help i need help quick I will mark u brainllest

Answer:

I was not able to see the picture, i am so sorry

The line equation for Carmen's donation plan is y + 2x ≤ 460.

Please refer to the attached graph below for the corresponding region.

From the case, we know that:

City youth fund = x

Educational growth foundation = y

Educational growth foundation = 2 city youth fund

Total budget = $460

Based on the case, we know that:

y = 2x --> the slope of the line constraint should be 2

Then, the line equation for this condition should be:

y + 2x ≤ $460

To construct the graph, we need to find the point constraint first.

(y= 0)

(0) + 2x = 460

x = 230 --> (230, 0)

(x = 0)

y + 2(0) = 460

y = 460 --> (0, 460)

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The universal set be the letters a through j: u = {a, b, i, j}. the elements of sets A, B, and C are A = {e, g, h, i} B = {a, b, g, h} C = {a, e, h, j}.

The given list the elements of sets A, B, and C as follows:

A = {e, g, h, i}

B = {a, b, g, h}

C = {a, e, h, j}

Each of these sets is a subset of the universal set U, which contains the letters a through j. Therefore, any element in sets A, B, or C must also be one of these letters.

To summarize:

A = {e, g, h, i}

B = {a, b, g, h}

C = {a, e, h, j}

So the elements of sets A, B, and C are:

A = {e, g, h, i}

B = {a, b, g, h}

C = {a, e, h, j}

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Answer:

36.25

Step-by-step explanation:

You need to find out how much he makes an hour. To do that you divide how much he made by 13 hours. Which was 7.25. Than multiply 7.25 by 5. And you get your answer which is 36.25.

The same goes for any money scenario when you are trying to find out like how much an individual 'peach' is in the whole bag. Or take it for what you will it was an example.

The correct description that defines the prism square is option B: "Is another hand instrument that is also used to determine or set out right angles."

A prism square is a tool used in construction and woodworking to establish or verify right angles. It consists of a triangular-shaped body with a 90-degree angle and two perpendicular sides. The edges of the prism square are straight and typically have measurement markings. It is commonly used in carpentry, masonry, and other trades where precise right angles are essential for accurate and square construction. Option A describes a different tool involving mirrors set at an angle, which is not related to the prism square. Option C refers to a different instrument used for measuring slopes and is not directly related to the prism square.

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The number of beads that are gold is 35.

Percentage can be described as a fraction out of an amount that is usually expressed as a number out of hundred.

Number of gold beads = percentage of gold beads x total number of beads

70% x 50

0.7 x 50 = 35

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Answer:

n = 2 i beleve

Step-by-step explanation:

i dont know if this is right but i did the math and im in 6th grade so im not really good with that stuff

<3 have a good day <3

Answer:

This equation is a difference of squares factorization. It states that the difference between the square of x and 7x plus some constant c is equal to the square of (x+a). To solve for a and c, we can expand both sides of the equation:

X^(2) - 7x + c = x^(2) + 2ax + a^(2)

And we can set them equal to each other and solve for a and c:

x^(2) - 7x + c = x^(2) + 2ax + a^(2)

-2ax - a^(2) = -7x + c

a = (7x - c) / 2x

c = x^(2) - 7x + a^(2)

Note that this is valid as long as x is not equal to 0.

Answer:

c.29

Step-by-step explanation:

Your equation is 3x+18+75=180

Then, you combine like numbers so 75+18 so your equation is now 3x+93=180

Next, you subtract the 93 and get 3x=87

Finally, divide 87 by 3 to get x=29!!

Hope this helps have a great day :)

The correct answer is A. True

A linear equation represents a line in the xy-plane. In the form of y = mx + b, where m is the slope and b is the y-intercept, a linear equation defines a straight line relationship between x and y. Each x value corresponds to a unique y value on the line.

By plotting the points that satisfy the equation, a line can be formed. The slope determines the steepness or direction of the line, while the y-intercept represents the point where the line intersects the y-axis.

Therefore, a linear equation does determine a line in the xy-plane.

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True. A linear equation determines a line in the xy-plane.

A linear equation is an equation that describes a straight line in the xy-plane. It is an equation of the form y = mx + b, where m represents the slope of the line and b represents the y-intercept. The slope-intercept form of a linear equation is commonly used to graph lines.

The equation y = mx + b shows that for every value of x, there is a corresponding value of y that lies on the line. The slope, m, determines the steepness of the line, while the y-intercept, b, represents the point where the line crosses the y-axis.

Therefore, it is true that a linear equation determines a line in the xy-plane.

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The primary function of a vacuum flask, commonly known as a thermos, is to maintain the temperature of its contents. It is designed to keep hot liquids hot and cold liquids cold for an extended period. The heat transfer rate (Q) can be calculated using Fourier's law of heat conduction.

A vacuum flask consists of several components that contribute to its thermal insulation properties:

Inner Container: The inner container is typically made of glass or stainless steel and holds the liquid. Its purpose is to provide a sealed environment, preventing heat transfer through conduction.

Vacuum Layer: The inner container is surrounded by a vacuum layer, which acts as insulation. The vacuum minimizes heat transfer through conduction and convection since there are no molecules to transfer heat.

Outer Shell: The outer shell of the flask is usually made of plastic or metal. It serves as an additional layer of insulation and protects the inner components.

Stopper or Lid: The stopper or lid of the flask is designed to provide an airtight seal, preventing heat exchange through conduction and convection. It also prevents spills and leakage.

The relevant parameters for a vacuum flask can include:

Thermal conductivity of the inner container material

Thickness of the inner container and vacuum layer

Surface area of the flask

Ambient temperature

One relevant calculation involves estimating the heat transfer rate through the flask. The heat transfer rate (Q) can be calculated using Fourier's law of heat conduction:

Q = k * A * (T1 - T2) / d

Where:

Q = Heat transfer rate

k = Thermal conductivity of the inner container material

A = Surface area of the flask

T1 = Temperature of the liquid inside the flask

T2 = Ambient temperature

d = Thickness of the inner container and vacuum layer

A vacuum flask functions by utilizing its components to minimize heat transfer through conduction, convection, and radiation. The thermal insulation provided by the vacuum layer and the materials used in the flask's construction help maintain the temperature of the contents over an extended period. Understanding the relevant parameters allows for the design and optimization of vacuum flasks to meet specific temperature maintenance requirements.

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Answer:

slope = 2

Step-by-step explanation:

calculate the slope m using the slope formula

m = \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\)

with (x₁, y₁ ) = (2, 3) and (x₂, y₂ ) = (4, 7) ← 2 points on the line

m = \(\frac{7-3}{4-2}\) = \(\frac{4}{2}\) = 2

The result simplifies to \(-23/\sqrt3445.\)

To calculate \(sin(tan^-1(5/4)-tan^-1(6/7))\), we use the difference of angles formula for sine, which is sin(a-b) = sin(a)cos(b) - cos(a)sin(b).

For a = tan^-1(5/4) and b = \(tan^-1(6/7)\), we apply the identities \(sin(tan^-1(x))\)= \(x/\sqrt(1+x^2)\)and \(cos(tan^-1(x)) = 1/\sqrt(1+x^2)\), which gives:

\(sin(a) = 5/\sqrt41, \\cos(a) = 4/\sqrt41, \\sin(b) = 6/\sqrt85, \\cos(b) = 7/\sqrt85.\)

Substituting these values into the formula, the result simplifies to \(-23/\sqrt3445.\)

The sine formula can be used to express the sine of the difference between two angles (such as angle A and angle B).

The calculation of the sine of the difference between angles A and B can be achieved through the equivalent expression of the product of the sine of angle A and the cosine of angle B, subtracting from it the product of the cosine of angle A and the sine of angle B.

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The standard normal curve, also known as the standard normal distribution or the z-distribution, is a specific probability distribution that follows a bell-shaped curve. The area under the standard normal curve to the right of z = 3 is approximately 0.0013.

For the area under the standard normal curve to the right of z = 3, we need to calculate the cumulative probability from z = 3 to positive infinity.

The standard normal distribution, also known as the z-distribution, has a mean of 0 and a standard deviation of 1. It is a symmetric bell-shaped curve that represents the distribution of standard scores or z-scores.

Using statistical tables or software, we can find the cumulative probability associated with z = 3, which represents the area under the curve to the left of z = 3.

The cumulative probability for z = 3 is approximately 0.9987.

For the area to the right of z = 3, we subtract the cumulative probability from 1.

Therefore, the area to the right of z = 3 is approximately 1 - 0.9987 = 0.0013.

In conclusion, the area under the standard normal curve to the right of z = 3 is approximately 0.0013.

This means that the probability of randomly selecting a value from the standard normal distribution that is greater than 3 is approximately 0.0013 or 0.13%.

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Gregs's mom baked 24 cookies, while Vinnie's mom baked 36 cookies. Brad's mom baked twice as much as Greg's mom, resulting in a total of 48 cookies. The total number of cookies that were baked is found by adding the number of cookies that each mom baked:

24 + 36 + 48 = 108.

The cookies can be divided into 3 groups of 36, 4 groups of 27, 6 groups of 18, 9 groups of 12, 12 groups of 9, 18 groups of 6, 27 groups of 4, or 36 groups of 3 cookies. Since there are more than 100 words required, let's talk about the importance of fractions and equivalent ratios.

In conclusion, Greg's mom baked 24 cookies, Vinnie's mom baked 36 cookies, and Brad's mom baked 48 cookies, resulting in a total of 108 cookies. The cookies can be divided into fractions or equivalent ratios to distribute them evenly among the children.

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The sentence "64% of women in the sample are the principal investor in their household" serves as an example of descriptive statistics.

This sentence provides a summary of the survey's data and a descriptive statistic (percentage) that characterizes the sample's characteristics.

According to the survey's findings, "there is a correlation between American women and being the principal investor in their household." The sample data are used to draw this conclusion about the population. Despite the fact that the sample is not representative of all American women, the findings indicate that a sizable number of the women in the sample are the principal investors in their households.

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Answer:

The probability is 1/9

Step-by-step explanation:

The inner square here is the smaller square

The area of a square is the square of its side length

The area of the small square is 4^2 = 16

The area of the big square is 12^2 = 144

The probability would be the area of the small square divided by that of the entire large square

We have this as;

16/144

= 1/9

The speed of a car that makes the trip in three hours is 40 miles / hr

Speed is define as the rate of change of position of an object in any direction

For a car moving at 30mph, the trip takes 4 hours

Then we find the distance between both cities .

Distance = Speed x time

Distance =30 x 4 = 120miles

Means the distance between both cities = 120miles

We need to find the speed if the trip takes 3 hours.

To find this new speed, the distance does not change between the two cities and the distance is 120 Miles.

Hence,

Speed = Distance / time

Speed = 120/ 3

Speed = 40 miles /hr

Therefore, the speed of the car is 40 miles / hr

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The correct equation to solve for the Sum of Squares of Regression (SSR) given the Total Sum of Squares (SST) and the Sum of Squares of Errors (SSE) is SSR = SST - SSE.

The equation SST = SSR + SSE represents the Total Sum of Squares (SST) as the sum of the Sum of Squares of Regression (SSR) and the Sum of Squares of Errors (SSE). To solve for SSR, we need to isolate it on one side of the equation.

By rearranging the equation, we can express SSR as SSR = SST - SSE. This means that the Sum of Squares of Regression is equal to the Total Sum of Squares minus the Sum of Squares of Errors. Therefore, SSR = SST - SSE is the correct equation to solve for the Sum of Squares of Regression.

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Answer:

35

Step-by-step explanation:

2x+1=71

71-1=70

70÷2=35

therefore x must be 35

Answer: Gamers and Graphic Designers are high-performance users. They use to replace parts so that the PC would run fast. Gamers used to overclock the PC so that the online games will run smoothly but overclocking can increase the CPU temperature.

Step-by-step explanation:

We can infer that there are more flaws caused on the day shift at the 0.05 significance level.

To determine if there are more defects produced on the day shift compared to the afternoon shift, we can conduct a one-tailed paired t-test. Let's go through the steps:

1. Null and alternate hypotheses:

H0: μd ≤ 0 (There is no significant difference or the day shift has fewer defects)

H1: μd > 0 (There are more defects on the day shift)

2. Sample information:

Day:                      1   2   3   4

Day shift:             10  12  15  19

Afternoon shift:    8    9    12  15

3. Calculate the differences:

We calculate the difference between the day shift and afternoon shift for each day:

d = (Day shift) - (Afternoon shift)

d = 10-8, 12-9, 15-12, 19-15

d = 2, 3, 3, 4

4. Calculate the mean and standard deviation of the differences:

Mean (xd) = (2+3+3+4)/4 = 3

Standard deviation (sd) = √[(Σ(d-xd)²)/(n-1)]

                     = √[(0²+1²+1²+2²)/3]

                     ≈ √(6/3)

                     ≈ √2

                     ≈ 1.414

5. Calculate the test statistic:

t = (xd - μd)/(sd/√n)

  = (3 - 0)/(1.414/√4)

  = 3/0.707

  ≈ 4.243

6. Degrees of freedom:

Degrees of freedom (df) = n - 1 = 4 - 1 = 3

7. Decision rule:

Since we are conducting a one-tailed test at the 0.05 significance level, the critical t-value is obtained from the t-distribution table for df = 3 and α = 0.05. The critical t-value is approximately 2.920.

8. Decision regarding H0:

If the calculated test statistic (t) is greater than the critical t-value, we reject H0. Otherwise, we do not reject H0.

9. P-value:

To find the p-value associated with the calculated test statistic, we need to look it up in the t-distribution table or use statistical software. The p-value represents the probability of observing a test statistic as extreme or more extreme than the one calculated, assuming H0 is true. In this case, the p-value is less than 0.005 (Between 0.0005 and 0.005).

Summary:

- Decision rule: Since the calculated test statistic (4.243) is greater than the critical t-value (2.920), we reject H0.

- The p-value is less than 0.005.

- Decision regarding H0: We reject H0.

Therefore, at the 0.05 significance level, we can conclude that there are more defects produced on the day shift.

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Answer:

The length of the diagonal from P to Q is

\( \sqrt{ {9}^{2} + {12}^{2} + {8}^{2} } = \sqrt{289} = 17\)

For the standard normal distribution, if P (z≤a) = 0. 7116, then the value of P(z≥a) is 0.2884.

The standard normal distribution is a special type of normal distribution where the mean is 0, and the standard deviation is 1.

As it is given that the value of P(z≤a)=0.7116, therefore, for P(z≤a) we can write,

\(P(z\leq a) = 0.7116\\\\P(z > a) =1- 0.7116\\\)

But as we know the fact that in continuous distribution, the probability of a single point is 0, therefore, we can write

\(P(Z \leq z) = P(Z < z) )\)

Similarly, for P(z>a)=0.7116 we can write,

\(P(z > a) = 1-0.7116\\\\P(z \geq a) = 1-0.7116\\\\P(z \geq a) = P(z=a) + P(z > a) = 1- 0+0.7116\\\\P(z \geq a) = 0.2884\)

Hence, For the standard normal distribution, if P (z≤a) = 0. 7116, then the value of P (z≥a) is 0.2884.

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Answer:

Ok

Step-by-step explanation:

-2 Cancel out from both sides

(2x + 1) = (2x - 1)

Kai the answer is 0= -2

Answer:

There is no solution.

Step-by-step explanation:

2x+1=2x-1

2x-2x=-1-1

0=-2

A conservative worst-case scenario sample size for a poll measuring the proportion of citizens holding a political belief with a margin of error of 2.3%, a confidence level of 95% would be approximately 1049.

The sample size required for a poll depends on several factors, such as the population size, the level of confidence desired, and the margin of error tolerated.

In the case of a simple poll measuring the proportion of citizens holding a particular political belief, the worst-case scenario sample size would be the largest possible sample size required to achieve the desired margin of error.

To determine the worst-case scenario sample size, we need to use a formula for calculating the sample size, which takes into account the population size, the level of confidence desired, and the margin of error tolerated.

One such formula is:

Sample size = [(Z-score)^2 * p * (1 - p)] / (margin of error)^2

Where:

Z-score represents the level of confidence desired, which is typically 1.96 for a 95% confidence level.

p represents the proportion of citizens holding the particular political belief we are measuring.

(1 - p) represents the proportion of citizens not holding the particular political belief we are measuring.

Assuming a worst-case scenario where p = 0.5, meaning that we have no prior knowledge about the proportion of citizens holding the political belief, and using a margin of error of 2.3% and a confidence level of 95%, the sample size required would be:

Sample size = [(1.96)^2 * 0.5 * (1 - 0.5)] / (0.023)^2 ≈ 1049

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