Mathematics College

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Answers

Answer 1

Answer:

Final volume, V2 = 8.57 liters

Step-by-step explanation:

Given the following data;

Initial volume, V1 = 7.7 liters

Initial pressure, P1 = 6.9 atm

Final pressure, P2 = 6.2 atm

To find the new volume V2, we would use Boyles' law.

Boyles states that when the temperature of an ideal gas is kept constant, the pressure of the gas is inversely proportional to the volume occupied by the gas.

Mathematically, Boyles law is given by;

[tex] PV = K[/tex]

[tex] P_{1}V_{1} = P_{2}V_{2} [/tex]

Substituting into the equation, we have;

[tex] 6.9 * 7.7 = 6.2*V_{2} [/tex]

[tex] 53.13 = 6.2V_{2} [/tex]

[tex] V_{2} = \frac {53.13}{6.2}[/tex]

[tex] V_{2} = 8.57 [/tex]

Final volume, V2 = 8.57 liters

Therefore, the new volume is 8.57 liters.

Answer 2

Answer:

just greeting so that the other one can get a brainliest (would be kind if the favor would be returned :D )

Related Questions

What is the quotient of Two-thirds and StartFraction 2 Over 9 EndFraction?

Answers

Answer:

3.

Step-by-step explanation:

2/3 / 2/9

= 2/3 * 9/2

= 18/6

= 3.

PLEASE HELP!

A news story needs to be shared 1,500,000 times in 5 days to get featured on a talk show. The exponential model y=5⋅7x represents the number of shares, y, a news story receives in x days.


About how many days will it take for a news story to reach 1,500,000 shares?

Answers

Answer:

It will take 8.17 days for a news story to reach 1,500,000 shares.

Step-by-step explanation:

Note: The correct exponential model is as follows:

y = 5⋅7^x ......................................... (1)

Where:

y = 1,500,000

x = ?

Substituting y = 1,500,000 into equation (1), we have:

1,500,000 = 5⋅7^x ........................ (2)

Taking the natural log of both sides of equation (2) and solve for x, we have:

ln1,500,000 = xln5.7

x = ln1,500,000 / ln5.7

x = 14.2209756660724 / 1.7404661748405

x = 8.17241379310345

Approximating to 2 decimall places, we have:

x = 8.17

Therefore, it will take 8.17 days for a news story to reach 1,500,000 shares.

whats the answer. ill make this 20 pts

Answers

Answer:

B

Step-by-step explanation:

[tex] \sqrt[y]{ {x}^{z} } = {x}^{ \frac{z}{y} } \\ [/tex]

y - 4.6 = 12
Pls help

Answers

Answer:

y = 16.6

Step-by-step explanation:

y - 4.6 = 12

Add 4.6 to each side

y - 4.6+4.6 = 12+4.6

y = 16.6

Which lists all of the y-intercepts of the continuous
function in the table?
O (0,0)
O (-1,0), (2, 0)
O (-1,0), (0, 0)
O (-1,0), (0, 0), (2, 0)

Answers

Answer: (0,0)

Step-by-step explanation:

got it correct

The value of y-intercept of the given function is (0,0).

What is an expression?

Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.

Since, We know that;

When a function intersects the y-axis then the point of intersection is called y-intercept of the function,

Also, for y-intercept x = 0.

That is, if f(x) is the function then its y-intercept is (0, f(0) )

By the given table for x = 0, f(x) = 0

Hence, tWhen a function intersects the y-axis then the point of intersection is called y-intercept of the function,

Also, for y-intercept x = 0.

That is, if f(x) is the function then its y-intercept is (0, f(0) )

By the given table for x = 0, f(x) = 0

Hence, the y-intercept of the given function is (0,0),

Thus, The value of y-intercept of the given function is (0,0).

Learn more about the mathematical expression visit:

brainly.com/question/1859113

#SPJ7

When the daughter was born, the parents planted tree A. When the son was born, they planted the tree B. tree A and tree B combined have been growing for 18 years. What age will the daughter and the son be after 1 year?​

Answers

Answer:

I’m pretty sure 19 years old.

Step-by-step explanation:

Hope I could help

She should be around 19 years of age.

The distribution of student scores on the quantitative section of the SATs have an approximately normal distribution with a mean score of 501 points, and a standard deviation of 85 points. If you randomly select one student who has taken the SAT, what is the probability that the student will have scored greater than 600 points on the quantitative section of the SATs

Answers

Answer:

0.122 = 12.2% probability that the student will have scored greater than 600 points on the quantitative section of the SATs.

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions can be solved using the z-score formula.

In a set with mean [tex]\mu[/tex] and standard deviation [tex]\sigma[/tex], the z-score of a measure X is given by:

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the p-value, we get the probability that the value of the measure is greater than X.

Mean score of 501 points, and a standard deviation of 85 points.

This means that [tex]\mu = 501, \sigma = 85[/tex]

What is the probability that the student will have scored greater than 600 points on the quantitative section of the SATs?

This is 1 subtracted by the p-value of Z when X = 600. So

[tex]Z = \frac{X - \mu}{\sigma}[/tex]

[tex]Z = \frac{600 - 501}{85}[/tex]

[tex]Z = 1.165[/tex]

[tex]Z = 1.165[/tex] has a p-value of 0.878.

1 - 0.878 = 0.122

0.122 = 12.2% probability that the student will have scored greater than 600 points on the quantitative section of the SATs.

Find the area of the shape
Help quick plss

Answers

Answer:

7.14 in²

Step-by-step explanation:

A = LW

A = 2 x 2 = 4

-----------------------------------------------------------------------------------------------------------------

A = 3.14r²

A = 3.14 (1²)

A = 3.14 (1)

A = 3.14

-----------------------------------------------------------------------------------------------------------------

3.14 + 4 = 7.14

Estadística: Luego de entrevistar a diez de los pasajeros que viajaba en el bus que chocó intempestivamente contra un poste, se concluyó que el chofer era inocente. Identifica la población, la muestra, variable y el tipo de variable.

Answers

Respuesta:

Población = Todos los pasajeros en el autobús

Muestra = los 10 pasajeros entrevistados

Variable = inocencia del conductor; por tanto es una variable cualitativa

Explicación paso a paso:

La población se refiere a todo el conjunto de observaciones que están relacionadas con un evento o experimento en particular. Aquí, todos los pasajeros del vehículo constituyen la población, ya que nuestra investigación se basa en el vehículo.

La muestra es un subconjunto de la población que generalmente se elige al azar de manera que sea representativa de la población.

La variable que pretendemos medir es si el conductor es inocente o no. Por lo tanto, llamamos a esto la variable medida. Debido a que la culpa o la inocencia no es numérica, se considera una variable cualitativa.

If there are 1,800 members in the gym, how many are men?

Answers

Answer:

1050

Step-by-step explanation:

Solve for x. The triangles in each pair are similar. Please explain!! I’m so confused

Answers

Answer:

[tex]x = 5[/tex]

Step-by-step explanation:

Given

[tex]\triangle JDC[/tex] similar to [tex]\triangle JKL[/tex]

Required

Find x

To do this, we make use of the following equivalent ratios

[tex]JK:JL = JD:JC[/tex]

This gives

[tex]98 : 63 = 7x + 7:27[/tex]

Express as fraction

[tex]\frac{98 }{ 63} =\frac{ 7x + 7}{27}[/tex]

Multiply both sides by 27

[tex]27 * \frac{98 }{ 63} =\frac{ 7x + 7}{27} * 27[/tex]

[tex]27 * \frac{98 }{ 63} =7x + 7[/tex]

[tex]3* \frac{98 }{ 7} =7x + 7[/tex]

[tex]3* 14 =7x + 7[/tex]

[tex]42 =7x + 7[/tex]

Collect like terms

[tex]7x = 42 - 7[/tex]

[tex]7x = 35[/tex]

Divide both sides by 7

[tex]x = 5[/tex]

I WILL GIVE U BRAINLIEST AND THANKS AND 5 STARS
please help this is very important
this is a big part of my grade

Answers

Answer:

They are both wrong

Step-by-step explanation:

exponents are repeated multiplication. so it would be 2*2*2*2... that 28 times.

Please answer this question for me

Answers

I think the answer is par

Rebecca’s service charge at a beauty salon was $93.60, before tax. The sales tax rate was 8%. If she added 20% of the amount before tax as a tip, how much did she pay for the whole service at the salon?

Answers

Answer:

119.77

Step-by-step explanation:

93.60x.08=7.45 tax

93.60 x .20=18.72 tip

93.60+7.45+18.72=119.77

Cindy buys a boat for $15,000. This will be a simple interest
loan at 5.5% for 10 years. What is the interest on the loan?

Answers

Answer:

$8,250

Step-by-step explanation:

I = prt

I = ($15,000)(0.055)(10)

I = $8,250

The interest on the loan is $8250.00

The formula for determining simple interest is : loan amount x time x interest rate

Loan is the amount of money that Cindy borrowed. It is $15,000

interest rate = 5.5%

Time is the length of period of the loan. This is 10 years

$15,000 X 0.055x 10 = $8250

To learn more about simple interest, please check: https://brainly.com/question/9352088?referrer=searchResults

Need help with the answer??

Answers

Answer:

answer is optioc c

Step-by-step explanation:

area of circular pizza=pie*diameter

=1/4*pie*d^2

=3.14/4*100

=314/4

=78.5

area of square pizza=l^2

=9^2

=81

therefore square pizza is bigger in area than circular pizza.

What is the smallest number that can be divided by 3,9,12 without a remainder

Answers

Answer:

36

Step-by-step explanation:

Factor each into prime numbers

3 = 3

9 = 3 * 3

12 = 2 * 2 * 3

least common multiple

product of greatest number of different primes in any of the numbers

3 * 3 * 2 * 2

36

Answer:

LCM = 36

Step-by-step explanation:

Basically you want to find LCM which is the Least Common Multiple. This is the process of coming up with the smallest positive multiple that is common to two or more numbers.

Look up how to solve using cake ladder method. Basically you are going to list all numbers and use the same number to divide them in whole number without remainder. You do this until you encounter a point where you cannot further divide without remainder. Then you multiply the left most column and last row.

I have listed the process below and answer is 36 (multiply the left most column and last row. )

What is the missing side length in the triangle below?

Answers

Answer:

Step-by-step explanation:

pythagoras theorem

a^2+b^2=c^2

21^2+b^2=29^2

441+b^2=841

b^2=841-441

b^2=400

b=[tex]\sqrt{400[/tex]

b=20

therefore the length of a missing side is 20.

Answer:

20

Step-by-step explanation:

Use Pythagorean theorem. A^2+B^2=C^2

29 is the hypotenuse.

21^2+x^2=29^2

x=20

Solve equation using addition of equality x-2=25 simplify as a integer or fraction

Answers

Answer:

x=27

Step-by-step explanation:

1. x-2=25 so add 2 to both sides x=25+2

2. 25+2= 27 so, the answer is x=27 Can you make me Brainliest

Combine any like terms in the expression. If there are no like terms, rewrite the expression.
4x+x–2x

Answers

Answer:

2x+x

Step-by-step explanation:

PLWASE HELP WILL MARK BRAINLIST

Answers

Answer:

16 in

Step-by-step explanation:

Because you multiply 4in by 3in and you get 12 in. and you subtract 3in by 1in to get the height for the smaller box and you get 2in so multiply 2in by 2in to get 4in and add your products to 12in and 4 in to get 16 in!

Hope this helps!

Help plz ! find the measure of the central angle of an arc with length 5pi units and radius of 4.5 units

Answers

Answer:

Angle of Arc θ = 200°

Step-by-step explanation:

Given:

Length of arc = 5π

Radius of circle = 4.5 unit

Find:

Angle of Arc θ

Computation:

Using length of arc formula

Length of arc = [θ/360][2πr]

Putting value or length of arc and radius in given formula;

5π = [θ/360][(2)π(4.5)]

5π = [θ/360][9π]

5 = [θ/360][9]

5 =  [θ/40]

θ = 40 x 5

θ = 200

Angle of Arc θ = 200°

Solve the equation 8 - 12 = 20. S = ?​

Answers

Answer:

This is the answer that I got.

s= - 1/5

Step-by-step explanation:

see the steps below:)

What is the distance between points W
and X to the nearest hundredth?
AY
8
W
4
х
-8
-4
o
4
00
-4
-8
*
0 24
O 16.97
8.49
O 12

Answers

Answer:

Step-by-step explanation:

W=(-6,4)

X=(6,-8)

here, x1=-6 , y1=4 , x2=6 , y2=-8

use formula

[tex]\sqrt{)x2-x1)^2+(y2-y1)^2}[/tex]

[tex]\sqrt{(6+6)^2+(-8-4)^2}[/tex]

[tex]\sqrt{12^2+(-12)^2[/tex]

[tex]\sqrt{144+144[/tex]

[tex]\sqrt{288[/tex]

16.97

Brooke has finished the first three chapters of a new book. There are 28 pages in the first chapter, 33 pages in the second, and 18 pages in the third. Brooke works out that she has read 79 pages. Does that sound about right?

Answers

Answer: yes. They all add up to 79

Step-by-step explanation:

Answer

28+33+18= 79

Step-by-step explanation:

A bag contains four red marbles and eight
blue marbles. You randomly pick a marble and then pick a second marble without returning the marbles to the bag.Both marbles are red.

Answers

Answer:

B is most credible for this problem. :-D

Hi I am so happy that I have had to

Find the value of x in the figure at the right. Please help!

Answers

9514 1404 393

Answer:

  x° = 88°

Step-by-step explanation:

The sum of interior angles of a hexagon is 180°(6 -2) = 720°. The unknown angle is found by subtracting known angles from the total.

  x° = 720° -172° -120° -95° -120° -125°

  x° = 88°

Answer:

[tex]\large \sf {\underline{\underline{ \fcolorbox{j}{g}{x = 88 °}}}}[/tex]

Step-by-step explanation:

We know that

➟ The sum of interior angles of a hexagon is 180° × ( 6 - 2 ) = 720 °

Now add all the angles that are given in the question and subtract from the total angles and we get the unknown number .

let unknown number be x.

720 ° - 172 ° + 120 ° + 120 ° + 125 ° + 95 ° = x °

720 ° - 632 ° = x°

88 ° = x–––––––––☆––––––––––

2. Luego de entrevistar a diez de los pasajeros que viajaba en el bus que chocó intempestivamente contra un poste, se concluyó que el chofer era inocente. Identifica la población, la muestra, variable y el tipo de variable.

Answers

Respuesta:

Población = Todos los pasajeros en el autobús

Muestra = los 10 pasajeros entrevistados

Variable = inocencia del conductor; por tanto es una variable cualitativa

Explicación paso a paso:

La población se refiere a todo el conjunto de observaciones que están relacionadas con un evento o experimento en particular. Aquí, todos los pasajeros del vehículo constituyen la población, ya que nuestra investigación se basa en el vehículo.

La muestra es un subconjunto de la población que generalmente se elige al azar de manera que sea representativa de la población.

La variable que pretendemos medir es si el conductor es inocente o no. Por lo tanto, llamamos a esto la variable medida. Debido a que la culpa o la inocencia no es numérica, se considera una variable cualitativa.

Which company would cost the most to serve
300 students?
Click on the correct answer.
Company B
Company C
Company A

Answers

You need way more info man, there is nothing to go off of

Answer:

Company a

Step-by-step explanation:

I got it right on the test for plato <3

Maya and Zack built the tent below in their backyard how much material did they use to build the tent

Answers

Answer:

[tex]Area = 279ft^2[/tex]

Step-by-step explanation:

Given

See attachment for tent

Required

The material needed

This implies that we calculate the surface area of the tent.

This is calculated as:

Area = 2 * Area of Congruent triangles + 2 * Area of Congruent Rectangles + Area of Base Rectangle

So, we have:

[tex]Area = 2 * \frac{1}{2} * 6 * 8 + 2 * 10.5 * 7 + 10.5 * 8[/tex]

[tex]Area = 48 + 147 + 84[/tex]

[tex]Area = 279ft^2[/tex]

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