A particular brand of toilet paper is offered at two stores

The statement that proves that there is a unique element x such that P(x) is true is: c) 3x(P(x) & Ay(P(y) --> x = y)).

The field of mathematics concerned with probability is known as probability theory. Although there are various distinct interpretations of probability, probability theory approaches the idea rigorously mathematically by articulating it through a set of axioms.

Here,

In this statement, the quantifier "3x" says that for every element x, and the condition "P(x)" says that x satisfies a certain property. The statement "Ay(P(y) --> x = y)" says that for every other element y, if y also satisfies the property, then it must be equal to x. Hence, if there is a unique element x such that P(x) is true, then this statement is true.

Option (a) says that for every element y, P(y) is equivalent to y = x, but this statement alone does not imply that there is only one element that satisfies P(x).

Option (b) says that for every element x, if P(x) is true, then there is no other element y that also satisfies P(y) and is not equal to x. However, this statement alone does not imply that there exists an element x that satisfies P(x).

The following assertion establishes that there is a unique element x such that P(x) is true: c) 3x(P(x) & Ay(P(y) --> x = y)).

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Answer:

yes it will fit;  there would be 35.2 sf remaining

Step-by-step explanation:

Find the dimensions of the table in inches:

2.5/5 = x/6

x = 3 in

2.5/5 = x/8

x = 4 in

Scaled table area = (3 in)(4 in) = 12 in²

Scaled room area = (4 in)(5.2 in) = 20.8 in²

12 < 20.8, Therefore, the table would fit.

How much room is left over:

Find the room dimensions in feet.

2.5/5 = 4/x

x = 8 ft

2.5/5 = 5.2/x

x = 10.4 ft

Room area = (8)(10.4) = 83.2 sf

Table area = (8)(6) = 48 sf

83.2 - 48 = 35.2 sf space would remain

Step-by-step explanation:

The z-score for the price of the family's home can be calculated as follows:

z = (350,000 - 375,000) / 7,500 = -3.333

A negative z-score indicates that the value is below the mean. Therefore, the price the family paid for their home is lower than the average price of homes in their neighborhood, so it can be considered unusual.

So, the answer is: The z-score is -3.333 and it is unusual.

Therefore , the solution of the given problem of linear equation comes out to be the decision variables x1, x2, x3, and x4 must be non-negative.

The formula y=mx+b is used to draw a simple regression graph. The inclination is B, and the y-intercept is m. It is frequently referred to as a "simple algorithm incorporating many factors" even though the section before it includes independent parts. Bivariate linear equations only contain two variables. Application problems with linear equations have no known answers. Y=mx+b, also known as mx+b, provides a number of straightforward equations.

Here,

To solve this linear programming problem, we can use the following decision variables:

Let x1 = number of pancakes

Let x2 = number of eggs

Let x3 = number of sausage patties

Let x4 = number of slices of toast

The objective function is to minimize cost:

Minimize Z = 0.5x1 + 0.2x2 + 0.3x3 + 0.1x4

Subject to the following constraints:

Calories: 120x1 + 90x2 + 280x3 + 70x4 >= 420

Iron: 1.2x1 + 1.8x2 + 2.4x3 + 0.8x4 >= 5

Calcium: 10x1 + 20x2 + 90x3 + 20x4 >= 400

Protein: 3x1 + 6x2 + 9x3 + 3x4 >= 20

Fiber: 2x1 + 0.5x2 + 1x3 + 1x4 >= 12

Fat: 2x1 + 6x2 + 20x3 + 1.5x4 <= 20

Cholesterol: 50x1 + 190x2 + 60x3 + 0x4 <= 30

The decision variables x1, x2, x3, and x4 must be non-negative.

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Answer: 15a

Step-by-step explanation: 6 + 9 = 15, 6a + 9 = 15a

The grouped frequency distribution for the data is shown below.

A grouped frequency distribution is a way of summarizing and organizing raw data into a more manageable and meaningful form. The data is divided into intervals or "classes", and the number of data points that fall into each class is counted and recorded as the frequency of that class. This allows for easier interpretation and comparison of the data, as well as identifying patterns or trends. The grouped frequency distribution is commonly displayed in a table or a histogram.

Given that,

79, 85, 71, 83, 78, 67, 70, 87, 81, 86, 74, 67, 68, 76, 66, 72, 76, 80

Now, arranging the given data in ascending order,

66, 67, 67, 68, 70, 71, 72, 74, 76, 76, 78, 79, 80, 81, 83, 85, 86, 87

The grouped frequency distribution for the data:

Test Scores                   Frequency

65.5 - 71.5                        6

71.5 - 77.5                         4

77.5 - 83.5                        5

83.5 - 89.5                        3

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The inverse operations are (b) and (c)

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

m/4-18= -10

Operation 1: Option (B)

Add 18 to both sides of the equation, and then multiply through by 4

Using the above as a guide, we have the following:

m/4 = 8

m = 32

Operation 2: Option (C)

Multiply each side by 4 and then add 72

Using the above as a guide, we have the following:

m - 72 = -40

m = 32

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The ordered pairs that represent the linear function is Option A, B and C.

A linear function in mathematics is one that has either one or two variables and no exponents. It is a function with a straight line as its graph. If the function has more variables, they should all be constants or known variables in order for the function to continue to function as a linear function.

To determine which ordered pairs represent a linear function we use the equation of slope.

The slope is given as:

m = (y2 - y1) / (x2 - x1)

Option A:

m = (5 - 8) / (-4 + 8) = -3 / 4

m = (2 - 5) / (0 + 4) = -3/ 4

The slopes between the consecutive points are same hence option A represents a linear equation.

Similarly, for option B:

m = (1 + 2) / (2 + 1) = 1

m = (4 - 1) / (5 - 2) = 1

Option B is correct.

Option C:

m = (5 - 8) / (1 + 2) = -3 / 3 = -1

m = (2 - 5)/ (4 - 1) = -1

Option C is correct.

Option D:

m = (1- 0)/ (1 + 1) = 1/2

m = (5 - 1) / (7 - 1) = 4 / 6 = 2/3

Option D is incorrect.

Hence, the ordered pairs that represent the linear function is Option A, B and C.

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The height of the building is 92.52 ft

What is a right-angle triangle?

It is a triangle in which one of the angles is 90 degrees and the other two are sharp angles. The sides of a right-angled triangle are known as the hypotenuse, perpendicular, and base.

Using law of sines:

first angle A:

sum of all angles in a triangle = 180 degree

A+B+C = 180

A+90+55 = 180

=> A+145 =180

=> A= 180 - 145 = 35 degrees

Use:

AB= c, BC=a

(sin A)/a = (sin C)/c

=> (sin 35)/40= (sin 55)/c

=> -0.4281/40= -0.99/c

=> 0.0107 = 0.99/c

=> c= 0.99/0.0107 = 92.52 ft

The height of the building is 92.52 ft

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Answer:

Step-by-step explanation:

14

Answer:

y=-7/2x-9/2

Step-by-step explanation:

The side lengths of rectangle B, given that they are proportional to rectangle A would be :

To find proportionality, the dimensions of Rectangle B which correspond to Rectangle A, need to be divisible by, or be able to divide Rectangle A's dimensions without leaving a remainder.

The side lengths of 3 cm and 1. 75 cm are proportional because:

= Dimensions A / Dimensions of B

= 6 / 3 :  3. 5 / 1. 75

= 2 : 2

The side lengths of 5. 25 and 9 cm are also proportional because :

= 9 / 3 : 5 . 25 / 1 . 75

= 3 : 3

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The rest of the question is:

What could be the side lengths of rectangle B?

A. 3cm and 1.75cm

B. 5cm and 2.5cm

C.7 cm and 7cm

D. 12cm and 5 cm

E. 5.25cm and 9cm

The time it took Aniya to do cartwheels, which can travel at 0.5 mph for a total distance of 0.1 miles, is 12 minutes.

The distance, time, and average speed formulas are based on distance equals to time multiplied by the average speed.

Conversely, the total time taken to cover a certain distance is equal to distance divided by the average speed.

Total distance traveled doing cartwheels = 0.1 miles

Average speed = 0.5 mph

Time = Distance/Average speed

= 0.1/0.5

= 0.2 hours

1 hour = 60 minutes

= 12 minutes (0.2 x 60)

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Using Hamilton's method of apportioning, 21 salespeople can be assigned in the table in the following order:

2, 5, 6, 8.

The approach that now bears his name was first proposed by Alexander Hamilton. Congress endorsed his approach in 1791, but President Washington rejected it. Later, in 1852, it became widely used until 1911. He starts by calculating the precise number of items that each group needs.

Since in the interested question it's about salesperson assigned, we’ll use the language of shift and hours, so we can determine how many salespersons each shift should get.

Now total no. of customers given = 125 + 305 + 439 + 515

                                                        = 1375

Now total no of salesperson available = 21.

So, the divisor = 1375/21

                        = 65.47

Now using Hamilton's method when we divide the average customers per shift by the divisor, we get the no. of salesperson assigned.

So, the salesperson assigned are:

Morning = 125/65.47

              = 2

Midday = 305/65.47

             = 5

Afternoon = 430/65.47

                 = 6

Evening = 515/65.47

               = 8 (Decimals rounded according to Hamilton's principle)

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Answer:

Option B. 9 inches

Step-by-step explanation:

Given

Rectangle MNOP and Rectangle WYXZ are similar

Scale factor of the two Rectangles = 2:3 or 2/3

MN=6 in

So

MN/WY = 2/3

6/WY = 2/3

WY = 6×3/2

WY = 18/2

WY=9

Therefore length of side WY is 9 inches

The limit when we approach x = 3 from the right side is:

[tex]\lim_{x \to 3^+} f(x) = 4[/tex]

Here we have the graph of a function f(x), and we want to find the value of the limit:

[tex]\lim_{x \to 3^+} f(x)[/tex]

That would be the value of f(x) as it approaches x from the right side, in this case, will be the value on the graph when we go from right to left.

We can see an open circle at y = 4

Then we can conclude that the value of the limit when we approach x  = 3 from the positive side is:

[tex]\lim_{x \to 3^+} f(x) = 4[/tex]

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Answer:

72 inches

Step-by-step explanation:

What we know:

1 yard = 3 feet

3 feet = 36 inches

If 1 yard equals 3 feet, which equals 36 inches, then we can multiply 1 yard, 3 feet, and 36 inches by 2.

1 yard * 2 = 2 yards

3 feet * 2 = 6 feet

36 inches * 2 = 72 inches.

So, the answer is 72 inches.

Answer:

2.15 * 10⁶

Step-by-step explanation:

1,000,000= 1 * 10⁶

2,150,000= 2.15 * 10⁶

Answer:

Check the picture below.

[tex]~~~~~~\textit{initial velocity in feet} \\\\ h(t) = -16t^2+v_ot+h_o \quad \begin{cases} v_o=\textit{initial velocity}&16~\frac{ft}{s}\\ \qquad \textit{of the object}\\ h_o=\textit{initial height}&192~ft\\ \qquad \textit{of the object}\\ h=\textit{object's height}&h\\ \qquad \textit{at "t" seconds} \end{cases} \\\\\\ h(t)=-16t^2+16t+192\hspace{5em}f(x)=-16x^2+16x+192[/tex]

now, keeping in mind that x-axis is the seconds, however a parabola could go into the 2nd, 3rd and 4th Quadrants, but for this case, we only need it in the 1st Quadrant, because the seconds are positive, it begins at 0 seconds and goes up, then down and hits the ground later on when f(x) = 0, hmmm when is that?

[tex]\stackrel{f(x)}{0}=\stackrel{ \textit{hits the ground} }{-16x^2+16x+192}\implies 0=-16() \\\\\\ 0=x^2-x-12\implies 0=(x+3)(x-4)\implies x= \begin{cases} -3 ~~ \bigotimes\\\\ ~~ 4 ~~ \checkmark \end{cases}[/tex]

now, both values are valid for "x", however for this specific case, we can't have negative seconds, so the negative value won't work.  So the appropriate domain or values for "x" are from 0 to 4, the object went up and down in 4 seconds flat.

The probability of getting at least one defective disk in a lot of 50 is 0.2217.

Probability refers to potential. A random event's occurrence is the subject of this area of mathematics. The range of the value is 0 to 1. Mathematics has incorporated probability to forecast the likelihood of various events. The degree to which something is likely to happen is basically what probability means. You will understand the potential outcomes for a random experiment using this fundamental theory of probability, which is also applied to the probability distribution.

Given that,

P (defective disc) = 0.005

P (non-defective) = 1 - 0.005 = 0.995

Now,

P(Getting one defective) = 1 - P(getting 50 non -defective)

= 1 - (0.995)^(50)

= 1- 0.7783

= 0.2217

Hence, the probability of getting at least one defective disk in a lot of 50 is 0.2217.

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The number of children who ordered hamburgers from class A = ( 5/6 )A , where A is the total number of students in the class A

Equations are mathematical statements with two algebraic expressions flanking the equals (=) sign on either side.

It demonstrates the equality of the relationship between the expressions printed on the left and right sides.

Coefficients, variables, operators, constants, terms, expressions, and the equal to sign are some of the components of an equation. The "=" sign and terms on both sides must always be present when writing an equation.

Given data ,

Let the number of students in class A = A

Let the number of students in class B = B

Let the number of students in class C = C

Now , the equation will be

The number of students who ordered hamburgers is = ( 5/6 )A

The number of students who ordered hot dogs is = ( 2/4 )B

The number of students who ordered hot dogs is = ( 1/2 )B

The number of students who ordered chicken wings is = ( 1/2 )C

Hence , the number of students who ordered hamburgers , hot dogs and chicken wings are ( 5/6 )A , ( 1/2 )B and ( 1/2 )C respectively

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The probability that the thread length of a randomly selected bolt is farther than 2. 5 standard deviations from its mean value is 0.62%.

If the thread length of bolts is normally distributed, then we can use the concept of probability to determine the probability that the thread length of a randomly selected bolt is farther than 2.5 standard deviations from its mean value.

This can be calculated using the area under the normal curve.

Specifically, the area to the right of 2.5 standard deviations is 0.0062, meaning that there is only a 0.0062 probability (or 0.62%) that the thread length of a randomly selected bolt is farther than 2.5 standard deviations from its mean value

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The number of sheets that can be cut from 22 1/8 inches would be 4 25/38

To solve this, I would first have to convert the values to decimals

4 3/4in = 4.75 inches

22 1/8 = 22.125

To get the full length that can be cut from the 22.125, we would have to divide. That is;

22.125 / 4.75

= 4.657

4 25/38

The number of full sheet that can be cut from this would be 4 25/38

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The required answer of other parts are 4)  1230, 5) Students = 1230 + 53t, 6)  2025 students.

In mathematics, the middle value—which is determined by dividing the sum of all the values by the total number of values—is the average value in a set of numbers. To calculate the average of a set of data, add up all the values and divide the result by the total number of values.

As you have calculated average students in a year is 53.So, we can say students are increasing by 53 each year.

4) in 2003, number of students are 1389 and in three year students increase by 53* 3 = 159

in 2000,

Students = 1389 - 159

= 1230

5) We have 1230 students in 2000, and students will increase by 53 each year.

So, for t years equation will be

Students = 1230 + 53t

6) There is 15 years to come 2015, using our equation;

Students = 1230 + 53t

Students = 1230 + 53(15)

Students = 1230 + 795

= 2025 students.

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