A sphere has a radius of 12 in. If the radius is divided by 3, what is the effect on the volume?

The volume is multiplied by 27.
The volume is multiplied by 9.
The volume is divided by 27.
The volume is divided by 9.

Answers

Answer 1

If the radius is divided by 3 then the volume is divided by 27. Then the correct option is C.

What is the volume of the sphere?

Let r be the radius of the sphere.

Then the volume of the sphere will be

V = 4/3 πr³

A sphere has a radius of 12 in.

If the radius is divided by 3.

Then the effect on the volume will be

If r is 12, then the volume is V₁.

And if r is 12/4, then the volume is V₂.

Then the ratio of the volumes will be

V₁ / V₂ = 4/3 π(12)³ / 4/3 π(12/3)³  

V₁ / V₂ = 3³

V₁ / V₂ = 27

If the radius is divided by 3 then the volume is divided by 27.

Then the correct option is C.

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Related Questions

what do ducks short necks help them to do? pls help :/

Answers

Answer:

In some circumstances these displays may allow the female to observe the performance of males and to evaluate them as potential mates. To elicit displays from a group of males, a female Mallard may swim with her neck outstretched and her head just above the water

Step-by-step explanation:

hope this helps

Edwin works at a fast-food restaurant. Every Tuesday, he helps unload a delivery truck. This
table shows how many boxes of hamburger buns and how many boxes of potatoes he
unloaded last Tuesday,
What is the weight of each box?

Edwin works at a fast-food restaurant. Every Tuesday, he helps unload a delivery truck. Thistable shows

Answers

Answer:

Each box of buns weighs 18 pounds and each box of potatoes weighs 35 pounds

Step-by-step explanation:

Let's say each bun box weighs b pounds and each potato box weighs p pounds. For each box of buns, we add b pounds. Therefore, for 40 boxes of buns, we add 40 * b pounds. Similarly, for 35 boxes of potatoes, we add 35 * p pounds.

For Tuesday, the total weight of the buns boxes is equal to 40 * b. The total weight of the potato boxes is equal to 35 * p. Adding these two together, we get the total weight of the boxes to be equal to

40 * b + 35 * p = 1945

For Friday, we can apply similar techniques to get

60 * b + 70 * p = 3530

We therefore have the two equations

40 * b + 35 * p = 1945

60 * b + 70 * p = 3530

One way to solve this would be to convert this into a matrix and use Guass-Jordan Elimination. With the amount of bun boxes representing the first column, the amount of potato boxes representing the second, and the total weight of each day representing the third, we have

\(\left[\begin{array}{ccc}40&35&1945\\60&70&3530\end{array}\right]\)

One thing that we can do here is multiply the first row by -2 and add it to the second. That way, there would be a 0 in the 2nd column in the 2nd row, making an equation of the form

something * b = something else, enabling us to solve for b.

We thus have

\(\left[\begin{array}{ccc}40&35&1945\\(-40*2+60)&(-35*2+70)&(-1945*2 +3530)\end{array}\right] = \left[\begin{array}{ccc}40&35&1945\\-20&0&-360\end{array}\right]\)

Therefore, we can say that

-20 * b = -360

divide both sides by 20 to isolate b

b = 18

Therefore, each box of bunds weighs 18 pounds. Plugging that into an equation, we have

40 * b + 35 * p = 1945

40 * 18 + 35 * p = 1945

720 + 35 * p = 1945

subtract 720 from both sides to isolate the p and its coefficient

1225 = 35 * p

divide both sides by 35 to isolate p

p = 35

Therefore, each box of potatoes weighs 35 pounds

______ can be thought of as the chi-square type equivalent to the paired t-test.

Answers

The McNemar's Test can be thought of as the chi-square type equivalent to the paired t-test.

The McNemar's Test is a non-parametric statistical method used to analyze the differences between paired or matched categorical data, such as repeated measurements on a single group. Like the paired t-test, which is used to compare continuous data, the McNemar's Test evaluates the changes in the proportions of success or failure between the paired observations.

This test is particularly useful when dealing with small sample sizes or when the assumptions of normality and homogeneity of variances required for the paired t-test are not met. By using the chi-square distribution, McNemar's Test provides a way to determine the significance of the differences between paired categorical data, while accounting for the dependency between the observations.

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Select the correct statement:

(this is only briefly mentioned in the video, if you have a difficult time finding it, or just want to make sure you answer is correct, you can find the answer in the book too)

Group of answer choices

Freud is not a stage theorist

Freud is a stage theorist

Answers

Freud is a stage theorist. Sigmund Freud, the renowned Austrian neurologist and psychoanalyst, is widely recognized as one of the pioneers in the field of psychoanalysis.

He proposed a developmental theory that included psychosexual stages of development. According to Freud, human development progresses through distinct stages, each characterized by a specific focus on different erogenous zones. These stages include the oral stage, stage, phallic stage, latency stage, and genital stage. Freud believed that the way individuals navigate these stages influences their personality and psychological well-being in adulthood.

Although Freud's stage theory has been critiqued and modified over time, his ideas regarding the importance of early childhood experiences and unconscious processes have had a profound impact on psychology and continue to shape our understanding of human development.

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3(8 - x) = 7x - 6
I need help

Answers

The answer to your question is 3

x = 3

I solved for x cause I wasn't exactly sure what you wanted.

can someone help me with this only if you know it’s algebra 2

can someone help me with this only if you know its algebra 2

Answers

Answer:

b) 33.75≤x≤34.25

Step-by-step explanation:

X could equal either 34.25 or 33.75 to give you exactly 0.25. Since the answer can be less than 0.25, it’s all numbers between 33.75 and 34.25, including those two numbers.  (That’s why the circles are filled in, unlike answer a).

.25 x .7 ] pleaseeeee i needddddd helppppppp!!!! NOWWWWW!!!!

.25 x .7 ] pleaseeeee i needddddd helppppppp!!!! NOWWWWW!!!!

Answers

Answer:

ANSWER-0.175

Step-by-step explanation:

.25 x .7 into calculator is 0.175


10Which best describes a system of equations that has infinite solutions?

Answers

Answer:

FOR CONNEXUS UNIT 3 LESSON 1 SOLVING SYSTEMS BY GRAPHING 1. C 2. A 3. A 4. A

Step-by-step explanation:

consider the following discrete probability distribution. x −10 0 10 20 p(x = x) 0.35 0.10 0.15 0.40 what is the probability that x is less than 5?

Answers

The probability that x is less than 5 = 0.45

Discrete probability distribution:

It is a type of probability distribution that displays all the possible values of a discrete random variable accompanying the affiliated probabilities. We can also say that a discrete probability distribution provides the chance of occurrence of every possible value of a discrete random variable.

Discrete probability distribution:

x          = -10      0       10        20

P(X=x) = 0.35  0.10   0.15     0.40

The probability that x is less than 5:

P(X<5) = 1 - P (X = 10) - P(X= 20)

1 - 0.15 - 0.40 = 0.45

The probability that x is less than 5 is = 0.45

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Chris earns $10.00 each time he washes his neighbor's car. The expression 10x represents
Chris' earnings. What does the variable in the expression represent?
Ono variable
O the number of times the neighbor drives the car
O the amount of money Chris earns per wash
O the number of times Chris washes the car

Answers

O the number of times Chris washer the car

Answer:

the number of times he washes the car

Step-by-step explanation:

help me i need to know

help me i need to know

Answers

49 is a rational one

Choose the best estimate for the division problem below
6.7 /0.6
A. 16
B. 15
C. 11

Answers

Answer:

11

Step-by-step explanation:

6.7 / .6

Multiply top and bottom by 10

67/6

66/6 = 11 so this is close to 11

the answer i believe is C which is 11

Step by step just divide man shouldnt be hard

which one doesn't belong?

which one doesn't belong?

Answers

Answer:

The answer is the bottom left because those lines are the only ones which are not parallel.

Answer: Top Right

Step-by-step explanation:

Because all of the lines are are parallel lines that face the right.

help me with this ques. (need solution and answer both) thanks so much <3

help me with this ques. (need solution and answer both) thanks so much &lt;3

Answers

Answer:

1.) 27a^11 + 18a^9 -72a^7

2.) 6p^4q^3 - 10p^3q + 4p^2q3

Step-by-step explanation:

1.) Distribute and do the math

-9a^5 x (-3a^6) - 9a^5 X (-2a^4) - 9a^5 x 8a^2

27a^11 + 18a^9 -72a^7

2.)  Distribute and do the math

2pq^2q x 3p^2q^2 - sp^2q x 5p + 2p^2q x 2q^2

6p^4q^3 - 10p^3q + 4p^2q3

What goes on the first blank tick mark?

What goes on the first blank tick mark?

Answers

Answer:

24

Step-by-step explanation:

The number line should read 18, 24, 30, 36, 42. There is a spacing of 6 units between each tick mark.

Good luck.

Hope this helps!

prove that if the numbers 6, 8, and 10 are each multiplied by the same natural number, the resulting numbers are pythagorean triple too.

Answers

If the numbers 6, 8, and 10 are each multiplied by the same natural number, the resulting numbers are Pythagorean triples as well.

To prove that if the numbers 6, 8, and 10 are each multiplied by the same natural number, the resulting numbers are Pythagorean triples, we need to show that the squared sum of the two smaller numbers is equal to the squared value of the largest number.

Let's assume the natural number multiplier is represented by 'n'.

We will multiply each of the given numbers by 'n' to obtain the new numbers: 6n, 8n, and 10n.

Now, let's calculate the squared sum of the two smaller numbers (6n and 8n) and compare it to the squared value of the largest number (10n).

Squared sum of the two smaller numbers:

(6n)^2 + (8n)^2 = 36n^2 + 64n^2 = 100n^2

Squared value of the largest number:

(10n)^2 = 100n^2

We can see that the squared sum of the two smaller numbers (36n^2 + 64n^2 = 100n^2) is equal to the squared value of the largest number (100n^2).

Therefore, the resulting numbers, 6n, 8n, and 10n, form a Pythagorean triple.

This result holds true for any natural number 'n'. Multiplying the numbers 6, 8, and 10 by the same natural number 'n' will always yield a Pythagorean triple.

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plss help urgent!!!!!!!!!!!!!!!!!!!!!!

plss help urgent!!!!!!!!!!!!!!!!!!!!!!

Answers

Answer:

Dud this pic is way too small+ you just told everyone what you do because of the bookmarks that you have on your screen, so my advice is to delete this post IMEDIENTLY!

Step-by-step explanation:

Use the distributive property to simplify: 9*28

Answers

Answer:

3.10

Step-by-step explanation:

HELP!!! need answers for these questions please. Thank You for anyone who solves atleast one of them!

HELP!!! need answers for these questions please. Thank You for anyone who solves atleast one of them!

Answers

5. 4/9 probability

Explanation; You would do (4/13)/(9/13) and that = 4/9.

5b. I don't really get it, it sounds like its asking the same thing.

I gotta go so i will finish later hopefully

GUYS PLEASE HELP ASAP

GUYS PLEASE HELP ASAP

Answers

Answer:

A

Step-by-step explanation:

When each input value has one and only one output value, that relation is a function.

Identify the area of the figure rounded to the nearest tenth

Identify the area of the figure rounded to the nearest tenth

Answers

Answer:

118.7 inches squared.

Step-by-step explanation:

What is the area?

The area is the total space taken up by a flat (2-D) surface or shape. The area is always measured in square units.

What is diameter?

Diameter is the length across the entire circle, the line splitting the circle into two identical semicircles.

The expression for solving the area of a circle is A = π × \(r^{2}\).

To solve for the semicircle above, we can divide the diameter into 2 to get the radius.

12 ÷ 2 = 6

So, the radius of the upper semicircle is 6 inches.

If the radius of a circle is 6 inches, then you can substitute r for 6 into the formula.

A = π × \(6^{2}\)

This simplifies to A = 36π. If a semicircle if half the size of a normal circle, then it will be A = 18π, because 36 ÷ 2 = 18.

To solve for the lower semicircle, we can do the same this as we did above.

A = π × \(r^{2}\)

But wait, we don't know the radius or diameter!

No worries! To solve for the diameter of the circle, we can take the line that is parallel to the semicircle (the one that has a length of 12in) and subtract 6 from it. We subtract 6 from it because the semicircle takes up the remaining length of the line, not including the 6in.

To solve for the lower semicircle, we can divide the diameter by 2 to get the radius.

6 ÷ 2 = 3

So, the radius of the circle is 3.

Now we can insert 3 into the expression.

A = π × \(3^{2}\)

This simplifies to A = 9π. If a semicircle if half the size of a normal circle, then it will be A = 4.5π because like above, 9 ÷ 2 = 4.5.

Adding the two semicircles together:

18π + 4.5π = 22.5π22.5 × π ≈ 70.6858

So, the area of both semicircles is approximately 70.6858 square inches.

To solve for the area of a rectangle we use the expression:

A = length × width

Inserting the dimensions of the rectangle:

8 × 6 = 48

So, the area of the rectangle is 48 square inches.

Adding the two areas together:

70.6858 + 48 = 118.6858 ≈ 118.7

Therefore, the area of the entire figure, rounded to the nearest tenth is \(118.7\) \(in^{2}\).

what is this answer ​

what is this answer

Answers

Answer:

a

Step-by-step explanation:

the unit rate is 10 whcih is higher then everyone elses

The city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was the average of 81, 93, and 65, which is 79.7. Of course, that is incorrect. What is the mean score for all ninth graders in the city

Answers

Thee correct mean score for all the ninth graders in the city is 52.76.

Given that the city's PR manager, who never took statistics, claimed the mean score of all ninth graders in the city was the average of 81, 93, and 65, which is 79.7.

We need to calculate the correct mean score for all ninth graders in the city.

Mean score: It is the average of all the values in a dataset.

It is calculated by dividing the sum of the values by the total number of values.

To calculate the mean score for all ninth graders in the city, let us assume that there are n ninth graders in the city. Then, the sum of scores of all the ninth graders will be:

n + (n+1) + (n+2) + ....... + (n+7) = 9n + 28

Here, the number of terms is 8 since there are 8 scores (as given in the problem statement).

And the correct mean score of all ninth graders will be the sum of scores divided by the total number of ninth graders in the city. Therefore, mean score will be:

(81 + 93 + 65 + n + (n+1) + (n+2) + ....... + (n+7))/(8 + n)

= (9n + 308)/ (n + 8)

Now, we know that the incorrect mean score as claimed by the city's PR manager is 79.7.

Hence, the correct mean score can be equated to 79.7:

(9n + 308)/ (n + 8) = 79.7

By cross-multiplication and solving for n, we get:

n = 44.5 (approx)

Therefore, the mean score for all ninth graders in the city will be:

(81 + 93 + 65 + 44.5 + 45.5 + 46.5 + 47.5 + 48.5 + 49.5)/17= 52.76 (approx)

Hence, the correct mean score for all ninth graders in the city is 52.76.

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Which statements are true about the median

Answers

Answer:

First, Third, Fifth statements are true about the median of a data set. Step-by-step explanation: Median is the middle value . Median isn't affected much by one outlier because median is the middle value of an ordered sequences of value

if the price of bananas is $2 a pound, how many pounds of bananas will suppliers supply? 10 1 10,000 0

Answers

If the demand for bananas at $2 per pound is 10 pounds, then the suppliers will supply 10 pounds of bananas.

The question is about determining the number of pounds of bananas suppliers will supply at a given price of $2 a pound.

To determine the number of pounds of bananas suppliers will supply, we need more information than just the price of bananas.

Supply is affected by many factors like cost of production, demand, and the price of substitutes.

Suppliers will supply bananas to the market until the price they get equals the cost of production plus a margin.

If the price is higher than the cost of production plus a margin, then they will continue to supply to maximize their profits.

In the given question, we don't have enough information about the cost of production, demand, and substitutes. Therefore, we cannot accurately predict the amount of pounds of bananas that will be supplied.

However, if we assume that the cost of production is constant and there are no substitutes, then the suppliers will supply bananas at a price of $2 per pound until the market reaches equilibrium.

At equilibrium, the quantity supplied equals the quantity demanded.

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true or false: with a well-designed sample survery, the sample percentage is very likely to equl the population percentage

Answers

This sentence is False, when the sample size is small, the sample percentage may not be equal to the population percentage.

In demographics, the sector population is the overall quantity of human beings presently residing. It turned into predicted by the United countries to have exceeded eight billion in November 2022. It took over 2 hundred,000 years of human prehistory and history for the human populace to attain one billion and only 219 years extra to attain 8 billion.

The human population experienced a non-stop boom following the Great Famine of 1315–1317 and the end of the Black dying in 1350 when it became nearly 370,000,000. the very best worldwide populace growth quotes, with increases of over 1.8% in line with 12 months, took place between 1955 and 1975, peaking at 2.1% between 1965 and 1970. The increased charge declined to one.1% between 2015 and 2020 and is projected to say no further within the twenty-first century. the worldwide population continues to increase, however, there's sizable uncertainty approximately its long-term trajectory due to converting fertility and mortality fees. The UN Department of Economics and Social Affairs tasks between 9 and 10 billion people by 2050 and offers an 80% self-assurance c language of 10–12 billion by using the cease of the twenty-first century, with a growth charge by using then of zero. other demographers are expecting that the human populace will start to decline in the 2d half of the 21st century.

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CAN SOMEONE PLEASE HELP ITS EASY BUT IM D U M B

CAN SOMEONE PLEASE HELP ITS EASY BUT IM D U M B

Answers

Answer:

I believe the answer is C. Use Desmos and plug in the equation y=-x-2

Step-by-step explanation:

CAN SOMEONE PLEASE HELP ITS EASY BUT IM D U M B

a square has one side that is 8 inches long. what is the area of the square

Answers

Answer:

64 inches sq

hope this helps

have a good day :)

Step-by-step explanation:

List three negative numbers that are between -8 and -1

Answers

Answer:

the answer is -5 -3 -7 but there are more

Answer:

-7,-6,-5,-4,-3,-2 they are alot but you can take what every number

An igloo can be modeled as a hemisphere. Its radius measures 4. 5 m. Find its volume in cubic meters. Round your answer to the nearest tenth if necessary.

Answers

Given its measurements to the nearest tenth, the igloo's required volume is 134.10 m³.

What is volume?

Volume is a measurement of three-dimensional space that is occupied.

It is frequently expressed quantitatively using SI-derived units, as well as several imperial or US-standard units.

Volume and the notion of length are connected.

The quantity of surface area per unit volume of an object or collection of objects is known as the surface-area-to-volume ratio, sometimes known as the surface-to-volume ratio and variously abbreviated as sa/vol or SA:V.

So, half of a sphere is known as a hemisphere.

The three-dimensional equivalent of a circle is a sphere.

Dimensions of a hemisphere:

= (2/3) x (π) x (r³)

π = 22/7

r = radius

2/3 x 4³ x 22/7 = 134.10 m³

Therefore, given its measurements to the nearest tenth, the igloo's required volume is 134.10 m³.

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Correct question:
An igloo can be modeled as a hemisphere. Its radius measures 4 m. Find its volume in cubic meters. Round your answer to the nearest tenth if necessary.

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discuss what occurs for an element to produce a specific emission spectra. Find the difference of the complex numbers.(7 +3i)-(3-7i)O A. 4 + 10iO B. 10-4iO C. 4- 4iO D. 10 + 10i what is the necessary condition on the path length difference between two waves that interfere as follows Practice:What is the range of a sine function?a. irrational numbersb. negative numbersc. All real numbers between -1 and 1 including -1 and 1d. All real numbers between -2 and 2 including -2 and 2Please select the best answer from choices provided Please help Which of the following sentences uses an interjection correctly? I passed my test after studying for a week. yay! I passed my test after studying for a week, Yay! I passed my test after studying for a week yay! I passed my test after studying for a week. Yay! Bridget baked 35 cookies with 7 scoops of flour. How many scoops of flour does Bridget need in order to bake 50 cookies? Assume the relationship is directly proportional a bacteria culture starts with 720 bacteria and grows at an exponential rate calculator. after 2 hours there will be 1440 bacteria. give your answer accurate to at least 4 decimal places. Ellie is using five different measurements for a project in woodshop. The fractions in the image represent the measurements shell need. Which list shows the measurements in order from least to greatest? Conflict theorists using a feminist framework are divided on the issue of prostitution. some believe it is morally objectionable while others believe __________. 2. How many grams of CaCl are needed to prepare 125 mL of a 2.00 M solution of aqueous CaCl(aq)?(M, molarity) When maximizing x - y subject to x + y 4, x + 2y 6, x 0, y 0 what is the maximal value that the objective function reaches? Select one: O a. 5 O b. -3 . 0 O d. 4 what technique can be used to make sure that parallel withdrawals from atms cannot exceed the given limit of a bank account? Which of the following are disadvantages to investing in precious metals compared with other retirement cash flows help me please with math What level of involvement do food workers have in executing a master cleaning schedule. What is the normal force on an object weighing 437N at rest on an inclined plane with an angle of 29 degrees? Riley is saving up to buy a new television. She needs a total of $1,279.93. Riley has saved $200.39 already and earns $77.11 perweek at her job. How many weeks does Riley need to work to save enough money to buy the new television?14OB13OC15OD12 Fred was purchasing rice for his restaurant for the week. He usually makes 150 dishes a week with rice and each portion is 5 ounces. How many pounds of rice should Fred purchase for the week? Mary and Jane went on a tour together. Mary brought twice as much money as Jane. After Mary had spent $800 and Jane had spent $240, they had equal amount of money left. How much money did Mary have at first? an inverted cone has a height of 15 mm and an initial radius of 16 mm. the volume of the inverted cone is decreasing at a rate of 534 cubic mm per second, with the height being held constant. what is the rate of change of the radius, in mm per second, when the radius is 6 mm?