PLEASE HELP!!! Pleaseee!

PLEASE HELP!!! Pleaseee!

Answers

Answer 1

Answer:

a

Step-by-step explanation:


Related Questions

What is 8/2(2+2). I hear so many answers that it’s 16 or 1. Which one is right?

Answers

Answer:

1

Step-by-step explanation:

WILL GIVE BRAINLIST NO LINKS Ursula has 3 line segments that are the same size. What kind of triangle can she make?

A. equilateral triangle
B. isosceles triangle
C. scalene triangle
D. right triangle

Answers

Answer:

Equilateral triangle

Step-by-step explanation:

Equalateral triangles has 3 60 degre angles, and 3 congruent sides

Which best explains whether or not Δabc ≅ Δlmn?.

Answers

Because a 270° rotation around the origin and a subsequent reflection over the x-axis translate ABC onto LMN, the figures are congruent.

What is congruency?

Two figures are said to be "congruent" if they can be positioned perfectly over one another. Both of the bread slices are the same size and shape when stacked one on top of the other. Congruent refers to things that are exactly the same size and form. Congruent refers to something that is "absolutely equal" in terms of size and form. The shapes hold true regardless of how we rotate, flip, or turn them. Draw two circles with the same radius, for instance, cut them out, then stack them on top of one another. In geometry, two figures or objects are said to be congruent if their shapes and sizes match, or if one is the mirror image of the other.

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determine the interval in which solutions are sure to exist. y′′′ ty'' t^2y'=ln(t)

Answers

Therefore, the interval in which solutions are sure to exist is (0, ∞).

To determine the interval in which solutions are sure to exist for the given differential equation, we need to consider any restrictions or limitations imposed by the equation itself.

In this case, the given differential equation is:

y′′′ ty'' t^2y'=ln(t)

The equation involves logarithm function ln(t), which is not defined for t ≤ 0. Therefore, the interval in which solutions are sure to exist is t > 0.

In other words, solutions to the given differential equation can be found for values of t that are strictly greater than 0.

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what are the solutions tolog3x log3(x2 2) = 1 2log3x?x = –2x = –1x = 1x = 2there is no true solution.

Answers

To determine the solutions x⁵ + 2x³ = 3, you can use numerical methods or approximation techniques to estimate the values of x that satisfy the equation.

Let's solve the equation step by step to find the solutions.

Starting with the given equation:

log₃(x) + log₃(x² + 2) = 1 - 2log₃(x)

Now, let's simplify the equation using logarithmic properties. The sum of logarithms is equal to the logarithm of the product, and the difference of logarithms is equal to the logarithm of the quotient:

log₃(x(x² + 2)) = 1 - log₃(x²)

Next, we can simplify further by using the properties of exponents. The logarithmic equation can be rewritten in exponential form as:

(\(3^{(log3(x(x^{2} +2)))} = 3^{(1-log3((x^{2}))}\)

The base of the logarithm and the exponent cancel each other out, resulting in:

x(x² + 2) = \(3^{(1-log3(x^{2}))}\)

Now, let's simplify the right-hand side by applying the power rule of logarithms:

x(x² + 2) = 3 / \(3^{(log3(x^{2} ))}\)

Since  \(3^{(log3(x^{2} ))}\)       is equal to x² by the definition of logarithms, the equation becomes:

x(x² + 2) = 3 / x²

Expanding the left-hand side:

x³ + 2x = 3 / x²

Multiplying through by x² to eliminate the fraction:

x⁵ + 2x³ = 3

This is a quadratic equation, which does not have a general algebraic solution that can be expressed in terms of radicals. Therefore, it is challenging to find the exact solutions analytically.

To determine the solutions, you can use numerical methods or approximation techniques to estimate the values of x that satisfy the equation.

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Find each of the indicated Taylor polynomials for f(x) = sin(x) based at b = 0.
T3(x)= T4(x)= T5(x)= T6(x)=

Answers

The coefficients are calculated by taking the derivatives of sin(x) at b = 0, which is the base point. The 3rd order Taylor polynomial is the 0th, 1st and 2nd derivatives, the 4th order Taylor polynomial is the 0th, 1st, 2nd and 3rd derivatives, and so on.

T3(x) = sin(x) - x^3/6

T4(x) = sin(x) - x^3/6 + x^5/120

T5(x) = sin(x) - x^3/6 + x^5/120 - x^7/5040

T6(x) = sin(x) - x^3/6 + x^5/120 - x^7/5040 + x^9/362880

We will use the formula for the Taylor polynomial of degree n:

Tn(x) = f(b) + f'(b)(x-b) + f''(b)(x-b)^2/2! + f'''(b)(x-b)^3/3! + ...+ f^(n)(b)(x-b)^n/n!

Since b = 0, we have:

T3(x) = sin(0) + sin'(0)(x-0) + sin''(0)(x-0)^2/2!

     = 0 + 1(x-0) + (-1)(x-0)^2/2!

     = 0 + x - x^3/6

     = sin(x) - x^3/6

T4(x) = sin(0) + sin'(0)(x-0) + sin''(0)(x-0)^2/2! + sin'''(0)(x-0)^3/3!

     = 0 + 1(x-0) + (-1)(x-0)^2/2! + (-1)(x-0)^3/3!

     = 0 + x - x^3/6 + x^5/120

     = sin(x) - x^3/6 + x^5/120

T5(x) = sin(x) - x^3/6 + x^5/120 - x^7/5040

     = 0 + 1(x-0) + (-1)(x-0)^2/2! + (-1)(x-0)^3/3! + 1(x-0)^4/4!

     = 0 + x - x^3/6 + x^5/120 - x^7/5040

     = sin(x) - x^3/6 + x^5/120 - x^7/5040

T6(x) = sin(x) - x^3/6 + x^5/120 - x^7/5040 + x^9/362880

     = 0 + 1(x-0) + (-1)(x-0)^2/2! + (-1)(x-0)^3/3! + 1(x-0)^4/4! + (-1)(x-0)^5/5!

     = 0 + x - x^3/6 + x^5/120 - x^7/5040 + x^9/362880

     = sin(x) - x^3/6 + x^5/120 - x^7/5040 + x^9/362880

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Please Help!
Drag each label to the correct location on the equation. Not all labels will be used.
Picture is linked below.

Please Help!Drag each label to the correct location on the equation. Not all labels will be used.Picture

Answers

After answering the given query, we can state that Expression: A group variable of words, divided by signs for addition or subtraction.

What is a Variable?

In the context of a mathematical idea or experiment, a variable is something that can be altered. Frequently, a single symbol is used to symbolize a variable. Variables are frequently represented by the letters x, y, and z as abstract symbols. A wide variety of values can be assigned to characteristics known as variables. These factors include, among others, your size, age, wealth, place of birth, scholastic standing, and type of residence. Both numerical and categorical methods can be used to divide variables into two primary groups.

Here are where the labels should be placed based on the illustration:

Coefficient, label one

2nd label: variable

Label 4: the equals symbol Label 3: constant

5th label: term

Expression 6th label

The definition of each term is broken down as follows:

A integer multiplied by a variable in a term of an algebraic expression is referred to as a coefficient.

Variable: A symbol for a quantity that is subject to shift or variation.

A fixed, unchanging number is referred to as a constant.

The equals sign: Shows that the expressions on the left and right are equivalent.

Term: A grouping of variables multiplied by a coefficient and denoted by addition or subtraction marks.

Expression: A group of words, divided by signs for addition or subtraction.

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Write an algebraic model based off this numerical model

Write an algebraic model based off this numerical model

Answers

Step-by-step explanation:

T0 = a³+4

T1 = a⁴x a¹ +4

T2= a³ + a³ + 4

T3= a⁴ + a⁴* a² + 4

T4= a⁴ + a⁴ x a¹ + 4

T5= a³ + a³ + a⁴+4

Answer:

hello,

Step-by-step explanation:

c(1)=5

c(2)=9

c(2)-c(1)=9-5=4

c(2)=9

c(3)=13

c(3)-c(2)=13-9=4

c(3)=13

c(4)=17

c(4)-c(3)=17-13=4

c(4)=17

c(5)=21

c(5)-c(4)=21-17=4

for n=1,2,...,k :

c(n+1)-c(n)=4 and c(n+1)=4*(n+1)+1=4n+5

c(1)=1

The mean height of a Clydesdale horse is 72 inches with a standard deviation of 1.2 inches. What is the probability that a Clydesdale is greater than 75 inches tall?

Answers

Answer:

0.0062

Step-by-step explanation:

Given that:

Mean (μ) = 72 inches, Standard deviation (σ) = 1.2 inches.

The z score is a measure in statistics is used to determine by how many standard deviation the raw score is above or below the mean. If the raw score is above the mean, the z score is positive and if the raw score is below the mean, the z score is negative.

The z score is given as:

\(z=\frac{x-\mu}{\sigma}\)

For Clydesdale is greater than 75 inches tall, x = 75 inches, the z score is:

\(z=\frac{x-\mu}{\sigma}=\frac{75-72}{1.2} =2.5\)

The probability that a Clydesdale is greater than 75 inches tall = P(X > 75) = P(Z > 2.5) = 1 - P(Z < 2.5) = 1 - 0.9938 = 0.0062 = 0.62%

The probability that a Clydesdale is greater than 75 inches tall is 0.62%

How do you convert raw score to LSAT?

Answers

Answer: The conversion of a raw score to a scaled LSAT score is a complex process that involves several steps. The Law School Admission Test (LSAT) is a standardized test used by law schools in the United States and Canada to assess applicants' critical thinking, reading comprehension, and analytical reasoning skills.

Here's a general overview of the process of converting a raw score to a scaled LSAT score:

- Raw score calculation: The raw score is the number of questions answered correctly on the LSAT. There is no penalty for incorrect answers, so it is in your best interest to answer every question, even if you are unsure of the correct answer.

- Equating: The LSAT is equated to account for differences in difficulty between test forms. This means that the raw scores of test-takers are adjusted so that the scaled scores are consistent across different test forms.

- Scaling: The raw scores are then scaled to a range of 120 to 180, with a median score of 150 and a standard deviation of 10. This scaling process allows for meaningful comparisons between test-takers, regardless of the difficulty of the specific test form they took.

It is important to note that the LSAT score is not based solely on the number of questions answered correctly, but also on the difficulty of the questions. This means that a high raw score on a particularly difficult test form may result in a lower scaled score than a lower raw score on a less difficult test form.

Step-by-step explanation:

The equation of line p is y=ax+b. Which of these could be the equation of line q?.

Answers

The equation of line p is y = ax + b then y = -2ax + b + 3 could be only the equation of line q out of the given options.

Therefore, the answer is C) y = -2ax + b + 3.

The equation of a line in slope-intercept form is y = mx + b, where m is the slope of the line and b is the y-intercept. So in case of line p, a is the slope and b is the y-intercept. Let equation of q by y = m'x + b'.

From the figure it is evident that line p has a positive slope while line q has a negative slope. So slope of q is negative of slope of line q multiplied by a positive constant, say c, then

m' = -2ac

From figure we can observe that y-intercept of p is 0 and q has a positive y-intercept, so

b' = b + k, k is a positive constant

So equation of q is y = -2acx + b + k, where c and k are positive constants. So only option C is of this format.

--The question is incomplete, answering to the question below--

"The equation of line p is y = ax + b. Which of these could be the equation of line q?

A. y = -2a(x + 3) + b

B. y = -2ax + b

C. y = -2ax + b + 3

D. y = -2ax + b - 3"

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The equation of line p is y=ax+b. Which of these could be the equation of line q?.

guys can u please help me out

guys can u please help me out

Answers

Answer:

\(-0.36a^5x^6b^6\)

Step-by-step explanation:

Ok first multiply the first two monomials:

\(-0.6a^3x^6b^3\)

Then multiply THAT with the OTHER monomial:

\(-0.36a^5x^6b^6\)

This should be the answer. Let me know if it's wrong.

If one point on a graph is (6,3) and the slope of the line is
5/3
find the y-intercept of the graph.

Answers

Answer:

Y-intercept: (0, -7)

Step-by-step explanation:

We Know

Point (6,3)

m = 5/3

Find the y-intercept of the graph.

To find the y-intercept, we need to put the numbers in the slope-intercept form and solve for the y-intercept.

y = mx + b

3 = (5/3) · 6 + b

3 = 10 + b

b = -7

So, the y-intercept of the graph is -7

What is the y-intercept of the quadratic function f(x) = (x-8)(x+3)

Answers

Answer:

-24

Step-by-step explanation:

To find the y intercept, plug x in as 0.

Answer:

-24

Step-by-step explanation:

Y intercept is where graph cuts the y axis and it satisfies x=0

So put x=0 in your equation

F(0)= -8 x 3

F(0)= -24

Therefore y-intercept= -24

a political candidate has asked you to conduct a poll to determine what percentage of people support her. if the candidate only wants a 4% margin of error at a 97.5% confidence level, what size of sample is needed?

Answers

To determine the required sample size for a political poll with a 4% margin of error and a 97.5% confidence level, a formula can be used. For this scenario, the sample size required would be approximately 862 respondents.

To calculate the sample size needed for a political poll with a 4% margin of error and a 97.5% confidence level, the following formula can be used:

n = (Z^2 * p * (1-p)) / E^2

Where:

n is the sample size

Z is the Z-score associated with the desired confidence level (in this case, it is 2.24)

p is the expected proportion of support for the candidate (this value is typically unknown, so a conservative estimate of 0.5 is often used to get the maximum sample size)

E is the margin of error

Plugging in the values for this scenario, we get:

n = (2.24^2 * 0.5 * (1-0.5)) / 0.04^2

n ≈ 862

Therefore, the required sample size for this political poll is approximately 862 respondents. This sample size would provide a margin of error of 4% at a 97.5% confidence level, meaning that there is a 97.5% chance that the true proportion of support for the candidate lies within the range of the survey results plus or minus the margin of error.

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1. A toy rocket is launched from a 4. 9 m high platform in such a way that its​ height, h​ (in meters), after t seconds is given by the equation h=−4. 9t2+33. 6t+4. 9. How long will it take for the rocket to hit the​ ground?


he toy rocket will hit the ground after approximately enter your response here seconds.


2. The length of a rectangle is 7 centimeters less than five times its width. Its area is 24 square centimeters. Find the dimensions of the rectangle.

The width is enter your response here cm.

Part 2

The length is enter your response here cm.


3. Jeff and Kirk can build a​ 75-ft retaining wall together in 10 hours. Because Jeff has more​ experience, he could build the wall by himself 1 hour quicker than Kirk. How long would it take Kirk​ (to the nearest​ minute) to build the wall by​ himself?

It will take Kirk approximately enter your response here hours enter your response here min to build the wall himself.

​(Round to the nearest minute as​ needed. )



4. On the last three physics exams a student scored 87​, 85​, and 91. What score must the student earn on the next exam to have an average of at least​ 90?


The student must score at least enter your response here​%

Answers

In the given question, the rocket will hit the ground in 7 seconds. The width of the rectangle is 3 cm. Kirk makes the wall in 5.5 hours. The student needs 97 marks.

The relation between the height and the time of the toy rocket has been given in the question as,

h = -4.9t²+33.6t + 4.9

where,

h= height of the rocket after getting launched

t= time after which the rocket has been launched

So, if we have to calculate how much time the rocket takes to reach the ground,

we have to take h=0 (at ground).

So, the equation becomes

0 = -4.9t²+33.6t + 4.9

Now, the roots of this equation will give the time at which the rocket will hit the ground.

So, after calculating we get

t = -0.1428 sec

or

t = 7 sec

since negative time is not possible,

the time at which the rocket will hit the ground is 7 seconds.

The length of the rectangle is = 5b-7 cm

Hence, the area is = b(5b-7) = 24

Hence, the width comes out to be = 3 cm

Kirk would be able to make the wall in 5.5 hours. This is because Jeff can make it one hour earlier than him i.e., K-1 hours. So, we get -

= (K-1) + K = 10

= 2K = 11

= K = 5.5 hours

The student already has 87 + 85 + 91 = 263 marks. He needs at least -

= (263 + x) / 4 = 90

= 97 marks

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Solve the equation. Check the solution.
8- 2x - 5- 13x = 6

Answers

Answer:

see below

Step-by-step explanation:

8- 2x - 5- 13x = 6

Combine like terms

-15x+3=6

Subtract 3 from each side

-15x+3-3=6-3

-15x = 3

Divide each side by -15

x = 3/-15

x = -1/5

Check

8 - 2(-1/5) -5 -13(-1/5) = 6

8 + 2/5 -5 +13/5 = 6

3 + 15/5 = 6

3+3=6

6=6

7. A gym is offering a deal to members. Customers can sign up by paying a
registration fee of $100 and $28 per month. The function that models this
situation is c(m) = 28m + 100, where m is the number of months and c(m) is
the cost of becoming a member.

Answers

Answer:

I dont know

Step-by-step explanation:

does the integral solution of depend on quantum number? explain why this result is consistent with plots of psi squared

Answers

Yes, the integral solution of the Schrödinger equation depends on the total quantum number.

This is because the total quantum number is related to the energy of the system, which affects the wavefunction. The wavefunction is a solution to the Schrödinger equation, which describes the probability of a particle's position.

Therefore, the integral solution of the Schrödinger equation depends on the quantum number, and it describes the probability of a particle's position.

This is consistent with plots of psi squared because the probability of a particle's position is directly related to the square of the wavefunction.

Therefore, as the quantum number increases, the probability of a particle's position increases as well, resulting in a higher psi squared value for the corresponding quantum number.

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The drama club was selecting which carnival booths to sponsor at the fall carnival from a list of nine. How many different ways can they choose three booths from a selection of nine? A 42 B 84 C 508 D 814

Answers

Answer:

Option B

Step-by-step explanation:

Here we have to apply " combination and permutation. " It is given that the drama club had to choose three booths from a selection of 9, considering the possible ways to choose so. This is a perfect example of combination. In nCr, n corresponds to 9, respectively r corresponds to 3.

\(\mathrm{n\:choose\:r},\\nCr=\frac{n!}{r!\left(n-r\right)!},\\\\\frac{9!}{3!\left(9-3\right)!} =\\\frac{9!}{3!\cdot \:6!} =\\\\\frac{9\cdot \:8\cdot \:7}{3!} =\\\frac{504}{6} =\\\\84\\\\Solution = Option B\)

Hope that helps!

Answer:

B. 84 is correct.

I did the quiz.

The drama club was selecting which carnival booths to sponsor at the fall carnival from a list of nine.

C Solve for x. 8x-4 60°​

C Solve for x. 8x-4 60

Answers

Answer:

8

Step-by-step explanation:

8x - 4 = 60

8x = 60 + 4

x = 64/8

x = 8

Derek decides that he needs $184,036.00 per year in retirement to cover his living expenses. Therefore, he wants to withdraw $184036.0 on each birthday from his 66th to his 90.00th. How much will he need in his retirement account on his 65th birthday? Assume a interest rate of 5.00%.

Derek plans to retire on his 65th birthday. However, he plans to work part-time until he turns 71.00. During these years of part-time work, he will neither make deposits to nor take withdrawals from his retirement account. Exactly one year after the day he turns 71.0 when he fully retires, he will wants to have $2,742,310.00 in his retirement account. He he will make contributions to his retirement account from his 26th birthday to his 65th birthday. To reach his goal, what must the contributions be? Assume a 5.00% interest rate.

Answers

Derek needs to make contributions of approximately $21,038.34 per year from his 26th birthday to his 65th birthday in order to accumulate $2,742,310.00 in his retirement account by the time he fully retires.

To determine the amount Derek needs in his retirement account on his 65th birthday, we can use the concept of present value. Since he plans to withdraw $184,036.00 per year, starting from his 66th birthday until his 90th, the cash flows can be treated as an annuity. The interest rate is 5.00%, and the time period is 25 years (from 66 to 90). Using the formula for the present value of an annuity, we can calculate the required amount. The formula is:

PV = PMT * (1 - \((1 + r)^(-n)\)) / r

where PV is the present value, PMT is the annual withdrawal amount, r is the interest rate per period, and n is the number of periods.

Plugging in the values, we get:

PV = $184,036.00 * (1 - \((1 + 0.05)^(-25)\)) / 0.05 ≈ $2,744,607.73

Therefore, Derek needs approximately $2,744,607.73 in his retirement account on his 65th birthday to cover his desired annual withdrawals.

Moving on to the second part, Derek plans to make contributions to his retirement account from his 26th birthday to his 65th birthday. To reach his goal of having $2,742,310.00 in his retirement account after fully retiring, we can calculate the necessary contributions using the formula for the future value of an ordinary annuity:

FV = PMT * \(((1 + r)^n\) - 1) / r

Rearranging the formula, we can solve for the required contributions (PMT):

PMT = FV * (r / (\(((1 + r)^n\) - 1))

Plugging in the values, we get:

PMT = $2,742,310.00 * (\(\frac{0.05} {((1+0.05)^{39}-1 )}\))≈ $21,038.34

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The difference of twice a number and 2 is -21

Answers

Answer:

2x-2= -21

Step-by-step explanation:

Answer:

-9.5

Step-by-step explanation:

We can create an equation to represent this, where \(n\) is the missing value.

\(2n - 2 = -21\)

Now we can solve for \(n\) by isolating it on one side of the equation.

Add 2 to both sides:

\(2n - 2 + 2 = -21+2\\\\2n = -19\)

Divide both sides by 2:

\(2n\div2 = -19\div2\\\\n = -9.5\)

Hope this helped!

find the volume pleaseee

find the volume pleaseee

Answers

=πr^2h

=π(5)^2*11

=25*11π

=275π yd^3

n a given year, there are 10 million unemployed workers and 120 million employed workers in an economy.

Answers

In a given year, an economy has 10 million unemployed workers and 120 million employed workers. This information provides a snapshot of the labor market and indicates the number of individuals who are currently without jobs and those who are employed.

The information states that in the given year, there are 10 million unemployed workers and 120 million employed workers in the economy. This data provides a measure of the labor market situation at a specific point in time.

Unemployed workers refer to individuals who are actively seeking employment but currently do not have a job. The number of unemployed workers can be an important indicator of the health of an economy and its ability to provide job opportunities.

Employed workers, on the other hand, represent individuals who have jobs and are currently working. The number of employed workers indicates the size of the workforce that is actively contributing to the economy through productive activities.

By knowing the number of unemployed and employed workers, policymakers, economists, and analysts can assess factors such as labor market conditions, unemployment rates, and workforce participation rates. This information is crucial for formulating policies, understanding economic dynamics, and monitoring the overall health and functioning of the economy.

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Jordan has a garden that is enclosed by a rectangular fence. The perimeter of the garden is 84 feet. The length of one side of fencing is 8 yards. What is the area of Jordan's garden?

Answers

Answer:

504 ft

Step-by-step explanation:

Perimeter = 2(width) + 2(length)

Convert yards to feet

1yard=3feet

8yards=?

8*3/1 = 24feet

84 = 2(w) + 2(24)

84 = 2w + 42

84 - 42 = 2w

42 = 2w

w = 21

Area = 1 * w

        = 21 * 24

        = 504 ft

The price of a new car was 12500 it is reduced to 11625 what is the percentage reduction.

Answers

The price of new car is reduced by $825 from the original price $12,500 which implies the price of car after reduction is $11,625 i.e

The percentage reduction is 7 .

Percentage is calculated by dividing the value by total value and then multiply with 100.

We have given that,

The price of a new car = $12,500

After the some reduction in price

then the price of car = $11,625

The reduction in total price of car = original price - price after reduction

= $12,500 - $11,625

= $875

Now, we have to calculate the reduction of price in percentage.

Using the percentage reduction formula,

P% = (original price - price after reduction )× 100 /original price

=> percentage reduction = ( 875/12500)×100

=> percentage reduction = 875/125 = 7

Hence, the reduction is 7% .

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Color
Number Sold
Blue
35
Black
21
Green
g
27
Red
The number of green shirts sold was
twice the number of black and red
shirts. Which equation represents this
situation?
F (21 +27) x 2 = 9
G (35 + 27) x 2 = 9
H (21 + 27) = 2 = 9
J (35 + 21) + 2 = 9

Answers

I thing it is F (21+27)x2=9

The inside diameter of a randomly selected piston ring is a random variable with mean value 10 cm and standard deviation 0.07 cm.
(a) If
X
is the sample mean diameter for a random sample of n = 16 rings, where is the sampling distribution of
X
centered and what is the standard deviation of the
X
distribution? (Enter your standard deviation to five decimal places.)
center cm
standard deviation cm
(b) Answer the questions posed in part (a) for a sample size of n = 64 rings. (Enter your standard deviation to five decimal places.)
center cm
standard deviation cm
(c) For which of the two random samples, the one of part (a) or the one of part (b), is
X
more likely to be within 0.01 cm of 10 cm? Explain your reasoning.
X
is more likely to be within 0.01 cm of 10 cm in sample (a) because of the increased variability with a smaller sample size.
X
is more likely to be within 0.01 cm of 10 cm in sample (b) because of the increased variability with a larger sample size.
X
is more likely to be within 0.01 cm of 10 cm in sample (b) because of the decreased variability with a larger sample size.
X
is more likely to be within 0.01 cm of 10 cm in sample (a) because of the decreased variability with a smaller sample size.

Answers

We are given that the inside diameter of a piston ring is a random variable with mean value 10 cm and standard deviation 0.07 cm.

We are asked to find the sampling distribution of the sample mean diameter for two different random samples of n=16 and n=64 piston rings, respectively, and to calculate the standard deviation of each sampling distribution.

The sampling distribution of the sample mean diameter is the distribution of all possible sample means that could be obtained from a given sample size n.

The central limit theorem tells us that for large enough sample sizes (typically n ≥ 30), the sampling distribution of the sample mean is approximately normal, regardless of the shape of the underlying population distribution.

The mean of the sampling distribution of the sample mean is equal to the population mean, and the standard deviation of the sampling distribution is equal to the population standard deviation divided by the square root of the sample size.

For the first random sample of n=16 piston rings, the center of the sampling distribution of the sample mean diameter is still 10 cm, as this is the population mean.

However, the standard deviation of the sampling distribution is equal to the population standard deviation of 0.07 cm divided by the square root of 16, which is 0.0175 cm. Therefore, the standard deviation of the sampling distribution of the sample mean diameter for the first random sample is 0.0175 cm.

For the second random sample of n=64 piston rings, the center of the sampling distribution of the sample mean diameter is still 10 cm, but the standard deviation of the sampling distribution is equal to the population standard deviation of 0.07 cm divided by the square root of 64, which is 0.00875 cm.

Therefore, the standard deviation of the sampling distribution of the sample mean diameter for the second random sample is 0.00875 cm.

Finally, we are asked which of the two random samples is more likely to have a sample mean diameter within 0.01 cm of 10 cm. Since the standard deviation of the sampling distribution of the sample mean decreases as the sample size increases, the second random sample of n=64 piston rings is more likely to have a sample mean diameter within 0.01 cm of 10 cm.

This is because the decreased variability of the sampling distribution means that the sample means are more tightly clustered around the population mean of 10 cm. Therefore, we can conclude that the second random sample is more precise than the first random sample.

In statistics, a random sample is a subset of a larger population that is selected in such a way that each member of the population has an equal chance of being included in the sample.

Random sampling is a crucial tool for drawing conclusions about a population based on a smaller subset of data. In this problem, we will explore the sampling distribution of the sample mean for two different random samples of piston rings.

To know mare about random sample refer here:

https://brainly.com/question/29852583#

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set up the integral that uses the method of disks/washers to find the volume v of the solid obtained by rotating the region bounded by the given curves about the specified lines.y=x2/3+3,y=3,x=6
About the line y=16.

Answers

\(\pi \int\limits^6_0 {\frac{26}{3} } \, x^{2} -\frac{1}{9} x^{4} dx\) is the integral that uses the method of disks/washers to find the volume v of the solid obtained by rotating the region bounded by the given curves about the specified lines.

A method for determining the volume of a solid of revolution of a solid-state material while integrating along an axis "parallel" to the axis of revolution is known as disc integration, also known as the disc method in integral calculus.

This technique stacks an endless number of discs with varied radii and minuscule thickness to produce the final three-dimensional form. To create hollow solids of revolutions, the same ideas may also be applied when using rings in place of discs (this is known as the "washer technique").

As opposed to this, shell integration integrates along an axis that is parallel to the axis of revolution. The solution can be seen in the attached images below.

Here is another question with an answer similar to this about disc method: https://brainly.com/question/27338580

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set up the integral that uses the method of disks/washers to find the volume v of the solid obtained
set up the integral that uses the method of disks/washers to find the volume v of the solid obtained
set up the integral that uses the method of disks/washers to find the volume v of the solid obtained
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