By visiting homes door-to-door, a municipality surveys all the households in 149 randomly-selected neighborhoods to see how residents feel about a proposed property tax increase. Identify the type of sample that is being used.

The rate of change of the function that has a graph that passes

through the points (-1, 3) and (-2,-4) is slope and is equal to 7.

We have given two points  (-1, 3) and (-2,-4) .

Rate of change of graph is given by slope

Using slope formula , we get

      m = -4 - 3 / -2 - (-1)

      m = -7 / -2 + 1

      m = -7 / -1

       m = 7

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The absolute threshold is defined as the minimum detectable stimulus or intensity.

The absolute threshold refers to the minimum amount or level of a stimulus that is required for it to be detected or perceived by an individual. It is the point at which a stimulus becomes perceptible or noticeable to a person.

In sensory psychology, the absolute threshold is typically measured in terms of the lowest intensity or magnitude of a stimulus that can be detected accurately by a person at least 50% of the time. It represents the boundary between the absence of perception and the presence of perception.

The absolute threshold can vary depending on the sensory modality being tested. For example, in vision, it may refer to the minimum amount of light required for a person to see an object. In hearing, it may represent the minimum sound intensity needed for an individual to hear a tone.

Several factors can influence the absolute threshold, including individual differences, physiological factors, and the nature of the stimulus itself. Factors such as sensory acuity, attention, fatigue, and background noise can all affect an individual's ability to detect a stimulus.

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Accurate Explanation: Aloha! Basically, as I can see here, you're missing a slope. But you need at least 1 point and a slope in order to write an equation. Hope it helps.

20 ounces

Step-by-step explanation:

no exceptions

The conditional probabilities are as follows: P(B | C) = 0.295, P(C | B) = 0.371, P(A | B) = 0.371, P(B | A) = 0.333, P(A | C) = 0.273, and P(C | A) = 0.308. These probabilities represent the likelihood of one event occurring given that another event has already occurred.

To determine the conditional probabilities, we can use the formula:

P(X|Y) = P(X ∩ Y) / P(Y)

where X and Y are events.

1. P(B | C):

P(B | C) = P(B ∩ C) / P(C)

P(B ∩ C) = P(B n C) = 0.13

P(C) = 0.44

P(B | C) = 0.13 / 0.44 = 0.295

2. P(C | B):

P(C | B) = P(C ∩ B) / P(B)

P(C ∩ B) = P(B n C) = 0.13

P(B) = 0.35

P(C | B) = 0.13 / 0.35 = 0.371

3. P(A | B):

P(A | B) = P(A ∩ B) / P(B)

P(A ∩ B) = P(A n B) = 0.13

P(B) = 0.35

P(A | B) = 0.13 / 0.35 = 0.371

4. P(B | A):

P(B | A) = P(B ∩ A) / P(A)

P(B ∩ A) = P(A n B) = 0.13

P(A) = 0.39

P(B | A) = 0.13 / 0.39 = 0.333

5. P(A | C):

P(A | C) = P(A ∩ C) / P(C)

P(A ∩ C) = P(A n C) = 0.12

P(C) = 0.44

P(A | C) = 0.12 / 0.44 = 0.273

6. P(C | A):

P(C | A) = P(C ∩ A) / P(A)

P(C ∩ A) = P(A n C) = 0.12

P(A) = 0.39

P(C | A) = 0.12 / 0.39 = 0.308

Therefore, the conditional probabilities are:

P(B | C) = 0.295

P(C | B) = 0.371

P(A | B) = 0.371

P(B | A) = 0.333

P(A | C) = 0.273

P(C | A) = 0.308

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False. In a discrete-time system, the stability of the system is determined by the location of its poles in the complex plane. For stability, all the poles should lie inside the unit circle.

In this case, the poles of the system are -0.7 and 0.5. To determine their stability, we need to consider their magnitude. The magnitude of -0.7 is less than 1, while the magnitude of 0.5 is also less than 1. Since both poles have magnitudes less than 1, they fall within the unit circle.

When all the poles of a discrete-time system lie inside the unit circle, it indicates that the system is stable. The unit circle acts as a boundary, and any poles within it ensure bounded and stable behavior.

Therefore, the statement "this system is unstable" is false. The given discrete-time system with poles -0.7 and 0.5 is stable.

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To find the third side of an inequality of a triangle, you must first use the Triangle Inequality Theorem.

This theorem states that for any triangle, the sum of any two sides of the triangle must be greater than the third side. This means that in order to find the length of the third side, you must subtract the sum of the two known sides from the smaller of the two sides, then the length of the third side will be equal to the difference between these two numbers. For example, if two sides of a triangle have lengths of 4 and 3, the third side must be greater than 1 (4 + 3 = 7 and 4 - 3 = 1). Therefore, the length of the third side must be greater than 1.

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A random variable X is distributed as Poisson distribution with λ = 3.5. a. P(X < 5) = 0.0302 + 0.1057 + 0.1841 + 0.2139 + 0.1705 = 0.7044. b. P(2 ≤ X ≤ 6) = 0.1841 + 0.2139 + 0.1705 + 0.1008 + 0.0462 = 0.7155. c. P(X > 7) = 1 - P(X ≤ 7) = 1 - 0.8676 = 0.1324. d. P(X ≥ 5) = 1 - P(X < 5) = 1 - 0.7044 = 0.2956.

(a) P(X < 5) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4)

Using Table A.3 with λ = 3.5, we have:

P(X = 0) = 0.0302

P(X = 1) = 0.1057

P(X = 2) = 0.1841

P(X = 3) = 0.2139

P(X = 4) = 0.1705

Therefore, P(X < 5) = 0.0302 + 0.1057 + 0.1841 + 0.2139 + 0.1705 = 0.7044.

(b) P(2 ≤ X ≤ 6) = P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6)

Using Table A.3 with λ = 3.5, we have:

P(X = 2) = 0.1841

P(X = 3) = 0.2139

P(X = 4) = 0.1705

P(X = 5) = 0.1008

P(X = 6) = 0.0462

Therefore, P(2 ≤ X ≤ 6) = 0.1841 + 0.2139 + 0.1705 + 0.1008 + 0.0462 = 0.7155.

(c) P(X > 7) = 1 - P(X ≤ 7)

Using Table A.3 with λ = 3.5, we have:

P(X ≤ 7) = P(X = 0) + P(X = 1) + P(X = 2) + P(X = 3) + P(X = 4) + P(X = 5) + P(X = 6) + P(X = 7)

P(X ≤ 7) = 0.0302 + 0.1057 + 0.1841 + 0.2139 + 0.1705 + 0.1008 + 0.0462 + 0.0162

P(X ≤ 7) = 0.8676

Therefore, P(X > 7) = 1 - P(X ≤ 7) = 1 - 0.8676 = 0.1324.

(d) P(X ≥ 5) = 1 - P(X < 5)

Using Table A.3 with λ = 3.5, we have already calculated P(X < 5) in part (a) to be 0.7044.

Therefore, P(X ≥ 5) = 1 - P(X < 5) = 1 - 0.7044 = 0.2956.

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The volume of the right cylinder is 1017.88 m² = 324π m²

One of the most fundamental curvilinear geometric shapes, a cylinder has traditionally been a three-dimensional solid. It is regarded as a prism with a circle as its base in basic geometry. In several contemporary fields of geometry and topology, a cylinder can alternatively be characterized as an infinitely curved surface.

The properties of cylinder are :

It features two flat circular faces, two curved edges, and one curved surface.

The two circular flat bases are parallel to one another.

There isn't a vertex on it.

The radius of a circular base and the height of a cylinder determine its size.

The radius of the cylinder = 6 m

Height = 9 m

The volume of the right cylinder is π(radius)²height

= π * 6² * 9 = 1017.88 m² = 324π m²

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Answer:

5

Step-by-step explanation:

The triangle pictured is a 45-45-90 triangle, meaning both legs are the same length, 5.

Answer:

demos graphing calculator

hope this is what you were looking for !

Answer:

The slope of the line perpendicular is -3/2.

Step-by-step explanation:

y-2/3x=-4

y = 2/3x - 4

The slope of the line perpendicular is -3/2.

Answer:

it would be the third one ( 0,3)

i think its 45 mph .

Step-by-step explanation:

hope its write

Answer:

75mph!

Step-by-step explanation:

Answer:

7,600.

Step-by-step explanation:

The 6 is the hundreds digit - as the next digit after it is 4 we leave the 6 as it is  so the answer is 7,600.

Answer:

7600

Step-by-step explanation:

First, 7648 rounded to the nearest hundred is:

7600

Therefore , the solution of the given problem of standard deviation comes out to be the value of x=48 is 0.4853 standard deviations away from the mean.

Statistics uses variance to measure variation. The square root with that number is used to compute the average variation here between data and the mean. In contrast to certain other quantifiable measures of variability, it takes into account all datasets in its calculations by comparing each result to the mean. Variations could be caused by internal or external forces, and they might involve things like unintended mistakes, inflated expectations, and shifting economic or commercial conditions.

Here,

Given :

Standard deviation is 12.59, with a mean of 54.11

X=48

employing the z-formula

=> z = x -u / α

Values are replaced to produce

=> z = 48 -54.11/12.59

the z value is

z= - 0.4853

As a result, it can be shown that the value of x=48 is 0.4853 standard deviations away from the mean.

Therefore , the solution of the given problem of standard deviation comes out to be the value of x=48 is 0.4853 standard deviations away from the mean.

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The complete question is " The annual rainfall in a town has a mean of 54.11 inches and a standard deviation of 12.59 inches. Last year there was rainfall of 48 inches. How many standard deviations away from the mean is that? Round your answer to two decimal places."

If all six bounds (limits of integration) are constant (numerical values, no variables) in cylindrical coordinates, then we must have a rectangular box-like region.

This is because in cylindrical coordinates, we have three variables: radius, angle, and height. When all six bounds are constants, we are essentially fixing the range of each variable, resulting in a rectangular box-like region.

In spherical coordinates, if all six bounds are constant, then we must have a rectangular pyramid-like region. This is because in spherical coordinates, we have three variables: radius, polar angle, and azimuthal angle. When all six bounds are constants, we are essentially fixing the range of each variable, resulting in a rectangular pyramid-like region.

It is not possible to have the exact same region represented with only constants in both cylindrical and spherical coordinates simultaneously. This is because the two coordinate systems have different geometric shapes and different ways of representing the variables. However, it is possible for the regions to have similar shapes and for the bounds to have similar numerical values in both systems.

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Answer:

1) 90

Step-by-step explanation:

157.50 / 7 = 22.50 or 270 / 12 = 22.50

22.50 * 4 = 90

Answer:

90$

Step-by-step explanation:

157.50/7=22.50

22.50*4=90

90$

If this is high school math then I feel smart.....I'm in 5th grade :>

The investor can obtain an annual annuity payment of approximately $48,651 for his retirement years.

To calculate the annual annuity payment, we can use the present value of an ordinary annuity formula. The formula is:

PV = C × [(1 - (1 + r)^-n) / r]

Where:

PV is the present value of the annuity,

C is the annual payment,

r is the interest rate,

n is the number of periods.

In this case, the investor has a retirement period of 25 years, and the interest rate is 7.5%.

The present value of the annuity is the amount the investor can invest today plus the present value of the annual payments he can make for 30 years.

Using the formula, we can solve for C, the annual payment, which comes out to approximately $48,651.

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Answer:

no u

Step-by-step explanation:

II. The time that it will take for Car A to reach the intersection is of: 0.6 hours.

III. The time that it will take for Car B to reach the intersection is of: 0.62 hours.

IV. The car that will reach the intersection first is: Car A.

The relation used is that the velocity is obtained as the division of distance and time, hence:

v = d/t.

Then the time is obtained as the division of distance by velocity, as follows:

t = d/v.

To find the distance of Car B to the intersection, we have that:

Then the distance is obtained using the law of cosines as follows:

d² = 20² + 18² - 2 x 18 x 20 x cosine of 95 degrees

d² = 786.75

d = square root(786.75)

d = 28 miles. (rounded)

Then the times are given as follows:

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Answer:

Step-by-step explanatio

Answer:

It's the second answer

Step-by-step explanation:

For 4 games on thursday you pay $16 while on saturday you pay $18. If you need a better explanation I can give it to you.

The approximate number of selected concerts will have decibel level less than 112 is equal to 9 .

Average number of decibel at full concert = 120

Standard deviation = 6

Sample size 'n' = 100

Distribution of decibel levels at a full concert is approximately normal with a mean of 120 .

Let X be the random variable representing the decibel level at a full concert.

Probability that a randomly selected concert will have a decibel level less than 112.

Probability using the standard normal distribution.

Standardize the random variable X to the standard normal distribution Z ~ N(0,1) using the formula,

Z = (X - μ) / σ

where μ is the mean of the distribution 120 and σ is the standard deviation of the distribution 6.

Z = (112 - 120) / 6

  = -1.33

Probability of a standard normal variable being less than -1.33 using a standard normal distribution table.

Attached table.

The probability is approximately 0.0918.

Probability of a randomly selected concert having a decibel level less than 112 is approximately 0.0918.

Expected number of concerts out of 100 that will have a decibel level less than 112, we multiply the probability by 100.

Expected number of concerts = 0.0918 × 100

                                                  = 9.18

Therefore, approximately 9 concerts out of 100 will have a decibel level less than 112.

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The correct answer is to minimize the sum of squared errors between the observed sales data (Ft) and the estimated values from the model (b0 + b1S1t + b2S2t + b3*t).

To estimate the beta coefficients and the intercept for the given forecasting model, we can use the provided average weekly sales data for the three seasons (Christmas, Father's Day, and all other times) over four years. Here is how we can proceed:

First, we need to calculate the sequential time period (t) for each data point. Since we have four years of data, each year can be considered as four sequential time periods. Therefore, t takes the values 1, 2, 3, 4 for the four years.Next, we'll assign dummy variables S1t and S2t to represent the data from season 1 and season 2, respectively. The dummy variables will be 1 if the data corresponds to the respective season and 0 otherwise.

Using the given data, we can construct the following table:

Season Year 1 Year 2 Year 3 Year 4

S1t 1 0 1 0

S2t 0 1 0 1

t 1 2 3 4

Ft 1856 2012 985 1995

To estimate the beta coefficients (b0, b1, b2, b3) and the intercept (b0) for the forecasting model, we can use linear regression. We want to find the values that minimize the sum of squared errors between the observed sales data (Ft) and the estimated values from the model (b0 + b1S1t + b2S2t + b3*t).

Using statistical software or a regression calculator, we can perform linear regression on the given data to estimate the beta coefficients and the intercept.

The estimated values for the beta coefficients and the intercept may vary based on the specific software or calculator used.

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Answer:

200 miles

Step-by-step explanation:

1 3/4 can be turned into a decimal as 1.75

Now let’s create fractions to prepare for cross multiplication

1.75/50=7/x

1.75x=7(50)

1.75x=350

/1.75.  /1.75

x=200

200 miles

hopes this helps please mark brainliest

Position vs. time graph is a graph that shows the position of an object over time. It can be a straight line or a curved line depending on the motion of the object.

What is graph ?

A graph is a mathematical structure used to represent relationships between objects. In a graph, objects are represented by vertices (or nodes) and relationships are represented by edges (or arcs). Graphs can be used to model a wide variety of real-world systems, including networks of roads, social networks, and the internet.

The position vs. time graph is a visual representation of an object's motion, where the position of the object is plotted on the y-axis and the time it took to reach that position is plotted on the x-axis. The graph helps to show the relationship between the position and time of an object in motion. The line on the graph can be either straight or curved, depending on the type of motion the object is undergoing. If the object is moving at a constant speed, the line will be straight. If the object is accelerating or decelerating, the line will be curved.

Position vs. time graph is a graph that shows the position of an object over time. It can be a straight line or a curved line depending on the motion of the object.

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According to the given statement;

object A is moving faster by 8.184-5= 3.184

3.184 mph faster.

The distance traveled in relation to the time it took to travel that distance is how speed is defined. Since speed only has a direction and no magnitude, it is a scalar quantity.

The most crucial scientific concept is measurement. Base or physical fundamental units are used to measure a wide range of measurable quantities. One such measurable quantity is speed, which calculates the ratio between the distance an object travels and the time needed to cover that distance. Let's explore speed in-depth in this session.

According to the given valus;

Speed of object A = 12 ft per sec

I foot per second = 0.682 mph

12 ft per sec = 0.682x 12

= 8.184 mph

object В speed = 5 mph

object A is moving faster than B.

object A is moving faster by 8.184-5= 3.184

3.184 mph faster.

Hence,object A is moving faster than B by  3.184 mph.

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