#3 1 Gender evious You randomly survey 40 students about whether they play an instrument. You find that 8 males play an instrument and 13 females do not play an instrument. A total of 17 students in the survey play an instrument. Make a two-way table that includes the marginal frequencies.​

Answer:

Undefined

Step-by-step explanation:

in order to find the slope we can plug it into the slope formula:

k=(y1-y2)/(x1-x2) where the line contains points (x1,x2) and (y1,y2)

So we plug in

it's equal to -6-4/3-3 which is -10/0 which is undefined because we can't divide by 0

Answer:

do u want the ans then see my mèsßage

The values in the table do not represent a proportional relationship. The y-values are not a constant multiple of the corresponding x-values.

A proportional relationship exists between two variables when one variable is equal to a constant multiple of the other variable. In the given table, if x increases by 1 unit, the corresponding increase in y is not always the same.

For example, when x increases from 1 to 2, y increases by 2 units (from 3 to 5), but when x increases from 2 to 3, y increases by only 1 unit (from 5 to 6). This lack of a constant ratio between x and y means that the relationship between the two variables is not proportional.

The applicability of proportional relationships depends on the specific problem and the nature of the relationship between the variables being considered. In some cases, a proportional relationship may not be the best model to describe the relationship between variables, and alternative models may be more appropriate.

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   The value of  [tex]P(68 < \bar{X} < 70)[/tex] is  0.759298

What is average/mean ?

The middle number, which is determined by dividing the sum of all the numbers by the total number of numbers, is the average value in mathematics. When determining the average for a set of data, we add up all the values and divide this sum by the total number of values.

Given mean [tex]\mu[/tex]=69.5 , S=3

Consider  [tex]P(68 < \bar{X} < 70)[/tex]

              = P[ (68-69.5)/(3/√20) < ( [tex]\bar{X} -\mu[/tex] )/(S/√n) < (70-69.5)/(3/√20) ]

              =  P ( -2.23607 < Z < 0.74535 )

              = P ( Z< 0.7453) - P(Z < -2.2360 )

              = 0.77197 - 0.01267

              = 0.759298

Hence,  [tex]P(68 < \bar{X} < 70)[/tex] =  0.759298

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height of men in america have a normal distribution with a mean of 69.5  inches and a standard deviation of 3 inches. In a random sample of 20 adult men in the united states find [tex]P(68 < \bar{X} < 70)[/tex]

The intersection of a triangle's three medians is known as the centroid. It is always inside the triangle since it is the center of mass (or center of gravity).

A triangle's three perpendicular bisectors all meet at this same location. The circumcenter is the location where each perpendicular bisector intersects the other. 1. The circumcenter, or center of the circle, is where the circle is bounded.

Because of this, the circumcenter may be located either inside or outside the triangle. The two points of concurrency that are able to do that are the circumcenter and orthocenter.

An intersection of three or more lines is known as a point of concurrency. The four points of concurrency are the centroid, the orthocenter, the circumcenter, and the incenter. The point of concurrency where a triangle's three medians cross is known as the centroid.

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The system of equation have 0 = 0, so this system must have infinitely many solutions.

The system of equations are:

-x(1) + 3x(2) - 2x(3) = 4,

-x(1) + 4x(2) − 3x(3) = 5,

-x(1) + 5x(2) - 4x(3) = 6

An approach for resolving networks of linear equations is called Gaussian elimination, commonly referred to as row reduction. It comprises of a series of operations carried out on the relevant coefficients matrix.

[tex]\left [ \begin{matrix}-1 &3 & -2\\ -1 &4 &-3 \\ -1&5 & -4\end{matrix} \right ]\begin{bmatrix}x(1)\\ x(2)\\ x(3)\end{bmatrix}=\begin{bmatrix}4\\ 5\\ 6\end{bmatrix}[/tex]

The matrix is in the form of

[A][X] = [D]

To solve the matrix we represent the matrix in the form of [A : D]

Now writing the augmented matrix

[tex]\left [ \left.\begin{matrix}-1 &3 & -2\\ -1 &4 &-3 \\ -1&5 & -4 \end{matrix}\right| \begin{matrix}4\\5 \\6 \end{matrix}\right ][/tex]

Now solving the matrix

R(2)→R(2) - R(1) and R(3)→R(3) - R(1)

[tex]\left [ \left.\begin{matrix}-1 &3 & -2\\ 0 &1 &-1 \\ 0&2 & -2 \end{matrix}\right| \begin{matrix}4\\1 \\2 \end{matrix}\right ][/tex]

R(1)→R(1) - R(3)

[tex]\left [ \left.\begin{matrix}-1 &1 & 0\\ 0 &1 &-1 \\ 0&2 & -2 \end{matrix}\right| \begin{matrix}2\\1 \\2 \end{matrix}\right ][/tex]

R(3)→R(3) - 2R(2)

[tex]\left [ \left.\begin{matrix}-1 &1 & 0\\ 0 &1 &-1 \\ 0&0 & 0 \end{matrix}\right| \begin{matrix}2\\1 \\0 \end{matrix}\right ][/tex]

Now we can see that the last every elements are zero, which shows

0 = 0

So the system of equation have infinitely many solutions.

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The complete question is:

Attempt to solve the system

-x(1) + 3x(2) - 2x(3) = 4,

-x(1) + 4x(2) − 3x(3) = 5,

-x(1) + 5x(2) - 4x(3) = 6,

using gaussian elimination and explain why this system must have infinitely many solutions.

for a uniform probability density function, the height of the function is determined by the constant value that the function takes over the interval of definition, and it is determined by the requirement that the integral of the function over the interval of definition must be equal to

1. The height of a uniform probability density function over an interval [a,b] is given by:

f(x) = 1/(b-a) for a <= x <= b

where b-a is the length of the interval.

A uniform distribution is a continuous probability distribution and connected to the events which are likely to occur equally. A uniform distribution is explained by two parameters, a and b, where a is the minimum value and b is the maximum value.

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The values of x that make the given vectors orthogonal are xi = 5 and xi = -2.

The dot product of two vectors is equal to zero when the vectors are orthogonal. Thus, to find the values of X such that the given vectors are  orthogonal, we must set the dot product of the two vectors to zero and then solve the resulting equation. The dot product of two vectors is calculated by taking the sum of the product of the corresponding components of the two vectors. In this case, the dot product of the two vectors is calculated as:

(xi + 2xj) • (xi - 5j) = xi2 + 2xixj - 5xi - 10xj

Setting this equal to zero and solving for x, we obtain

xi2 + 2xixj - 5xi - 10xj = 0

Subtracting 2xixj from both sides, we get

xi2 - 5xi - 10xj = -2xixj

Factorizing the left-hand side, we get

(xi - 5)(xi + 2) = -2xixj

Setting the two factors on the left-hand side equal to zero and solving for x, we get

xi - 5 = 0  => xi = 5

and

xi + 2 = 0  => xi = -2

Thus, the values of x that make the given vectors orthogonal are xi = 5 and xi = -2.

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The red harvester ant is closer to ground level.

The relative distance is defined as the product of the relative distance multiplied by the specified time. The relative distance unit is the same as the length unit.

Distance is typically defined as the amount of space between two locations that can be measured. In geography, a few different types of distance are used to explain not only the physical distance between two points but also the variations in distinct racial and ethnic groups, cultural traditions, political ideals, and social mores. A unique unit of measurement known as relative distance is used in geography to explain a variety of societal aspects.

As it has dug deeper (more negative) than the black garden ant. The number -20 39/50 is more negative than -20 7/9.

Therefore, The red harvester ant is closer to ground level.

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Answer:

the answers are D and C they both look like triangle T

Answer:

B&F

Step-by-step explanation:

T bottom is 2 squares, side is 3 squares,

so we just need to look for all the shapes with multiples of 2 & 3

Count each, if base is 2 multiple by 2, 3, 4, etc.,

then side must be multiplied by the same

so only B & F satisfy this rule

Answer: 17500 miles

Step-by-step explanation:

9 kilometers represents the distance from one point to another point. 9 kilometers is equal to 5.59234073013601 miles.

What is the unit of distance?

Any arbitrarily selected and widely used reference standard for length measurement is referred to as a unit of length. The metric system, which is adopted by every nation on earth, is the most widely used in modern times. The American customary units are also in use in the United States.

The S.I. unit of distance is kilometers.

Given that the distance between the two points is 9 kilometers.

1 kilometer is equivalent to 0.621371 miles

9 kilometers is equivalent to 0.621371×9 miles

                                              = 5.59234073013601 miles

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The marginal probability mass function px(x) is:

Px(0) = 0.26

Px(1) = 0.48

Px(2) = 0.26

We have to determine the marginal probability mass function px(x).

We determine the total of each value of y(0, 1, 2) at x = 0 to evaluate the value of Px(0).

The values of y(0, 1, 2) at x = 0 is:

Px(0) = Py(0) + Py(1) + Py(2)

Px(0) = 0.10 + 0.11 + 0.05

Px(0) = 0.26

We determine the total of each value of y(0, 1, 2) at x = 1 to evaluate the value of Px(1).

The values of y(0, 1, 2) at x = 1 is:

Px(1) = Py(0) + Py(1) + Py(2)

Px(1) = 0.17 + 0.23 + 0.08

Px(1) = 0.48

We determine the total of each value of y(0, 1, 2) at x = 2 to evaluate the value of Px(2).

The values of y(0, 1, 2) at x = 2 is:

Px(2) = Py(0) + Py(1) + Py(2)

Px(2) = 0.06 + 0.14 + 0.06

Px(2) = 0.26

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The complete question is:

The joint probability mass function of random variable X and Y is given in the following table:

                                       y

X                   0                1                 2

0                   0.10           0.11            0.05

1                    0.17           0.23           0.08

2                   0.06          0.14            0.06

Find the marginal probability mass function px(x). Round the answers to two decimal places.

Px(0) =

Px(1) =

Px(2) =

Leopard Company’s fiscal year ends on October 31. If the company uses a periodic inventory system, it will record transactions for the few days before and after October 31 as follows:

Leopard Company will record the transactions for the few days before and after October 31 as they occur and will adjust the inventory balance at the end of the fiscal year.Leopard Company will record sales and purchases as they occur, regardless of the fiscal year-end. However, since the company uses a periodic inventory system,

it will need to take a physical count of its inventory at the end of the fiscal year and adjust the inventory balance accordingly. The purpose of this adjustment is to ensure that the inventory balance on the balance sheet accurately reflects the quantity and cost of goods available for sale.

This adjusting entry is important to ensure accurate financial statements and to provide an accurate representation of the company's financial position.

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The corresponding values of x and y is (4, -2), (0, 0) and (2, 10).

What is an equation?

In mathematics, an equation is a formula that expresses the equality of two expressions, by connecting them with the equals sign =.

The given equation is y=2x²+x.

substitute the value of x to get the corresponding value of y

When x = -2

y = 2x² + x

= 2(-2)² + (-2)

= 2(4) - 2

= 6 - 2

= 4

(x, y) = (4, -2)

When x = 0

y = 2x² + x

= 2(0)² + 0

= 2(0) + 0

= 0 + 0

= 0

(x, y) = (0, 0)

When x = 2

y = 2x² + x

= 2(2)² + 2

= 2(4) + 2

= 8 + 2

= 10

(x, y) = (2, 10)

Therefore, the corresponding values of x and y is (4, -2), (0, 0) and (2, 10).

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The instantaneous acceleration at time t = 11.25 s is a = 8 m/s².  

What is acceleration?

A definition of acceleration is the speed at which velocity varies with respect to time. Since acceleration has both a magnitude and a direction, it is a vector quantity. Additionally, it is the first derivative of velocity with respect to time or the second derivative of position with respect to time.

The graph for the acceleration points are given.

Instantaneous acceleration is defined as the ratio of change in velocity during a given time interval such that the time interval goes to zero.

From graph instantaneous acceleration at time 11.25s is 8 m/s².  

Therefore, the value is obtained as a = 8 m/s².  

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Answer:

y<=5

Step-by-step explanation:

Answer:

The w-intercept of the line of fit is 2.75, and it means that a kitten who is just born is predicted to weigh 2.75 ounces. This is because the equation of the line of fit is w = 2.75 + 0.2d, where w is the weight of the kitten in ounces and d is the age of the kitten in days. When d = 0, the equation becomes w = 2.75, so the w-intercept is 2.75.

Step-by-step explanation:

mark as brainliest

D (2,-3)

Just look where the lines meet

Answer: D IS CORRECT

Step-by-step explanation:

The probability of randomly drawing a consonant is 5/8

From the question, we have the following parameters that can be used in our computation:

D, E, C, I, M, A, L, S,

In the above word, we have

Consonant = 5

Letters = 8

So, we have

Probability of consonant = 5/8

Hence, the required probability is 5/8

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Answer: the answer is 5/8

Step-by-step explanation:

If you use the 5 letters

Part A: 3.5x6 feet

14x3=42   24x3=72

42/12=3.5   72/12=6

Part B: 21 square feet

3.5x6=21

Part A: The dimensions of the print are 3.5 feet (width) and 6 feet (length).

Part B: The area of the print is 21 square feet.

We have,

Part A:

Width of the print: 14 inches * 3 = 42 inches

Length of the print: 24 inches * 3 = 72 inches

Convert inches to feet by dividing by 12.

Width of the print in feet: 42 inches / 12 = 3.5 feet

Length of the print in feet: 72 inches / 12 = 6 feet

Part B:

Area of the print:

= 3.5 feet * 6 feet

= 21 square feet

Therefore,

The dimensions of the print are 3.5 feet (width) and 6 feet (length).

The area of the print is 21 square feet.

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Answer:

can u screenshot the question then ill solve it!!

Step-by-step explanation:

(1)a total of 28  ways the student can select 3 writing implements

2)A total of 25 ways the selection be made if no more than one ballpoint pen is selected.

For the first question, the student has three different types of writing implements and thus three different ways to make a selection. The student can choose any combination of three pencils, three ballpoint pens, or three felt-tip pens. This is known as a combination problem and can be solved using the combination formula. The combination formula, which is often written as "n choose k" (where n is the number of objects and k is the number of objects to be selected), can be used to calculate the total number of possible combinations.

In this case, the student has 4 pencils, 3 ballpoint pens, and 1 felt-tip pen, so the combination formula would be (4 choose 3) + (3 choose 3) + (1 choose 3). This simplifies to 28, meaning that there are 28 possible ways the student can select 3 writing implements.  

For the second question, the student is limited to selecting no more than one ballpoint pen. Since the student can only select one ballpoint pen, the combination formula would now be (4 choose 3) + (2 choose 3) + (1 choose 3). This simplifies to 25, meaning that there are 25 possible ways the student can select 3 writing implements without selecting more than one ballpoint pen.

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The number of cubes that would be needed to be added to turn the shape into a solid 3x4x4 cuboid would be = 24 cubes.

A cuboid is defined as the type of quadrilateral that has 6 faces, 8 vertices, and 12 edges.

The volume of the cuboid;

volume of the cuboid;= l×w×h

= 3x4x4

= 48cm³

The volume of each cube = 1cm×1cm×1cm

The number of cubes available= 24 cubes

Therefore the remaining cubes = 48-24 = 24 cubes.

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The inequality for number of hours Aman worked

90.9 hour < h < 127.27 hour

Mathematical expressions with inequalities are those in which the two sides are not equal. Contrary to equations, we compare two values in inequality. Less than (or less than or equal to), greater than (or greater than or equal to), or not equal to signs are used in place of the equal sign.

Given:

Amar travel expenses will cost between $1,800 and $2,400 total.

He has $300 In savings, and he earns $16.50 per hour at his job.

let the number of hours be represented by h.

So, 300 + 16.5h = 1800

16.5h = 1500

h = 90.9

and, if the expense exceeds to $2400

300 + 16.5h = 2400

16.5h =  2100

h = 127.27

Thus, the inequality is

90.9 hour < h < 127.27 hour

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The speed of the truck in km/h at the end of this distance is equal to 81.43 km/h.

The time elapsed is equal to 0.7939 seconds.

In order to determine the speed of the truck in km/h at the end of this distance, we would apply the third equation of motion:

v² = u² + 2as

Where:  

Next, we would convert the value of deceleration in m/s² to km/h² as follows;

Deceleration, a = 6.5 × 60⁴/1000 = -84,240 km/h².

Distance, s = 20/1000 = 0.02 m.

Substituting the given parameters into the third equation of motion, we have;

v² = 100² + 2(-84,240)(0.02)

Speed, v = √(10,000 - 3,369.6)

Speed, v = √6,630.4

Speed, v = 81.43 km/h.

Lastly, we would determine the time by using the first equation of motion:

V = U + at

Time, t = (V - U)/a

Time, t = (100 km/h - 81.43 km/h)/6.5

Time, t = [(100 × 1000/3600) - (81.43 × 1000/3600)]/6.5

Time, t = (27.78 - 22.62)/6.5

Time, t = 5.16/6.5

Time, t = 0.7939 seconds.

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Complete Question:

The driver of a pick up truck going 100 km/h applies the brakes, giving the truck a uniform deceleration of 6.50 m/s^2 while it travels 20.0 m.

a. What is the speed of the truck in km/h at the end of this distance?

b. How much time has elapsed?

The three angle bisectors of a triangle are concurrent. Their point of concurrence is called the incenter.

The triangle's three angle bisectors are contemporaneous, which means they cross at the same place.

The incenter is the location where the angle bisectors coincide.

1. The circle's inscribed center is known as the incenter.

2. The incenter is equidistant from the triangle's sides.

More examples of agreement

The centroid is the location where all of a triangle's medians meet.

The triangle's circumcenter is where the perpendicular bisectors of its sides meet.

The intersection of the perpendiculars emanating from the vertices on the opposing sides of a triangle is known as the orthocentre.

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Answer:

10

Step-by-step explanation:

All possible permutations except those that are not shown by the clock.

Eg:92:02

At the end of 2018, the world population was approximately 7.53 billion people. This figure is calculated by taking the total population at the end of 2017, 7.4 billion people, and multiplying it by the population growth rate of 1.07%..

This means that the world population increased by approximately 130 million people in 2018. This population growth rate is consistent with the average growth rate of the world population over the last decade. While the population growth rate has been decreasing over the past few decades, it is still relatively high at 1.07%.

The high population growth rate is primarily due to high fertility rates in developing countries and a longer life expectancy in developed countries. This means that more people are born and fewer people die each year. As a result, the total population of the world increases each year.

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