How do you determine which table represents a function?.

The equation we get from the given information that is one award that cost $12.50 was torn. Each letter costs $0.40 to engrave is 2.25x - 0.15y=0.

Given that,

We have to compose an equation for this math issue. One award that cost $12.50 was torn. Each letter costs $0.40 to engrave. The identical trophy cost $14. 75 at another location. Cost of engraving: $0.25

We know that,

Let us take the,

Trophy cot as x and engraving cot as y

We can write as

12.5x+ 0.4y= 14.75x+ 0.25y

12.5x- 14.75x+ 0.4y -0.25y=0

-2.25x + 0.15y=0

2.25x - 0.15y=0

Therefore, The equation we get from the given information that is one award that cost $12.50 was torn. Each letter costs $0.40 to engrave is 2.25x - 0.15y=0.

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The value of x for the given triangle by a similar triangle rule will be 5.

If two figures look an exact shape but their size could be small or big then both figures are called similar figures.

When anything has identical pieces facing one another or revolving around an axis, it is said to be symmetrical.

As per the given triangles,

By a similar triangle rule,

(2x - 8)/(5x - 19) = (x + 2)/(3x + 6)

(2x - 8)/(5x - 19) = (x + 2)/3(x + 2)

(2x - 8)/(5x - 19) = 1/3

6x - 24 = 5x - 19

x = 5

Hence "The value of x for the given triangle by a similar triangle rule will be 5".

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Answer:

yes

Step-by-step explanation:

3 is inside the brackets

Answer:

  no solution

Step-by-step explanation:

You want to solve the equation x/12+1=x/3-x/4.

There are a couple of ways you can solve this. If you're intimidated by the fractions, you can get rid of them by multiplying the equation by a common denominator. In this case, multiplying by 12 gives ...

  x +12 = 4x -3x . . . . . . original equation multiplied by 12

  x +12 = x . . . . . . . . . . simplified

  12 = 0 . . . . . . . . . . . . subtract x from both sides

This equation is plainly false. No value of x will make it be true.

The given equation has NO SOLUTION.

You can do the arithmetic with the coefficients as they are:

  x/12 +1 = x(1/3 -1/4)

  x/12 +1 = x/12

  1 = 0 . . . . . . . . . . subtract x/12; false

The equation has NO SOLUTION.

__

Additional comment

It is a good idea to become comfortable doing arithmetic with numbers however you find them: integers, fractions, mixed numbers, decimals, percents, scientific notation.

A decent calculator can help, if you need it. Modern graphing calculators are fully capable of working with mixed numbers, fractions, percents, and scientific notation. Any spreadsheet can do this, too.

There are very good inexpensive or free apps for phone and tablet that provide all the capability of a good graphing calculator.

In short form we can write the word Cubicle as a word, Cube. However, both the words can be used for different purposes or having different interpretation.

Given, a word Cubicle

we have to write the given word in short form.

now to write any word in short form, we have to make its length or abbreviate the word.

As, the word is Cubicle.

Then, the word Cubicle can be written in as Cube in short form.

However, both the words can be used for different purposes or having different interpretation. Such as, Cube is used for a Particular shape or figure in Geometry i.e. the 3-D shape of the cube. Whereas, Cubicle is used for the small small cabins of the employees in the corporate offices.

Hence, the word Cubicle can be written in as Cube in short form, but may be with different meaning.

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The correct answer will be, An observational study of dog owners logged into the Channel 4 website

What is Sampling?

If the data are distributed normally, a z test can be used to determine whether the means of two populations are different from one another. This calls for the determination of the value of the z test statistic, along with the setups of the null hypothesis and alternative hypothesis. The decision-making standard is based on the z critical value for Sampling . The z critical value used during hypothesis testing divides the distribution graph into acceptance and rejection zones. The test statistic must fall inside the rejection region in order for the null hypothesis to be rejected; otherwise, it cannot.

a recent article posted to the journal of nutritional science surveyed dog owners to ask about their dog walking habits in order to find out whether the dogs were getting enough exercise.

Using a sample and normally distributed data in this case

Hence, we can say An observational study of dog owners logged into the Channel 4 website

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William must make 1806 copies before his total cost is less than the photocopy store.

Let William made x copies from his home photocopier.

Now total cost of x copies = 0.12 x + 162.5

Total cost of x copies from the store = 0.21 x

Now his cost needs to be lower, so we form an inequality to solve this problem.

0.12x + 162.5 < 0.21x

or, 0.12x - 0.21x < -162.5

or, -0.09x < -162.5

or, x > 1805.56

Hence the minimum value of x will be 1806.

Therefore we can say that he needs to make at least 1806 copies.

The two sides of a mathematical equation having an inequality must be equal. In inequality, we compare several values in contrast to equations. The equal sign can be substituted with the less than (or less than as well as equal to), larger above (or greater to), or is not equal to signs.

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The tip of the shadow is moving at  [tex]4.8\frac{ft}{sec}[/tex]

Consider the image , as depicted below

Based on similar triangle , we have

[tex]\frac{s(t)}{6} =\frac{s(t)+w(t)}{16}[/tex]

⇒ 10s(t) = 6w(t)

⇒ w(t) = [tex]\frac{10}{6} s(t)[/tex]

we are told that a certain time t,

[tex]\frac{d(w(t))}{dt} = 8\frac{ft}{sec}[/tex]

[tex]\frac{d(w(t))}{dt} = \frac{d(\frac{10}{6}.s(t)) }{dt}[/tex]

          [tex]= \frac{10}{6}\frac{d(s(t))}{dt}[/tex]

Therefore,

[tex]\frac{10}{6} \frac{d(s(t))}{dt} = 8\frac{ft}{sec}[/tex]

[tex]\frac{d(s(t))}{dt} = 4.8\frac{ft}{sec}[/tex]

Hence, The tip of the shadow is moving at  [tex]4.8\frac{ft}{sec}[/tex]

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Answer:

point-slope form, standard form, and slope-intercept form

Step-by-step explanation:

The three main types of linear functions are: point-slope form, standard form, and slope-intercept form.

Here is an image with each form

The null hypothesis we get H₀: P≥ 77% and H₁: P< 77% when According to a study on a marriage counselling course, 77% of couples can avoid divorce.

Given that,

According to a study on a marriage counselling course, 77% of couples can avoid divorce with the help of a communication programme. Suppose we do a hypothesis test because we have good reason to assume the proportion is lower than 77%.

We have to describe the alternative hypothesis H₁ and the null hypothesis H₀ that we would employ in this test.

We know that,

According to the task we can say that,

From the definition we can say,

H₀: P≥ 77%

H₁: P< 77%

Therefore, the null hypothesis we get H₀: P≥ 77% and H₁: P< 77% when According to a study on a marriage counselling course, 77% of couples can avoid divorce.

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Answer:

Step-by-step explanation:

The correct option is “C” protesters were driven out by force.

This is after President Hoover ordered an army regiment into the city to quash their protests.  Under the leadership of General Douglas MacArthur, the army, rolled into Anacostia Flats forcing the Bonus Army to flee

Answer:

576

Step-by-step explanation:

48 {[2 x (1 + 3)] + 4}​

48 ((2x4)+4)

48(8+4)

48 x 12

= 576

Answer:

I know 3

substitution and elimation method and graphing (sorry i was never taught a fourth method ):

hopes this helps please mark brainliest

The shopping times were recorded for 64 randomly selected customers from a local supermarket. The average and variance of the 64 shopping times were 33 minutes and 256, respectively.

Estimate the true average shopping time per customer, with a confidence coefficient of 1- = 0.90.

x-bar = 33 min

ME = 1.645 = 3.29

90% CI: 33-3.29 < u < 33+3.29

Population Means – You can use this calculator to find the confidence interval for your sample mean if you are estimating the mean of a population trait (e.g., the mean blood pressure of a group of patients).

The estimate is your "best guess" at the unknown mean, and the confidence interval displays how reliable the estimate is. You may determine a range of values within which the population mean is expected to fall using the confidence interval.

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The 90% confidence interval is ( 992.053088, 1119.946912 ).

Mean is defined as the average of given numbers i.e. sum of all numbers divided by the total number of numbers. The Mean is denoted as m or μ. Standard deviation is the measure which it shows the variation from the mean exists or not. The standard deviation is denoted as σ. The subset chosen from the larger set to make assumptions is known as a random sample. A range of values is a confidence interval.

As per the question,

⇒  degree of freedom ( df )   =   n - 1

                                                =   64 - 1

                                        df   =   63

⇒ α   =   0.05

⇒ t    =   1.998341 ( Calculated using excel functions )

At 90% confidence, the confidence interval is

( μ - t ) ( s / √n )  ≤  x  ≤  ( μ + t ) ( s / √n )

( 33 - 1.998341 ) ( 256 / √64 )  ≤  x  ≤  ( 33 + 1.998341 ) ( 256 / √64 )

( 31.001659 ) ( 256 / 8 )  ≤  x  ≤  ( 34.998341 ) ( 256 / 8 )

( 31.001659 ) ( 32 )  ≤  x  ≤  ( 34.998341 ) ( 32 )  

992.053088   ≤  x  ≤    1119.946912

Therefore, ( 992.053088   ≤  x  ≤    1119.946912 ) is the 90% confidence interval for the true population mean.

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Weekly change: 40

Initial investment: 450

Given that,

Tony is transferring funds to his checking account. Let y signify the overall balance of the account's funds (in dollars). Let x be the quantity Bill has been adding money for in weeks. Assume that 40x+450=y represents the equation between x and y.

Given that x is the number of weeks Bill added money, this indicates that he was depositing $40 into the account every week.

Because x denotes the number of weeks he was contributing money and x is by 40, not 450, the initial amount was 450.

Therefore, Weekly change: 40 and Initial investment: 450

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An angle GHI measures 28° degrees.

What is the angle sum property of a triangle?

The triangle's inner angles can be added up to 180°, according to the triangle's "angle sum property."

For example, in a triangle, ABC, the sum of angles A, B, and C will be 180°.

Given, ∡G = 62°

∡I = 90° and ∡ H = ?

From the angle sum property of a triangle,

∡G + ∡ H + ∡I = 180°

or, 62° + ∡ H + 90° = 180°

or, ∡ H + 152° = 180°

or, ∡ H = 180° - 152° = 28°

or, Angle GHI = 28°

Hence, the required value of Angle GHI is 28°.

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Answer:

6.39 m

Step-by-step explanation:

( for a right triangle such as this)

Sin (theta) = opp leg / hypotenuse = AB / x    

sin (54) = AB / 7.9

7.9 * sin 54 = AB = 6.39 m

Value of n for confidence interval 90% is 66.

What is confidence interval?

A confidence interval, in statistics, refers to the chance that a population parameter can fall between a collection of values for a particular proportion of times.

Main body:

Finding Sample Size for Estimating a Population Proportion:

n = [tex]\frac{z}{M}^{2} }[/tex]p(1-p)

M = is the margin of error

p = is an estimated value of the proportion

We want to construct a 90% confidence interval for  with a margin of error equal to 5%.

Because there is no estimate of the proportion given, we use p = 0.50 for a conservative estimate.

For a 90% confidence interval, z = 0.816

n = (0.816/0.05)^2 *0.5(1-0.5)

n = 266.3424*0.5*0.5

n = 66 approximately

Hence value of n = 66 .

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The length of the square is 9 inches when a rectangle with a surface area of 180 inches is created by lengthening one side of a square by 1 inches and shortening another by 2 inches.

Given that,

A rectangle with a surface area of 180 inches is created by lengthening one side of a square by 1 inches and shortening another by 2 inches.

We have to find the square's side length should be determined.

We know that,

Let us take the length of the square as x.

So,

The length of one side of a square is increased by 1 inch means

x+1

The length of other side of the square is diminished by 2 inch to form a rectangle means

2x

The area of the rectangle is length × breath.

180=(x+1)(2x)

2x²+2x-180=0

x²+x-90=0

x²+10x-9x-90=0

x(x+10)-9(x+10)=0

(x+10)(x-9)=0

We get,

x+10=0 ⇒ x=-10

x-9=0 ⇒ x=9

The length can not be negative so x=9

Therefore, The length of the square is 9 inches when a rectangle with a surface area of 180 inches is created by lengthening one side of a square by 1 inches and shortening another by 2 inches.

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The final number is a decimal number which is equal to -1805.96.

It is given to us that the set of expression is given by -

minus one thousand, eight hundred and five point nine six.

We have to write the given expression as a number.

According to the given information we see that there is a "point" word in the expression. This implies that the final number will be a decimal number.

So, from the given information, we can represent the number as -

-1805.96

Thus, the final number is a decimal number which is equal to -1805.96.

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The common multiple of 14 and 28 is 28.

Common multiple:

A common multiple is defined as a whole number, a shared multiple of each set of numbers. The multiples common to two or more numbers are called the common multiples of those numbers.

Here we have to find the common multiple of 14 and 28.

Data given:

Two numbers = 14 and 28

We can also write these numbers as:

14 = 2 × 7

28 = 2² × 7

The common multiple of these numbers is 2² × 7

Therefore the common multiple of these numbers is 28.

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The cost of the car for the year is $3800 for Nerida Kyle and it will cost less than lyft.

The cost of the car for the year will be calculated based on the amount she will spend in total on the car. The formula to be used is -

Total cost = Cost price of the car - Selling price

Cost price of car will be sum of all the expenses, calculated as follows -

Cost price of the car = 15000 + 1200 + 800 + 300

Performing addition on Right and Side of the equation

Cost price of the car = $17,300

Total cost for the year = 17,300 - 13,500

Performing subtraction on Right and Side of the equation

Total cost for the year = $3,800

Hence, Nerida Kyle will spend $3,800 on car which is better than lift.

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The correct statements for comparing the effectiveness of the SAT preparation program are the 3rd, 4th, 5th, 6th statements.

The statements in order are

Since, school counselor want to compare effectiveness of SAT preparation program with response variable will be the improvement in SAT score.

We can consider this as a improvement assessment, so that the initial abilities of each student will be different. With this we can see the improvement from student with bad initial score, and for the student that has a good score in initial exam they barely to have improvement.

For example student A have initial score 600 and student B have initial score 1300 after preparation program student A have final score 1200 and student B have final score 1350. In the example, we can see 200% improvement from student A and only 4% improvement from student B.

Also, with matching pair design that based on variable, we can see the variability in improvement making it easier to know the effectiveness of SAT preparation program than the randomized design.

Thus, the correct statements is the 3rd, 4th, 5th, 6th statements.

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According to the given statement the option B and C are correct:

b) unpaired t-test

c) one-sample t-test

We will apply an unpaired test in this situation because both populations are independent and unrelated to one another, making it impossible to pair the data from the two populations.

Consider the statement, "The mean from population A is bigger than the mean from population B," for example. This suggests that we'll utilize a single-tailed, unpaired test. Therefore, option d and b may be the best pairing.

To ascertain whether an unknown population mean differs from a given value, the one-sample t-test is a statistical hypothesis test.

The t-value is calculated using your sample data from the two groups and the 2-sample t-test. The procedure is quite comparable to the 1-sample t-test, and the signal-to-noise ratio can still be compared. The 2-sample t-test necessitates independent groups for every sample, unlike the paired t-test.

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The complete question you are looking for is:

In order to test if the mean from Population A is greater than the mean from Population B what kind of t-test would you use? (can be any combination of answers)

a) two-tailed t-test

b) unpaired t-test

c) one-sample t-test

d) one-tailed t-test

e) paired t-test

The value of x and y is 19 and 132.

What is equation?

There are many different ways to define an equation. The definition of an equation in algebra is a mathematical statement that demonstrates the equality of two mathematical expressions. For instance, the equation 3x + 5 = 14 consists of the two expressions 3x + 5 and 14, which are separated by the 'equal' sign. Mathematical algebraic equations typically have one or more variables. More than one variable may be present in a linear equation. An equation is said to be linear if the highest power of a variable is consistently 1. Another name for it is a one-degree equation.

Sol- as per the given question y= 8x -20

We have to add the equations

(2x+10)° + (8x-20)°= 180°

= (10x-10)° = 180°

= (10x)° = 190°

= X= 19

= Y = 8.19-20 = 132

Thus,

X = 19 and Y = 132.

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b1, is higher when: I. there is a lot of scatter around the regression line.

I is higher. The more scatter around the regression line, the higher the uncertainty associated with the slope estimate, b1. If there is a lot of scatter, the estimated slope is less reliable than if there is very little scatter.

The uncertainty associated with the slope estimate, b1, is higher when there is a lot of scatter around the regression line. This is because the estimate of the slope is based on the data points, and when there is a lot of scatter, the data points are more spread out and the estimate of the slope is less reliable.

In regression analysis, the scatter of data points around the regression line is important in determining the uncertainty of the slope estimate. When there is a lot of scatter, the data points are more spread out and the estimate of the slope is less reliable. This is because the estimate of the slope is based on the data points, and when there is more scatter, the data points are more spread out and the estimate of the slope is less reliable.

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Two angles are considered to be congruent if their measures match. You are already aware that the vertical angles created when two lines connect are congruent.

A = B if A and B are both complements of C. We should investigate additional angle correlations. When you reveal these angle correlations, you will formally prove their veracity. For instance, you were given the concept of an angle bisector. It turns out that an angle's bisector separates it into two angles, each of which has a measure equal to half that of the original angle.Two angles are considered to be congruent if their measures match. You are already aware that the vertical angles created when two lines connect are congruent.

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The two third can be written as 2/3 which in decimal means 0.6667 and when expressed as a percentage it is 66.67%

A fraction is a part of a whole. In arithmetic, the number is expressed as a quotient, in which the numerator is divided by the denominator.

The two third can be written as 2/3. It basically means 2 parts of 3 total parts.  Here the numerator is 2 and demominator is 3.

It can be written in decimal as 2/3 = 0.666

This is an irrational fraction when converetd into decimal system, it becomes a recurring decimal.

The equivalent fraction of 2/3 is 4/6 or 20/30 etc

Therefore, The two third can be written as 2/3 which in decimal means 0.6667 and when expressed as a percentage it is 66.67%

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Probability model for this chance process is:

P(X=2) =  [tex]6_C_2*(1/6)^2*(1-1/6)6-2[/tex]

Given:

Mr. Starnes and his wife have 6 grandchildren: Connor, Declan, Lucas, Piper, Sedona, and Zayne. They have 2 extra tickets to a holiday show, and will randomly select which 2 grandkids get to see the show with them.

Using binomial distribution:

We are given that there are 6 grand children and 2 of them are needed to picked.

Let number of grandchildren to be choose is X.

Every children has equal chance to get selected, therefore Probability for everyone is 1/6.

P(X) = Bino(6,1/6)

P(X) = [tex]6_C_X*(1/6)^X*(1-1/6)^{6-X}[/tex]
P(X=2) =  [tex]6_C_2*(1/6)^2*(1-1/6)^{6-2[/tex]

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If andre lives with his wife and three children. 22 pounds of municipal solid waste his family generates each day.

It is defined as the ratio of the population to the total area. The population density represents the average number of people living in each square unit.

It is given that and lives with his wife and three children.

We have to find the mass of municipal solid waste Andre and his family generate each day.

From the data research 22 pounds of municipal solid waste, his family generates each day.

Thus, if Andre lives with his wife and three children. 22 pounds of municipal solid waste his family generates each day.

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