find mean, median, mode, and range for class 1, class 2 and class 3

The percent equation in the form of p = percent x whole is

p = 1.25 x 24

The percentage is calculated by dividing the required value by the total value and multiplying by 100.

Example:

Required percentage value = a

total value = b

Percentage = a/b x 100

Example:

50% = 50/100 = 1/2

25% = 25/100 = 1/4

20% = 20/100 = 1/5

10% = 10/100 = 1/10

We have,

Number of members in the club = 24

Number of members in the club next year = 125% of 24

The percent equation of 125% of 24.

p = 125/100 x 24

p = 1.25 x 24

p = 5/4 x 24

p = 5 x 6

p = 30

Thus,

The percent equation is p = 1.25 x 24

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Answer:

---------------------------------

It is assumed the provided numbers are the zero's of the polynomial function.

We know complex zero's come in pairs if function has rational constants.

So we should have zero's: 8, 3, -i and i.

Find the polynomial:

The solution to given problem is  since E(Wu) < Wr, there will be no migration from rural areas .

The subject of probability in mathematics is concerned with numerical representations of the likelihood that an event will occur or that a statement is true. An event's probability is a number between 0 and 1, with 1 typically signifying certainty and 0 typically signifying impossibility.

Here,

Since ,the rural wage is $2 per day. Urban modern sector employment can be obtained with .24 probability and pays $4 per day. The urban traditional sector pays $1 per day.

As long as the rural pay (Wr) differs from the anticipated urban wage (E(Wu)), according to the Harris-Todaro model, there will be movement between rural and urban areas.

Here, Wr equals $2.00.

Determine the anticipated urban wage now.

E(Wu) = p

*Wum+(1-p)

*Wut

Where p is the likelihood of finding employment in the urban modern sector, which is 0.25, and Wum is the wage for such employment, which is $4.00.

Wut = $1.00 in wages for jobs in the typical urban sector.

Hence, E(Wu) = 0.24*$4.00+0.76*$1.00 = $1.72

Since E(Wu) < Wr, there will be no migration from rural areas .

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In general, linear equations have one solution. However, they can have infinitely many solutions in some cases.

A linear equation in mathematics is an equation that can be written in the form

ax + b = 0

The values of x that make this equation true are the solutions to the equation. Generally speaking, linear equations have one solution, which means that there is only one value of x that will make the equation true. However, in some cases, linear equations can have infinitely many solutions. For example, if a = 0 and b = 0, then any value of x will make the equation true.

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To calculate the number of cycles we need above 3 options

Stop Watch Time Study:

Stop Watch Time Study is one of the equipment used for Time Study. It is employed for measuring the time taken by an operator to complete the work. Stop watch used for time study purpose should be very accurate and preferably be graduated in decimals so that it can recover even up to 0.01 minute.

A large hand in the stop watch is revolved at a speed of one revolution per minute. The dial of the stop watch is divided into 100 equal divisions. The small hand inside the stop watch revolves at a speed of one revolution in 30 minutes.

Given that

In a stopwatch time study, the number of cycles that must be timed is a function of:

options are

(i) the variability of observed times.

(ii) the desired accuracy for the estimated job time.

(iii) the desired level of confidence for the estimated job time

To calculate the number of cycles we need above 3 options

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Finn had solved the bracket in an incorrect way because of which he got a wrong answer.

Here we see that the equation is

4x + 6 = 2 + 3(x + 2)

Here we see that Finn has opened the brackets to write

4x + 6 = 2 + 3x + 2

Here is the point where he made a mistake.

When we have a term that needs to be multiplied by the terms in a bracket, we need to multiply it with every term inside the bracket.

This means, that 3 needs to be multiplied with x as well as 2.

Hence we get

4x + 6 = 2 + 3x + 6

Now if we deduct 3x from both sides we will get

x + 6 = 8

Now deducting 6 from both sides gives us

x = 2

Hence the value of x is 2

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The cost of each apple is equal to $0.23.

An equation can be represented by a linear function. The standard form for the linear equation is: y= mx+b , for example, y=8x+3. Where:

m= the slope.

b= the constant term that represents the y-intercept.

For the given example: m=8 and b=3.

The question gives:

You should convert the data into an equation:

15A+2.75=6.20

15A=6.20-2.75

15A=3.45

A=3.45/15

A=0.23

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the built-in math function is square root or cube root.

What is a function?

A unique kind of relation called a function is one in which each input has precisely one output. In other words, the function produces exactly one value for each input value. The graphic above shows a relation rather than a function because one is mapped to two different values. The relation above would turn into a function, though, if one were instead mapped to a single value. Additionally, output values can be equal to input values.

The x-values are input into the function machine. The function machine then performs its operations and outputs the y-values. The function within can be any function.

The correct options are:

A solution to the equation x2=81 is x=9.

A solution to the equation x3=125 is x=5.

A solution to the equation x3=216 is x=6.

Hence the built-in math function is square root or cube root.

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If the probability of a dancing lady accepting an invitation to dance is 0.18.The accepted number of ladies asked before is 7.14 .

Probability is a branch of mathematics that quantifies the likelihood of an event occurring or the likelihood of a statement being true. Probability is a number between 0 and 1, with 0 generally indicating impossibility and 1 indicating certainty that an event will occur. A simple example is tossing a fair (unbiased) coin. Since the coin is fair, the two outcomes (heads and tails) are equally likely. The probability of heads is the same as the probability of tails. Since no other outcome is possible, the probability of heads or tails is 1/2 (also written as 0.5 or 50%).

According to the above discussion:

P{x(bar) (0.18)} = 0.07142371

                       = 7.14%

Therefore, the expected number is 7.14%.

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Answer:

1/90

Step-by-step explanation:

Answer: x = 19

Step-by-step explanation:

Let's start with what we know. The area of a trapezoid is:

(B1 + x) * H /2 = Area

So here we have:

(25 + x)* 7 /2 = 154.

We multiply by 2 on both sides:
(25 + x)*7 = 308

Divide by 7 on both sides:
25 + x = 44

Subtract 25 from both sides:
x = 19.

So x = 19.

Answer: 19 inches

Step-by-step explanation:

The shape is a trapezium. (You can tell as there is one pair of parallel sides.) Therefore, to find the area, the following formula is needed:

Area of a trapezium =  [tex]\frac{a + b}{2} * h[/tex]

a and b represent the parallel sides

Next, plug in the given values:

[tex]154 = \frac{x + 25}{2} * 7[/tex]

Rearrange the equation to get x on its own:

[tex]154 = \frac{x+25}{2} * 7\\\\\frac{154}{7} = \frac{x+25}{2} \\\\22 = \frac{x+25}{2} \\\\22*2 = x + 25\\\\44 = x + 25\\\\44-25 = x\\\\x = 19\\\\[/tex]

Therefore, the answer is 19 inches. Remember your units!

The equation of the line through [tex](1,2)[/tex] which make equal intercepts on the axis [tex]x+y=3[/tex]

The equation of the line through (1,2) makes an equal intercept on the axis

The formula of the intercept form is

[tex]\frac{x}{a} +\frac{y}{b} =1[/tex]

If they make an equal intercept

[tex]a=b\\\frac{x}{a} +\frac{y}{a} =1\\x+y=a[/tex]

Put the value of the point in the axis, and we get.

[tex]1+2=a\\a=3[/tex]

Put the value in the equation, and we get.

[tex]x+y=3[/tex]

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Answer:

2/ 95

3/ 72

4/ 453

Step-by-step explanation:

2/ Take 2185 divided by 23 = 95

3/ Take 3888 divided by 54 = 72

4/ Take 7248 divided by 16 = 453

By using probability, it can be calculated that-

the optimal number of cookies to make is 2400 dozens

What is probability?

Probability gives us the information about how likely an event is going to occur

Probability is calculated by Number of favourable outcomes divided by the total number of outcomes.

Probability of any event is greater than or equal to zero and less than or equal to 1.

Probability of sure event is 1 and probability of unsure event is 0.

Here

Each dozen of cookies is sold for $1.99 and cost $0.99

Shortage = $(1.99 - 0.99) = $1

Cookies that are not sold at the end of the day are reduced to $0.49

Overage = $(0.99 - 0.49) = $0.5

Service = [tex]\frac{1}{1 + 0.5}\\[/tex]

              [tex]=\frac{1}{1.5}\\\\=\frac{2}{3}\\\\=0.67[/tex]

Now the table is

Demand               Probability of demand             Cumulative probability  

(Dozen)

1800                          0.05                                             0.05

2000                         0.15                                              0.2

2200                         0.2                                               0.4

2400                         0.3                                                0.7

2600                         0.2                                               0.9

2800                         0.1                                                 1

Here the closest to service is 0.7

So the optimal number of cookies to make is 2400 dozens

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Complete Question

Famous Albert prides himself on being the Cookie King of the West. Small, freshly baked cookies are specialty of his shop. Each dozen sells for $1.99 and costs $0.99, which includes handling and transportation. Cookies that are not sold at the end of the day are reduced to $0.49 and sold the following day as day-old merchandise. Famous Albert has asked for help to determine the number of cookies he should make each day. From an analysis of past demand he estimates demand for cookies as

Demand                Probability of demand            Cumulative probability    

(Dozen)

1800                          0.05                                          

2000                         0.15                                            

2200                         0.2                                              

2400                         0.3                                              

2600                         0.2                                            

2800                         0.1                                                

Using the information in q8, what is the optimal number of cookies to make? 2,600 dozen 2,400 dozen 2,200 dozen 2,000 dozen 2,800 dozen

2,600 dozen 2,400 dozen 2,200 dozen 2,000 dozen 2,800 dozen

Answer:3

Step-by-step explanation:

The products result in a sum or difference of cubes are

(x - 1)(x² + x + 1) and (x + 4)(x² - 4x + 16).

What is sum or difference of cubes?

The term "sum of cubes" refers to a polynomial with the formula a^3 + b^3. The term "difference of cubes" refers to a polynomial with the form

a^3 - b^3.

The formulas for sum of cubes and difference of cubes are given:

Sum of cubes: (a + b)(a²-ab + b²) = a³ + b³

Difference of cubes: (a-b)(a² + ab + b²)=a³-b³

We have to check which products result in a sum or difference of cubes.

Consider,

(1) (x - 4)(x^2 + 4x - 16)

(x - 4)(x^2 + 4x - 16) = x^3 - 8x^2 + 32x - 64

It is not a sum or difference of cubes.

(2) (x-1)(x²-x+1)

(x - 1)(x² - x + 1) = x^3 - 2x^2 + 2x - 1

It is not a sum or difference of cubes.

(3) (x - 1)(x² + x + 1)

(x - 1)(x² + x + 1) = x^3 - 1

This is the difference of cubes.

(4) (x + 1)(x^2 + x - 1)

(x + 1)(x^2 + x - 1) = x^3 + 2x^2 - 1

It is not a sum or difference of cubes.

(5) (x + 4)(x² - 4x + 16)

(x + 4)(x² - 4x + 16) = x^3 + 64

This is the sum of cubes.

(6) (x + 4)(x^2 + 4x + 16)

(x + 4)(x^2 + 4x + 16) = x^3 + 8x^2 + 32x + 64

It is not a sum or difference of cubes.

Hence, the products result in a sum or difference of cubes are

(x - 1)(x² + x + 1) and (x + 4)(x² - 4x + 16).

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The example of the function equation is f(x+3) = x² + 8x + 16 .

In the question ,

we have been asked to give an example of the function equation .

The Function Equation is defined as equations where the unknowns are functions, rather than a traditional variable.

For Example :

If f(x+3) = x² + 8x + 16 , then what is f(x)?

the above question is an example of function equation .

to find the solution ,

we let ,y = x + 3; then x = y - 3 .

Substituting the value of x in f(x+3) we get ,

f(y) = 2y² + 2y + 1 .

hence f(x) = 2x² + 2x + 1  that is = (x + 1)²  .

Therefore , the example is  f(x+3) = x² + 8x + 16  .

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TRUE: A molecule can adopt a variety of geometries known as conformations by the rotation and bending of its bonds.

Conformational isomerism, often known as stereoisomerism, is a type of stereoisomerism in chemistry in which the isomers can be changed to one another simply by rotations about formally single bonds. Different conformations refer to any two arrangements of atoms in a molecule that differ by rotation about a single bond, whereas conformations that correspond to local minima on the potential energy surface are more specifically known as conformational isomers or conformers.

As a result, conformational isomers differ from other classes of stereoisomers (such as configurational isomers), where interconversion entails the necessary breaking and reformation of chemical bonds.

Thus, the statement, The different geometries that a molecule can attain by bond rotations and bends are called conformations is TRUE

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Answer: i believe it is

x-intercept(s): (−3,0) y-intercept(s): (0,3)

and

Step-by-step explanation:

substitute in 0 for y and solve for x and do that for the other just 0 for x and solve for y

Answer:

-17/8

Step-by-step explanation:

-10-7         -17

----------  = -------

4-(-4)          8

The  difference between addition and subtraction of polynomials is that addition involves like terms  and subtraction  involves taking one polynomial away from another.

A polynomial is characterized as an expression that is composed of variables, exponents, and constants, that are combined utilizing numerical operations such as addition, subtraction, multiplication, and division (No division operation by a variable).In addition to polynomials, the like terms are included whereas, in subtraction, the like terms are subtracted. The addition of polynomials involves combining like terms to form a single expression, while subtraction involves taking one polynomial away from another. In addition, when subtracting polynomials, the sign of each term in the second polynomial needs to be changed (from positive to negative, or from negative to positive).

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The function is linear when the highest degree the the function is 1 .

In the question ,

we have been asked about when a function is called as linear .

By the definition ;

the Linear function is the function that has the highest degree as 1 and

On the coordinate plane the linear function represents the straight line .

the general form of the linear function is f(x) = mx + d ,

the slope is "m" and the y intercept is "d" .

The Examples of Linear Function are

f(x) = 3x + 2 ,

f(x) = -6x + 7

f(x) = 8 .

Therefore , the characteristic for the function to be linear is explained above.

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The predicted value and residual for y is 9.4 and -0.4 respectively.

In statistics, a regression equation is used to determine whether or not there is a relationship between two sets of data. If you measure a child's height every year, you might discover that they grow about 3 inches per year. A regression equation can be used to model that trend (growing three inches per year). In fact, most things in the real world (from gas prices to hurricanes) can be modelled mathematically, allowing us to forecast future events.

Regression equations can assist you in determining whether your data can be fit to an equation. This is extremely useful if you want to make predictions based on your data, whether they are future predictions or indications of past behaviour.

Given,

Regression equation is y=11-038x

Observed value of y = 9

predicted value of y can be determined by substituting x=2 in the equation

y=11-0.8(2)=11-1.6=9.4

The residual can be calculated by formula,

residual = observed value - predicted value

residual = 9 - 9.4

residual = -0.4

Thus, the predicted value is 9.4 and residual is -0.4.

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Your question is incomplete, here is the complete question.

suppose the estimated regression equation is given by y=11-0.8x . what are the predicted value of y and the residual when x is 2 and y is observed to be 9?

If the measure of angle 1 is 50° then the measure of angle 2 is 30°.

We know that line l ∥ line m and line p is the transversal.

Let's label the diagram as follows.

Now, by the vertically opposite angles theorem,

we have angle 1 = ∠TPQ = 50°

now ∠P and ∠Q form interior angles,

Hence, by the interior angles theorem, we have

∠P + ∠Q = 180°

The sum of the interior angles of the angles formed by the transversal is 180°.

50° + ∠Q = 180°

subtracting 50° on both sides we get,

∠Q = 180° - 50°

∠Q = 30°

Hence, the measure of angle 2 is 30°.

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The complete question is -

In the given figure, line l and line m are parallel and line p is transversal If the measure of 1 is 50 degrees what is the measure of 2?

A data set's attributes are enumerated through descriptive statistics. You can use inferential statistics to test a hypothesis or determine whether your data can be applied to a larger population.

Descriptive statistics concentrate on describing the features of a dataset that are readily evident (a population or sample). In contrast, inferential statistics concentrate on drawing conclusions or generalisations from a sample of data in a larger dataset.

The information from a research sample is described and condensed using descriptive statistics. We can draw conclusions about the larger population from which we drew our sample using inferential statistics.

The area of statistics known as descriptive statistics is focused on providing a description of the population being studied. A type of statistics known as inferential statistics concentrates on inferring information about the population from sample analysis and observation.

Hence we get the required answer.

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Answer:

B

Step-by-step explanation:

The median is the mid point value. Basically the median is whatever number is in the middle.

The wait time required for 200 people are in line would be 40min.

Given that:

wait time to ride the ferris wheel for 75 people is 15 minutes.

we have given 200 people that are in line to ride.

for each person in line from the beginning is an additional 0.2 wait time.

so, the number of people in line n times = 0.2 = wait time.

Therefore,

                 [tex]\frac{15\ min}{75 \ people}=0.2\frac{min}{people} \\\\wait \ time = n*0.2\frac{min}{people} \\\\wait\ time = (200)*0.2\frac{min}{people}\\\\wait\ time = 40 min[/tex]

Hence, The wait time required for 200 people are in line would be 40min.

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The amount of a good that is demanded will decrease as its price rises

According to the Law of Demand, there is an indirect correlation between a good or service's price and the amount of that good or service that customers are willing and able to purchase .In other words, if an item's price increases, people are less able and willing to buy it, and vice versa.

According to the law of demand, the demand curve demonstrates the inverse relationship between the amount of items sought and price.

The amount of a good that is demanded will decrease as its price rises. The demand curve will therefore have a negative slope if the law of demand and its underlying assumptions are true.

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The missing number of the algebraic expression is; x = 15

We are given the algebraic expression that we should find the number x, If 11/3 of x is 55.

This can be expressed as;

(11/3)x = 55

Multiply through by 3 to get;

(11/3)x * 3 = 55 * 3

11x = 165

Divide both sides by 11 to get;

11x/11 = 165/11

x = 15

Which we conclude that 15 is the missing number.

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By using the concept of probability, it can be calculated that -

Probability that a two-card hand from a standard deck of 52 cards contains exactly 2 face cards (a face card is a king, queen, or jack) = [tex]\frac{11}{221}[/tex]

What is probability?

At first it is important to know about probability of an event.

Probability gives us the information about how likely an event is going to occur.

Probability is calculated by Number of favourable outcomes divided by the total number of outcomes.

Probability of any event is greater than or equal to zero and less than or equal to 1.

Probability of sure event is 1 and probability of unsure event is 0.

Number of face card = 12

Total number of cards = 52

Probability that a two-card hand from a standard deck of 52 cards contains exactly 2 face cards (a face card is a king, queen, or jack) = [tex]\frac{{12 \choose 2}}{{52 \choose 2}}[/tex]

                                                                                                = [tex]\frac{66}{1326}[/tex]

                                                                                                = [tex]\frac{11}{221}[/tex]

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