Answer:
Your answer is 12.
Step-by-step explanation:
If a cube has 6 faces, and since there is 2 cubes 6+6=12
what is the advantage of a larger sample size when attempting to estimate the population mean? a larger sample - select your answer - the standard error and results in a(n) - select your answer - precise estimate of the population mean.
The estimate of the population mean is more likely to be closer to the true population mean.
The advantage of a larger sample size when attempting to estimate the population mean is that it reduces the standard error and results in a more precise estimate of the population mean. This is because a larger sample size provides more information and reduces the variability of the sample mean.
The standard error is a measure of the variability or uncertainty in the estimate of the population mean, so a larger sample size leads to a smaller standard error. Therefore, with a larger sample size, the estimate of the population mean is more likely to be closer to the true population mean.
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questions attached anyone help me pls
Answer:
Step-by-step explanation:
The fox population in a certain region has a continuous growth rate of 5 percent per year. It is estimated that the population in the year 2000 was 19600.
a) P(t) = 19600 * ( 1 + 0.05 ) ^ t
b) The estimated value of the population in the year 2008 is 25,958.
Given: The population has a continuous growth rate (r) = 5% per year.
The population in the year 2000 was 19600.
Let we consider a function P(t), where t is time or number of years at which we have to find the value of the function P(t).
Consider 2000 be the initial year of the region. so at t = 0, the population was 19600.
We know that the time value increase equation can be written as.
P(t) = Initial value * ( 1 + rate / 100) ^ t
According to the question ,
rate(r) = 5%
Initial value = 19600
The required equation is:
P(t) = 19600 * ( 1 + 0.05 ) ^ t
Now, we have to estimate the population in the year 2008.
So the time span from 2000 to 2008 is (difference from the initial year to the target year)
t = 2008 - 2000 = 8
t = 8
Therefore the estimated population in the year 2008 is:
P(8) = 19600 ( 1 + 0.05 ) ^ 8
= 28,958.12669
Now population cannot be a decimal number so the answer is 28,958(rounded to the closest integer value).
Hence, the estimated value of the population in the year 2008 is 25,958.
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Disclaimer: The question is incomplete. The complete question is mentioned below:
The fox population in a certain region has a continuous growth rate of 5 percent per year. It is estimated that the population in the year 2000 was 19600.
(a) Find a function that models the population t years after 2000 (t=0 for 2000).
(b) Use the function from part (a) to estimate the fox population in the year 2008.
Solve the math problem
I will mark brainliest
Let a number be x
\(\\ \sf\longmapsto \dfrac{x}{x}\)
\(\\ \sf\longmapsto 1\)
And we know that.
\(\\ \sf\longmapsto n/1=n,n\in N,Z,R,Q\)
So all questions have the answer as per the question .Just rewrite them
a group of seven people are attending the movies together. (a) two of the seven insist on sitting side-by-side. in how many ways can the seven be seated together in a row?
The total number of ways in which the group of seven people can be seated together in a row are 1440.
The group of seven people are attending the movie together and two of them are insisting that they will sit side by side to each other.
Now if all the people were to be seated in any random order then the number of positions would have been seven but now as two people are sitting side by side so we will consider only six positions in which we have to make the combinations.
And as we know that the seven people will be unique and there will be no repetition total number of ways in which the seven can be fitted together in a row is,
= 6 x 5 x 4 x 3 x 2 x 1 x 2
= 1440
It is to be noted that we have multiplied by the number of positions with to because the two people who are sitting together can be seated in two possible ways.
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what is the equation for the least-squares regression line for predicting corn yield from the number of lamb's
The regression line can also be used to assess the strength and direction of the relationship between the two variables. If the slope is positive, it indicates that there is a positive relationship between the number of lamb's and corn yield and vice versa.
To find the equation for the least-squares regression line for predicting corn yield from the number of lamb's, you would first need to gather data on the number of lamb's and the resulting corn yield for several observations. Once you have this data, you can use statistical software or a calculator to calculate the regression line.
The equation for the least-squares regression line can be represented as:
y = a + bx
Where y represents the predicted corn yield, x represents the number of lamb's, a is the y-intercept, and b is the slope of the line. The slope of the line tells us the rate at which corn yield changes with respect to the number of lamb's.
To calculate the values of a and b, we need to use the least-squares method. This involves finding the values of a and b that minimize the sum of the squared differences between the actual and predicted corn yield for each observation. The least-squares method provides the best-fitting line that represents the relationship between the two variables.
Once you have calculated the values of a and b, you can plug them into the equation for the regression line and use it to predict the corn yield for a given number of lamb's. The regression line can also be used to assess the strength and direction of the relationship between the two variables. If the slope is positive, it indicates that there is a positive relationship between the number of lamb's and corn yield. If the slope is negative, it indicates that there is a negative relationship between the two variables.
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a contractor is installing carpet in a new house. the rectangular living room has an area of 96 square feet, and the length is twelve less than three times the width of the room. what are the dimensions of the room?
The room has a length of 12 feet and a width of 8 feet if it has an area of 96 square feet.
As the length is 12 less than three times the width of the room, therefore;
length = 3x - 12
Here x represents the width of the room
As the area of rectangle = length × width; using this formula in this case as follows;
96 = (3x - 12) × (x)
96 = 3x² - 12x
3x² - 12x - 96 = 0
3x² - 24x + 12x - 96 = 0
3x (x - 8) + 12 (x - 8) = 0
(3x + 12) (x - 8) = 0
x = -4 or 8
As the width can only be a positive value therefore we take 8
Hence x = 8
Now the length of the rectangle can be calculated as follows;
Length = 3x - 12
Length = 3 × 8 - 12
Length = 12
Therefore; the dimensions of the rectangular room are 12 by 8 feet.
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Mabel likes orange soda (OS) and potato chips (PC). Her utility is defined by: U=O
2
∗PC 1.) Draw an indifference curve for U1=400 utils and one for U2=1000 utils. Show at least 3 points per curve. 2.) If she wants to drink 16 bottles of orange soda per week, how many bags of potato chips would she consume in order for her utility to equal 800 utils? 3.) If Mabel drinks 20 bottles of orange soda instead, how many bags of potato chips would she consume in order to achieve 800 utils? 4.) Which of the two above combinations of goods would Mabel prefer and why? 5.) Would Mabel prefer a bundle containing 1 bottle of orange soda and 2 bags of potato chips? Or a bundle containing 2 bottles of orange soda and one bag of potato chips?
1) Drawing indifference curves: Indifference curves represent combinations of orange soda (OS) and potato chips (PC) that provide Mabel with the same level of utility.
Let's draw two indifference curves: one for U1 = 400 utils and another for U2 = 1000 utils. Indifference curve for U1 = 400 utils:
Points:
1. (OS = 10, PC = 40)
2. (OS = 8, PC = 50)
3. (OS = 4, PC = 80)
Indifference curve for U2 = 1000 utils:
Points:
1. (OS = 20, PC = 25)
2. (OS = 16, PC = 31.25)
3. (OS = 10, PC = 40)
2) Finding the consumption of potato chips for U = 800 utils:
Given that Mabel wants to drink 16 bottles of orange soda (OS) per week, we need to find the corresponding consumption of potato chips (PC) that yields a utility of 800 utils. From the given utility function U = O^2 * PC, we can set up the equation as:
(16^2) * PC = 800
PC = 800 / 256
PC ≈ 3.125 bags (approximately)
3) Finding the consumption of potato chips for 20 bottles of orange soda:
Similar to the previous question, if Mabel drinks 20 bottles of orange soda (OS), we can use the utility function U = O^2 * PC to find the corresponding consumption of potato chips (PC) for a utility of 800 utils:
(20^2) * PC = 800
PC = 800 / 400
PC = 2 bags
4) Comparison of combinations and preference:
Comparing the two combinations, Mabel would prefer the bundle with 20 bottles of orange soda and 2 bags of potato chips. This is because it provides the same utility of 800 utils but requires fewer bags of potato chips compared to the bundle with 16 bottles of orange soda and 3.125 bags of potato chips. Mabel can achieve the same level of satisfaction with fewer potato chips in the former combination.
5) Preference between two bundles:
To determine Mabel's preference between two bundles, we need to compare the utilities they provide. Bundle A contains 1 bottle of orange soda and 2 bags of potato chips, while bundle B contains 2 bottles of orange soda and 1 bag of potato chips. We can calculate the utilities for both bundles using the given utility function U = O^2 * PC.
For bundle A:
U_A = (1^2) * 2 = 2
For bundle B:
U_B = (2^2) * 1 = 4
Since U_B (4 utils) is greater than U_A (2 utils), Mabel would prefer the bundle containing 2 bottles of orange soda and 1 bag of potato chips (bundle B) as it provides a higher level of utility.
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HELPPPPPP!!!!!!!!!!!!!!!
Answer:
I might be wrong i think its C but double check and dont put it in until you are sure its right
Step-by-step explanation:
Candice earns $84,000 per year as a lawyer and has $38,000 she can use for a
down payment on a house. what is the maximum home price she should
consider when looking at homes?
note: the bankers' rule of thumb for mortgages is 2.5 times the annual salary.
The maximum home price Candice should consider is $210,000 ($84,000 x 2.5).
1. Calculate the annual salary:
Candice earns $84,000 per year
2. Calculate the maximum home price using the banker's rule of thumb:
2.5 times the annual salary = $84,000 x 2.5 = $210,000
3. Subtract the down payment amount from the maximum home price:
$210,000 - $38,000 = $172,000
Therefore, the maximum home price Candice should consider is $172,000.
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Circle the outliers in the following scatter plots. -5 15 10 L 5 5 -5 10 15 4 3 2 2 3 4 5 - 60 7
The outliers in the following scatterplots need to be circled:--5, 15-60
The points (-5,15) and (-60,7) are outliers.
An outlier is a value that lies outside (is smaller or larger) than most other values in a given data set. An outlier may represent a unique event or error. When examining scatterplots, outliers are the values that appear to be farthest from the trend line. Outliers are labeled as "L" in scatterplots. To answer this question, the outliers in the following scatterplots need to be circled:
--5, 15-60
The points (-5,15) and (-60,7) are outliers.
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Find the zeros of the function.
Enter the solutions from least to greatest.
f(x)=-3x^2 +75
Answer:
This function doesn't have zeros because it doesn't touch the x-axis.
EDIT: I didn't see the negative sign before the 3. The function crosses the x-axis at (-5,0) and (5,0). Sorry!
-6=b/18 solve this equation
From the given equation, we are to solve for b.
\(\begin{gathered} -6=\frac{b}{18} \\ \text{Cross mult}iply \\ -6\times18=\text{ b} \\ -108=\text{ b} \end{gathered}\)Hence the answer of b is -108.
find an equation of the tangent line to the curve at the given point. y = 3ex cos(x), (0, 3)
A equation of the tangent line to the curve is y = 3x + 3
The term tangent line in math is calculated as an equation of the tangent line we have to find the derivative of the function and its value at the given point.
And then we have to the function given is a product of an exponential and cosine function. We will have to use product rule.
Finally, we have to write the equation of tangent line by point slope form.
Here we have the curve equation as,
=> y = 3eˣcos(x)
Now, we have to calculate the derivative y' from the given equation, then we get,
=> y' = = 3(eˣ (−sin x) + (cos x) eˣ)
Now, it can be simplified as,
=>y' = 3eˣ(cos x − sin x)
Here we have given that the the slope of the tangent line at (0, 3), then the value of
=> 3e⁰(cos0−sin0) = 3(1−0) = 3
Then the equation is written as
=> y − 3 = 3(x − 0)
=> y = 3x + 3
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There are 4 paperback and 10 hardback books on a reading list. Your teacher randomly assigns you 3 books to take home. What is the probability that you are assigned all hardback books? All answers should be given as a fraction in simplest form!
Any help would be appreciated! Thanks!!!
Answer:
14/3 as an improper fraction
Step-by-step explanation:
Step-by-step explanation:
3/2
how long is the Yangtze river
Answer:
3,915 mi
Step-by-step explanation:
A student is graduating from college in 12 months but will need a loan in the amount of $9,529 for the last two semesters. The student may
receive either an unsubsidized Stafford Loan or a PLUS Loan. The terms of each loan are:
Unsubsidized Stafford Loan: annual interest rate of 5.95%, compounded monthly, and a payment grace period of six months from time of
graduation
PLUS loan: annual interest rate of 6.55%, compounded monthly, with a balance of $10,172.23 at graduation
Which loan will have a lower balance, and by how much, at the time of repayment?
A. The Stafford loan will have a lower balance by $244.04 at the time of repayment.
B. The PLUS loan will have a lower balance by $244.04 at the time of repayment.
C. The Stafford loan will have a lower balance by $431.17 at the time of repayment.
D. The PLUS loan will have a lower balance by $431.17 at the time of repayment.
Thus, the correct answer is: C. The Stafford loan will have a lower balance of $431.17 at the time of repayment.
How to solveIn order to evaluate the Unsubsidized Stafford Loan against the PLUS Loan, a comparison of their balances upon repayment after 6 months of graduation is necessary.
Having taken out a loan of $9,529 with an annual interest rate of 5.95% compounded monthly, and after an interest accumulation period of 18 months, the Stafford Loan balance at this point in time stands roughly around $10,365.86.
On the other hand, the PLUS Loan's equilibrium at graduation is recorded at $10,172.23, but including a 6-month interest accumulation period along with an annual incrementation percentage of 6.55% that is compounded monthly equals to approximately $10,797.03 when due for repayment.
To summarize, based on the balance comparisons, it is concluded that the Stafford loan owes a lower amount at repayment which is different by $431.17 compared to the PLUS Loan.
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An ant can travel at a constant speed of 980 inches every 5 minutes. At this rate, how far can the ant travel in 7 minutes?
Answer:
Step-by-step explanation:
if the ant travels 980 every 5 minutes
980/5=196 inch/min
in 7 min
196*7=1372 inches
an online computer game company has 10,000 subscribers paying $8 per month. their research shows that for every 25-cent reduction in their fee, they will attract another 500 users. the table below models the revenue for several fee rates.what fee should the company charge to maximize their revenue? how do you know?
The fee should the companyfee should the company charge to maximize their revenue charge to maximize their revenue is $7.50.
To determine the fee that the online computer game company should charge to maximize their revenue, we need to calculate the revenue for each fee rate listed in the table below:
| Fee Rate | Number of Subscribers | Revenue |
|----------|----------------------|---------|
| $8.00 | 10,000 | $80,000 |
| $7.75 | 10,500 | $81,375 |
| $7.50 | 11,000 | $82,500 |
| $7.25 | 11,500 | $83,375 |
| $7.00 | 12,000 | $84,000 |
| $6.75 | 12,500 | $84,375 |
| $6.50 | 13,000 | $84,500 |
| $6.25 | 13,500 | $84,375 |
| $6.00 | 14,000 | $84,000 |
From the table, we can see that the revenue initially increases as the fee rate decreases, but then starts to decrease after $7.50. This is because although the number of subscribers increases with a lower fee rate, the decrease in revenue from each individual subscriber outweighs the increase in subscribers.
Therefore, the fee rate that would maximize revenue for the online computer game company is $7.50. This is the fee rate where the revenue is the highest, at $82,500. We know this is the optimal fee rate because any higher fee rate will result in fewer subscribers, and any lower fee rate will result in a decrease in revenue per subscriber.
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TRICK QUESTION
(1st correct answer gets brainliest)
How do you go 100 days without sleeping?
Answer:
you go to sleep at night is the correct answer
which statement about the graph is true?
The 1st statement is true about the graph. Here the graph is a function with domain {0≤x≤5} and the range {-6≤y≤0}.
What are graphs?An organised representation of the data is all that the graph is. It facilitates our understanding of the facts.
The Latin term datum, which means "something delivered," is where the word data originated.
The development of a research question is followed by the ongoing observational collection of data.
Here in the question,
The graph is a function with domain {0≤x≤5} and the range {-6≤y≤0}.
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During the first semester of school, Ms. Sander's 4th
grade class has read a total of 1,298 books. During the
second semester, the class will read an additional
1,438 books. How many books will the class have read
in all?
The total books Sander's class students will read during the first along with the second semester is 2736.
Given,During the first semester of school, Ms. Sander's 4th
grade class has read a total of 1,298 books.
During the second semester, the class will read an additional
1,438 books.
hence we formulate books:
first semester = 1298
second semester = 1438
Altogether books read = ?
= semester 1 + semester 2
= 1298 + 1438
= 2736
Hence books read by the Sander's class students are 2736.
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4. If 60 marks is 40%, what is full
marks?
Answer:
150
Step-by-step explanation:
First of all divide the given marks with given percent and divide it by 100
60/40*100=150
Mark as Brainliest
60/x=40/100
40x=6000
40x/40=6000/40
x=6000/40
x=150 marks
two search-and-rescue teams leave base camp at the same time, looking for a lost child. the first team, on horseback, heads north at 3 mph, and the other team, on foot, heads south at 2.5 mph. how long will it take them to search a distance of 22 miles between them?
Both teams can complete the search in a time period of 4 hours.
Distance formula:Distance is a measurement of how far apart two points or objects are from one another. Time is a unit used to describe how long it takes for an object to travel between two points. Speed is a unit used to describe how quickly or slowly an item or a point moves.
Distance = Speed × TimeHere we have
Two search-and-rescue teams leave base camp at the same time,
looking for a lost child.
The first team, on horseback, heads north at 3 mph,
The second team, on foot, heads south at 2.5 mph.
Let both teams complete searching in 'x' mins
The distance traveled by 1st team in 'x' mins = 3 × x
= 3x m
The distance traveled by 2nd team in 'x' mins = 2.5 × x
= 2.5x m
As we know total distance = 22 miles
=> 3x + 2.5x = 22 miles
=> 5.5x = 22 miles
=> x = 4 hrs
Therefore,
Both teams can complete the search in a time period of 4 hours.
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If a = 7 and b = 2, find the value of
a) a- b
b) 2a + 3b
c) 2ab
d) (a - b)?
Two similar pyramids have base areas of 12.2 cm2 and 16 cm2. The surface area of the larger pyramid is 56 cm2.What is the surface area of the smaller pyramid
The surface area of the smaller pyramid is approximately 42.7 cm².
To find the surface area of the smaller pyramid, we can use the properties of similar figures and the given information about their base areas and the surface area of the larger pyramid.
Step 1: Find the ratio of the areas of the two pyramids' bases.
Since the base areas are 12.2 cm² for the smaller pyramid and 16 cm² for the larger pyramid, the ratio of their base areas is:
12.2 cm² / 16 cm² = 0.7625
Step 2: Calculate the square root of the ratio.
The ratio of their linear dimensions (such as height or side lengths) is the square root of the ratio of their corresponding areas. So, we need to find the square root of 0.7625:
√0.7625 ≈ 0.873
Step 3: Find the ratio of the surface areas.
Since the surface area is proportional to the square of the linear dimensions, we need to square the linear dimension ratio to get the surface area ratio:
0.873² ≈ 0.7625
Step 4: Calculate the surface area of the smaller pyramid.
Now that we have the surface area ratio, we can use it to find the surface area of the smaller pyramid by multiplying the surface area of the larger pyramid (56 cm²) by the ratio:
56 cm² * 0.7625 ≈ 42.7 cm²
So, the surface area of the smaller pyramid is approximately 42.7 cm².
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What angular resolution would you need to see the Sun and Jupiter as distinct points of light? Express your answer in arcseconds to two significant figures. Jupiter 195| ΑΣΦ % ? 11 Suppose you were looking at our own solar system from a distance of 6.0 light-years.
An angular resolution of 0.56 arcseconds is required to see the Sun and Jupiter as separate objects. This is an extremely small angle and would necessitate the use of a large telescope.
Angular resolution is defined as the minimum angle between two objects that enables a viewer to see them as distinct objects rather than as a single one. A better angular resolution corresponds to a smaller minimum angle. The angular resolution formula is θ = 1.22 λ / D, where λ is the wavelength of light and D is the diameter of the telescope. Thus, the angular resolution formula can be expressed as the smallest angle between two objects that allows a viewer to distinguish between them. In arcseconds, the answer should be given to two significant figures.
To see the Sun and Jupiter as distinct points of light, we need to have a good angular resolution. The angular resolution is calculated as follows:
θ = 1.22 λ / D, where θ is the angular resolution, λ is the wavelength of the light, and D is the diameter of the telescope.
Using this formula, we can find the minimum angular resolution required to see the Sun and Jupiter as separate objects. The Sun and Jupiter are at an average distance of 5.2 astronomical units (AU) from each other. An AU is the distance from the Earth to the Sun, which is about 150 million kilometers. This means that the distance between Jupiter and the Sun is 780 million kilometers.
To determine the angular resolution, we need to know the wavelength of the light and the diameter of the telescope. Let's use visible light (λ = 550 nm) and assume that we are using a telescope with a diameter of 2.5 meters.
θ = 1.22 λ / D = 1.22 × 550 × 10^-9 / 2.5 = 2.7 × 10^-6 rad
To convert radians to arcseconds, multiply by 206,265.θ = 2.7 × 10^-6 × 206,265 = 0.56 arcseconds
The angular resolution required to see the Sun and Jupiter as distinct points of light is 0.56 arcseconds.
This is very small and would require a large telescope to achieve.
In conclusion, we require an angular resolution of 0.56 arcseconds to see the Sun and Jupiter as separate objects. This is an extremely small angle and would necessitate the use of a large telescope.
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These are the answers.........................
I don’t know the answer helppp
Answer:
(1, -2)
Step-by-step explanation:
equate the two answers (make them equal to each other). Then solve.
7x + 11 = -3x + 1
7x + 3x = 1 - 11
10x = -10
x = 1
Plug "x" in to one of the equations to find "y" (I'm using equation 2)
y = -3(1) + 1
y = -3 + 1
y = -2
final answer: (1, -2)
Select all the ratios equivalent to 8:6.A. 4:3B. 6:8C. 16:12D. 10:8E. 7:5
Dividing the given ratio by 2, we get
8:6 = 8/2 : 6/2 = 4:3
Multiplying the given ratio by 2, we get
8:6 = 8*2 : 6*2 = 16:12
Then, the correct choices are A and C