Hi, Could you please show and explain the methods for
calculating Mean, Median and Mode?

Answer:

6(n − 5) < 3(n + 4)

6n - 30 < 3n + 12 // Distribute the 6 and 3

3n < 42 // Add 30 to both sides

n < 14 // Divide both sides by 3

So the inequality is true for n < 14. This means that the only integer in the set S that satisfies the inequality is 11. Therefore, the solution is S:{11}.

The Wald Interval: Wald intervals can be used to obtain interval estimates for a parameter such as an odds ratio. Wald intervals can be used for normally distributed data, and for large samples, they can be used for binary data. Wald intervals are used to calculate confidence intervals.Using the Wald interval, the odds ratio and its 95% confidence interval are given by the formula  which is as follows:OR=Odds ratioZ_α/2=Z-value of a normal distribution at a level α/2 of significance SE=Standard errorOR=1.0599, Z_α/2=1.96, and SE=0.5704 can be obtained from the data in the table. Odds ratio (OR) is the ratio of the odds of an outcome in the treatment group compared to the odds of that outcome in the control group. The odds ratio indicates the likelihood of the outcome occurring in one group compared to the likelihood of it occurring in the other. In this case, OR=1.0599.Profile Likelihood: Profile likelihood is an approach that can be used to construct a confidence interval. The profile likelihood is a way of eliminating nuisance parameters, which are parameters that are not of direct interest but are necessary for calculating the parameter of interest. A confidence interval for the parameter of interest can be calculated using the profile likelihood.The odds ratio and its 95% confidence interval can be obtained using the profile likelihood.The odds ratio (OR) is given by the formulaOR=exp[θ], where θ is the natural logarithm of the odds ratio. In this case, OR=1.0599.The 95% confidence interval is obtained by finding the values of θ that correspond to the 2.5th and 97.5th percentiles of the distribution of the profile likelihood ratio test statistic. The profile likelihood ratio test statistic is defined as twice the difference in the log-likelihoods between the model with the parameter of interest fixed at its maximum likelihood estimate and the model with the parameter of interest estimated.The effect of the zero cell count on the confidence interval is that it makes the interval wider. When a cell count is zero, the odds ratio cannot be calculated, which can lead to a larger standard error and a wider confidence interval.

Natural numbers are squared to get the succession of square numbers. These sequence's initial terms  includes 1, 4, 9,16, 25, so on and so forth.

We must square the fifth natural integer, which is five, in order to determine the fifth term in this series. As a result, 25 is the fifth term in the square number series.

In a more general sense, n2 represents the nth phrase in the series of square numbers. This is so that the nth term, which is n, equals the rectangle of the nth arbitrary integer.

Tn = n2 is the formulae for the nth term. The chain of square integers is a direct example of the more generic order of degrees.

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Aldo should choose Company A if he plans to drive more than 45 miles, and Company B if he plans to drive 45 miles or fewer.

Let's start by setting up an inequality to represent the mileage for which Company A charges less than Company B:

Cost of Company A < Cost of Company B

The cost of Company A is a constant $101, regardless of how many miles are driven. The cost of Company B, on the other hand, depends on the number of miles driven. If m represents the number of miles driven, then the cost of Company B can be expressed as:

Cost of Company B = $65 + $0.80m

Now we can substitute these expressions into the inequality we set up earlier:

$101 < $65 + $0.80m

Simplifying and solving for m:

$36 < $0.80m

$45 < m

Therefore, Company A will charge less than Company B for mileage greater than $45.

To summarize, Aldo should choose Company A if he plans to drive more than 45 miles, and Company B if he plans to drive 45 miles or fewer.

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The actual interest rate for this loan is 20.26%.

The actual interest rate for this loan can be calculated using the formula for annual percentage rate (APR). Since the loan will be paid off in four weeks, which is equivalent to 28 days, the APR can be calculated as follows:

[tex]APR = ((Fee / Loan Amount) * (365 / Time Period)) * 100[/tex]

[tex]= (($40 / $530) * (365 / 28)) * 100[/tex]

= 20.26%

Therefore, the actual interest rate for this loan is 20.26%.

The APR is the annual rate charged for borrowing money, expressed as a percentage of the loan amount. In this case, the loan amount is $530, and the fee charged by the tax preparer is $40. The time period for the loan is 28 days, which is the time it takes for the refund check to arrive. Since the loan is being paid off with the refund check, it is a no-interest loan. However, the fee charged by the tax preparer effectively increases the cost of the loan, resulting in an actual interest rate of 20.26%. This means that the borrower is effectively paying 20.26% in interest for the loan over the course of a year.

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based on the line of best fit, we would predict that the day's high temperature would be approximately 34.29 degrees Fahrenheit or 1.272°C if Genesis sold 28 hot cocoas

The term "temperature" describes how hot or cold a body is. It is, specifically, a method of calculating the kinetic energy of the particles that make up an item. When particles move more quickly, the temperature rises, and vice versa.

Nearly every aspect of our daily lives and all scientific fields, from physics to geology, are significantly influenced by temperature.

The velocity of these particles likewise increases as the temperature rises.

A thermometer or a calorimeter is used to determine the temperature. In other words, a system's internal energy is determined by its temperature.

from the question...

We may infer from the scatter plot and the line of best fit that the line's equation is y = -0.7x + 52, where y stands for the volume of hot cocoa sold and x for the high temperature of the day in degrees Fahrenheit.

If Genesis sold 28 hot cocoas, we can solve for x and substitute y = 28 into the equation to determine the day's high temperature:

28 = -0.7x + 52

-0.7x = 28 - 52

-0.7x = -24

x = 34.29

So, if Genesis sold 28 hot cocoas, we would forecast that the day's high temperature would be roughly 34.29 degrees Fahrenheit based on the line of best fit.

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complete question:

You need to deposit $13 into a account to have amount $5000 in 2 years.

Compound interest is the interest on savings calculated on both the initial principal and the accumulated interest from previous periods.

The formula used to find the compound interest = [tex]A=P(1+\frac{r}{100})^{nt}[/tex].

Given that, Amount =$5000, rate of interest =5.89% and time period = 2 year = 104 weeks.

Now, 5000=P(1+5.89/100)¹⁰⁴

5000=P(1+0.0589)¹⁰⁴

5000=P(1.0589)¹⁰⁴

5000=384.5P

P=5000/384.5

P=$13

Therefore, you need to deposit $13 into a account to have amount $5000 in 2 years.

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The correct statement regarding whether there are two parallel lines is given as follows:

C. Yes, lines n and p are parallel because corresponding angles are congruent.

When two parallel lines are cut by a transversal, corresponding angles are pairs of angles that are in the same position relative to the two parallel lines and the transversal. Corresponding angles are always congruent, which means that they have the same measure.

The angles in the same position for this problem are given as follows:

1 and 2.

The parallel lines relative to which these two angles are at the same position are given as follows:

n and p.

Hence the correct option is given by option c.

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Answer:

  BD = 5√3

  AD = 10

  CD = 10√3

Step-by-step explanation:

You want the missing side lengths in a right-triangle geometry that shows the hypotenuse divided into lengths 5 and 15 by the altitude.

In this geometry, all of the right triangles are similar. The similarity proportions can be solved to give three geometric mean relationships:

  BD = √(AB·CB) = √(5·15) = 5√3

  AD = √(AB·AC) = √(5·20) = 10

  CD = √(CB·CA) = √(15·20) = 10√3

__

Additional comment

It can be handy to remember the geometric mean relations. They can be thought of as "each side is equal to the geometric mean of the hypotenuse segments it touches." (Note that touching the end is interpreted as touching the nearest part and the whole.)

For example, the similarity proportion for AD is ...

  hypotenuse/(short side)

  AD/AB = AC/AD   ⇒    AD² = AB·AC   ⇒   AD = √(AB·AC)

These are called "geometric mean" relations because the geometric mean of two numbers is the square root of their product.

The exponential distribution may be used to predict the failure rate of certain items over time. An LED light bulb has an expected lifetime of 25000 hours. Assuming that the lifetime of the LED light bulb follows the exponential distribution, the probability that it will last more than 3 years is closest to (C) 53%. Correct answer is option C

This is because the lifetime of an LED light bulb can be estimated using the following equation : P(x > 3 years) = 1 - P(x ≤ 3 years)where x is the lifetime of the LED light bulb.If we convert 3 years to hours, we get 3 * 365 * 24 = 26280 hours. As a result, P(x ≤ 3 years) = P(x ≤ 26280 hours)

Using the formula for exponential distribution, the probability of the LED light bulb failing after 26280 hours is : Probability = 1 - e^{-λx} Where λ is the failure rate per hour and x is the length of time in hours.We can now calculate the value of λ by dividing the expected lifetime of the bulb by the total number of hours.

 λ = 1/25000 hours  This implies that the probability of the LED light bulb failing after 26280 hours is : P (x ≤ 26280 hours)

Therefore, the probability that the LED light bulb will last more than 3 years is approximately 53 percent. The Correct answer is option C

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Answer: 200

Step-by-step explanation:

40% of y = 100

40/100 of y = 100

40y/100 = 100

40y = 100 multiplied by 100

40y/40 = 10000

y = 250.

40% of 2 multiplied by 250

40/100 of 500

40 multiplied by 5

answer = 200.

The value of x is 6.25, or 20 when rounded to the nearest whole number. The correct answer is c.

To find the value of x, we need to use the formula for percentage change, which is:

Percentage change = (Final value - Initial value) / Initial value * 100

Let's say the initial number of employees is E and the initial wages per head is W. The initial total wages would be E * W.

After the increase in employees and decrease in wages, the final number of employees would be E * 1.25 and the final wages per head would be W * 0.75. The final total wages would be E * 1.25 * W * 0.75.

Now we can plug in these values into the formula for percentage change:

Percentage change = (E * 1.25 * W * 0.75 - E * W) / (E * W) * 100

Simplifying the equation, we get:

Percentage change = (0.9375 - 1) / 1 * 100

Percentage change = -0.0625 * 100

Percentage change = -6.25

This means that there is a 6.25% decrease in total wages. However, the question asks for the value of x, which represents the percentage decrease in total wages. Therefore, the value of x is 6.25, or 20 when rounded to the nearest whole number.

So, The correct answer is c. 20.

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The answer tο the pοsed questiοn using equatiοns is that hence, it will take 500 bacteria apprοximately 9.7 days frοm the day Sandy put her sandwich in her lοcker tο thοrοughly cοver it.

The equals sign (=) denοtes equality when twο statements are jοined by a mathematical equatiοn. A mathematical statement that establishes the equality οf twο mathematical expressiοns is knοwn as an equatiοn in algebra. Fοr instance, in the equatiοn 3x + 5 = 14, the equal sign divides the numbers. A mathematical fοrmula can be used tο identify the link between the twο sentences οn either side οf a letter.

The expοnential equatiοn fοr this prοblem is as fοllοws:

[tex]N(t) = e(kt) \times N_0 (kt)[/tex]

The data mentiοned above can be used to calculate the values of [tex]N_0[/tex] and k:

=>[tex]N (4) = \frac{71}{sN(7)} = 185[/tex]

These numbers are entered intο the formula as follows:

[tex]71 = N_0\times e^{(4k) (4k) (4k)}\\185 = N_0 \times e^{(7k) (7k) (7k)}\\185/71 = e^{(3k) (3k) (3k)}[/tex]

Hence, the equation for this prοblem is:

[tex]N(t) = 23.77 \times e^ {(0.3056t) (0.3056t) (0.3056t)}[/tex]

To determine hοw many days, it will take for 500 germs to prοliferate, we can set N(t) equal to 500 and solve for t:

[tex]500 = 23.77 \times e^ {(0.3056t) (0.3056t) (0.3056t)}[/tex]

Based οn t = ln (500/23.77) / 0.3056, 9.7 days.

Hence, it will take 500 bacteria rοughly 9.7 days from the day Sandy put her sandwich in her lοcker to thoroughly cοver it.

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The domain of f cannot include any values of x that make the equation x^(2)-4x-12=0 true. This is because if x satisfies this equation, then the denominator of the function f(x) will be zero, which is not allowed in a function's domain.

To find the values of x that satisfy this equation, you factored it to get (x+2)(x-6)=0. Now you can use the Zero Product Property to find the values of x that make each factor equal to zero.

For the first factor, x+2=0, we can solve for x by subtracting 2 from both sides to get x=-2. For the second factor, x-6=0, we can solve for x by adding 6 to both sides to get x=6.

So the values of x that satisfy the equation and are not included in the domain of f are x=-2 and x=6.

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As per the given angle the value of x makes MRNW a kite is 6.66 degrees

Now, let's use the information given to us to find the value of x that makes MRNW a kite. We know that the angle ∠RMN is 5x - 15, and we know that the angle ∠R is 11x + 45. Since MR and RN are equal in length, we know that ∠RMN and ∠R are adjacent angles in a straight line. This means that their sum is equal to 180 degrees.

So, we can write an equation:

(5x - 15) + (11x + 45) = 180

Simplifying this equation, we get:

16x + 30 = 180

Subtracting 30 from both sides, we get:

16x = 150

Dividing both sides by 16, we get:

x = 9.375

To do this, we need to find the values of the other two angles in the kite. We know that the angle ∠WNM is 10y + 30, and we know that the angle ∠W is 8y.

So, we can write another equation:

(10y + 30) + (8y) = 180

Simplifying this equation, we get:

18y + 30 = 180

Subtracting 30 from both sides, we get:

18y = 150

Dividing both sides by 18, we get:

y = 8.333

Now, we need to check if these values of x and y make MRNW a kite. We can calculate the angles ∠M and ∠N using the information we have:

∠M = 180 - ∠RMN - ∠R

∠M = 180 - (5x - 15) - (11x + 45)

∠M = 150 - 16x

∠M = 7.5 degrees

∠N = 180 - ∠WNM - ∠W

∠N = 180 - (10y + 30) - (8y)

∠N = 142 - 18y

∠N = 6.666 degrees

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Complete Question;

Use the given figure to answer questions 4-6. MRNW is a kite. ∠RMN = 5x - 15, ∠R = 11x + 45, ∠WNM = 10y + 30, and ∠W = 8y. 4. What value of x makes MRNW a kite?

The measures of EF and EC in the rhombus is as follows:

EC = 8√33 and EF = 4√33.

Given that it meets the criteria for a parallelogram—a quadrilateral with two sets of parallel sides—a rhombus can be described as a special parallelogram. A rhombus also has four equal sides, much like a square, which is another feature. For this reason, it is often referred to as a tilted square.

We know that diagonals bisect each other perpendicularly, from the right triangle FED,

we have that:

x² + 16² = 28²

⇒ x² = 784-256

⇒ x = 4√33

Therefore, EF = x = 4√33

Since EC is twice EF, then, EC = 2 × 4√33

= 8√33

Therefore, EC = 8√33 and EF = 4√33.

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The complete question is:

If the quadrilateral below is a rhombus, find the missing measures. BC=28 BD=32

Find Ef and EC

From the given sequence we can observe that, each term is obtained by dividing the previous term by 3.

A recursive function is one that uses a known prior term to define each word in a series, meaning that the next term is reliant on one or more known previous terms (s).

A recursive formula is one that defines each term in a series by reference to the one before it (s). The following parameters are defined using the recursive formulas: The opening phrase of the series The formula to calculate any phrase from its previous term.

Also, the first term is 18.

Thus, the recursive formula is given as:

aₙ = aₙ₋₁ ÷ 3

Now, the nth term is obtained by using the nth term formula:

a = 18 ÷ 3 ⁽ⁿ⁻¹⁾

Hence, the recursive formula is aₙ = aₙ₋₁ ÷ 3 and the nth term of the sequence is a = 18 ÷ 3 ⁽ⁿ⁻¹⁾.

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Answer:

Step-by-step explanation:

The quadratic formula = (- b ± √b² - 4ac) / 2a

Plug in values:

((4) ± √(-4)² - 4(-5)(2)) / 2(-5)

Simplify:

((4) ± √(-4)² - 4(-10)) / 2(-5)

((4) ± √16 + 40) / 2(-5)

((4) ± √56) / -10

x = -2/5 ± (-1/10)√56

x ≈ -1.1483 and 0.3483

Hope this helps!

The good estimate of the mean for the given data is 31.40.

A stem-and-leaf diagram is a quantitative assessment of a collection of data in which the data values are divided into a "stem" (the first digit of the number) and a "leaf" (the remainder of the number) (the last digit of the number).

To estimate the mean of the data, we can use the stem-and-leaf plot and the given test scores:

Stem Leaves

6 0, 6, 8, 8, 6, 6, 7, 7, 8, 8, 9

7 0, 0

8 0, 6, 8

9 0

To calculate the mean, we add up all the values and divide by the total number of values:

(6 + 6 + 6 + 7 + 7 + 8 + 8 + 8 + 8 + 9 + 60 + 68 + 80 + 90 + 100)/15

Simplifying, we get:

mean = 471/15

mean = 31.40 (rounded to two decimal places)

Therefore, a good estimate of the mean for the given data is 31.40.

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The distance from the sun to the planet whose orbit time is 1.88 years is approximately 175 million miles.

We are given the equation y = 92.8935x, where y represents the distance from the sun to a planet in millions of miles and x represents the time taken by the planet to complete one orbit in Earth years.

To find the distance from the sun to the planet whose orbit time is 1.88 years, we can substitute x = 1.88 in the equation and solve for y:

y = 92.8935(1.88)

y ≈ 175

As a result, the planet's orbital period of 1.88 years places it roughly 175 million miles from the sun.

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Subtracted the polynomials of (2.62a⁴-0.029a³+1.65)-(0.97a⁴-0.081a³+0.54a²) is  1.65a⁴ + 0.052a³ - 0.54a² + 1.65

To subtract the polynomials, we need to subtract the corresponding terms of each polynomial. This means we need to subtract the coefficients of each term with the same degree.

So, we have:
(2.62a⁴ - 0.97a⁴) + (-0.029a³ - (-0.081a³)) + (0 - 0.54a²) + (1.65 - 0)

Simplifying each term gives us:
1.65a⁴ + 0.052a³ - 0.54a²+ 1.65

So, the final answer is:
1.65a⁴ + 0.052a³ - 0.54a² + 1.65

This is the simplified form of the difference between the two polynomials.

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The expected lifetime reproductive value for an individual in a population with an intrinsic rate of increase (r) of 0 is 1, the correct option is A.

The calculation for the expected lifetime reproductive value can be expressed as:

R₀ = ∑ lxmx

In a stable population with an intrinsic rate of increase of 0, the survival probability (lx) is constant across all age classes, and the average number of offspring produced by an individual (mx) is also constant.

R₀ = lxm

where l is the survival probability and m is the average number of offspring per individual.

Since the population is stable, each individual replaces itself with one offspring, so m = 1.

Therefore, the calculation for the expected lifetime reproductive value in a population with an intrinsic rate of increase of 0 is:

R₀ = lxm = 1 x 1 = 1, the correct option is A.

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Answer:

The answer is c 180 miles

Step-by-step explanation:

the exact is 179.8 miles rounded up is 180 mark brainliest pls and your welcome

We have that, given the equation x^(2)+(144)/(1369)(144)/(1369)=13 , we will have as a solution x = 485/1369

To isolate the variable term and simplify the right, we need to follow the steps below:

Step 1: Subtract the fraction term from both sides of the equation.

[tex]x^2+(144/1369)(144/1369) - (144/1369)(144/1369) = 13 - (144/1369)(144/1369)[/tex]

Step 2: Simplify the right side of the equation by multiplying the fractions and then subtracting from 13.

[tex]x^2 = 13 - (20736/1874161)[/tex]

Step 3: Combine the terms on the right side of the equation by finding a common denominator and subtracting.

[tex]x^2 = (24320661/1874161) - (20736/1874161)[/tex]

Step 4: Simplify the right side of the equation by subtracting the numerators and keeping the common denominator.

[tex]x^2 = (24320661 - 20736)/1874161[/tex]

Step 5: Simplify the fraction on the right side of the equation by reducing to lowest terms.

[tex]x^2 = (24300025/1874161)[/tex]

Step 6: Take the square root of both sides of the equation to isolate the variable term.

[tex]x = \sqrt{(24300025/1874161)}[/tex]

Step 7: Simplify the square root by factoring out any perfect squares.

[tex]x = \sqrt{(485^2)/(1369)}[/tex]

Step 8: Simplify the square root by taking the square root of the perfect squares.

[tex]x = 485/1369[/tex]

Therefore, the solution to the equation is [tex]x = 485/1369[/tex].

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Answer: Emily must save $60 per week.

Step-by-step explanation:

$850- $250= $600

$600/ 10= $60

Not sure where the x plays into this, but I hope this helped!

To figure out how much Emily needs to save each week in order to buy the iPhone 7 in 10 weeks, we must first figure out the amount that money she still requires to save.

The iPhone 7 costs $850, and Emily has indeed saved $250. As a result, she must proceed to save: $850 - $250 = $600 Now we need to start figuring out the amount that Emily needs to save every week in order to reach her $600 goal in 10 weeks.

To do so, simply divide amount she requires to save it by the amount of weeks she has: $600 ÷ 10 weeks = $60/week So Emily requires to save $60 a week for the next ten weeks in order to afford the iPhone 7.

To sum up, Emily must save $600 in total in order to buy the iPhone 7, and she's got 10 weeks to do so. To reach her goal, she must save $60 per week for ten weeks ($600).

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Step-by-step explanation:

such questions you can answer faster by either directly looking it up on the internet (1 pound = ... ounces), or by using the conversion or scale function on your calculator (e.g. the Windows basic calculator app has this function).

so, we find :

1 pound = 16 ounces

so, now it is easy to find how many pounds of apples were bought : every "group" of 16 ounces is 1 pound. so, we need to find how many such "groups" are in 40.

40/16 = 5/2 = 2.5 pounds.

The difference quotient for the function f(x) = - 3x²- 7x + a + 2 is -6x - 3h.

To simplify the difference quotient, we first need to compute f(x+h) and f(x):

f(x+h) = -3(x+h)² - 7(x+h) + a + 2

= -3x² - 6hx - 3h² - 7x - 7h + a + 2

f(x) = -3x² - 7x + a + 2

Now, we can plug these values into the difference quotient:

f(x+h) - f(x)

= (-3x²- 6hx - 3h² - 7x - 7h + a + 2) - (-3x² - 7x + a + 2)

= -3x² - 6hx - 3h² - 7x - 7h + a + 2 + 3x² + 7x - a - 2

= -6hx - 3h^2

Finally, we divide by h and simplify:

[f(x+h) - f(x)]/h = (-6hx - 3h²)/h

= -6x - 3h

Thus, the simplified difference quotient is -6x - 3h.

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Answer: 2,640 yards

Step-by-step explanation:

2,640 yards. Two and three-fourths miles is equal to 14,400 yards. 14,400 yards divided by 5, which is the number of yards in a mile, is equal to 2,640 yards.

Answer: 4,840 yards

Step-by-step explanation:

Answer:

It takes 7 months

Step-by-step explanation:

The point (7,8) is located at the intersection of the vertical line x=7 and the horizontal line y=8.

The equation x-7=0 can be solved to find the value of x. To do this, we can add 7 to both sides of the equation to isolate the variable on one side of the equation. This gives us: x-7+7=0+7 or x=7. Now that we know the value of x, we can plot the point on the line with the y-coordinate y=8. To do this, we can start at the origin (0,0) and move 7 units to the right along the x-axis to the point (7,0). Then, we can move 8 units up along the y-axis to the point (7,8). This is the point that corresponds to the equation x-7=0 with the y-coordinate y=8. The plot of this point is shown below:



As shown in the plot above, the point (7,8) is located at the intersection of the vertical line x=7 and the horizontal line y=8.

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