write an expression for: 4 less than a product of 5 and p

Answit is d have a good day

Step-by-step explanation:

Answer:

14

Step-by-step explanation:

   45 : 30

(x+8) : (3x-9)

- so, when you multiply 30*(x+8) and 45*(3x-9)

135x - 405 = 30x +240

- rearrange and solve and you get x= 6 (rounded off)

- replace x by 6 in (x+6)

= 14

Answer:

A

Step-by-step explanation:

Group like-terms, that is move the numbers to one side of the sign.

Then, divide both sides by 2

Answer:

two and a half

Step-by-step explanation:

The number 175 in Annie's equation represents the cost per hour per semester for classwork.

This means that for every additional hour of classwork a college student takes per semester, their fee increases by $175. It is important to note that this cost does not include the cost for housing, which is represented by the constant term of the equation, 3375. Therefore, the equation allows us to calculate the total fee a college student would pay for a semester based on the number of hours of classwork they take and the cost per hour.

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Hi student, let me help you out! :)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

We are asked to simplify the expression 2(7x+3)+9x.

\(\triangle~\fbox{\bf{KEY:}}\)

So, let's compute...

\\\////\\\///\\\///\\\///\\\///\\\///\\\///\\\///\\\\///\\\////\\\///\\\///\\\///\\\///\\\///\\\//\\//\\\/

After performing multiplication we obtain

\(\star~\mathrm{14x+6+9x}\)

Now add 9x:

\(\star~\mathrm{23x+6}\)

Hope it helps you out! :D

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~Just a smiley person helping fellow students :)

The diver's velocity during the first 2 sec of fall using the modified Euler method with Ar= 0.2 is 62.732 mph.

Given data: Initial velocity, u = 0 ft/sec

Acceleration, a = g = 32.2 ft/sec²

The maximum rate of fall, vmax = 80 mph

Time, t = 2 seconds

Air resistance constant, Ar = 0.2

We are supposed to determine the sky diver's velocity during the first 2 seconds of fall using the modified Euler method.

The governing equation for the velocity of the skydiver is given by the following:

ma = -m * g + k * v²

where, m = mass of the skydive

r, g = acceleration due to gravity, k = air resistance constant, and v = velocity of the skydiver.

The equation can be written as,

v' = -g + (k / m) * v²

Here, v' = dv/dt = acceleration

Hence, the modified Euler's formula for the velocity can be written as

v1 = v0 + h * v'0.5 * (v'0 + v'1)

where, v0 = 0 ft/sec, h = 2 sec, and v'0 = -g + (k / m) * v0² = -g = -32.2 ft/sec²

As the initial velocity of the skydiver is zero, we can write

v1 = 0 + 2 * (-32.2 + (0.2 / 68.956) * 0²)0.5 * (-32.2 + (-32.2 + (0.2 / 68.956) * 0.5² * (-32.2 + (-32.2 + (0.2 / 68.956) * 0²)))

v1 = 62.732 mph

Therefore, the skydiver's velocity during the first 2 seconds of fall using the modified Euler method with Ar= 0.2 is 62.732 mph.

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The answer is letter C. The graph of g is 3 units above the graph of h.​

Note: A vertical translation is generally given by the equation y= f(x) + b. In this example, g(x) = x^2 + 3, the +3 means to move the graph of x^2 up by 3 units. Thus, The graph of g is 3 units above the graph of h.

I believe it would be x = 0.

Hope this helps!

At a production level of 20 cars and 10 trucks (x = 20, y = 10), the marginal cost of manufacturing cars is:

∂Z/∂x = 7000 - 0.1 * 10 = 7000 - 1 = 6999 dollars.

The ordered triple (x, y, z) is (20, 10, 200).

a) The marginal cost of manufacturing cars can be found by taking the partial derivative of the cost function with respect to x:

∂Z/∂x = 7000 - 0.1y

At a production level of 20 cars and 10 trucks (x = 20, y = 10), the marginal cost of manufacturing cars is:

∂Z/∂x = 7000 - 0.1 * 10 = 7000 - 1 = 6999 dollars.

b) The marginal cost of manufacturing trucks can be found by taking the partial derivative of the cost function with respect to y:

∂Z/∂y = 3000 - 0.1x

At a production level of 20 cars and 10 trucks (x = 20, y = 10), the marginal cost of manufacturing trucks is:

∂Z/∂y = 3000 - 0.1 * 20 = 3000 - 2 = 2998 dollars.

To solve the optimization problem using Lagrange multipliers, we need to define the Lagrangian function:

L(x, y, λ) = xy + λ(x + 2y - 40)

Taking the partial derivatives of L with respect to x, y, and λ, and setting them equal to zero, we get the following equations:

∂L/∂x = y + λ = 0 (1)

∂L/∂y = x + 2λ = 0 (2)

∂L/∂λ = x + 2y - 40 = 0 (3)

Solving this system of equations, we can find the values of x, y, and λ.

From equation (1), y = -λ (4)

From equation (2), x = -2λ (5)

Substituting equations (4) and (5) into equation (3), we get:

-2λ + 2(-λ) - 40 = 0

-2λ - 2λ - 40 = 0

-4λ = 40

λ = -10

Substituting λ = -10 into equations (4) and (5), we get:

y = -(-10) = 10

x = -2(-10) = 20

The maximum value of z = f(x, y) = xy is obtained at (x, y) = (20, 10).

Therefore, the maximum value is z = f(20, 10) = 20 * 10 = 200.

The ordered triple (x, y, z) is (20, 10, 200).

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The corrrect statements about angle are:

Please refer to the attached picture below for visualization of the angles.

Based on the attached picture, we can consider the relationship of each angle, such as:

Alternate interior angles and congruent:

Angle 4 and angle 5

Angle 3 and angle 6

Alternate exterior angles and congruent:

Angle 1 and angle 8

Angle 2 and angle 7

Consecutive interior angles and supplementary:

Angle 3 and angle 5

Angle 4 and angle 6

Corresponding angles and congruent:

Angle 1 and angle 5

Angle 2 and angle 6

Angle 3 and angle 7

Angle 4 and angle 8

Vertical angles and congruent:

Angle 1 and angle 4

Angle 2 and angle 3

Angle 5 and angle 8

Angle 6 and angle 7

Supplementary angles:

Angle 1 and angle 2

Angle 3 and angle 4

Angle 5 and angle 6

Angle 7 and angle 8

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The required strength of the doublet for the flow past a cylinder can be determined using the given information. In this case, we assume the flow to be inviscid, irrotational, and incompressible. The stream function for a uniform flow in the horizontal direction is given by ψ = Uy, where U represents the velocity of the uniform flow and y is the vertical coordinate.

To determine the strength of the doublet, we can use the stream function for a doublet, which is given by ψ = -2πKr sin(θ), where K represents the strength of the doublet and θ is the polar angle. The negative sign indicates that the streamlines are clockwise around the doublet.

The flow past a cylinder can be represented by the combination of a uniform flow and a doublet. The doublet is introduced to simulate the circulation around the cylinder. By matching the flow conditions at the surface of the cylinder, we can determine the strength of the doublet required.

To calculate the strength of the doublet, we equate the stream function of the uniform flow at the surface of the cylinder (ψ_uniform) to the sum of the stream function of the doublet and the stream function of the uniform flow (ψ_doublet + ψ_uniform). By solving this equation, we can find the value of K, the strength of the doublet.

In summary, to determine the required strength of the doublet for the flow past a cylinder, we need to solve the equation that equates the stream function of the uniform flow to the sum of the stream function of the doublet and the stream function of the uniform flow. Solving this equation will provide us with the value of the strength of the doublet, which represents the circulation around the cylinder.

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The shape of the distribution of the number of siblings can vary depending on the specific data set.

However, if we are considering the general case, the most common shape of the distribution is likely to be unimodal and skewed to the right.

This means that the majority of individuals are likely to have fewer siblings,

and as the number of siblings increases,

the frequency of individuals with that number decreases.

The distribution may also have a long tail on the right side,

indicating a few individuals with a significantly larger number of siblings.

However, it is important to note that this is just a general observation, and in specific cases,

the distribution may be different.

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In 1990, the average person in the United States consumed approximately 0.000532 lb (or 0.24 grams) of artificial sweeteners per year, based on USDA data.

In 1990, according to the USDA, each person in the United States consumed an average of 133 lb of artificial sweeteners per year.
To calculate the average consumption of artificial sweeteners per person, you can divide the total consumption by the population of the United States in 1990.
Let's assume that the population of the United States in 1990 was 250 million people.
To find the average consumption per person, you would divide the total consumption of 133 lb by the population of 250 million people:
133 lb / 250,000,000 people = 0.000532 lb/person
Therefore, in 1990, the average person in the United States consumed approximately 0.000532 lb (or 0.24 grams) of artificial sweeteners per year.

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(i) The set of boundary points of S is {1}.

(ii) There are no interior points in S.

(iii) S is not an open set because it does not contain any interior points.

(iv) S is a closed set because it contains all of its boundary points.

Let's analyze the set S step by step:

(i) Boundary points of S:

A boundary point of a set is a point that is neither an interior point nor an exterior point. In this case, since S consists of the elements x = 1 - 1/n for n = 1, 2, 3, ..., we can see that as n approaches infinity, x approaches 1. So, the set of boundary points of S is {1}.

(ii) Interior points of S:

An interior point of a set is a point that has an open neighborhood contained entirely within the set.

In this case, since S is defined as x = 1 - 1/n for n = 1, 2, 3, ..., we can see that as n increases, x approaches 1.

However, for any n, we can always find another n' greater than n such that 1 - 1/n' is closer to 1.

Therefore, there are no interior points in S.

(iii) S as an open set:

An open set is a set that contains all of its interior points.

Since S has no interior points (as discussed in part ii), it cannot contain all of its interior points.

Therefore, S is not an open set.

(iv) S as a closed set:

A closed set is a set that contains all of its boundary points.

In this case, the set of boundary points of S is {1}, and this set is contained within S itself.

Therefore, S contains all of its boundary points and is considered a closed set.

In summary, the set S has a single boundary point {1}, no interior points, is not an open set, and is a closed set.

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Answer:

below

Step-by-step explanation:

Domain is the set of all x values a function can have

 this one goes from    - inf to the asymtope at x = 2

(-∞, 2)     domain

range is the y values the function can have

   looks like 0   to - inf

(- ∞, 0]       ( but it COULD be  ( -∞, 0)    <===cannot tell from graph)

If his growth spurt continued at the same rate Andrew will grow 26/7 inches per month during that growth spurt.

To calculate someone's age, you would subtract their birth year from the current year. For example, if someone was born in 1995 and it is now 2020, their age would be calculated as 2020 - 1995 = 25 years old.

If you have a birthdate, you can use a date calculator to find the exact age in years, months and days.

It's also important to note that, if the person's birthday hasn't occurred yet in the current year, you would subtract the birth year from the current year minus one.

We can start by converting the mixed number 4 1/3 to an improper fraction by multiplying the whole number by the denominator and adding the numerator: 4 x 3 + 1 / 3 = 13/3

To find out how much Andrew grew per month, we need to divide the total growth by the number of months.

13/3 inches / 3 1/2 months = (13/3) / (7/2) = (13/3) x (2/7) = 26/7 inches/month.

So, Andrew grew 26/7 inches per month during that growth spurt.

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Answer:

it is positive

Step-by-step explanation:

Secant is just sec which is positive in quadrant 4

If the terminal side of an angle falls in quadrant  \(IV\), then the secant value is positive .

Quadrant  is a region defined by the two axes (\(x\)-axis and \(y\)-axis) of the coordinate system. When the two axes, \(x\)-axis and \(y\)-axis, intersect each other at \(90 ^0\), the four regions so formed are the quadrants. These regions include both positive and negative values of  \(x\)-axis and \(y\)-axis, called coordinates.

We know that,

In trigonometry, trigonometric functions i.e. Sinθ, Cosθ, Tanθ, Cosecθ, Secθ, Cosecθ, the sign of value of all these trigonometric functions varies in every quadrant.

In first quadrant Sinθ, Cosθ, Tanθ, Cosecθ, Secθ, Cotθ are positive.

In second quadrant Sinθ and Cosecθ are positive.

In third quadrant Tanθ and Cotθ are positive.

In fourth quadrant Cosθ and Secθ are positive.

So, from the above statements we can say that the value of secant in quadrant  \(IV\) is positive .

Hence, we can say that if the terminal side of an angle falls in quadrant  \(IV\), then the secant value is positive .

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Answer:

Answer is C

Step-by-step explanation:

When we do the vertical line test the line intersects (cause its a circle)

This could explain better

Answer:

It is letter C No; the graph fails the vertical line test

Step-by-step explanation:

C is the answer

Answer:

Amount depreciating every year=

$14000×18/100

$252

Total amount in two years

252×2=$504

($14000-504)

Its value in 2yrs

$13496

When Kp = 1.00 at 300K, for X(g) + Y(g) <==> Z(g), where [X] = [Y] = [Z] = 1.0 M, the reaction is in equilibrium.

Therefore the answer is c)  reaction is at equilibrium.

Given the equilibrium constant Kp = 1.00 at 300K, this means that the reaction is already at equilibrium. Therefore, the net reaction will not proceed in any direction. The concentration of all the species X, Y, and Z in the reaction mixture will remain constant. So the answer is [c] reaction is at equilibrium.

It's important to note that the equilibrium constant Kp is the product of the concentration of the products raised to their stoichiometric coefficients divided by the product of the concentration of the reactants raised to their stoichiometric coefficients.

When Kp = 1, it means that the product of the concentrations of the products raised to their stoichiometric coefficients is equal to the product of the concentrations of the reactants raised to their stoichiometric coefficients. Therefore, the reaction is at equilibrium.

--The question is incomplete, answering to the question below--

"In which direction will the net reaction proceed.

X(g) + Y(g) <==> Z(g) … Kp = 1.00 at 300k

for each of these sets of initial conditions?

A) [X] = [Y] = [Z] = 1.0 M

[a] net reaction goes to the left [this one?]

[b] net reaction goes to the right

[c] reaction is at equilibrium"

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Answer:

The term, "variability" describes how far apart data points lie from each other, and from the center of a distribution.

Along with measures of central tendency, measures of variability give you descriptive statistics that summarize your data.

Variability is also referred to as spread, scatter or dispersion.

Example:

The heights of students at Brainly varied from 4 feet and 6 inches tall to 6 feet and 3 inches tall. It varies 1 foot and 9 inches.

To find the mean of the distribution, we simply multiply the probability of getting a son (0.52) by the number of people surveyed (57):

Mean = 0.52 x 57 = 29.64

Rounding to the nearest person, the mean is 30. To find the standard deviation, we can use the formula:
Standard deviation = square root of (p x q x n), Where p is the probability of success (0.52), q is the probability of failure (1 - 0.52 = 0.48), and n is the sample size (57). Standard deviation = square root of (0.52 x 0.48 x 57) = 4.75

Standard deviation (σ) = √(n × p × (1 - p))
σ = √(57 × 0.52 × 0.48)
σ ≈ 3.71 ≈ 4 (rounded to the nearest person)
So, the mean of the distribution is approximately 30 sons, and the standard deviation is approximately 4 sons.

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The 95% confidence interval for the proportion of all Californians who considered moving out of state is (0.504, 0.530). We can be 95% confident that the true proportion of all Californians who considered moving out of state lies between 50.4% and 53.0%.

The UC Berkeley Institute of Governmental Studies conducted a poll in 2019 with 4,527 respondents in California, where 51.7% of them reported considering moving out of the state. The objective is to calculate a 95% confidence interval for the proportion of all Californians who considered moving out of state, given the sample size and proportion.

B. The formula to calculate the confidence interval for a proportion is:

CI = p^ ± z* √[(p^(1-p^))/n]

Where p^ is the sample proportion, n is the sample size, and z* is the critical value of the standard normal distribution for the desired confidence level. For a 95% confidence level, z* = 1.96.

Substituting the given values into the formula, we get:

CI = 0.517 ± 1.96 * √[(0.517*(1-0.517))/4527]

CI = 0.517 ± 0.013

The 95% confidence interval for the proportion of all Californians who considered moving out of state is (0.504, 0.530). Therefore, we can be 95% confident that the true proportion of all Californians who considered moving out of state lies between 50.4% and 53.0%.

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Answer:

Step-by-step explanation:

coordinate points are:

(1,0) , (2,-2) , (0,2) , (-1,0) , (-2,-2)

range = y coordinate

domain = x coorinate

so domain will be {1,2,0,-1,-2}

range will be {0,,2,-2}

Note : Repeated values within the domain or range don't have to be listed more than once.

Answer:\(\color{yellow}{}\)

Coordinate number are:

(1, 0), (2, -2), (0, 2), (-1, 0), (-2,-2)

»»Range = y coordinate

»»Domain = x coordinate

»»So domain will be {1, 2, 0, -1, -2}

Range will be {0, 2, -2

Answer:

The vertex is located on the x-axis between the second and third quadrants

Step-by-step explanation:

Whereby the function is f(x) = (x + 3)², we have;

f(x) = (x + 3)² = x² + 6·x + 9

The vertex, (h, k), of the quadratic function given in general form, a·x² + b·x + c is found as follows;

h = -b/(2·a) and k = f(h)

Therefore by comparison of the given quadratic function and the general form of a quadratic function, we have;

a = 1, b = 6, c = 9

h = -6/(2 × 1) = -3

k = f(-3) = (-3)² + 6 × (-3) + 9 = 0

The vertex (h, k) = (-3, 0)

Therefore, the location of the vertex is on the x-axis axis between the second and the third quadrant.

Answer:

D

Step-by-step explanation:

Answer:

D.)   9 − 2x − 2x2

About the Sample bias ,Measurement bias,Loaded questions, Leading questions , Response bias, Non response bias.

a. Sampling bias example:

Sampling bias is a bias in which a sample is collected in such a way that some members of the intended population are less likely to be included than others. For instance, suppose you want to determine the preferred method of exercising in a town, and you gather data from an exclusive fitness club, a nearby community center, and a high school. You are unlikely to get a representative sample since your sample is only from individuals who are interested in fitness, excluding those who do not go to these locations.

b. Measurement bias example:

Measurement bias happens when a measure systematically over or underestimates a concept. The following is an example: In a survey, people are asked how frequently they exercise. However, the exercise frequency is limited to an hour of running, lifting weights, or yoga. Although swimming, walking, and housework are forms of exercise, they were not included in the survey, resulting in a measurement bias.

c. Loaded questions example: Loaded questions are questions that are phrased in such a way as to lead the respondent to a certain answer or to reveal a certain point of view. For instance, "Don't you think that people who oppose gun control are ignorant and careless?"

d. Leading questions example: Leading questions are questions that are phrased in such a way as to lead the respondent to a certain answer. Here's an example: "Wouldn't you agree that the park needs more security to keep it safe?"

e. Response bias example: Response bias happens when the answers given to survey questions do not represent the actual beliefs of the respondents. For instance, if a survey asks if people always wear a seatbelt while driving, some individuals may say yes even if they frequently forget.

f. Non-response bias example: Non-response bias is the bias that happens when respondents are unable or unwilling to participate in a study. For example, a telephone survey was conducted to inquire about people's sleeping habits. The majority of people who did not respond to the study were night owls who slept during the day, leading to a non-response bias.

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For a taxable income of $1,80,900, the effective tax rate is 21.11%.

Marginal tax is the tax rate applied to an individual’s last dollar of income. It is the additional tax that must be paid on any additional income earned. In other words, it is the tax rate that applies to an individual’s income after all deductions. For example, if an individual’s income is $50,000 and the marginal tax rate is 25%, then the individual must pay an additional $12,500 in taxes on top of the $25,000 in taxes already paid on their $50,000 income.

Marginal tax rates are progressive, meaning that as an individual’s income increases, the marginal tax rate will increase as well. The marginal tax rate is important to understand because it helps individuals determine how much additional income they will need to earn in order to make up for the taxes they will have to pay on that income. It is also important to understand how marginal tax rates can affect tax planning strategies.

To determine the effective tax rate for a taxable income of $180,900, calculate the sum of the marginal tax rates for each tax bracket that the $180,900 falls into. The taxable income of $180,900 is greater than $89,075 and less than $170,050. The marginal tax rates for these two tax brackets are 22% and 24%, respectively. The sum of the marginal tax rates is 46%. Divide the sum by the taxable income of $180,900 to get the effective tax rate of 21.11%. Round the final answer to the nearest hundredth to get 21.11%.

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