\) with respect to the positive x-axis can be found using the arctan function:

\(\( \theta = \arctan\left(\frac{12}{6}\right) = \arctan(2) \)\)\(\( \overrightarrow{TU} \),\)

So, the trigonometric form of vector \(\( \overrightarrow{TU} \) is \( 6\sqrt{5} \, \text{cis}(\arctan(2)) \).\)

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9514 1404 393

Answer:

  400; building and equipment fixed cost

Step-by-step explanation:

The cost equation has two terms. The constant term (400) is the daily fixed cost of building and equipment. The variable term (175p) represents the cost of producing p phones.

The y-intercept is 400. It is the daily fixed cost of the building and equipment.

Answer:

The y-intercept of the function is 400 which represents the fixed cost for rent and equipment.

Step-by-step explanation:

Since Parker must pay $400 even to make 0 phones, that means $400 is the fixed cost that Parker must pay for rent and equipment regardless of the number of phones produced.

Have a good day :)

The probability that the sample proportion will be less than 0.1 is 1.0000.

To find the probability that the sample proportion will be less than 0.1 when a direct mail company samples 276 people and the true proportion is 0.06, we can use the normal approximation for the binomial distribution. Here are the steps:

1. Calculate the mean (μ) and standard deviation (σ) of the binomial distribution.
  μ = n * p = 276 * 0.06 = 16.56
  σ = √(n * p * (1 - p)) = √(276 * 0.06 * 0.94) ≈ 3.94

2. Convert the sample proportion to a z-score.
  z = (x - μ) / σ = (0.1 * 276 - 16.56) / 3.94 ≈ 7.01

3. Use a z-table or calculator to find the probability corresponding to this z-score. Since we want the probability that the sample proportion is less than 0.1, we look up the area to the left of the z-score.
  P(z < 7.01) ≈ 1.0000 (almost certain)

The probability that the sample proportion will be less than 0.1 when 276 people are sampled is approximately 1.0000, or almost certain.

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Answer:

D.

Step-by-step explanation:

a) The z-score corresponding to the probability of 0.2000 to the right is z = 0.84.

b) The z-score corresponding to the probability of 0.9000 to the left is z = -1.28.

a) To find the z-score corresponding to a probability of 0.2000 to the right, we need to use the fact that the area under the standard normal distribution to the right of z is equal to 1 minus the area to the left of z.

In other words, we need to find the z-value such that the area to the left of it is equal to 1 - 0.2000 = 0.8000. Consulting a standard normal distribution table or using a calculator, we find that this z-value is approximately 0.84. Therefore, the answer is z = 0.84.

b) Similarly, to find the z-score corresponding to a probability of 0.9000 to the left, we need to find the z-value such that the area to the left of it is equal to 0.9000. Consulting a standard normal distribution table or using a calculator, we find that this z-value is approximately 1.28. Therefore, the answer is z = -1.28.

In both cases, we used the fact that the standard normal distribution has a mean of 0 and a standard deviation of 1, and we transformed the probability into an area under the curve.

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Complete question is:

For a standard normal random variable, what z-score has:

a) probability 0.2000 to the right? z = _____  

b) probability 0.9000 to the left? z = _________        

Answer: 9 quarters and 14 nickels

Step-by-step explanation:

9*25=225

14*5=70

225+70=295

The total number of nickels is 14 and the total number of quarters is 9 and this can be determined by forming the linear equation.

Given :

kate has $2.95 in quarters and nickels and the total number of coins is 23.

The following steps can be used in order to determine the total number of quarters and nickels Kat have:

Step 1 - Let the total number of quarters be 'x' and the total number of nickels be 'y'.

Step 2 - Remember one quarter is equal to $0.25 and one nickel is $0.05.

Step 3 - The total amount of money Kat has:

0.25x + 0.05y = 2.95  --- (1)

Step 4 - Total number of coins is given by:

x + y = 23

x = 23 - y    --- (2)

Step 5 - Substitute the value of 'x' in equation (1).

0.25(23 - y) + 0.05y = 2.95

5.75 - 0.25y + 0.05y = 2.95

2.8 = 0.20y

y = 14

Step 6 - Now, substitute the value of 'y' in equation (2).

x = 23 - 14

x = 9

So, the total number of nickels is 14 and the total number of quarters is 9.

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Answer:

3 ???

Step-by-step explanation:

Answer:

The vertex is (5, -9).

Step-by-step explanation:

One way of approaching this problem consists of finding the roots.  Seet the quadratic equal to zero and solve for x:  {2, 8}.

The axis of symmetry is exactly halfway between 2 and 8:  x = 5.

Now find the y-component of the vertex by evaluating f(5):

f(5) = (5 - 8)(5 - 2) = -9

The vertex is (5, -9).  This is the minimum value of the function.  The graph of this quadratic opens up.

The arc length of the sector with a radius of 10 inches and a central angle of theta = 100° can be found using the formula L = rθ, where r is the radius and θ is the central angle measured in radians. To find the area of the sector, we use the formula A = (1/2)r^2θ.

To find the arc length of the sector, we use the formula L = rθ, where r is the radius and θ is the central angle measured in radians. Since the central angle is given in degrees, we need to convert it to radians first. We know that 360° is equal to 2π radians, so 100° is equal to (100/360) * 2π radians, which simplifies to approximately 0.8727 radians.

Substituting r = 10 and θ = 0.8727 into the formula L = rθ, we get L = 8.727 inches. Therefore, the arc length of the sector is approximately 8.727 inches.

To find the area of the sector, we use the formula A = (1/2)r^2θ. Substituting r = 10 and θ = 0.8727 into the formula, we get A = (1/2)(10^2)(0.8727), which simplifies to approximately 43.635 square inches. Therefore, the area of the sector is approximately 43.635 square inches.

In conclusion, the arc length of the sector with a radius of 10 inches and a central angle of theta = 100° is approximately 8.727 inches, and the area of the sector is approximately 43.635 square inches.

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Answer:

all you have to do is Just divided the numbers

Step-by-step explanation:

÷

Answer:

y = 3x - 9

Step-by-step explanation:

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Here m = 3 , thus

y = 3x + c ← is the partial equation

To find c substitute (4, 3) into the partial equation

3 = 12 + c ⇒ c = 3 - 12 = - 9

y = 3x - 9 ← equation of line

Answer:

18 weeks

Step-by-step explanation:

So, Hugo received $100 for his birthday.

He saved $20 per week. Let x denote the weeks that passed. Therefore:

\(y=100+20x\)

This equation represents the total money y Hugo has after x weeks.

The printer cost $460. Thus, set y to $460:

\(460=100+20x\)

Solve for x.

Subtract 100 from both sides:

\(360=20x\)

Divide both sides by 20:

\(x=18\)

Therefore, it took Hugo 18 weeks to save up $460.

Answer:

D

Step-by-step explanation:

Proportional relationships are straight lines that go through the point (0,0)

Graph D is the only straight line that goes through (0,0)

Answer:

C

Step-by-step explanation:

Since the graph of the function C is a straight line that passes through the origin (0,0). These are caracterisctics of proportional relationships

Answer:

1. 2/3 or 66.7%

2. 3/5 or 60%

3. 6

4. 1/6 or 16.7%

5. 2/5 or 40%

Step-by-step explanation:

12. MATLAB code: `f = (-3*t.^2 + 5*t + 20).*(t < 0) + (3*t.^2 + 5*t).*(t >= 0)`

13. MATLAB function: `function random_values = UniGen(n, a, b); random_values = (b - a) * rand(n, 1) + a; end`

MATLAB code to calculate f(t) using the given equation:

t = -9:0.5:9; % Generate values of t from -9 to 9 in steps of 0.5

f = zeros(size(t)); % Initialize f(t) vector

for i = 1:numel(t)

   if t(i) < 0

       f(i) = -3*t(i)^2 + 5*t(i) + 20;

   else

       f(i) = 3*t(i)^2 + 5*t(i);

   end

end

% Display the results

disp('t    f(t)');

disp('--------');

disp([t' f']);

```

This code generates values of `t` from -9 to 9 in steps of 0.5 and calculates `f(t)` based on the given equation. The results are displayed in a tabular format showing the corresponding values of `t` and `f(t)`.

13. MATLAB function UniGen to generate uniformly distributed random values:

function random_values = UniGen(n, a, b)

   % n: Number of random values to generate

   % a: Start of the interval

   % b: End of the interval

   random_values = (b - a) * rand(n, 1) + a;

end

This MATLAB function named `UniGen` generates `n` random values that are uniformly distributed on the interval `[a, b]`. It utilizes the `rand` function to generate random values between 0 and 1, which are then scaled and shifted to fit within the specified interval `[a, b]`. The generated random values are returned as a column vector.

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The reduced cost matrix for travelling salesperson problem in the given instance is shown below. The Travelling Salesperson Problem (TSP) is a classical combinatorial optimization issue that belongs to the category of NP-Hard problems.

This problem can be resolved using a branch and bound algorithm or by using dynamic programming.The reduced cost matrix for the given travelling salesperson problem instance The computation of the reduced cost matrix for travelling salesperson problem involves two steps: Identify the smallest element of each row and subtract the value from all the values in the row.

Identify the smallest element of each column and subtract the value from all the values in the column.In the given instance, the smallest element of each row is highlighted in bold. Therefore, after performing Step 1 the matrix becomes the matrix becomes Hence, the reduced cost matrix for the travelling salesperson problem is obtained.

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Answer:

Business: Starbucks Corporation

Resource Market: Coffee farmers

Household: Starbucks customers

Product Market: Starbucks stores

Resource from a resource market that a business used: Coffee beans

Productive resource (labor) that a household supplied to a resource market: Starbucks customers' labor in the form of wages

Expenditure a household made by buying a product: Starbucks customers' expenditure on coffee and other products

Product a household bought from the product market: Coffee and other products from Starbucks stores

Revenue a business made from the product market: Starbucks Corporation's revenue from the sale of coffee and other products

A good or service a business provided to the product market: Starbucks Corporation's provision of coffee and other products to its customers

Circular Flow Diagram:

Households --> Product Market --> Business --> Resource Market --> Households