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The functions 7 are inverse functions while the functions 8 are not inverse functions

To verify that f and g are inverse functions, we need to show that:

Let's apply these conditions to the given functions:

f(x) = 5x + 2; g(x) = (x−2)/5

f(g(x)) = f((x−2)/5) = 5((x−2)/5) + 2 = x − 2 + 2 = x

g(f(x)) = g(5x + 2) = ((5x + 2) − 2)/5 = 5x/5 = x

Since f(g(x)) = x and g(f(x)) = x, we can conclude that f and g are inverse functions.

f(x) = ½x − 7; g(x) = 2x + 14

f(g(x)) = f(2x + 14) = ½(2x + 14) − 7 = x

g(f(x)) = g(½x − 7) = 2(½x − 7) + 14 = x − 7 + 14 = x + 7

Since f(g(x)) = x and g(f(x)) ≠ x, we can conclude that f and g are not inverse functions.

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Answer: the same

Step-by-step explanation:

because it says they practice as many hours as you do

a) Positive correlation, b) No correlation, c) Negative correlation

a) Positive correlation - as the hours of lacrosse practice increase, the number of goals scored in a lacrosse game is likely to increase as well.

b) No correlation - there is no obvious relationship between a student's average marks and the number of siblings in their family.

c) Negative correlation - as the distance from a student's home to their school increases, the time they spend on the school bus each day is likely to decrease.

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The greatest number of songs downloaded is 10."

"What is the greatest number of songs downloaded?" is:

A dot plot is a graphical representation of data using dots. In this case, the dot plot shows the number of songs Carly downloaded over 15 successive weekends. Each dot represents the number of songs downloaded during a particular weekend

To find the greatest number of songs downloaded, we need to identify the highest point on the dot plot. This can be done by visually examining the dot plot and looking for the highest dot.

Once we identify the highest dot, we can see the number of songs downloaded during that particular weekend, which is the greatest number of songs downloaded over the 15 successive weekends.

if the highest dot on the dot plot represents 10 songs downloaded, then the answer to the question would be "The greatest number of songs downloaded is 10."

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The total length of all 10 ribbons is 35 inches when they are placed end to end.

Inches are a unit of length in the imperial system of measurement, which is primarily used in the United States, the United Kingdom, and some other countries. One inch is equal to 1/12 of a foot or 2.54 centimeters.

The inch is commonly used to measure the length or distance of small objects, such as the size of a computer screen, the length of a pencil, or the height of a person. Inches are also used to measure the dimensions of larger objects, such as the width of a door or the size of a piece of furniture.

If John has 10 ribbons, each measuring 3 ½ inches long, we can find the total length of all the ribbons by multiplying the length of one ribbon by the number of ribbons:

Total length = 10 × 3 ½ inches

To multiply a whole number and a mixed number, we can first convert the mixed number to an improper fraction, then multiply:

Total length = 10 × (7/2) inches

Total length = 35 inches

Therefore, the 10 ribbons, placed end to end, would be 35 inches long.

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Determine the recommended range of water consumption17.7 ≤ x ≤ 37.6

A.54 ≤ 1.41x + 29 ≤ 82; To stay within the range, the water usage should be between 17.7 and 37.6 HCF.

Scenario is that the water utility charges a fee of $29, plus an additional $1.41 per hundred cubic feet (HCF) of water, and the recommended monthly bill for a household is between $54 and $82.

Range of water usage in HCF (x) that fits this recommendation.
First, write the compound inequality to represent the scenario:
54 ≤ 1.41x + 29 ≤ 82
Now, to find the recommended range of water consumption, we need to isolate x in both inequalities.

Start with the left inequality:
54 ≤ 1.41x + 29
Subtract 29 from both sides:
25 ≤ 1.41x
Divide both sides by 1.41:
25 / 1.41 ≤ x
x ≥ 17.7 (rounded to one decimal place)
Next, consider the right inequality:
1.41x + 29 ≤ 82
Subtract 29 from both sides:
1.41x ≤ 53
Divide both sides by 1.41:
x ≤ 53 / 1.41
x ≤ 37.6 (rounded to one decimal place)
Combine both inequalities:

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Answer:

$525

Step-by-step explanation:

Jackie starts with $500, and the interest rate is 5% per year.

This means that, after one year, Jackie will have accumulated 5% interest with the $500 she put into the savings account.

Now, we can find 5% of $500 by converting 5% to its fraction form, which is 5/100. 5% of a value means that you need to multiply the fraction (or decimal) by the said value. So, we have:

[tex]\frac{5}{100}[/tex] · 500 =

[tex]\frac{2500}{100}[/tex] =

25

Therefore, the amount of interest she has accumulated in one year is $25. Combined with the money in her savings account, she has $525, since $500 + $25 = $525.

Answer: To find the point on the line 3x + y = 8 that is closest to the point (-3,2), we need to minimize the distance between the line and the point.

Let (x, y) be the point on the line that is closest to (-3, 2). Then the vector from the point (-3, 2) to (x, y) is orthogonal (perpendicular) to the line. The direction vector of the line is <3, 1>, so the direction vector of the orthogonal vector is <-1/3, 1>.

Now we can write an equation for the line passing through (-3, 2) with the direction vector <-1/3, 1>:

(x - (-3))/(-1/3) = (y - 2)/1

Simplifying, we get:

3x + y = 11

This is the line passing through (-3, 2) that is orthogonal to the original line 3x + y = 8.

To find the intersection of these two lines, we can solve the system of equations:

3x + y = 8

3x + y = 11

Subtracting the first equation from the second, we get:

0 = 3

This is a contradiction, which means the two lines do not intersect. Therefore, the point on the line 3x + y = 8 that is closest to (-3, 2) does not exist.

However, we can still find the closest point to (-3, 2) on the line 3x + y = 8. This point will be the intersection of the line passing through (-3, 2) with the direction vector <-1/3, 1> and the line 3x + y = 8.

The equation of the line passing through (-3, 2) with the direction vector <-1/3, 1> is:

(x - (-3))/(-1/3) = (y - 2)/1

Simplifying, we get:

3x + y = 11

To find the intersection point with the line 3x + y = 8, we can solve the system of equations:

3x + y = 8

3x + y = 11

Subtracting the first equation from the second, we get:

0 = 3

This is a contradiction, which means the two lines do not intersect. Therefore, the point on the line 3x + y = 8 that is closest to (-3, 2) does not exist.

Step-by-step explanation:

The main topic is the split-half reliability test used in psychological research to assess the internal consistency of a scale.

In psychological research, reliability is a crucial aspect of measuring constructs or attributes. One commonly used method for assessing the reliability of a scale is the split-half reliability test.

In this test, the scale questions are divided into two parts equally, and the resulting scores of both parts are correlated against one another.

For example, if a scale had 20 items, the items could be randomly split into two groups of 10 items each.

Scores are then calculated for each group, and the scores are correlated with each other to determine the degree of consistency between the two halves.

The correlation coefficient obtained from this analysis provides an estimate of the internal consistency of the scale.

A high correlation coefficient indicates a high level of internal consistency, indicating that the two halves of the scale are measuring the same construct or attribute.

Conversely, a low correlation coefficient suggests that the two halves of the scale are not measuring the same construct or attribute, and the scale may need to be revised or abandoned.

Overall, the split-half reliability test provides a quick and efficient method for evaluating the reliability of a scale.

However, it is important to note that this method does have some limitations, such as the possibility of unequal difficulty or discrimination of the items in each half of the scale.

Therefore, researchers often use other methods, such as Cronbach's alpha, in conjunction with the split-half reliability test to provide a more comprehensive assessment of the reliability of a scale

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The combined amount in both accounts after 10 years is $16,869.58

To solve the problem, we need to use the following formulas:

Simple Interest = Principal x Rate x Time

Compound Interest = [tex]Principal * (1 + Rate/ n)^{n * Time}[/tex]

where:

Principal = the initial deposit

Rate = the interest rate (in decimal form)

Time = the number of years

n = the number of times interest is compounded per year

For Account 1:

Simple Interest = Principal x Rate x Time

= $6000 x 0.035 x 10

= $2100

The amount in Account 1 after 10 years will be the initial deposit plus the interest earned:

= $6000 + $2100

= $8100

For Account 2:

Since the interest is compounded annually, n = 1.

Compound Interest = [tex]Principal * (1 + Rate/ n)^{n * Time}[/tex]

= [tex]6000 *(1 + 0.035/1)^{1 * 10}\\= $6000 (1.035)^{10}\\= $8769.58[/tex]

After ten years, the amount in Account 2 will be $8769.58.

After ten years, the combined amount in both accounts will be:

$8100 minus $8769.58 equals $16869.58, resulting in a total of $16,869.58 in both accounts after ten years.

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From this graph , it takes 0.75 seconds to reach the highest position.

A graph is a visual representation of the relationship between two sets of data or variables, typically via lines or curves. A diagram or pictorial representation of facts or values that is arranged might be referred to as a graph in mathematics. The relationship between two or more items is frequently represented by the points on the graph

The graph indicates that the peak is at (0.75, 9)

The x-axis displays the time in seconds, while the y-axis displays the height in feet.

Consequently, it takes 0.75 seconds to reach the highest position.

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The given expression in the form ax + b will be (B) 1.8x + 4.1.

A finite collection of symbols that are properly created in line with context-dependent criteria is referred to as an expression, sometimes known as a mathematical expression.

An example is the expression x + y, which combines the terms x and y with an addition operator.

In mathematics, there are two different types of expressions: algebraic expressions, which also include variables, and numerical expressions, which solely comprise numbers.

So, we have the expression:

(3.6x-1.4) - (1.8x-5.5)

First, solve it in the form of ax + b as follows:

(3.6x-1.4) - (1.8x-5.5)

3.6x-1.4 - 1.8x+5.5

1.8x + 4.1

So, we have the expression: 1.8x + 4.1

Then, the coefficient and content will be (B) and the correct expression would be 1.8x + 4.1.

Therefore, the given expression in the form ax + b will be (B) 1.8x + 4.1.

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The inverse of (x-A)^c = B, where A = 2x + 1, is x = -(B^(1/c) + 1).

To find the inverse of the expression in (x - A)^c = B, where A = 2x + 1, we can use the following steps:

First, solve for x in terms of A

x = (A - 1) / 2

Substitute the expression for A into the original equation

(x - (2x + 1))^c = B

Simplify

(-x - 1)^c = B

Take the c-th root of both sides

-x - 1 = B^(1/c)

Solve for x

x = -(B^(1/c) + 1)

Therefore, the inverse of the expression in (x - A)^c = B, where A = 2x + 1, is given by

x = -(B^(1/c) + 1)

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--The given question is incomplete, the complete question is given

" Inverse of this in (x-A)^c = (B)

—-

where A = 2X+1 "--

The histogram shows that the majority of velvetleaf plants produced between 0 and 500 seeds. The highest count was 2,000 seeds, and the lowest count was 0 seeds. On average, velvetleaf plants produce around 500 seeds.

Answer: The angle between line AB and the axis of the cylinder is 60 degrees.

Step-by-step explanation:

Let's draw a cross-sectional diagram of the cylinder to help visualize the problem.

Label the center of the top circle as O and the center of the bottom circle as O'.

Label the midpoint of line AB as M.

Draw a line from M to the center of the cylinder, which intersects the axis of the cylinder at point C.

Because line AB is perpendicular to the axis of the cylinder, line MC is also perpendicular to line AB.

Label the length of line MC as h, and the distance between point M and the axis of the cylinder as x.

By the Pythagorean theorem, we know that OM^2 + h^2 = R^2 (the radius of the cylinder)

Similarly, O'M^2 + h^2 = R^2

Subtracting these two equations, we get OM^2 - O'M^2 = 0, which means that OM = O'M = R.

Therefore, triangle MOC is an isosceles triangle with MO and O'M both equal to R.

Because x is the distance between line AB and the axis of the cylinder, we know that x = MC - (R√3)÷2.

We also know that h = R - x (because OM = R).

Using the Pythagorean theorem, we can solve for MC: (R^2 - h^2)^0.5 = MC

Substituting h = R - x, we get MC = (2Rx - x^2)^0.5

Setting MC = (R√3)÷2 (from the problem statement), we can solve for x: x = R(3 - 3^0.5)^0.5

Finally, using the tangent function, we can solve for the angle between line AB and the axis of the cylinder: tanθ = (R√3)÷2 / x, where θ is the angle we are looking for.

Substituting x from step 15, we get tanθ = 1 / (3 - 3^0.5)

Using a calculator, we can solve for θ: θ = 60 degrees.

Answer:

.40n = 80, so n = 200

.95 × 200 = 190

Answer:

190

Step-by-step explanation:

We can use the formula for inverse variation, which states that the product of the time and the speed is constant:

time × speed = constant

Let's use t to represent the time needed to travel the distance at 54 miles per hour. We know that the time is 10 hours when the speed is 24 miles per hour. So we can set up the equation:

10 × 24 = t × 54

Simplifying, we get:

240 = 54t

Dividing both sides by 54, we get:

t = 240/54

Simplifying this fraction, we get:

t = 40/9

So it will take approximately 4.44 hours, or 4 hours and 26 minutes, to travel the same distance at 54 miles per hour.

The probability that Kylee wins at most 2 prizes in 3 attempts is 0.95625.

To answer this question, we can use the binomial distribution formula:

P(X ≤ 2) = P(X = 0) + P(X = 1) + P(X = 2)

where X is the number of times Kylee wins a prize, and P(X = k) is the probability of winning k prizes in 3 attempts.

Using the binomial distribution formula, we can calculate these probabilities using the following formula:

[tex]P(X = k) = (n choose k) × p^k × (1-p)^(n-k)[/tex]

where n is the number of trials (in this case, 3), p is the probability of winning a prize (0.45), and k is the number of

successes we want to calculate the probability for.

Now, let's plug in the values for k = 0, 1, and 2:

[tex]P(X = 0) = (3 choose 0) × 0.45^0 × (1-0.45)^3 = 0.342

P(X = 1) = (3 choose 1) × 0.45^1 × (1-0.45)^2 = 0.4095

P(X = 2) = (3 choose 2) × 0.45^2 × (1-0.45)^1 = 0.20475[/tex]

Now, we can add up these probabilities to find the probability that Kylee wins at most 2 prizes:

P(X ≤ 2) = P(X = 0) + P(X = 1) + P(X = 2) = 0.342 + 0.4095 + 0.20475 = 0.95625

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In the given problem, the surface area of the triangular prism is 65 square centimeters. The answer is not listed among the options provided

We need to find the surface area of the triangular prism, which is the sum of the areas of all its faces.

The triangular faces of the prism are congruent triangles, so we can find their area by multiplying the base and height and dividing by 2. The dimensions of the triangular faces are 5 cm (base) and 4 cm (height).

Area of each triangular face = (5 cm x 4 cm)/2 = 10 cm²

The rectangular faces are congruent rectangles, so we can find their area by multiplying the length and width. The dimensions of the rectangular faces are 5 cm x 3 cm and 3 cm x 4 cm.

Area of each rectangular face = (5 cm x 3 cm) = 15 cm²

Total surface area of the prism = 2 x Area of triangular face + 3 x Area of rectangular face

= 2 x 10 cm² + 3 x 15 cm²

= 20 cm² + 45 cm²

= 65 cm²

Therefore, the surface area of the triangular prism is 65 square centimeters. The answer is not listed among the options provided, so there might be a mistake in the question or answer choices.

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the fraction that rounds to 5 is option B, 5 1/2.

What is a fraction?

If the numerator is bigger, it is referred to as an improper fraction and can also be expressed as a mixed number, which is a whole-number quotient with a proper-fraction remainder.

Any fraction can be expressed in decimal form by dividing it by its denominator. One or more digits may continue to repeat indefinitely or the result may come to a stop at some point.

To round a fraction to 5, we need to find the fraction that is closest to 5. Therefore, we need to look at the fractional parts of each option and find which one is closest to 1/2.

A. 5 2/3 = 17/3, which is closer to 6 than to 5.

B. 5 1/2 = 11/2, which is exactly halfway between 5 and 6, so it rounds to 5.

C. 5 9/20 = 259/20, which is closer to 6 than to 5.

D. 4 9/20 = 209/50, which is closer to 4 than to 5.

Therefore, the fraction that rounds to 5 is option B, 5 1/2.

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The Buckley family would pay $51 either way if they rented the truck for 4 additional days.

To solve the question :

Total cost for Kendall's Moving :

= $27 + $6x,

where

x = Number of additional days rented.

Total cost for Newton Rent-a-Truck :

= $7 + $11x

To find the number of additional days we will put both the equations i.e., $27 + $6x and $7 + $11x, equal to each other.

= $27 + $6x = $7 + $11x

Subtracting $7 from both sides :

= $20 + $6x = $11x

Subtracting $6x from both sides :

= $20 = $5x

Dividing both sides by $5 :

= x = 4

Hence, the number of additional days is 4.

So,

Kendall's Moving and Newton Rent-a-Truck would be the same if the truck is rented for 4 additional days by the Buckley family :

Putting the values of x in the equations :

Total cost for Kendall's Moving :

= $27 + $6x,

= $27 + $6(4)

= $51

Total cost for Newton Rent-a-Truck

$7 + $11x

= $7 + $11(4)

= $51

Hence, the Buckley family would pay $51 either way if they rented the truck for 4 additional days.

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The missing angles in the given pair of lines AB and CD with transversals EF & GH intersecting at O & missing sides on the basis of similarity of triangles are:

∠IKF=w°=109°

JO=z=2.7 units

∠JLO=x°=39°

∠DLO=y°=141°

What is similarity?

If two forms or figures have an equal number of comparable sides and angles, they are said to be similar. Similar figures are those when two or more figures share the same shape but have varied sizes.

Given that

∠KIO=39°

∠IKO=71°

∠IOK=70°

IO=12 units

KO=8 units

LO=4 units

a)We know that ∠KIO=∠OLJ  {alternate interior angles}

∠KIO=∠OLJ=39°

∴x° = 39°

b)We know that ∠OLJ+∠OLD=180° {linear pair}

x°+y°=180°

39°+y°=180°

y°=180-39

y°=141°

c)We know that ∠IKO+∠IKF=180° {angles on straight line}

71°+w°=180°

w°=180-71

w°=109°

d)In ΔOKI and ΔOJL, we can see that

∠OIK=∠OLJ=39°

∠OKI=∠OJL=71°

∠KOI=∠JOL=70°

as the angles are congruent, we can say that ΔOKI and ΔOJL are similar.

∴Sides will be in same ratio

[tex]\frac{OI}{OL}[/tex]  = [tex]\frac{OK}{OJ}[/tex]  = [tex]\frac{KI}{JL}[/tex]

Taking [tex]\frac{OI}{OL}[/tex]  = [tex]\frac{OK}{OJ}[/tex]

[tex]\frac{12}{4} = \frac{8}{z}[/tex]

3z = 8

z =2.667

z≈2.7 units

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Answer:

Step-by-step explanation:

domain is -infinity to positive infinity range is -3 to infinity. Increasing from -3 to infinity and decreasing from - infinity to -3 and it’s minimum

Some possible prices for the socks that would meet this condition are $2.99, $2.50, $3.00, $2.95, etc.

A rate is a measure of the amount of change of one quantity with respect to another quantity. It expresses how much one quantity changes in relation to another quantity over a given time or distance.

If Diego has budgeted $35 for 5 pairs of socks and a pair of shorts, we can subtract the cost of the shorts from the total budget to find the amount he has left for the socks:

$35 - $19.95 = $15.05

To find the possible prices for the socks, we can divide the amount Diego has left by the number of pairs of socks he needs:

$15.05 / 5 pairs = $3.01 per pair

Therefore, Diego would be able to stay within his budget if he finds socks that cost $3.01 or less per pair. Some possible prices for the socks that would meet this condition are $2.99, $2.50, $3.00, $2.95, etc.

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The domain of the function 8 - [tex](x-3)^{2}[/tex] is R which is all the real numbers.

What is domain of a function?

The set or grouping of all potential values that may be used in the function is known as the domain.

We are given a function as 8 - [tex](x-3)^{2}[/tex].

Now, in order to find the domain, we need to find the values where the function is not defined for a value of x.

But, there is no such value for x where the function is not defined.

This means that all values of x give an output.

So, the domain is the set of all the real numbers.

Hence, the domain of the given function is R.

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The number of poetry books at the library that are for children is 510

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

Books = 600

If 8.5/10 of the poetry books are for children, we can calculate the number of poetry books for children as follows:

Number of poetry books for children = (8.5/10) x 600

Number of poetry books for children = 510

Therefore, there are 510 poetry books at the library for children.

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Positive divisors does n2 have are 5.

If an integer n has exactly three positive divisors, including 1 and n, it means that n is a perfect square of a prime number.

The reason for this is that a prime number has only two divisors: 1 and itself. Therefore, if n has exactly three positive divisors, n must be a perfect square of a prime number, since the only divisors of a perfect square are the divisors of its square root, and its square root must be a prime number.

Let's say that n is equal to p², where p is a prime number. The positive divisors of n are 1, p, and n (which is p²).

Now, to find the number of positive divisors of n², we can use the fact that any positive divisor of n² can be expressed in the form [tex]p^k[/tex], where 0 ≤ k ≤ 4 (since n² = p⁴).

Therefore, the positive divisors of n² are:

1, p, p², p³, and p⁴ (which is n²)

So, n² has 5 positive divisors: 1, p, p², p³, and n².

Hence, the answer is 5.

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The power of a statistical test of hypotheses is the probability that the test will reject the null hypothesis when a particular alternative value of the parameter is true.

It is the ability of the statistical test to detect a true difference between groups, or a true relationship between variables, when it exists. A high power indicates that the test has a low probability of making a type II error (failing to reject a false null hypothesis).

The power of a test is affected by various factors such as the sample size, level of significance, effect size, and variability of the data.

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It is not equal to 1 - (P-value), nor is it the smallest significance level at which the data will allow you to reject the null hypothesis or the probability that the test will reject both one-sided and two-sided hypotheses.

The correct answer is: The power of a statistical test of hypotheses is the probability that a significance test will reject the null hypothesis when a particular alternative value of the parameter is true. It is the ability of the test to detect a true difference or effect between two groups or conditions. The power is influenced by factors such as the sample size, effect size, and significance level, and is usually calculated before conducting a study to ensure that it has sufficient power to detect meaningful differences. It is not equal to 1 - (P-value), nor is it the smallest significance level at which the data will allow you to reject the null hypothesis or the probability that the test will reject both one-sided and two-sided hypotheses.

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Therefore, the solution to the system of equations is (x, y) = (-3, 4).

An equation is a mathematical statement that shows that two expressions are equal. It typically consists of two parts: the left-hand side (LHS) and the right-hand side (RHS), separated by an equal sign (=). The LHS and RHS can be composed of variables, constants, and mathematical operations such as addition, subtraction, multiplication, and division. Equations are used to solve problems in various fields such as physics, engineering, economics, and mathematics.

To solve the system of equations using elimination, we need to manipulate one or both equations so that one of the variables has the same coefficient with opposite signs. Here's how we can solve the system:

Multiply the first equation by -2 to get -4x - 10y = -28.

Add the second equation to the new equation to get -8y = -32.

Divide both sides by -8 to get y = 4.

Substitute y = 4 into either equation to solve for x.

Using the first equation:

[tex]2x + 5(4) = 14[/tex]

[tex]2x + 20 = 14[/tex]

[tex]2x = -6[/tex]

[tex]x = -3[/tex]

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Answer: 10

Step-by-step explanation:

10