3(5x+2)=2(3x-6)
help i need to show work and I have no idea how to do this

Answer:

x = 7

Step-by-step explanation:

When two parallel lines are cut by a transversal, the corresponding angles are equal.

8x +2 = 7x + 9

Subtract 2 from both sides

8x = 7x + 9 - 2

8x = 7x + 7

Subtract 7x from both sides

8x - 7x = 7

x = 7

Answer:

x=7

Step-by-step explanation:

The 2 given angles are vertical to each other, so that means they are equal to each other.

To solve, set up an equation:

\(7x+9=8x+2\)

Solve by isolating the variable. [Subtract and divide]

\(7x=8x-7\)

\(-x=-7\)

Multiply both sides by -1 to get rid of the negative sign.

\(x=7\)

I hope this helps!

Answer:

110 women, see below for explanation. (hope this helps)

Step-by-step explanation:

3 to 5

3x + 5x = 176

8x = 176

x = 176/8

x = 22

3*22 = 66 men

5*22 = 110 women

Answer:

B

Step-by-step explanation:

Given 2 sides of a triangle then the third side x is

difference of 2 sides < x < sum of 2 sides , that is

17 - 10 < x < 17 + 10

7 < x < 27

In terms of AC , then

7 < AC < 27 → B

Answer:

all u need to know is that a side of a triangle is always smaller ( not smaller or equall) than the sum of two other sides of the triangle which in this case means AC is smaller than 27 and the only choice that is meantioning this is B so yea thats it (u cab always eleminate options if u dont know eveythibg about question but u just know some of them are wrong for some reason)

Answer:

Step-by-step explanation: y=22.5

By using a trigonometric relation, we will see that the value of x is 60.57°

On the image, we can see a right triangle where x represents one of the angles.

We can see that the length of the two catheti are shown, such that the adjacent cathetus is 2.2, and the opposite cathetus is 3.9, then we can use the trigonometric relation:

tan(a) = (opposite cathetus)/(adjacent cathetus)

Then we can write:

tan(x) = 3.9/2.2

Using the inverse tangent function in both sides, we will get:

Atan( tan(x)) = Atan(3.9/2.2)

x = Atan(3.9/2.2) = 60.57°

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Answer:

D

Step-by-step explanation:

10² + 14² = -17.20²

-17.20² = 2sqrt74

Answer:

C 296 ft

Step-by-step explanation:

hypotenuse^2 = side1^2 + side2^2

==> hypotenuse^2 = 10^2 + 14^2

==> hypotenuse^2 = 100 + 196

==> hypotenuse^2 = 296

==> hypotenuse = square root (296)

==> hypotenuse = 17.2046505

The length of the missing side = 296 in radical form

Answer:

30 miles per gallon

Step-by-step explanation:

I jus Done this one

The type of sampling used in this scenario is A Systematic sampling.

Systematic sampling involves selecting every kth element from a population list after randomly selecting a starting point. In this case, Christopher collects data from all the band members in his class, indicating that he is sampling systematically from a known list of band members.

This method ensures that every band member in the class has an equal chance of being selected, and it simplifies the process by following a predetermined systematic approach rather than relying on random selection or stratification.

Therefore, the type of sampling used in this scenario is A Systematic sampling.

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Complete question is below

To study the sleeping habits of all band members in his school, Christopher collects data from all the band members in his class. Which type of sampling is used? Select the correct answer below:

A Systematic sampling

B Stratified sampling

C Cluster sampling

D Convenience sampling

Answer:

Teodolindo obtuvo 22 respuestas correctas y 8 respuestas incorrectas o no contestadas.

Step-by-step explanation:

Un sistema de ecuaciones lineales, también conocido como sistema lineal de ecuaciones o simplemente sistema lineal, es un conjunto de ecuaciones lineales (es decir, un sistema de ecuaciones en donde cada ecuación es de primer grado), en el cual se relacionan dos o más incógnitas.

En los sistemas de ecuaciones, se debe buscar los valores de las incógnitas, con los cuales al reemplazar, deben dar la solución planteada en ambas ecuaciones.

En este caso se debe establecer un sistema de ecuaciones, donde las variables son:

Siendo 30 preguntas en el examen, se tiene la ecuación:

x + y= 30

Por cada respuesta correcta se obtenían 5 puntos y por cada respuesta incorrecta o pregunta no contestada, se perdían 2 puntos. Teodolindo obtuvo 94 puntos en este examen. Entonces se representa esta situación mediante la expresión:

5*x - 2*y= 94

Entonces el sistema de ecuaciones a resolver es:

\(\left \{ {{x+y=30} \atop {5*x-2*y=94}} \right.\)

El método de sustitución consiste en despejar o aislar una de las incógnitas (por ejemplo,  x ) y sustituir su expresión en la otra ecuación. De este modo, obtienes una ecuación de primer grado con la otra incógnita,  y . Una vez resuelta, calculas el valor de  x  sustituyendo el valor de  y  calculado.

Entonces, despejando el valor de x de la primer expresión obtienes:

x= 30 -y

Reemplazando en la segunda ecuación obtienes:

5*(30 -y) - 2*y= 94

Resolviendo:

5*30 - 5*y - 2*y= 94

150 - 5*y - 2*y= 94

- 5*y - 2*y= 94 -150

-7*y= -56

y= (-56)÷(-7)

y= 8

Reemplazando el valor de y obtenido en la expresión x= 30 -y se obtiene:

x= 30 - 8

x=22

Teodolindo obtuvo 22 respuestas correctas y 8 respuestas incorrectas o no contestadas.

Answer: combining like terms

Step-by-step explanation:

The rational function doesn't have a horizontal asymptote

How to find horizontal asymptote ?

By examining the degrees of the numerator and denominator, one can find the horizontal asymptote of a rational function. The horizontal asymptote is y = 0 if N is the degree of the numerator, D is the degree of the denominator.

To find the horizontal asymptotes apply the limit x→∞ or x→ -∞. To find the vertical asymptotes apply the limit y→∞ or y→ -∞. To find the slant asymptote (if any), divide the numerator by the denominator.

Since the degree of numerator is lesser than the degree of denominator, hence there is only one horizontal asymptote at y=0

Horizontal asymptote : (y=0)

\(f(x) = \frac{4}{x^{2} - 3x}\)

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Each pound is 1.75 so if you multiply that by 8 you get $14

Answer is $14

Answer:

triangle b and triangle d

Step-by-step explanation:

3^2+4^2=5^2

2+4=6

Answer:

Triangle b- 3,4,5

5²=3²+4²

Triangle d- √2,√4√6

(√6)²=(√2)²+(√4)²

Answer:

Step-by-step explanation:

FOR A

( 7 * 10^5) * ( 3 * 10^2)

= option B that is 21 * 10 ^ 7

For B

( 2 * 10^5) / (4 * 10^2)

= option B that is 5 * 10^2

The required answer is a combination of weights that can result in a zero standard deviation.

The portfolio with a standard deviation of zero is comprised of Assets A and B. This is because when two assets are perfectly negatively correlated, their returns will cancel each other out, resulting in a portfolio with no risk. On the other hand, it is not possible to determine if the portfolio with a standard deviation of zero is comprised of Assets A and C. This is because the correlation between Assets A and C is unknown, and there may not be a combination of weights that can result in a zero standard deviation.

The standard deviation is a measure of the amount of variation or dispersion of a set of values. A low standard deviation indicates that the values tend to be close to the mean (also called the expected value) of the set, while a high standard deviation indicates that the values are spread out over a wider range.

The portfolio with a standard deviation of zero is comprised of assets A and B. This means that the combination of these two assets has a perfectly negative correlation, leading to the elimination of the overall risk in the portfolio.The standard deviation of a population or sample and the standard error of a statistic (e.g., of the sample mean) are quite different, but related. The sample mean's standard error is the standard deviation of the set of means that would be found by drawing an infinite number of repeated samples from the population and computing a mean for each sample. The mean's standard error turns out to equal the population standard deviation divided by the square root of the sample size, and is estimated by using the sample standard deviation divided by the square root of the sample size In contrast, a portfolio of assets A and C cannot be determined, as there isn't enough information provided to establish their correlation or the possibility of achieving a standard deviation of zero.

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Answer: 700

Step-by-step explanation:

Answer:

700

Step-by-step explanation:

copy and paste

Answer:

Rounded to the nearest tenth, the volume is 1,437,773.5 cubic units.

Step-by-step explanation:

First, we need to use the formula for the circumference of a sphere to find the radius:

C = 2πr

140π = 2πr

r = 70

Now we can use the formula for the volume of a sphere:

V = (4/3)πr^3

V = (4/3)π(70)^3

V ≈ 1,437,773.5

Answer:

I think its 967.22 (2dp) I'm sorry if it's wrong

Step-by-step explanation:

use formula 2*pi *r

Let's begin by listing out the given information:

2.

a)

b)

Answer:

2/7

Step-by-step explanation:

So we multiply 3 by 2, and get 6.

Then we multiply 1 by 4, and get 4.

Next we give both terms new denominators -- 4 × 2 = 8.

So now our fractions look like this:

6/8 - 4/8

6 − 4 = 2

So the answer is:

2/8

The current of the river is 3 miles per hour and the speed you would row at in still water is 15 miles per hour.

To find the current of the river and the speed you would row at in still water, we can use the formula:

Speed downstream = Speed in still water + Current of the river
Speed upstream = Speed in still water - Current of the river

Let's start by solving for the current of the river.

Given:
Distance between the two cities = 12 miles
Time downstream = 2/3 hour
Time upstream = 3/2 hour

To find the current of the river, we need to compare the time it takes to row downstream to the time it takes to row upstream.

1. Finding the speed downstream:
Distance = Speed downstream × Time downstream
12 miles = Speed in still water + Current of the river × 2/3 hour

2. Finding the speed upstream:
Distance = Speed upstream × Time upstream
12 miles = Speed in still water - Current of the river × 3/2 hour

Now we have a system of two equations:

Equation 1: 12 miles = (Speed in still water + Current of the river) × 2/3 hour
Equation 2: 12 miles = (Speed in still water - Current of the river) × 3/2 hour

We can solve this system of equations to find the values of the current of the river and the speed in still water.

Multiplying Equation 1 by 3 and Equation 2 by 2, we get:

Equation 3: 36 miles = (Speed in still water + Current of the river) × 2 hour
Equation 4: 24 miles = (Speed in still water - Current of the river) × 3 hour

Adding Equation 3 and Equation 4, we eliminate the Current of the river:

36 miles + 24 miles = (Speed in still water + Current of the river) × 2 hour + (Speed in still water - Current of the river) × 3 hour

60 miles = (2 × Speed in still water × 2 hour)

Dividing both sides by 4 hours:

15 miles/hour = Speed in still water

Now, to find the current of the river, substitute the value of Speed in still water into either Equation 3 or Equation 4.

Let's use Equation 3:

36 miles = (15 miles/hour + Current of the river) × 2 hour

Dividing both sides by 2:

18 miles = 15 miles/hour + Current of the river

Subtracting 15 miles/hour from both sides:

3 miles/hour = Current of the river

So, the current of the river is 3 miles per hour and the speed you would row at in still water is 15 miles per hour.

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Answer:

D

Step-by-step explanation:

6x7x4= 168

Type I error is committed when we reject a true null hypothesis -this statement is true.

In statistical hypothesis testing, a Type I error is a mistake made by rejecting a null hypothesis when it is valid. It is also known as a false-positive error.b. 95% confidence interval is wider than the 90% confidence interval - True. When compared to a 90% confidence interval, a 95% confidence interval is wider. The probability of capturing the actual population mean is higher with the wider interval. c. As the sample size increases, the width of the 95% confidence interval increases - False.

As the sample size increases, the width of the confidence interval decreases. d. Population mean μ is a statistic - False. μ is the symbol for the population mean, which is a parameter, not a statistic. e. As type I error increases Type II error also increases - True. Increasing the probability of making a Type I error also increases the probability of making a Type II error. These two types of errors are inversely proportional to each other. If one increases, the other decreases.

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When x = 2, y = -3, and z = 1, the expression 24 + |x - 4| evaluates to 26.

Let's evaluate the given expression step by step.

First, we have |x - 4|. Substituting x = 2 into the expression, we have |2 - 4|. The absolute value of (2 - 4) is 2.

Next, we add 24 to the absolute value of (x - 4): 24 + 2 = 26.

Therefore, when x = 2, y = -3, and z = 1, the expression 24 + |x-4|evaluates to 26.

In this case, the values of y and z are not used in the expression, so their values do not affect the result. Only the value of x = 2 is used to evaluate the absolute value portion of the expression.Hence, regardless of the values of y and z, the final evaluation of the expression is 26 when x = 2.

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a)

• Data: 8,,, 12,, ,18, 10, 13, 24, 30, 19, 22,, ,24, 19,, ,14, 17,, ,32,, ,21

Organizing the data:

• 0: 8

• 1: 0, 2, 3, 4, 7, 8, 9, 9

• 2: 1, 2, 4, 4,

• 3: 0, 2

Plotting:

b)

• Data: 54,, 63, ,52, 54, 21,, ,39, 48,, ,55,, ,32,, 68, ,53, 44, 49,, ,36,, ,27

Organizing the data:

• 2: 1, 7

• 3: 2, 6, 9

• 4: 4, 8, 9

• 5: 2, 3, 4, 4, 5,

• 6: 3, 8

Plotting:

With a pile of books, you can shuffle, add, and remove books from the top of the pile as well as the bottom. This way, the books can be arranged in an order that makes sense to you.

If you are given a pile of books on your desk, where you can only remove a book from the top of the pile, you cannot remove a book from underneath another one. Neither can you add a book beneath another one. In such a scenario, the other operations that can be performed with the pile of books are given below:Shuffling of Books: If you are required to change the order of the books, you can do so by shuffling the books one after the other. This way, the books are rearranged, and the order is changed.Addition of Books: You can add a new book to the pile by placing it on the top of the pile. This way, the book becomes a part of the pile, and you can remove it in the same way as you remove the other books.Subtraction of Books: As the books can be removed only from the top of the pile, you can remove the books until you reach the book that you are looking for. Once the book is found, you can take it out from the pile and place it on the desk.Overall, with a pile of books, you can shuffle, add, and remove books from the top of the pile as well as the bottom. This way, the books can be arranged in an order that makes sense to you.

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Answer:

Hello your answer should be: Bella saved more per chore than Sweet T.

Step-by-step explanation:

Hope this helped! :)

Have a great rest of your day!

The confidence associated with an interval estimate is called the confidence level.

When making an interval estimate, such as estimating a population parameter based on a sample, it is important to provide an indication of the level of confidence we have in the estimate. The confidence level represents the probability or level of certainty that the true population parameter falls within the calculated interval.

For example, if we calculate a 95% confidence interval for the mean height of a population, it means that we are 95% confident that the true population mean height lies within that interval. This implies that if we were to repeat the sampling and interval estimation process multiple times, approximately 95% of the intervals would contain the true population parameter.

The confidence level is typically expressed as a percentage, such as 90%, 95%, or 99%. A higher confidence level indicates a greater level of certainty in the interval estimate but also results in a wider interval.

In summary, the confidence level associated with an interval estimate represents the level of confidence or probability that the interval contains the true population parameter.

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Answer:

Solution,

X=-2

y=4

Now,

3x+4y

\( = 3 \times ( - 2) + 4 \times 4 \\ = - 6 + 16 \\ = 10\)

hope this helps...

Good luck on your assignment..

Answer:

Ok,you just need substitute the x for the value given\

=3x+4y

=3(-2)+4(4)  Multiple the values

=-6+16        Just add the values  

=10             So,this is the answer

I hope this help you :)

If you need some help more just let me know...

Answer:

40 pensil

Step-by-step explanation:

Dari pertanyaan di atas, kita diberitahu bahwa:

Dita memiliki 10 kotak pensil

1 kotak pensil = 36 pensil

10 kotak pensil =

Cross Multiply

10 × 36 = 360 pensil.

Dari pertanyaan tersebut, kami diberitahu bahwa Dita memiliki 9 orang teman dan ia membagikan semua pensilnya secara merata kepada mereka di hari ulang tahunnya.

Jumlah pensil yang diterima setiap teman dihitung sebagai:

360 pensil ÷ 9 teman

= 40 pensil.

Oleh karena itu, setiap teman mendapat 40 buah pensil.