The length of the radius of a cylinder is twice its height. If its volume is 864x in', what is the
length of its radius?
A. 3 inches
B.6 inches
C. 12 inches
D. 24 inches

Yuri will spend $ X more on concrete than on soil and wood.

When answering questions on Brainly, it is important to be factually accurate, concise, and professional.

It is also important to provide a step-by-step explanation of how you arrived at your answer.

The question is asking about the cost of materials for a patio, garden, and deck.

Let's break down the information we have.

Area of the patio = enter your response

Here

Cost of concrete = $ enter your response

Here

Area of the garden = enter your response

here

Cost of soil = $ enter your response

here

Total area of the deck = enter your response

here

Cost of wood = $ enter your response

here

Yuri will spend $ enter your response here more on concrete than on soil and wood.

To find the cost of each material, we need to multiply the area by the cost per unit area.

For example, the cost of concrete would be the area of the patio multiplied by the cost of concrete per unit area.

Let's call the cost per unit area for concrete C, the cost per unit area for soil S, and the cost per unit area for wood W.

Area of patio = P

Cost of concrete = C

Area of garden = G

Cost of soil = S

Total area of deck = D

Cost of wood = W

Yuri will spend X more on concrete than on soil and wood.

To find the values of P, C, G, S, D, and W, we need to use the information given in the question.

However, some values are missing.

We can use the given information to create equations that will help us find these values.

For example, we know that the total area of the deck is the sum of the area of the patio and the area of the garden, so we can write:

D = P + G

Similarly, we can write an equation for the cost of each material.

For example, the cost of concrete is the area of the patio multiplied by the cost per unit area for concrete, so we can write:

C = P * C

Similarly, we can write equations for the cost of soil and wood:

S = G * W, W = D * W

Now we have three equations and three unknowns: P, G, and D. We can solve this system of equations to find these values.

Let's solve for P and G first.

We'll use the equation

D = P + G

to eliminate G from the equations.

C = P * CS = G * WP = D - G

Substitute P = D - G into the first two equations.

C = (D - G) * CW = D * W - G * W

Now we have two equations and two unknowns: D and G.

We can solve for these values.

We'll use the equation

W = D * W - G * W

to eliminate W from the equations.

C = (D - G) * CS = G * SD = P + G = 2G - (W / C)

Substitute D = P + G into the first two equations.

C = P * C + G * CS = G * SW = P + G - DC = P * C + (D - P) * C + (W / C) * C = 2P * C + W

We can now solve for P, G, and D.

P = (C + S + W / C) / 2G = (S + W / C) / 2D = P + G = (C + S + W / C) / 2 + (S + W / C) / 2P = enter your response

here

C = enter your response

here

S = enter your response

here

W = enter your response

here

G = enter your response

here

D = enter your response

here

Now we can find the value of X, which is the difference between the cost of concrete and the combined cost of soil and wood.

X = C - (S + W)X = enter your response.

The area of the patio is enter your response here ​, so the cost of concrete is ​$ enter your response here. The area of the garden is enter your response here ​, so the cost of soil is ​$ enter your response here. The total area of the deck is enter your response here ​, so the cost of wood is ​$ enter your response here.

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Question:

Yuri bought a new house. The diagram shows the layout of his backyard. Yuri is designing improvements that he wants to make. Yuri plans to fill the patio with concrete, the garden with a special soil mixture, and the remaining areas that surround the hot tub with a wood deck. The table shows the costs associated with each project. How much more will Yuri spend on concrete than on soil and wood?

If workers in Alpha are more productive than those in Omega, they may be able to accomplish more work in the same amount of time, resulting in more total annual hours of work in Alpha. This could be due to a variety of factors, such as differences in technology, education levels, or infrastructure.

There could be several reasons why the total annual hours of work are much greater in Alpha than in Omega, even though both countries have identically sized working-age populations. Here are two possible reasons:

Differences in labor force participation: It is possible that a larger proportion of the working-age population in Alpha is participating in the labor force than in Omega. Labor force participation refers to the percentage of the working-age population that is either employed or actively seeking employment. If more people in Alpha are working or looking for work, then the total annual hours of work would be higher in Alpha than in Omega.

Differences in productivity: Another possible reason for the difference in total annual hours of work is differences in productivity levels between Alpha and Omega. Even if both countries have the same number of people in their working-age population, the productivity of those workers can vary significantly. If workers in Alpha are more productive than those in Omega, they may be able to accomplish more work in the same amount of time, resulting in more total annual hours of work in Alpha. This could be due to a variety of factors, such as differences in technology, education levels, or infrastructure.

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The total cost of the laptop with the sales tax included is 938.18.

The total cost of the laptop with the sales tax included is the sum of the original price and the tax amount. The formula to calculate the total cost is given below:

Total Cost = Original Price + (Original Price * Sales Tax Rate)

In this case, the Original Price is 882.99 and the Sales Tax Rate is 6.25%. Therefore, the Total Cost of the laptop with the sales tax included is calculated as follows:

Total Cost = 882.99 + (882.99 * 0.0625)

Total Cost = 882.99 + 55.19

Total Cost = 938.18

Rounding to the nearest cent, the total cost of the laptop with the sales tax included is 938.18.

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The truth regarding the conditions for constructing a confidence interval for a population mean for the real estate market is that E. All conditions have been met.

For a confidence interval to be construction, sample should be randomly selected, sample size should be no more than 10% of the population size, and the sampling distribution should be approximately normal. This can be achieved if the sample size is large (typically n ≥ 30) and the data doesn't have strong skewness or outliers.

The question states that the realtor is working in a large city, and it is reasonable to assume that 100 home sales are less than 10% of all homes sold in the previous 6 months in this large city. So, this condition is met.

The realtor has randomly selected 100 home sales, so the random condition is met. All conditions have therefore been met to construct a confidence interval.

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Options for this question include:

To estimate a population proportion with a margin of error of 1% and a 99% confidence interval, we would need a sample size of at least 6644 individuals.

The formula to calculate the sample size is:

n = [z² x p(1-p)] / e²

where:

n is the sample size

z is the z-score corresponding to the desired confidence level (in this case, 2.576 for a 99% confidence level)

p is the planning value for the population proportion, which we don't know in this case, so we will assume the worst-case scenario of p=0.5 (which gives us the maximum sample size needed)

e is the desired margin of error

Plugging in the values, we get:

n = [(2.576)² x 0.5(1-0.5)] / (0.01)²

n = 6643.04

Since we need to round up to the next whole number, the minimum sample size needed is 6644.

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The conditional probability of drawing a heart on the fourth draw, given that the first three cards are not hearts is 4.74%.

The conditional probability of drawing a heart on the fourth draw, given that the first three cards are not hearts, can be calculated using Bayes’ theorem:

P(heart on fourth draw | first three draws are not hearts) = P(heart on fourth draw and first three draws are not hearts) / P(first three draws are not hearts)

To calculate the numerator, we need to find the probability of drawing a heart on the fourth draw and the first three draws being not hearts. Since we are drawing without replacement, the probability of drawing a heart on the fourth draw is 13/49 (there are 13 hearts remaining out of 49 cards remaining). The probability of the first three draws being not hearts can be calculated as:

(39/52) x (38/51) x (37/50) = 0.4372

Therefore, the numerator is:

P(heart on fourth draw and first three draws are not hearts) = (13/49) x (39/52) x (38/51) x (37/50)

P(heart on fourth draw and first three draws are not hearts) =  0.0207

To calculate the denominator, we need to find the probability of the first three draws being not hearts. We already calculated this as 0.4372.

Therefore, the conditional probability of drawing a heart on the fourth draw, given that the first three cards are not hearts, is:

P(heart on fourth draw | first three draws are not hearts) = P(heart on fourth draw and first three draws are not hearts) / P(first three draws are not hearts)

P(heart on fourth draw | first three draws are not hearts) = 0.0207 / 0.4372

P(heart on fourth draw | first three draws are not hearts) ≈ 0.0474

So the probability of drawing a heart on the fourth draw, given that the first three cards are not hearts, is approximately 0.0474 or 4.74%.

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the perimeter of the door on the scale drawing is 4 centimeters. A scale drawing is a representation of an object that is drawn to a smaller or larger size than the actual object, but the proportions between the dimensions of the object are maintained.

In this case, we are given a rectangular door of a dollhouse with a height of 5 centimeters and a width of 3 centimeters, and we are asked to find the perimeter of the door on a scale drawing that uses the scale 2:8.

The scale 2:8 means that every 2 units on the scale drawing represent 8 units on the actual object. To find the dimensions of the door on the scale drawing, we can divide both the height and the width by 8 and then multiply by 2, since the scale ratio is 2:8. This gives us the following dimensions on the scale drawing:

Height = (5/8) x 2 = 1.25 centimeters

Width = (3/8) x 2 = 0.75 centimeters

Now, we can use these dimensions to find the perimeter of the door on the scale drawing. The perimeter of a rectangle is given by the formula:

Perimeter = 2 x (Length + Width)

In this case, the length and width of the door are the same as the height and width of the door, respectively. So, we can write:

Perimeter = 2 x (Height + Width)

= 2 x (1.25 + 0.75)

= 2 x 2

= 4

Therefore, the perimeter of the door on the scale drawing is 4 centimeters.

In summary, we can find the dimensions of the door on the scale drawing by dividing the actual dimensions by 8 and multiplying by 2, and we can find the perimeter of the door on the scale drawing using the formula for the perimeter of a rectangle.

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The value of the exact surface area of the cone is 360π

To find the surface area of a cone, we need to calculate the area of the circular base and the curved lateral surface.

The radius of the circular base can be found using the Pythagorean theorem:

r = √(s^2 - h^2)

where s is the slant height and h is the height.

In this case, we have:

r = √(26^2 - 24^2)

r = 10

So, the surface area is

S = πr² + πrl

This gives

S = π * 10² + π * 10 * 26

S = 360π

Hence, the exact surface area of the cone is 360π

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Answer:

b/c

Step-by-step explanation:

sin B = opp/hyp

sin B = b/c

The line that models the data points better is Red, because it goes through one of the points.

Data is information that has been organized and processed in a meaningful way. It is the raw material of digital systems and the foundation of all computer-based operations. It can be stored, retrieved, and manipulated in a variety of ways, and it is used to generate insights, drive decisions, and build solutions. Data can come from a variety of sources, including manual entry, sensors, databases, and the internet.

This is a better model than Blue, because the data points are not all close to the line, and having the line go through one of the points ensures that the line is better representing the points. Additionally, having three points above the line and three points below the line helps to make the line a better model of the data points, as it is more evenly distributed.

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The number of hot dogs is 100 while the number of snacks is 75. And it is found by using linear equation.

A linear equation is an algebraic equation of the form y=mx+b, where m is the slope and b is the y-intercept, and only a constant and a first-order (linear) term are present. The variables in the previous sentence, y and x, are referred to as a "linear equation of two variables" at times.

The linear equation to solve the question will be:-

h+s= 175 ------(1)

2.50h + 0.75s = 262.50 -----(2)

From equation (1), s= 175-h -----(3)

Put qeauation (3) into (2) :-

2.50h + 0.75 = 262.50

2.50 + 0.75 (175-h) = 262.50

2.50 + 131.25 - 0.75 = 262.50

Collect like terms :-

2.50-0.75= 262.50-131.25

1.75= 131.25

h= 131.25/1.75

h= 75

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The exact value of the circle is 36π square feet. Option A

The formula used for calculating the area of a given circle is expressed with the equation;

A = π(d/2)^2

A = πr²

Such that the parameters are;

The formula for radius is given as;

radius = diameter/2

divide the values

radius = 6 feet

Substitute the values

Area = 3.14 ×6²

multiply the values

Area = 36π square feet

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Based solely on statistical probability from demographic studies, the individual who has the greatest likelihood of being a smoker is a male aged between 18 to 24 years old.

According to demographic studies, men are more likely to smoke than women. Besides, the smoking rate increases with age, which means individuals aged between 18 to 24 have a higher likelihood of being a smoker than people of other ages.

Therefore, based solely on statistical probability from demographic studies, a male aged between 18 to 24 years old has the greatest likelihood of being a smoker.

It is important to note that statistical probability from demographic studies only shows what is likely or probable to happen but does not guarantee the actual occurrence of the event.

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Answer:

To calculate the total milk yield in one year, we need to multiply the number of dairy cows by the amount of milk each cow produces per year:

Total milk yield = 2650 dairy cows × 2320 gallons of milk per cow per year

Total milk yield = 6,188,000 gallons per year

To write this answer in scientific notation, we need to express the number 6,188,000 as a number between 1 and 10 multiplied by a power of 10. We can do this by moving the decimal point to the left until we have a number between 1 and 10, and counting the number of decimal places we moved. In this case, we need to move the decimal point 6 places to the left:

Total milk yield = 6.188 × 10^6 gallons per year

Therefore, the dairy farm yields 6.188 × 10^6 gallons of milk per year.

the center of dilation for the triangle is (0,0)

The center of dilation is a point in a plane about which a dilation, a type of transformation, is performed. A dilation is a transformation that changes the size of a geometric figure, while preserving its shape and orientation. The center of dilation is the fixed point that serves as the reference for the scaling or shrinking of the figure.

In a dilation, each point of the original figure is moved away from or towards the center of dilation, by a certain factor called the scale factor.  

The coordinate of yellow triangle and scaled triangle both passes through center of axes.

So, the center of dilation is (0,0).

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The inequality trigonometry expression 2sin(2x - π/2) ≥ √3 when solved has a solution of x ≥ 5π/12

In the question, we have the following expression

2sin(2x - π/2) ≥ √3

The above expresson is an inequality and a trigonometry expression

So, we have

2sin(2x - π/2) ≥ √3

Divide by 2

sin(2x - π/2) ≥ 1/2√3

Take the arc sin of both sides

2x - π/2 ≥ π/3

Add π/2 to both sides of the expression

2x ≥ π/2 + π/3

Evaluate the like terms

2x ≥ 5π/6

Divide both sides by 2

x ≥ 5π/12

Hence, the solution to the variable x is x ≥ 5π/12

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In Triangle ABC, we can draw a circle around each vertex of the triangle.

If the radii of all three circles are equal, then Triangle ABC is an equilateral triangle.

Radii is the plural form of radius. It is half of the diameter and the length of the radius is used to calculate the area and circumference of the circle.

To determine whether a triangle is an equilateral triangle, we can use circles.

In this method, we draw three circles, one around each vertex of the triangle.

We then measure the radii of the circles, ensuring that they are all equal. If the radii of the three circles are equal, then the triangle is an equilateral triangle.

In Triangle ABC, we can draw a circle around each vertex of the triangle. Then, we could use a measuring tool to measure the radii of each circle. If the radii of all three circles are equal, then Triangle ABC is an equilateral triangle.

This method of using circles to determine whether a triangle is an equilateral triangle is simple and efficient. It does not require any complex calculations, and it is easy to understand.

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The confidence level of the CI is 95%.

The formula for the confidence interval of a normal distribution is

CI = X ± Zα/2 × σ/√n

Where

CI is the confidence interval

X is the sample mean

Zα/2 is the Z-score corresponding to the desired confidence level α/2

σ is the population standard deviation

n is the sample size

We know that the width of the confidence interval is 3.4, so

3.4 = 2 × Zα/2 × σ/√n

We also know that σ = √22 = 4.69, X = 25, and n = 15. Plugging these values into the equation and solving for Zα/2

3.4 = 2 × Zα/2 × 4.69/√15

Zα/2 = 1.96

The Z-score corresponding to a 95% confidence level is 1.96. Therefore, the confidence level of the CI is 95%.

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The population of the city will be approximately 597,543 people after 11 years.

We can solve this problem using the formula for exponential growth:

[tex]N = P(1 + r)^t[/tex]

where:

N = final population

P = initial population

r = annual growth rate (as a decimal)

t = number of years

In this case, we have:

P = 370,000

r = 0.0475 (since the annual growth rate is 4.75%)

t = 11

Substituting these values into the formula, we get:

[tex]N = 370,000(1 + 0.0475)^{11}[/tex]

Using a calculator, we can simplify this expression to:

N = 597,542.64

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The surface area of the triangular prism is 960 units squared.

The surface area of the triangular prism can be found as follows:

surface area of the triangular prism = bh + l(s₁ + s₂ + s₃)

where

Therefore,

surface area of the triangular prism = 24 × 16  + 9 (20 + 20 + 24)

surface area of the triangular prism = 384 + 9(64)

surface area of the triangular prism = 384 + 576

surface area of the triangular prism = 960 units²

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Answer: b

Step-by-step explanation:

The 12 of each type of the ring would give max profit for the company.

Let x = number of VIP rings: let y = number of SST rings

:

The total production inequality;

x + y =< 24

y = 24 - x; arranged to plot graph (purple)

:

The labor inequality;

3x + 2y =< 60

2y = 60 - 3x

y = 60/2 - (3/2)x

y = 30 - 1.5x; arranged to plot the graph (red).

From the graph, the 3 corners of the area of feasibility (at or below the lines whichever is lower):

: x/y;.....profit on each type;... total profit

0,24; 40(0) + 35(24) = 0 + 840 = $840

12,12; 40(12) + 35(12) = 480 + 420 = $900

20,0; 40(20) + 35(0) = 800 + 35(0) = $800.

Therefore, the 12 of each type of the ring would give max profit for the company.

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The value of x is 2 inches.

We are given that the area of the square is 16 square inches and can be represented by the expression,

(x+2)^2 - 16 = 0

We can simplify this equation by expanding the square,

x^2 + 4x + 4 - 16 = 0

x^2 + 4x - 12 = 0

Now we can use the quadratic formula to solve for x

x = (-b ± sqrt(b^2 - 4ac)) / 2a

Where a = 1, b = 4, and c = -12.

Plugging in these values, we get

x = (-4 ± sqrt(4^2 - 4(1)(-12))) / 2(1)

x = (-4 ± sqrt(16 + 48)) / 2

x = (-4 ± sqrt(64)) / 2

x = (-4 ± 8) / 2

We get two solutions,

x = (-4 + 8) / 2 = 2

x = (-4 - 8) / 2 = -6

Since we are dealing with the length of a side of a square, we can eliminate the negative solution and conclude that the value of x is 2 inches.

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The given question is incomplete, the complete question is:

The length in inches of each side of a square is given by the expression x + 2 . the area of the square can be represented by (x+2)^2−16=0 when the area is 16 square inches. what is the value of x?

Answer:

Using the Pythagorean theorem, we know that:

a^2 + b^2 = c^2

where a and b are the legs of the right triangle, and c is the hypotenuse.

We can plug in the values given:

9^2 + b^2 = 18^2

Simplifying:

81 + b^2 = 324

b^2 = 243

b = sqrt(243) = 15.6 (rounded to the nearest tenth)

Therefore, the length of the other leg is approximately 15.6 cm.

Step-by-step explanation:

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There are 3 adults in the family by using the method of substitution and elimination.

Substitution is a method used in mathematics to replace one or more variables in an equation or expression with a value or expression that is equivalent to the variable(s). This is done in order to simplify an equation or expression or to solve for a variable.

Elimination is a method used in mathematics to solve a system of equations by eliminating one variable. This method involves manipulating the equations in such a way that one of the variables is eliminated, leaving a simpler equation with only one variable that can be solved easily.

In the given question,

Here's how we can solve for x, the number of adults:

Multiply the first equation by 2 to get rid of the coefficient of x in the second equation:

12x + 10y = 56

10x + 14y = 58

Subtract the first equation from the second equation to eliminate y:

10x + 14y - (12x + 10y) = 58 - 56

-2x + 4y = 2

Divide both sides by -2 to isolate x:

x - 2y = -1

x = 2y - 1

Substitute x = 2y - 1 into one of the original equations (let's use the first one) and solve for y:

6x + 5y = 28

6(2y - 1) + 5y = 28

12y - 6 + 5y = 28

17y = 34

y = 2

Substitute y = 2 into the equation x = 2y - 1 to solve for x:

x = 2(2) - 1

x = 3

Therefore, there are 3 adults in the family.

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The resolution (n) is an important factor when specifying the smallest ton. If the TPWM (time-proportional width modulation) doubles and the ton (time-on) remains the same, the resolution will also double.

This is because the same amount of time (ton) is distributed over twice the pulses (TPWM).

To better understand this, imagine having 10 slices of a cake and trying to divide them into 2 even halves. You can achieve that by cutting each slice into 2 parts. The same logic applies to TPWM and ton.

TPWM represents the number of “slices” and ton represents the “time” allotted to each slice. When TPWM doubles, resolution (n) doubles as well. This is because twice the number of pulses (TPWM) are spread over the same time (ton), meaning that each pulse gets a smaller amount of time (a higher resolution).

The resolution (n) is inversely proportional to TPWM, meaning that if TPWM increases, resolution decreases, and if TPWM decreases, resolution increases. Thus, when TPWM doubles and ton remains the same, resolution (n) doubles as well.

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Coupling tetraalkylammonium and ethylene glycol ether side chain is an effective method to enable highly soluble anthraquinone-based ionic species for nonaqueous redox flow battery. The side chains of the tetraalkylammonium are modified with the ethylene glycol ether, which is a highly polar solvent, allowing for better solubility in nonaqueous electrolyte solutions. Additionally, the ethylene glycol ether has the ability to modify the stability of the ionic species, preventing aggregation and ensuring the longevity of the battery. This increases the redox capacity and enhances the performance of the flow battery.

The ethylene glycol ether-tetraalkylammonium coupling has been proven to be an effective method for improving the solubility and stability of anthraquinone-based ionic species. For example, it has been observed that the coupling of ethylene glycol ether to anthraquinone-based ionic species enhanced the current density of the battery by more than 3 times. Furthermore, the coupling process has also been found to improve the energy efficiency and storage capacity of the nonaqueous redox flow battery.

Overall, coupling tetraalkylammonium and ethylene glycol ether side chain is an effective method for enabling highly soluble anthraquinone-based ionic species for nonaqueous redox flow battery. This process has been proven to improve the performance of the battery, including current density, energy efficiency, and storage capacity.

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The value of sides b for different value of a  in a rectangle are;

a=2 and b=7

a=1/3 and b=42

A rectangle is a type of quadrilateral with four sides and four right angles (90-degree angles). It is a two-dimensional shape with opposite sides that are parallel and equal in length. The opposite sides of a rectangle are also perpendicular to each other, which means they meet at 90-degree angles.

A = l x w, where A is the area, l is the length, and w is the width, calculates the area of a rectangle.

In this case, we are given that the area is 14 square units, so we can set up the equation:

14 = a x b

Given;

a=2

Using this value as a replacement in the formula, we obtain:

14 = (2) x b

b=7

Taking another value of a=1/3

Using this value as a replacement in the formula, we obtain:

14=1/3×b

b=42

Therefore, The value of b for different value of a are;

a=2 and b=7

a=1/3 and b=42

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∠1 + ∠2 = 180

Substituting the given expressions for ∠1 and ∠2:

8x + (2x - 3) = 180

Simplifying and solving for x:

10x - 3 = 180

10x = 183

x = 18.3

Now we can substitute x back into the expression for ∠1 to find its measure:

∠1 = 8x = 8(18.3) = 146.4 degrees.

Therefore, if ∠1 and ∠2 add up to 180 degrees and ∠1 is given as 8x° and ∠2 is given as (2x - 3)°, then ∠1 measures 146.4 degrees

Answer:

<1=146.4

<2=34.6

Step-by-step explanation:

<1+<2=180 degrees

So,

8x+(2x-3)=180

10x-3=180

10x=183

X=18.3

subsitute:

<1=8x

<1=8(18.3)

<1=146.4

<2=2x-3

<2=2(18.3)-3

<2=34.6

The expression 3x-(4-x) is equivalent to 4x-4

The distributive property is a mathematical property that describes the relationship between multiplication and addition or subtraction. It states that when a number is multiplied by a sum or difference of two or more numbers, the result is the same as if we multiplied the number by each of the individual terms inside the parentheses and then added or subtracted the products.

To simplify the expression 3x-(4-x), we can distribute the negative sign to the second term inside the parentheses, which gives:

3x - (4 - x) = 3x - 4 + x

Now we can combine the like terms (3x and x) to get:

3x - 4 + x = 4x - 4

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The given question is incomplete, the complete question is:

Which expression is equivalent to 3x-(4-x)?