A circular path 2feet wide has an inner diameter of 550 feet . How much farther is it around the outer edge of the path than around the inner edge?

Answers

Answer 1

Answer:

[tex]L_c=12.56 \ \text{feet}[/tex]

Step-by-step explanation:

From the question we are told that

Width of circular path [tex]w_c=2 \ \text{feet}[/tex]

Inner Diameter [tex]d_{in}=550 \ \text{feet}[/tex]

Outer diameter [tex]d_{out}=550+2\times2[/tex]  (inner diameter +  2 circular path width)

[tex]d_{out}=550+4[/tex]

[tex]d_{out}=554 \ \text{feet}[/tex]

Generally the equation for inner circumference of the circle  is mathematically given by

[tex]C_1=\pi d_{in}[/tex]

[tex]C_1=3.14\times550[/tex]

[tex]C_1=1727 \ \text{feet}[/tex]

Generally the equation for outer circumference of the circle  is mathematically given by

[tex]C_2=\pi d_{out}[/tex]

[tex]C_2=3.14\times554[/tex]

[tex]C_2=1739.56 \ \text{feet}[/tex]

Generally the difference in length of the two circumference  is mathematically given by

[tex]L_c=C_2-C_1[/tex]

[tex]L_c=1739.56-1727[/tex]

[tex]L_c=12.56 \ \text{feet}[/tex]


Related Questions

Find the distance between the two equations (see photo)

Answers

Answer:

z^138 and z^×2183 is the answer

The table and corresponding frequency polygon show information about the heights of members of a swimming club. What fraction of members were between 150 and 160 cm tall? Frequency < Back to task น 151 10- 5- 0+ 120 130 140 150 Height (cm) Search 160 Watch video 170 Height (cm) Midpoint 120< x≤130 125 130< x≤140 135 140< x≤150 145 150 160 155 160 < x≤160 165 Answer >​

Answers

To find the fraction of members between 150 and 160 cm tall, we need to look at the portion of the frequency polygon that corresponds to this height range.

First, we can calculate the total frequency of members between 150 and 160 cm by adding up the frequencies for the "150 < x ≤ 160" class and the "160 < x ≤ 170" class, which gives:

Total frequency = 5 + 0 = 5

Next, we can calculate the total frequency of all members by adding up all the frequencies, which gives:

Total frequency = 10 + 5 + 0 + 1 = 16

Therefore, the fraction of members between 150 and 160 cm tall is:

Fraction = Total frequency between 150 and 160 cm / Total frequency of all members

= 5 / 16

= 0.3125

So, approximately 31.25% of the members were between 150 and 160 cm tall.

Final answer:

The fraction of members between 150-160cm is found by dividing the frequency of the 150-160cm height segment by the total number of club members.

Explanation:

In order to find out the fraction of members who were between 150 and 160 cm tall, we first need to focus on the corresponding frequency value for the height segment - 150< x ≤160 in the table. This value gives us the count of people who stand within these heights. Simultaneously, we need the total number of club members, which can be derived by adding all the frequency values together.

Once we have these two values, the fraction of members is calculated by dividing the frequency of the 150-160 height segment by the total frequency (number of club members).

Please note that this fraction will be a 'raw' one, and you may need to simplify it to its smallest terms to make it more understandable.

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The figure is a model of water tank made up of a cylinder and a hemisphere. height 8 m and diameter 6 m .What is the total cost of fulfill the water in the given water tank at the rate of 25 paisa per liter and coloring the tank at the rate Rs.50 per square meter?)​

Answers

Answer:

I don't know what I am so sorry of computer science ranking it was my father is the first t e and video editing software for product of a number of times I am using simple terms of.

Step-by-step explanation:

NBG the main function performance multiplication ❌❌✖️of computer is used in planes and engineer salary is Atlantic chatter in short note of computer is the first man made calculating pH balance of computer is referred to earn foreign currency of computer is the first.bcdujvfyhcdybcMake it shortAn expression equivalent to 5(Z+2)5(Z+2)Make it shortAn expression equivalent to 5(Z+2)5(Z+2)Make it shortAn expression equivalent to 5(Z+2)5(Z+2)Make it short5(Z+2)Make it shortAn expression equivalent to 5(Z+2)An expression equivalent to 5(Z+2)5(Z+2)An expression equivalent to 5(Z+2)An expression equivalent to 5(Z+2)An expression equivalent to 5(Z+2)An expression equivalent to 5(Z+2)An expression equivalent to 5(Z+2)An expression equivalent to 5(Z+2)An expression equivalent to 5(Z+2)An expression equivalent to 5(Z+2)An expression equivalent to 5(Z+2)Make it short5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)5(Z+2)An expression equivalent to 5(Z+2)An expression equivalent to 5(Z+2)5(Z+2)An expression equivalent to 5(Z+2)5(Z+2)5(Z+2)An expression equivalent to 5(Z+2)An expression equivalent to 5(Z+2)cfgjmbvdzbcs of computer your favourite game of thrones on water into direct express debit card ♦️ of the products produced by

100 POINTS PLEASEE HELP BRAINLIEST

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The characteristic that is representative of a FUSION reaction is: B. The reaction happens predominantly in stars, like our sun.

What is reaction?

A reaction is a process that involves the transformation of one or more substances into new substances with different physical and/or chemical properties. Reactions can be classified as either physical or chemical depending on the nature of the change that occurs. In a physical reaction, the identity of the substances remains the same, but their physical properties, such as size, shape, or phase, may change. Examples of physical reactions include melting, freezing, boiling, and condensation.

Here,

Fusion reactions involve the joining together of two atomic nuclei to form a heavier nucleus, releasing a large amount of energy in the process. These reactions occur naturally in stars, including our sun, where the high temperatures and pressures allow the atomic nuclei to overcome their mutual repulsion and come close enough to fuse. While scientists are working on developing fusion reactors for use on Earth, the technology is still in the experimental stage and is not yet cost-effective for widespread use. However, fusion reactions do not produce long-lasting radioactive waste as in the case of nuclear fission reactions.

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Question 5: Let U= (a, b, c, d, e, f, g, h) A=(a, b, c, e, h} B= {c, e, g), and C = {a, c, d, g, e} Find each set. a) B' b) AN B' c) (A/B) d) BU (CNA)​

Answers

a) B', complement of B =  {a, b, d, f, h}

b) AN B', A intersection B' =  {b, h}

c) (A/B), or A - B = {a, b, h}

d) BU (CNA)​, B union (C intersection A) = {a, b, c, d, e, g, h}

Set problem

a) The complement of B, denoted B', consists of all elements in U that are not in B. Thus, we have:

B' = {a, b, d, f, h}

b) A intersection B' consists of all elements that are in A but not in B. From the given sets, we have:

B' = {a, b, d, f, h}

A = {a, b, c, e, h}

Thus, A intersection B' = {b, h}

c) A/B, also denoted A - B, consists of all elements in A that are not in B. From the given sets, we have:

A = {a, b, c, e, h}

B = {c, e, g}

Thus, A/B = {a, b, h}

d) CNA is the union of C and A. From the given sets, we have:

A = {a, b, c, e, h}

C = {a, c, d, g, e}

Thus, A union C = {a, b, c, d, e, g, h}.

Finally, BU(A union C) is the union of B with A union C. From the given sets, we have:

B = {c, e, g}

A union C = {a, b, c, d, e, g, h}

Thus, BU(A union C) = {a, b, c, d, e, g, h}

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This figure is made up of a rectangle and parallelogram. What is the area of this figure? Enter your answer in the box. Do not round any side lengths. units² Coordinate plane with axes labeled x and y. A closed figure is formed by a parallelogram and rectangle. The vertices are negative 10 comma 2, negative 7 comma 3, negative 1 comma 3, 1 comma negative 3, negative 2 comma negative 4, and negative 4 comma 2.

Answers

Answer:

To find the area of the figure, we need to find the area of the rectangle and the area of the parallelogram, and then add them together.

First, we need to identify which sides of the figure belong to the rectangle and which sides belong to the parallelogram. Looking at the coordinates of the vertices, we can see that the vertices (-10,2), (-7,3), (-1,3), and (1,-3) form a parallelogram, while the vertices (-7,3), (-2,-4), and (-4,2) form a rectangle.

To find the area of the parallelogram, we can use the formula:

Area = base × height

where the base is the length of one of the sides of the parallelogram, and the height is the perpendicular distance between the base and the opposite side. We can choose any side of the parallelogram as the base, but it is usually easiest to choose the side that is perpendicular to the x-axis, since its length is simply the difference between the x-coordinates of the two endpoints.

Using the coordinates (-10,2) and (-7,3) as the endpoints of the base, we find that the length of the base is:

|-7 - (-10)| = 3

To find the height, we need to find the perpendicular distance between the base and the opposite side of the parallelogram. We can do this by drawing a vertical line from one endpoint of the base to the opposite side, and then measuring the length of this line. We can see that the line from (-10,2) to (-1,3) is perpendicular to the base, so its length is the height of the parallelogram:

|-1 - (-10)| = 9

Therefore, the area of the parallelogram is:

Area = base × height = 3 × 9 = 27

To find the area of the rectangle, we simply need to multiply the length and width of the rectangle. We can see that the length is the distance between (-7,3) and (-4,2):

|-4 - (-7)| = 3

and the width is the distance between (-7,3) and (-2,-4):

|(-2) - (-7)| = 5

Therefore, the area of the rectangle is:

Area = length × width = 3 × 5 = 15

Finally, we can find the area of the whole figure by adding the area of the rectangle and the area of the parallelogram:

Area of figure = Area of rectangle + Area of parallelogram

= 15 + 27

= 42

Therefore, the area of the figure is 42 square units.

Drag the tiles to the correct boxes to complete the pairs. Match the one-to-one functions with their inverse functions.

Answers

Using calculus, we can find the functions of the inverse functions as follows:

a. f(x) = x/5.

b. f(x) = ∛ 2x

c. f(x) = x - 10

d. f(x) = 2x/3 - 17

What do you mean by calculus?

One of the most crucial areas of mathematics that addresses ongoing change is known as calculus. Calculus is primarily built on the two ideas of derivatives and integrals. A function's integral measures the area under its curve, whereas a function's derivative measures its rate of change.

Whereas the integral adds together a function's discrete values over a range of values, the derivative explains the function at a particular point.

Here in the question,

The inverse of the functions is:

f(x) = x/5.

f(x) = ∛ 2x

f(x) = x - 10

f(x) = 2x/3 - 17

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Find the equation of the line that has a slope of -8 and a y-intercept of 2.

Answers

Answer: y= -8x +2

Step-by-step explanation:

y = mx + b

M is the slope

B is the y intercept

Statistics QUESTION can someone help

Answers

Answer:

Class Midpoint

Step-by-step explanation:

36.5 is the the class midpoint for ages 35-38. To obtain the class midpoint, you find the averages of the upper and lower class limit for a specific class. In this case, (35+38)/2 = 36.5

Data from an important new study showed that out of 100,000 people a total r? 8,700 reported that they could wiggle their ears and their nose at the same time. What would you say is the probability of a person having this skill?

Answers

The probability of a person having this skill is estimated to be 87/1000 or 0.087.

What does a probability means?

Probability is a branch of mathematics that deals with determining the likelihood of an event occurring. The probability of an event occurring is equal to the number of favorable events divided by the total number of events. Probability has a value between 0 and 1, with 0 denoting uncertainty and 1 denoting certainty.

Based on the given conditions, we will formulate for 8,700/100,000 to get the probability of a person having this skill to wiggle their ears and their nose at the same time.

Let is cross out the common factor. Now we will have [tex]87/1000[/tex]. Therefore, the probability of a person having this skill is estimated to be [tex]87/1000[/tex] or [tex]0.087[/tex].

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2x³y, 8x²y², 17xy³

Need help solving

Answers

The cοndensed οr cοmbined fοrm is thus: 2x³y + 8x²y2 + 17xy³ = (2x²)xy + (8x)xy + (17xy²) = (2x2)xy + (8x)xy + (17xy²).

what is expressiοns ?

An expressiοn in mathematics is a set οf digits, symbοls, and οperatοrs that depicts a quantity οr a relatiοnship between twο quantities. Expressiοns can be straightfοrward, using a single number οr variable, οr cοmplicated, including a variety οf phrases and prοcedures. Expressiοns include things like "3 + 5" and "2x - 4", fοr instance.

The first phrase is straightfοrward and represents the additiοn οf twο numbers, whereas the secοnd expressiοn is mοre intricate and includes a variable, multiplicatiοn, and subtractiοn.

As the expressiοns yοu prοvided lack an equal sign and hence are nοt equatiοns, it is unclear what yοu mean when yοu say that yοu are "sοlving" the prοblem.

Hοwever if yοu wish tο cοmbine οr simplify these expressiοns, yοu can utilize the factοring apprοach.

We can factοr it οut because xy is a cοmmοn factοr thrοughοut the expressiοns:

8x²y² = (8x)xy, while 17xy³ = (17)xy²

We can nοw see that each expressiοn's remaining factοrs are (2x²), (8x), and (17), respectively.

Since these factοrs dο nοt share any cοmmοn factοrs, further simplificatiοn is nοt pοssible. In terms οf the cοmmοn factοr xy.

The cοndensed οr cοmbined fοrm is thus: 2x³y + 8x²y² + 17xy³ = (2x²)xy + (8x)xy + (17xy2) = (2x²)xy + (8x)xy + (17xy2).

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Complete Question

Write this expression  2x³y, 8x²y², 17xy³  in combined form

Lin’s father is paying for a 23.89$ meal. He has a 18% off coupon for the meal. After the discount, a 7% sales tax is applied. What does Lin’s father pay for the meal?
Help ASAP

Answers

Answer:

what you would do is 23.89x18%=4.3 so you do 23.89-4.3=19.59 then you do 19.59x7%=1.37 then you do 19.59+1.37=20.96 so 20.96 is your answer.

Step-by-step explanation:

Answer: To calculate the final price that Lin's father pays for the meal, we need to apply the discount first and then add the sales tax.

Discount = 18% of $23.89

= 0.18 x $23.89

= $4.30

The discounted price of the meal is therefore:

$23.89 - $4.30 = $19.59

Next, we need to add the sales tax of 7%:

Sales Tax = 7% of $19.59

= 0.07 x $19.59

= $1.37

Therefore, the final price that Lin's father pays for the meal is:

$19.59 + $1.37 = $20.96

So, Lin's father pays $20.96 for the meal after applying the discount and sales tax.

Step-by-step explanation:

Justin wants to join a health club. He is considering Let′s Get Moving, which charges a one-time initiation fee of $210 plus a $35 monthly membership fee. He is also considering Fitness for Life, which charges $50 per month with no initiation fee.

Answers

After answering the prοvided questiοn, we can state that Befοre making equatiοn a decisiοn, it is alsο impοrtant tο cοnsider οther factοrs such as the lοcatiοn, facilities, and services prοvided by each health club.

What is equatiοn?  

In mathematics, an equatiοn is a prοclamatiοn stating the justice οr twο phrases. An equatiοn is made up οf twο sides that are separated by an algebraic equatiοn (=). Fοr example, the argument "2x + 3 = 9" asserts that the statement "2x + 3" equals the value "9". The gοal οf equatiοn sοlving is tο determine the value οr values οf the variable in the mοdel) that will allοw the equatiοn tο be true. Equatiοns can be simple οr cοmplex, regular οr nοnlinear, and include οne οr mοre factοrs. In the equatiοn fοr "x² + 2x - 3 = 0," example, the variable x is raised tο the secοnd pοwer. Lines are used in many mathematical areas, including algebra, mathematics, οr geοmetry.

We can create a table tο calculate the tοtal cοsts οver different time periοds tο cοmpare the cοsts οf jοining Let's Get Mοving versus Fitness fοr Life:

Membership Length Let's Get Mοving Fitness fοr Life

1 mοnth                                    $245             $50

6 mοnths                                 $455              $300

1 year                                       $630              $600

2 years                                    $1,290            $1,200

Accοrding tο this table, if Justin plans tο jοin fοr a shοrt periοd οf time, such as a mοnth οr six mοnths, Fitness fοr Life is a better οptiοn because it has a lοwer tοtal cοst. If Justin intends tο jοin fοr a lοnger periοd οf time, such as a year οr twο years, Let's Get Mοving may be a better οptiοn because the οne-time initiatiοn fee is spread οut οver time.

Befοre making a decisiοn, it is alsο impοrtant tο cοnsider οther factοrs such as the lοcatiοn, facilities, and services prοvided by each health club.

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Solve using the table shown

Answers

Using the values in the table, we can see that the summation is equal ot -0.65

How to find the summation?

Here we want to find the summation:

[tex]\Sigma [x*P(x)][/tex]

This is equivalent to a expected value,  where we take the summations of the outcomes times the probability of each one.

So we take the value of x, and we multiply it by the value of P(x) that is in the same row and then we add all of these.

To do so, we just need to replace the values of the table, we will get:

[tex]\Sigma [x*P(x)] = -1*0.999 + 349*0.001\\ = -0.65[/tex]

That is the expected value.

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What is the local extrema/ absolute of the polynomial 10x^5 + 22x^4 + 20x^3 -0x^2 + 6?

Answers

o find the local extrema of the polynomial, we first take the derivative of the polynomial and set it equal to zero:

f(x) = 10x^5 + 22x^4 + 20x^3 - 0x^2 + 6

f'(x) = 50x^4 + 88x^3 + 60x^2

Setting f'(x) = 0, we can factor out a 2x^2 from the expression to get:

f'(x) = 2x^2(25x^2 + 44x + 30) = 0

Using the quadratic formula to solve for x, we get:

x = (-44 ± sqrt(44^2 - 4(25)(30))) / (2(25))

x = (-44 ± sqrt(784)) / 50

x = (-44 ± 28) / 50

x = -0.32 or -0.56

Manisha buys a television set with 13% VAT after allowing her 15% discount for 9605. what was the actual price of television set and amount of VAT?​

Answers

The actual price of the television set is 9225.6 and the amount of VAT is 1061.35

What is discount?

Discount is a percentage deducted from the the actual selling price of a product. The discount given is 15% of the selling price 9605.

Therefore, discount = 15/100 × 9605

= 1440.75

Therefore the price of the television= 9605 - 1440.75

= 8164.25

After the discount the, VAT of 13 % is added

= 8164.25 × 13/100

= 1061.35

The new price of the television set = 8164.25 + 1061.35

= 9225.6

therefore the actual price of the television set is 9225.6 and the VAT is 1061.35

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Life is full of equation solving. You probably don't even realize when you are solving equations.

Take, for instance, your cell phone plan. Your cell phone carrier charges you a flat rate of $60 a month for unlimited talk/text and 4 GB of data. You are charged $5 for every GB you go over. If one month you use 7 GB, how much did you spend? Thought question: If this pattern continues, should you think about switching to the 10 GB plan for $80?

Answers

You spent $75 for the month when you used 7 GB of data. It would be worthwhile to upgrade to the 10 GB plan for $80 if you frequently exceed the 4 GB cap.

What is flat rate?

No matter how much of a good or service is used or consumed, a flat rate is a set amount that is charged. There are no extra fees or variable expenses; there is just one price that includes all related costs and fees. Utility bills, subscription services, and other recurring costs are frequently priced using flat rates. While they offer a predictable cost and can make budgeting and financial planning easier, they might be beneficial for clients who utilise a high volume of the product or service.

Given that, you are charged $5 for every GB you go over.

Here,

Extra data used = 7 GB - 4 GB = 3 GB

Cost of extra data = 3 GB x $5/GB = $15

Thus,

Total cost = $60 + $15 = $75

Hence, you spent $75 for the month when you used 7 GB of data.

It would be worthwhile to upgrade to the 10 GB plan for $80 if you frequently exceed the 4 GB cap. To decide which plan would be more affordable in the long run, you would need to evaluate the expenses of the two options and take into account your average monthly data use.

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Consider the line y = 5x - 3 Find the equation of the line that is parallel to this line and passes through the point (- 8, 2) Find the equation of the line that is perpendicular to this line and passes through the point (- 8, 2) Note that the ALEKS graphing calculator may be helpful in checking your answer

Answers

Answer:

First, we know the slopes of perpendicular lines are negative reciprocals of each other.  So, the negative reciprocal of -1 is 1.  This is the slope of our new line.  From here, we can use this new slope along with our given point to find the y-intercept (b) of our new equation:

y = mx + b

-4 = 1(-2) + b

-4 = -2 + b

-2 = b

The y-intercept of our new line is (0,-2).  Now, we can write our equation of the new line:

y = x - 2

please help asap I need the work for this too

Answers

Answer:

Step-by-step explanation:

cos

cos^-1(26/52)=?

?=30

PLEASE HELP ME ASNWER THIS DISCUSSION QUESTIONS!! 50 POINTS!!!!

Answers

Step-by-step explanation:

The statement does not make sense. A triangle cannot have two right angles as the sum of the three angles in a triangle is always 180 degrees. Two right angles would add up to 180 degrees, leaving no room for the third angle.

To determine the number of plants needed, first find the perimeter of the square flower bed by multiplying the length of one side by 4 (since there are four sides in a square). 8 x 4 = 32 feet. Then convert the spacing of 8 inches to feet by dividing by 12 (since there are 12 inches in a foot). 8 / 12 = 0.67 feet. Finally, divide the perimeter of the flower bed by the spacing of the plants to get the total number of plants needed. 32 / 0.67 = 47.76. Round up to the nearest whole number to get the final answer of 48 plants.

A square is a type of rectangle because it has four right angles and opposite sides that are parallel and congruent. A square is a type of rhombus because it has four sides of equal length. A square is a type of parallelogram because it has two pairs of opposite parallel sides. A square is a type of quadrilateral because it has four sides. A square is a type of polygon because it is a closed shape with three or more sides.

Find the measure of X

Answers

Answer:

≈25,99

Step-by-step explanation:

Use trigonometry:

sin (38∘) = 16 / x

x = 16 / sin (38∘) ≈ 25,99

Somebody can help me with this?

Answers

We can conclude after answering the presented question that x = $2.00 equation  (price of a queso pizza rebanada) y = $1.25 (price of a pie and championes pizza rebanada)

What is equation?

An equation in mathematics is a statement that states the equality of two expressions. An equation is made up of two sides that are separated by an algebraic equation (=). For example, the argument "2x + 3 = 9" asserts that the phrase "2x + 3" equals the number "9". The purpose of equation solving is to determine the value or readings of the variable(s) that will allow the equation to be true. Equations can be simple or complicated, regular or nonlinear, and include one or more elements. In the calculation "x2 + 2x - 3 = 0," for example, the variable x is raised to the second power. Lines are utilised in many different areas of mathematics, such as algebra, calculus, and geometry.

The two variables are the price of a rebanada de pizza de queso and the price of a rebanada de pizza de pia y championes.

It is x the price of a rebanada de pizza de queso and y the price of a rebanada de pizza de pia y championes.

We have the following equation system:

3x + 4y + 12.50 = 12.50 (costo de las 7 rebanadas de pizza) (costo de las 7 rebanadas de pizza)

3x + 2y = 8.50 (costo de las 5 rebanadas de pizza que no incluyen el tool) (costo de las 5 rebanadas de pizza que no incluyen el tool)

When we solve the equation system, we get:

x = $2.00 (price of a queso pizza rebanada) y = $1.25 (price of a pie and championes pizza rebanada)

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The probability of a number cube landing on 5 is 1/6. If a number cube is tossed 72 times, how many times can it be expected to land on 5?

Answers

We can expect the number cube to land on 5 about 12 times if it is tossed 72 times.

Three animals left 24 tracks in the mud. Half the tracks were made by either a dog or a fox. A deer made 4 tracks fewer than the dog and 4 tracks more than the fox. How many tracks did each animal leave?

Answers

The deer made 8 tracks, the fox made 4 tracks, and the dog made 12 tracks.

How to find the number of tracks each animal made

Let's start by defining variables for the number of tracks made by each animal.

Let:

d be the number of tracks made by the deer,

f be the number of tracks made by the fox, and

x be the number of tracks made by the dog

From the problem, we know that:

d + f + x = 24 ......(1)

We also know that:

d = x - 4   .......(2)

d = f + 4   ..........(3)

from this we can rightfully assume that the dog made half the tracks hence

x = 12 tracks

d = 12 - 4 = 8

solving for f

d = f + 4

f = d - 4 = 8 - 4 = 4

we can therefore say that the dog made 12 tracks, the deer made 8 tracks while the fox made 4 tracks

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The highway fuel economy of a 2016 lexus Rx 350 fwd 6-cylinder 3.5l automatic 5-speed using premium fuel is a normally distributed random variable with a mean of u=20.50mpg and a standard deviation of a=1.25mpg
Answer BOTH A and B URGENT

Answers

The standard error of the mean is 0.3125 mpg.

The sample mean will fall within the interval (19.9859, 20.0141)

What is a decimal?

A decimal is a number system that uses the base ten, which means it uses ten digits (0,1,2,3,4,5,6,7,8,9) to represent all numbers. Each digit in a decimal number represents a power of ten. For example, in the number 123.45, the digit "1" represents 1 x 10², the digit "2" represents 2 x 10¹, the digit "3" represents 3 x 10⁰, the digit "4" represents 4 x 10⁻¹, and the digit "5" represents 5 x 10⁻².

(a) The standard error of the mean (SE) can be calculated using the formula:

SE = s / √(n)

where s is the sample standard deviation, n is the sample size, and √ represents the square root. In this case, n = 16 and s = a = 1.25 mpg. Substituting these values, we get:

SE = 1.25 / √(16)

  = 0.3125

Rounding to 4 decimal places, the standard error of the mean is 0.3125 mpg.

(b) To find the interval within which we would expect the sample mean to fall with 90% probability, we need to use a confidence interval. Since the sample size is large enough (n >= 30) and the population standard deviation is known, we can use the z-distribution to construct a confidence interval. The z-value for a 90% confidence level is 1.645 (found using a standard normal distribution table or calculator).

The 90% confidence interval for the sample mean can be calculated using the formula:

CI = Xbar ± z*(SE)

where Xbar is the sample mean, z is the z-value for the desired confidence level, and SE is the standard error of the mean.

Substituting the given values, we get:

CI = 20.5 ± 1.645*(0.3125)

  = 20.5 ± 0.5141

Rounding to 4 decimal places, the 90% confidence interval for the sample mean is:

CI = (19.9859, 20.0141)

Therefore, we would expect the sample mean to fall within the interval (19.9859, 20.0141)

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five positive consecutive integers starting with a have an arithmetic mean of b. what is the arithmetic mean of 5 consecutive integers that start with b? (a) a 3 (b) a 4 (c) a 5 (d) a 6 (e) a 7

Answers

the arithmetic mean of the five consecutive integers starting with "b" is (a+4), which is option (c).

Let's call the five consecutive integers starting with "a" as a, a+1, a+2, a+3, and a+4.

The arithmetic mean of these five integers can be calculated as (a + (a+1) + (a+2) + (a+3) + (a+4))/5 = b. Simplifying this expression, we get:

5a + 10 = 5b +

a + 2 = b

So, the arithmetic mean of the five consecutive integers starting with "b" would be:

(b + (b+1) + (b+2) + (b+3) + (b+4))/5

= (5b + 10)/5 (since the integers are consecutive, we can express them in terms of b)

= b + 2

 

Substituting b = a + 2 (from the above equation), we get:

b + 2 = a + 4

Therefore, the arithmetic mean of the five consecutive integers starting with "b" is (a+4), which is option (c).

In other words, if the arithmetic mean of five consecutive integers starting with "a" is "b", then the arithmetic mean of five consecutive integers starting with "b" is two more than the last integer of the five consecutive integers starting with "a".

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Need to know what it is

Answers

Answer: There is no solution to the equation.

Triangle is reflected across the y-axis and then dilated by a factor of 1/2 centered at the origin. Which statement correctly describes the resulting image, triangle ? Image of right triangle ABC in a graph with vertices A (minus 4, minus 2), B (4, minus 2), and C (4, 4) A. Both the reflection and dilation preserve the side lengths and angles of triangle . B. Neither the reflection nor the dilation preserves the side lengths and angles of triangle . C. The reflection preserves the side lengths and angles of triangle . The dilation preserves angles but not side lengths. D. The dilation preserves the side lengths and angles of triangle . The reflection does not preserve side lengths and angles.

Answers

The dilatiοn preserves the side lengths and angles οf triangle. The reflectiοn dοes nοt preserve side lengths and angles.

What Is dilatiοn?

A geοmetrical adjustment that changes an οbject's size is dilatiοn. In mοre detail, dilatiοn entails extending οr cοntracting an item by increasing each pοint's distance frοm a fixed center pοint by a predetermined amοunt, knοwn as the scale factοr.

Let's start by applying the reflectiοn alοng the y-axis. All οf the vertices will have their x-cοοrdinates negated as a result, but their y-cοοrdinates will remain unchanged.

After reflectiοn, pοint A (-4, -2) will appear as A'. (4, -2). In the same way, B (-4, -2) will becοme B' (-4, -2), and C (4, -4) will change intο C'. (-4, 4).

Applying a dilatatiοn by a factοr οf 1/2 with the οrigin as the center will cοme next. This will result in a halving οf all distances frοm the οrigin.

After dilatiοn, pοint A' (4, -2)'s image will be A'' (2, -1), B' (-4, -2) will change tο B'' (-2, -1), and C' (-4, -4) will becοme C''. (-2, 2).

We must cοmpare the distances between the triangle's vertices and the angles' measurements in the οriginal triangle and the image tο see if the side lengths and angles are preserved.

The distance between pοints A and B is 8, but the distance between  A'' and B'' is 4, as we can see. Similarly, the separatiοn between B and C is 6, whereas between B'' and C'' is 3. The dilatiοn dοes nοt preserve the triangle's side lengths as a result.

Nevertheless, it is clear that the angles between the sides were kept because the transfοrmatiοn invοlved bοth a reflectiοn and a dilatatiοn, bοth οf which prοtect angles.

Therefοre the cοrrect οptiοn is D. The dilatiοn preserves the side lengths and angles οf the triangle, while the reflectiοn dοes nοt preserve side lengths and angles.

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can someone help me out, thanks

Answers

Answer:

[tex]16 {cm}^{3} [/tex]

Step-by-step explanation:

First, we can find the volume of tank A:

[tex]v(a) = 20 \times 24 \times 20 = 9600[/tex]

Now, let's write an equation for tank B's volume:

[tex]9600 = 600 \times h(b)[/tex]

[tex]h(b) = \frac{9600}{600} = 16[/tex]

©2023 Edmentum All rights reserved, (-2,2) (3,-1) (4,2) (4, -2) the coordinates of D' if polygon ABCD rotates 90° counterclockwise to create A'B'C'D' the coordinates of C" if polygon ABCD rotates 90° clockwise to create A"B"C"D" the coordinates of A" if X polygon ABCD rotates 180° clockwise to create ABCD the coordinates of B" if X polygon ABCD rotates 270° counterclockwise to create A"B"C"D" last two i got wrong info from here....showing in pictures ​

Answers

The coordinates after each rotation are given as follows:

D' after a 90º counterclockwise rotation: (-2,2).C' after a 90º clockwise rotation: (3,-1).B' after a 270º clockwise rotation: (4,2).A' after a 180º rotation: (4,-2).

What are the rotation rules?

The function rule for the five more known rotation rules are given as follows:

90° clockwise rotation: (x,y) -> (y,-x)90° counterclockwise rotation: (x,y) -> (-y,x)180° clockwise and counterclockwise rotation: (x, y) -> (-x,-y)270° clockwise rotation: (x,y) -> (-y,x)270° counterclockwise rotation: (x,y) -> (y,-x).

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