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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what do ducks short necks help them to do? pls help :/
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?
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.
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
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
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
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!!!!
Answer:
ANSWER-0.175
Step-by-step explanation:
10Which best describes a system of equations that has infinite solutions?
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?
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
Answer:
the number of times he washes the car
Step-by-step explanation:
help me i need to know
Choose the best estimate for the division problem below
6.7 /0.6
A. 16
B. 15
C. 11
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
which one doesn't belong?
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
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?
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.
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!!!!!!!!!!!!!!!!!!!!!!
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
Answer:
3.10
Step-by-step explanation:
HELP!!! need answers for these questions please. Thank You for anyone who solves atleast one of them!
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
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
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 = 6So, 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 = 3So, 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 ≈ 70.6858So, 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 × widthInserting the dimensions of the rectangle:
8 × 6 = 48So, the area of the rectangle is 48 square inches.
Adding the two areas together:
70.6858 + 48 = 118.6858 ≈ 118.7Therefore, the area of the entire figure, rounded to the nearest tenth is \(118.7\) \(in^{2}\).
what is this answer
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
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
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
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
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
Answer:
I believe the answer is C. Use Desmos and plug in the equation y=-x-2
Step-by-step explanation:
a square has one side that is 8 inches long. what is the area of the square
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
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.
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.