Special Right triangles Quiz

1. What is the value of w? ( see picture 1 for details)

2. What are the angle measures of the triangle? ( see picture 2 for details)

3. What is the value of p? ( see picture 3 for details)

4. See picture 4 for question and answer

5. see picture 5 for the question and answer

The Balance is $9,405.14 in the savings plan balance.

The savings plan balance after 3 years with an APR of 7​% and monthly payment of ​$250.00.

A savings account balance is what?

The amount of money you have available in your checking or savings account is known as your account balance in the world of banking. The net amount remaining in your account after all deposits and credits have been balanced against any charges and debits is your account balance.

FV =250 x ((1 + 0.03/12)^(3*12) - 1 / (0.03/12))

FV =250 x ((1.0025)^36 - 1 / (0.0025))

FV =250 x 37.62056031

FV =$9,405.14

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My puppy is racing away from me at a rate of 200 feet per minute, while I am moving at a rate of 270 feet per minute. Yes, you will catch the puppy after 4 minutes

What is the relation between time and distance?

The relation between time and distance is defined as the ratio of speed and distance. We stand in the frame of reference where he is still, in this frame the speed of the puppy will be equal to the speed of the puppy in our previous frame plus the speed of him in the previous frame (because they are running in opposite directions). Speed =  270 - 220 = 50 feet per minute. My puppy is running away at a speed of 220 feet per minute. The distance between him and puppy = 200 feet Speed of him = 270 feet per minute.

For example if a car travels for 2 hours and covers 120 miles we can work out speed as 120 ÷ 2 = 60 miles per hour. The units of the the distance and time tell you the units for the speed.

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The weight of a hamburger can be considered a continuous random variable.

A random variable is a mathematical representation of a random phenomenon.

In probability and statistics, the weight of a hamburger can be used to illustrate the concepts of discrete and continuous random variables.

A discrete random variable is one that can only take on specific, distinct values.

For example, the number of hamburgers sold at a fast food restaurant in one day could be considered a discrete random variable, as the number of hamburgers sold can only be a whole number.

On the other hand, a continuous random variable is one that can take on an infinite number of values within a given range.

The weight of a hamburger could be considered a continuous random variable, as the weight of a hamburger can take on any value within a certain range, such as between 0.1 and 0.5 kilograms.

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The part to whole ratio for n sixth-grade band to t total sixth graders is

n/t.

What is ratio?

Ratio and Proportion are explained majorly based on fractions. When a fraction is represented in the form of a:b, then it is a ratio whereas a proportion states that two ratios are equal. Here, a and b are any two integers. The ratio and proportion are the two important concepts, and it is the foundation to understand the various concepts in mathematics as well as in science.

In our daily life, we use the concept of ratio and proportion such as in business while dealing with money or while cooking any dish, etc.

Now,

Given There are n sixth-grade band members and t total sixth graders

Therefore, part-to-whole ratio = n/t.

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thats how u calculate this Use the angle fact that angles in a full turn add to 360°. To work the bearing, subtract 130° from 360°. 360° – 130° = 230° and so, the bearing of A from B is 230°.

In 300 collisions between a car and a deer,  there are 40 deer fatalities per 100 collisions is = 1.72.

Mean = 3 Standard Deviation = 1.72.

The standard deviation measures the spread of the data about the mean value. It is useful in comparing sets of data which may have the same mean but a different range.

Standard deviation is the measure of dispersion of a set of data from its mean. It measures the absolute variability of a distribution; the higher the dispersion or variability, the greater is the standard deviation and greater will be the magnitude of the deviation of the value from their mean.

In 300 collisions between a car and a deer,  there are 40 deer fatalities per 100 collisions is = 1.72.

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In 300 collisions between a car and a deer,  there are 40 deer fatalities per 100 collisions is = 1.72.

Mean = 3 Standard Deviation = 1.72.

The standard deviation measures the spread of the data about the mean value. It is useful in comparing sets of data that may have the same mean but a different range.

Standard deviation is the measure of the dispersion of a set of data from its mean. It measures the absolute variability of a distribution; the higher the dispersion or variability, the greater the standard deviation and the greater will be the magnitude of the deviation of the value from their mean.

In 300 collisions between a car and a deer,  there are 40 deer fatalities per 100 collisions is = 1.72.

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The graph created to represent this scenario is a histogram.

Graph is a data structure composed of nodes (vertices) connected by edges, which represent a relationship between the two nodes. Graphs are used to represent networks of communication, data organization, and even abstract concepts like thoughts or ideas. The nodes in a graph are often represented by circles and the edges by lines, but other shapes and symbols are also used. Graphs are a powerful tool for organizing and understanding data, and can be used to solve complex problems.

The x-axis represents the ages of the grandparents and the y-axis represents the number of people who fall into those age categories. The data is plotted in a bar graph format with the bars extending upward to represent the number of individuals in each age group. The highest bar is for those aged 83-84, with four people in this age range. The next highest bar is for those aged 85-86, with four people in this age range as well. The bars continue to descend in height as the age categories increase, with the lowest bar representing those aged 99-100, with four people in this age range as well.

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the integral value of = ∫ √3 9 arctan( 1 x) dx is: 9 {√3x/6 - π/4 + 1/2 ln 2}

Integration in mathematics is a technique for integrating or adding up the parts to get the total. By breaking down the functions into their component pieces, differentiation is carried out in reverse. The summation under a broad scale is found using this approach. The process of combining smaller parts or information from various subsystems into a single operational unit is known as integration. By breaking down the functions into their component pieces, differentiation is carried out in reverse. The summation under a broad scale is found using this approach.

Given that,

= [tex]\int\limits^{\sqrt{3}}_1{9arc\tan(1/x)} \, dx[/tex]

= [tex]9\int\limits^{\sqrt{3}}_1{tan^{-1}(1/x)} \, dx[/tex]

= [tex]9\int\limits^{\sqrt{3}}_1{cot^{-1}(x)} \, dx[/tex]

[As here we use tan⁻¹(1/x) = cot⁻¹x]

We integrate cot⁻¹x by parts by taking cot⁻¹x as I function.

= [tex]9{[cot^{-1}(x)\int\limits\, dx]{^\sqrt{3}} _1 - \int\limits^\sqrt{3}} _1 {d/dx (cot^{-1}x \int\limits\, dx }[/tex]

= 9 {√3x/6 - π/4 + 1/2 ln 2}

Thus, the integral value of = ∫ √3 9 arctan( 1 x) dx is: 9 {√3x/6 - π/4 + 1/2 ln 2}.

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We have the table for the relative frequency below: Class Relative Frequency; Football 0.133 ; Basketball 0.267 ; Soccer 0.233 ; Baseball 0.133 ; Hockey 0.233

An array has a subscript zero for its first element. When using built-in array types, array bounds are not checked.

soccer and hockey is the correct answer because in both of these games there is a possibility of a match to be tied if both teams score equal no of goals in the given time. Both games have two halves of play,  and the team scoring more goal in the given time wins but sometimes both teams score an equal number of goals then the match is  tied

Class Frequency

Football 4

Basketball 8

Soccer 7

Baseball 4

Hockey 7

Total frequency = 4 + 8 + 7 + 4 + 7 = 30

Let's find the relative frequency.

To find the relative frequency, we have:

Relative frequency = frequency/total frequency

We have:

Football = [tex]\frac{4}{30}[/tex] = 0.133

Basketball = 8/30 = 0.267

Soccer = 7/30 = 0.233

Baseball = 4/30 = 0.133

Hockey = 7/30 = 0.233

Therefore,

We have the table for the relative frequency below: Class Relative Frequency; Football 0.133 ; Basketball 0.267 ; Soccer 0.233 ; Baseball 0.133 ; Hockey 0.233

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We have the table for the relative frequency below: Class Relative Frequency; Football 0.133 ; Basketball 0.267 ; Soccer 0.233 ; Baseball 0.133 ; Hockey 0.233

An array has a subscript zero for its first element. When using built-in array types, array bounds are not checked.

soccer and hockey is the correct answer because in both of these games there is a possibility of a match to be tied if both teams score equal no of goals in the given time. Both games have two halves of play,  and the team scoring more goal in the given time wins but sometimes both teams score an equal number of goals then the match is  tied

Class Frequency

Football 4

Basketball 8

Soccer 7

Baseball 4

Hockey 7

Total frequency = 4 + 8 + 7 + 4 + 7 = 30

Let's find the relative frequency.

To find the relative frequency, we have:

Relative frequency = frequency/total frequency

We have:

Football =4/30  = 0.133

Basketball = 8/30 = 0.267

Soccer = 7/30 = 0.233

Baseball = 4/30 = 0.133

Hockey = 7/30 = 0.233

Therefore,

We have the table for the relative frequency below: Class Relative Frequency; Football 0.133 ; Basketball 0.267 ; Soccer 0.233 ; Baseball 0.133 ; Hockey 0.233

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Based on the residual plot, it is possible to determine whether a regression model is a good fit or not.

A residual plot is a scatterplot of the residuals (the differences between the actual values and the predicted values) against the predicted values. A good regression model should have residuals that are randomly distributed around zero and have roughly equal variance across the range of predicted values.

If the residuals form a pattern, such as a U-shape or a curve, it indicates that the model is not a good fit for the data. Additionally, if there are outliers or extreme values in the residual plot, it suggests that the model may not be appropriate for those observations.

Correct Question :

Based on the residual plot, how do you think that regression model is a good fit?

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The volume of the solid obtained by rotating the region bounded by x = y² and x = 1 − y² about x = 4 is 16.

The volume of a solid obtained by rotating a region about a line is calculated by using the method of cylindrical shells.

In this problem, we are given the region bounded by the curves x = y² and x = 1 − y², and we are asked to find the volume of the solid obtained by rotating this region about the line x = 4

Next, we set up a coordinate system with the y-axis being the axis of rotation and the x-axis being the height of the cylindrical shell.

We will be rotating the region about the line x = 4, so the width of the cylindrical shell is 4 - y².

The height of the cylindrical shell is the change in x from one shell to the next, which is given by the bounds of the region. The circumference of the shell is

=> 2πy,

and the width of the shell is 4 - y².

We integrate the product of these three quantities over the bounds of the region to find the total volume of the solid.

This integration can be done using a definite integral, with the bounds being the y-coordinates of the two points where the curves intersect.

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Madeline should not ask for the loan

1. With college loan:

DTI  = 43.9%    

2. Without the college loan

DTI = 29.3%

Calculate the DTI for both scenaries, with and without the college loan.

DTI = (monthly debt payments) / (gross monthly income) × 100

                                   With college loan     W/O college loan

Monthly debt payments($)

      Taxes                                    145                              145

      Credit card                            90                                95

       College loan                        120                                  0

               Sub-total                    360                              240

Montly gross income ($)             820                              820

1. With college loan:

DTI  = (360/820)×100 = 43.9%    

2. Without the college loan

DTI = (240/820)×100 = 29.3%

There are several rules to assess if a DTI is good or not.

Some of those rules include that:

A DTI without a mortgage should be below 28%, thus 29.3% is slightly over the limit.

A DTI with a mortgage should be below 43%, thus 43.9% is slightly over the lilmit.

The 20% rule states that the debt without a mortgage should be no more than 20 percent of the annual income after taxes.

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The set of all objects of interest is called population.

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The number of ways to choose only republicans is 330.                               The number of ways to choose the committee consisting of 1 republican and 6 democrats is 5005.                                                                                       The number of ways to choose the committee consisting of 1 republican and 6 democrats is 55055.                                  

The formula for this is ⁿCm is n!/((n-m)!*m!).

The number of ways to choose only republicans  = ¹¹C₇ = 330

The number of ways to choose one republicans = ¹¹C₁ = 11!/((11–1)!*1!) = 11

The number of ways to choose six democrats is ¹⁵C₆ = 15!/((15–6)!*6!) = 5005.

The number of ways to choose the committee consisting of 1 republican and 6 democrats from 15 Democrats and 11 Republican is :

¹¹C₁ * ¹⁵C₆ = 11!/((11–1)!*1!) * 15!/((15–6)!*6!) = 11 * 5005 = 55055

There are 55055 possible committees consisting of 1 republican and 6 democrats.

The number of ways to choose four republicans = ¹¹C₄ = 11!/((11–4)!*4!) = 330

The number of ways to choose three democrats is ¹⁵C₃ = 15!/((15–3)!*3!) = 455

The number ow ways to choose the committee consisting of 4 republican and 3 democrats from 15 Democrats and 11 Republican is : ¹¹C₄ * ¹⁵C₃ = 330 * 455 = 150150

There are 150150 possible committees consisting of 4 republican and 3 democrats.

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The x-intercepts are approximately x = 1.305, 5.695. These are the x-coordinates where the parabolic function crosses the x-axis.

What is parabola?

A parabolic function is a type of mathematical function that describes a parabolic curve or parabola. A parabola is a U-shaped curve that is symmetrical about its axis of symmetry.

The equation y = x^2 - 3x - 7 represents a parabolic function with its vertex located at (-3/2, -7). To find the x-coordinates of the x-intercepts (also known as the roots or zeros), we need to solve the equation x^2 - 3x - 7 = 0. This can be done using various methods, such as the quadratic formula or factoring.

Using the quadratic formula, the x-intercepts can be found as follows:

x = (-b ± √(b^2 - 4ac)) / 2a

where a = 1, b = -3, c = -7, and √ represents the square root symbol.

So,

x = (-(-3) ± √((-3)^2 - 4(1)(-7))) / 2(1)

x = (3 ± √(9 + 28)) / 2

x = (3 ± √37) / 2

Hence, the x-intercepts are approximately x = 1.305, 5.695. These are the x-coordinates where the parabolic function crosses the x-axis.

So the answer to the question is:

1.305, 5.695

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The initial rate of c production is -0.100k, where k is the rate constant of the reaction.

The rate of production of c (δ[c]/δt) can be determined using the equation of the rate of reaction [tex]\ce{A + B - > C}[/tex] . The rate of reaction is given by

[tex]\begin{equation} \frac{\delta[C]}{\delta t} = -k[A][B]\end{equation}[/tex]

where k is the rate constant of the reaction. If the initial concentrations of a and b are given, the rate of c production can be calculated.

In this problem, the initial concentration of a and b are given as [a] = 0.200 M and [b] = 0.500 M. Therefore, using the equation given above, the initial rate of c production is

[tex]\begin{equation} \frac{\delta[C]}{\delta t} = -k[A][B] = -k(0.200)(0.500) = -0.100k\end{equation}[/tex]

Therefore, the initial rate of c production is -0.100k, where k is the rate constant of the reaction.

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The equation of plane will be x+y-2z=4.

A plane in geometry can go on forever in two dimensions. The absence of width. An illustration of coordinate geometry is a plane. The coordinates of a point in a plane determine its position.

In mathematics, a plane is a two-dimensional, flat surface that never ends. A plane is a two-dimensional equivalent that includes three spatial dimensions, a line, and a point. In some higher-dimensional environments, planes can resemble subspaces, as though the room's walls had been greatly extended. These walls possess a distinct existence all their own, just as in the framework of Euclidean geometry.

The equation of plane can be used to represent a plane surface in three dimensions. There are numerous methods that can be used to find the equation for a plane depending on the input values given. The equation for the plane can be expressed in either cartesian form or vector form.

Hence, the general form of the equation is A(x−x1)+B(y−y1)+C(z−z1)=0

Now,

The solution is provided in image.

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Rounding off to the nearest whole number, the value of the investment at maturity would be $15,108.

What is the whole number?

A whole number is a positive integer that has no fractional or decimal component. Whole numbers include 0, 1, 2, 3, 4, and so on.

The formula to calculate the future value of an investment is given by: y = a (1 + r)t, where y is the future value, a is the initial investment, r is the rate of return as a decimal, and t is the time in years.

In this case, the initial investment is $7,000, the rate of return is 10% (or 0.10 as a decimal), and the time in years is 14. So, the calculation would be:

y = $7,000 * (1 + 0.10)^14

y = $7,000 * 1.10^14

y = $7,000 * 2.151373

y = $15,108.16

Rounding off to the nearest whole number, the value of the investment at maturity would be $15,108.

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They should use 1/45 of a gallon of soap out of 1/9 each day, so it lasts six days.

The division in mathematics is one kind of operation. In this process, we split the expressions or numbers into the same number of parts.

Given:

They have 1/9 of a gallon of soap.

To find the amount of soap so that it can last six days:

Divide the total amount of soap by the total number of days.

That means,

= 1/9 ÷ 6

= 1/9 x 1/6

= 1/ 45

Therefore, 1/45 is the required value.

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The number of students that answered Malachi's question is 20 students.

A histogram is a graphical representation of data that shows the frequency distribution of a set of continuous or discrete data. It is a bar graph that displays the number of data points within specified ranges or bins, allowing for the observation of patterns, trends, and anomalies in the data.

The height of each bar in the histogram represents the frequency of data within the corresponding bin or range, providing a visual representation of the distribution of the data.

In this case, we have that the number of students that answered the question are;

1 + 4 + 10 + 4 + 1 = 20 students

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Answer:

20

Step-by-step explanation:

i got it correcttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttttt

The shear force diagram of a simply supported beam is parabolic when it is a linearly varying distributed load.

What is a shear force diagram?

A shear force diagram depicts the shear force's variation throughout the length of the beam.

Examples of internal forces that are produced in a structure when loads are applied include shear force and bending moment. Failures often result from loading in one of two ways:

A beam can be damaged either a) by being sheared across its cross section or b) by being bent excessively.

It is possible to define shear force as the algebraic sum of the loads to the left or right of a point, provided that doing so restores vertical equilibrium.

For the shear force diagram of a simply supported beam to be parabolic, then the load on the beam should be linearly varying distributed load.

The slope or load will vary linearly if the shear force diagram is parabolic.

Therefore the shear force diagram of a simply supported beam is parabolic when it is linearly varying distributed load.

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Answer:

yes, Send me your questions

When using chi2, the expected cell count in a table should be larger than 10.

Chi2 analysis is a statistical function used to compare the observed frequency of an event to the expected frequency.

The ideal minimum value for the expected cell count is 10, although a value of 15 is even better. This is because the chi2 function assumes that the data is normally distributed and has a minimum number of expected occurrences.

The lower the expected cell count, the less reliable the results of the chi2 analysis will be. In fact, if the expected cell count is below 5, the results should not be considered trustworthy at all.

The degree of freedom determines the level of significance in the results, which is an important factor in interpreting the results of a chi2 analysis. In general, the larger the expected cell count, the more reliable the results will be.

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The is used as a measure of to overcome the range is influenced too much by .

?

are then selected as 3 points such that

they create four groups in the data, each groups approximately possessing 25% of the data.

(inter quartile range) is defined as the between third and first quartile.

Since, range is used as a measure of to overcome the difficult of the range.

The interquartile range can be affected by , so the IQR (interquartile range) is used as a better of the range.

Hence, The interquartile range is used as a measure of variability to overcome the range is influenced too much by

Learn more about here:

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#

The interquartile range is used to overcome the difficulty of range as a measure of variability which is affected by outliers.

The range is a measure of variability which is determined by calculating the difference between the highest and lowest values in a dataset. However, this measure of variability can be affected by outliers - values that are unusually high or low. For example, if a dataset includes one value that is much higher than the rest, then the range will be much higher than it would be without the outlier. The interquartile range is used to overcome this difficulty by ignoring the outliers when calculating the range. It is calculated by dividing the data into quartiles and then subtracting the lower quartile from the upper quartile. This gives a more reliable measure of variability as it ignores the outliers and is not affected by them.

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The object is moving in a straight line from location d to location f. The velocity of the object at each location is indicated by the arrows and is increasing from location d to location e, then decreasing from location e to location f.

The object is moving in a straight line from location d to location f, indicated by the dotted line. The velocity of the object at each location is indicated by the arrows. At location d, the arrow is pointing in the direction of the movement and has a smaller magnitude than the arrows at locations e and f. This indicates that the velocity of the object is increasing from location d to location e. At location e, the arrow has the largest magnitude and is pointing in the same direction as the dotted line. This indicates that the velocity of the object is at a peak at location e. From location e to location f, the arrow is pointing in the opposite direction of the dotted line and has a magnitude that is smaller than the arrow at location e. This indicates that the velocity of the object is decreasing from location e to location f.

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An equation that represents the Kim's and her sister's age combined is,

x + k = n.

Two algebraic expressions having same value and symbol '=' in between are called as an equation.

Let k represents Kim's age, and x represents her sister's age.

Let the combined age is n.

Then,

an equation that represents the Kim's and her sister's age combined is,

x + k = n.

Therefore, the equation is x + k = n.

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Answer:

The 7.5 liters of Solution A, 52.5 liters of Solution B, and 15 liters of Solution C were used to create the 60-liter mixture containing 29% acid.

Three solutions contain a certain acid.

A chemist combined all three solutions to create a 60-liter mixture containing 29% acid.

Let's call the amount of Solution A used in liters as x. Then, the amount of Solution B used would be (60 - x) liters and the amount of Solution C used would be 2x liters.

(0.15 * x) + (0.05 * (60 - x)) + (0.40 * 2x) = 0.29 * 60

Expanding and simplifying the equation, we get:

⇒0.30x + 3 - 0.05x + 2.4x = 17.4

Solving for x, we find that x = 7.5 liters of Solution A was used.

So, 7.5 liters of Solution A, 52.5 liters of Solution B, and 15 liters of Solution C were used to create the 60-liter mixture containing 29% acid.

Therefore, the 7.5 liters of Solution A, 52.5 liters of Solution B, and 15 liters of Solution C.

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The mystery number 'm' that satisfies the stated conditions is - 8.

A numerical expression is a mathematical statement written in the form of numbers and unknown variables. We can form numerical expressions from statements.

Let, Tameeka's mystery number be 'm'.

So, When you add 16 to mystery number then subtract 20,

m + 16 - 20,

you get the same result as when you add mystery number to itself, then add 20 and subtract 16,

m + m + 20 - 16.

Therefore,

m + 16 - 20 = m + m + 20 - 16

m - 4 = 2m + 4.

- m = 8.

m = - 8.

So the Tameeka’s mystery number (m) is -8.

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