The fence ought to be cut into 12 pieces, every one of length 28 m, to make three squares, each with a side length of 28 m. This will limit the total area encased by the fence.
To limit the total area encased by the fence, the three squares ought to have equivalent areas. Let x be the length of each side of the squares. Then the perimeter of each square is 4x, and the total length of the fence is 3(4x) = 12x. Since the total length of the fence is given to be 336 m, we have:
12x = 336
Addressing for x, we get:
x = 28
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z score of 0.28 and corresponding z score
Step-by-step explanation:
Mathematics for Social Science 1011 PDF
the radius of a spherical beach ball is 24 centimeters. If another spherical beach ball has a radius of 3 centimeters long, abut how much greater is its volume , to the nearest cubic centimeter?
The secοnd beach ball has a vοlume abοut 57,791.69 cubic cm less than the first beach ball.
What is vοlume?Each thing in three dimensiοns takes up sοme space. The vοlume οf this area is what is being measured. The space οccupied within an οbject's bοrders in three dimensiοns is referred tο as its vοlume. It is sοmetimes referred tο as the οbject's capacity.
The vοlume οf a sphere with radius r is given by the fοrmula V = (4/3)πr³.
Fοr the first beach ball, with radius 24 cm, the vοlume is represented by the equatiοn-
V1 = (4/3)π(24 cm)³
V1 ≈ 57,904.79 cubic cm
Fοr the secοnd beach ball, with radius 3 cm, the vοlume is represented by the equatiοn -
V2 = (4/3)π(3 cm)³
V2≈ 113.10 cubic cm
The difference in vοlume between the twο beach balls is -
V1 - V2 ≈ 57,904.79 - 113.10
V1 - V2 ≈ 57,791.69 cubic cm
Therefοre, tο the nearest cubic centimeter, the vοlume is 57,792 cubic cm difference in bοth the beach balls.
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the graph of a certain geometric sequence can be described as a curve increasing from left to right. which sequence would have a similar graph?
The graph of a certain geometric sequence can be described as a curve increasing from left to right. A sequence that would have a similar graph is the geometric sequence whose common ratio is less than 1.
A geometric sequence is defined as a sequence of numbers where each number is the product of the previous number and a fixed constant. The fixed constant is known as the common ratio, and it is denoted by r.The nth term of a geometric sequence is given by the formula an= ar^(n-1) where a is the first term and r is the common ratio of the sequence.
Similar graphIn a similar graph, the shape of the graph is the same, but the size may be different. Thus, the sequence that would have a similar graph to the given sequence is a geometric sequence whose common ratio is less than 1 because in such a sequence, the successive terms will be smaller than the previous term.This means that as we move from left to right, the values will gradually decrease in size, and the graph will look like a curve increasing from left to right.
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y=14-3x domain (-6,5,13)
Answer:
y = {18 x + 14, 14 - 15 x, 14 - 39 x}
Step-by-step explanation:
There is zero context to this, so I have no clue if this helps or even answers your question. Try harder with the question next time.
Please help!!! I only have a few minutes left!! I've given screenshots of everything
The solution to the system of equations is: x = 1/2 and y = 4. The steps and justification are given below.
How to Solve a System of Equations?Given the equations, -4x + y = 2 and 4x + y = 6, the following shows the justification for each step taken to solve the system.
Step Justification
1. 2y = 8 1. Add the equations
2. y = 4 2. Divide each side by 2
3. 4x + y = 6 3. Write equation 2
4. 4x + (4) = 6 4. Substitute 4 for y
5. 4x = 2 5. Subtract 4 from each side
6. x = 1/2 6. Divide each side by 4
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9 N = 480 ´ 109
(a) Write N as a number in standard form.
(1)
(b) Write N as a product of powers of its prime factors.
Show your working clearly.
(3)
(c) Find the largest factor of N that is an odd number.
Answer:
(a) To write 9 N as a number in standard form, we need to express it as a number between 1 and 10 multiplied by a power of 10. To do this, we can divide 9 N by 10 until we get a number between 1 and 10:
9 N = 480 × 10^9
9 N ÷ 10 = 48 × 10^9
9 N ÷ 10^2 = 4.8 × 10^9
9 N ÷ 10^3 = 0.48 × 10^9
9 N ÷ 10^4 = 0.048 × 10^9
9 N ÷ 10^5 = 0.0048 × 10^9
Therefore, 9 N = 4.8 × 10^10.
(b) To write N as a product of powers of its prime factors, we can first factorize N:
480 × 10^9 = 2^5 × 3 × 5 × 10^9
Then, we can express 10^9 as 2^9 × 5^9 and substitute it in the factorization:
2^5 × 3 × 5 × 2^9 × 5^9 = 2^14 × 3 × 5^10
Therefore, N = 2^14 × 3 × 5^10.
(c) To find the largest factor of N that is an odd number, we need to remove all factors of 2 from the factorization of N. We can do this by dividing N by 2 as many times as possible:
N = 2^14 × 3 × 5^10
N ÷ 2 = 2^13 × 3 × 5^10
N ÷ 2^2 = 2^12 × 3 × 5^10
N ÷ 2^3 = 2^11 × 3 × 5^10
N ÷ 2^4 = 2^10 × 3 × 5^10
N ÷ 2^5 = 2^9 × 3 × 5^10
N ÷ 2^6 = 2^8 × 3 × 5^10
N ÷ 2^7 = 2^7 × 3 × 5^10
N ÷ 2^8 = 2^6 × 3 × 5^10
N ÷ 2^9 = 2^5 × 3 × 5^10
N ÷ 2^10 = 2^4 × 3 × 5^10
N ÷ 2^11 = 2^3 × 3 × 5^10
N ÷ 2^12 = 2^2 × 3 × 5^10
N ÷ 2^13 = 2 × 3 × 5^10
N ÷ 2^14 = 3 × 5^10
Therefore, the largest factor of N that is an odd number is 3 × 5^10.
PLEASE HELP NEED IT DONE RN
Answer:
B) 3
Step-by-step explanation:
219 / 73= 3
3 x 73= 219
Answer: 3
Step-by-step explanation:
g. Substitute x back into one of the equation to solve for y. 5x+2y=7 3x-y=2
Answer: Substitute x back into one of the equations to solve for y.
Step-by-step explanation:
1/3750 as a percetage
Answer: 37.5
Step-by-step explanation:
researchers are studying a population of small plants on an island. before and after a major drought, they dug up a random sample of plants and measured their root length. during the drought, no plant reproduction took place. what can be concluded from the plot below?
The correct conclusion that can be drawn from the plot is that the plant population had a significantly lower mean root length after the major drought occurred.
Explanation:
A frequency polygon is a graphical representation of a frequency distribution using line segments connected to points that indicate the midpoint of each class interval.
The horizontal axis shows the measurement variable, while the vertical axis shows the number of occurrences of the variable for each bin. The midpoint of each bin is used to represent the distribution of data that falls within that bin's range.
Since the values of adjacent bins overlap, the lines are connected. The points are connected by straight lines in a frequency polygon.
In this case, the conclusion that can be drawn from the plot is that the plant population had a significantly lower mean root length after the major drought occurred.
The peak of the frequency polygon has shifted to the left, indicating that the majority of plants have a shorter root length. The decrease in the mean root length of the plant population is due to the impact of the major drought on the island.
As a result, no plant reproduction took place, indicating a decrease in the plant population.
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The annual rainfall for Austin, Texas, and San Antonio, Texas, in each of the years from 2002 to 2011 are shown in the tables. Use the data for 9-it.' Annual Rainfall for Austin, Texas (in.) 36.00 21.41 52.27 22.33 34.70 46.95 16.07 31.38 37.76 19,68 Annual Rainfall for San Antonio, Texas (in.) 46.27 28,45 45.32 16.54 21.34 47.25 13.76 30.69 37.39 1759 9. Use a spreadsheet to find the mean for the two cities' annual rainfalls. In which city does it rain more in a year, on average?
In San Antonio, Texas it rain more in a year, on average when compared to Austin, Texas according to the mean of both cities.
Data of Austin, Texas is as follows:
36.00, 21.41, 52.27, 22.33, 34.70, 46.95, 16.07, 31.38, 37.76 and 19.68.
Number of values ( n ) = 10
Sum of the values = 318.23
Average of the rainfall in Austin, Texas is equal to:
Mean = Total sum / No. of Values
Mean = 318.23 / 10
Mean = 31.82 in
Data of San Antonio, Texas is as follows:
46.27, 28.45, 45.32, 16.54, 21.34, 47.25, 13.76, 30.69, 37.39 and 17.59.
Number of values ( n ) = 10
Sum of the values = 304.6
Average of the rainfall in San Antonio, Texas is equal to:
Mean = Total sum / No. of Values
Mean = 304.6 / 10
Mean = 30.46 in
So, comparatively the average of San Antonio is higher.
Therefore in San Antonio, Texas it rain more in a year, on average when compared to Austin, Texas.
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Solve for y.
2y - 8x = 20
y = [ ? ]x + {?}
Answer:
y = 4x + 10
Step-by-step explanation:
2y - 8x = 20 ( add 8x to both sides )
2y = 8x + 20 ( divide through by 2 )
y = 4x + 10
Answer: y=4x+10
Step-by-step explanation:
what is the answer for 239.3 x 55
Answer:
13,161.5
Step-by-step explanation:
5x3= 15 then go over and carry the one then do 5x9= 45+1= 46 then go over to 3 and carry the four and 5x3= 15+4= 19 put 9 down and carry the one then 5x3= 10+1= 11 after x the 0 the repeat what you did and add up the final numbers so 239.5x 55= 13161.5
The three interior angles of a triangle measure z degrees , (x+5)degrees , and (x+25) degrees. Which is the measure of one of the three angles?
The three interior angles of a triangle measure z degrees , (x+5)degrees , and (x+25) degrees. So, the measure of one of the three angles is x+5.
The sum of the interior angles of a triangle is always 180 degrees.
Therefore, we can write an equation using the given angle measures:
z + (x+5) + (x+25) = 180
Simplifying the equation, we get:
2x + 30 + z = 180
Subtracting 30 and z from both sides, we get:
2x = 150 - z
Dividing both sides by 2, we get:
x = (150 - z) / 2 - 5
So the measure of one of the three angles is x+5, which is:
x + 5 = [(150 - z) / 2 - 5] + 5
x + 5 = (150 - z) / 2
x + 5 = 75 - z/2
Therefore, one of the angles measures (x+5) degrees.
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A group of workers can plant 56 acres in 8days.
What is their rate in acres per day?
Answer: I believe the answer is 7
Step-by-step explanation:
To solve this I just divided 56 by 8, the answer then is 7. Hope this helps!!!
For a t-distribution with sample size 10, P (t > 1.96) 2 0.0408 and P (t < -1.96) 2 0.0408 . Which of the following is a property of the t-distribution illustrated by the probabilities? A. With sample size 10, the tails of the curve of the t-distribution have more area than the tails of the curve of the z-distribution. B. With sample size 10, the tails of the curve of the t-distribution have less area than the tails of the curve of the z-distribution. C. With sample size 10, the middle of the curve of the t-distribution has more area than the middle of the curve of the z-distribution. With sample size 10, the mean of the t-distribution is greater than the mean of the z-distribution. E. With sample size 10, the mean of the t-distribution is less than the mean of the z-distribution.
The correct option is A) With sample size 10, the tails of the curve of the t-distribution have more area than the tails of the curve of the z-distribution.
Explanation:Given:P(t > 1.96) = 0.0408P(t < -1.96) = 0.0408The t-distribution is different from the z-distribution because it has a thicker tail.The tail is thicker since the t-distribution is determined by the sample size, whereas the z-distribution is determined by the population size (the t-distribution is estimated with the standard error of the mean in this case).
A t-distribution with small degrees of freedom has a much thicker tail than a z-distribution with the same degrees of freedom. Because sample size is related to the degrees of freedom, it makes sense that t-distributions with smaller sample sizes will have thicker tails.
The population variance is replaced with the sample variance in the estimation of the t-distribution. As a result, the t-distribution has heavier tails than the z-distribution.
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ziggy has an exercise blood pressure of 150/60, a heart rate of 140 bpm, a max vo2 of 33 ml/kg/min, and a stroke volume of 95 ml. what is her mean arterial pressure?
90 mm Hg is Zigg's mean arterial pressure.
Here's the formula for calculating MAP: MAP = (CO x SVR) + CVPR
where:
CO stands for cardiac output (measured in liters per minute).
SVR stands for systemic vascular resistance (measured in mm Hg/L/min).
CVPR stands for central venous pressure (measured in mm Hg).
Now, let's get started with the calculation of MAP.
First, let's calculate CO (cardiac output): CO = HR x SV
where:
HR is heart rate (measured in beats per minute).
SV is stroke volume (measured in milliliters per beat).
CO = 140 bpm x 95 mlCO = 13300 ml/minCO = 13.3 L/min
Next, we need to calculate SVR (systemic vascular resistance).
The formula for calculating SVR is: SVR = (MAP - CVP) / CO
where:
MAP is mean arterial pressure (measured in mm Hg).
CVP is central venous pressure (measured in mm Hg).
CO is cardiac output (measured in liters per minute).
Since we don't have CVP in this question, let's assume it to be zero.
SVR = (MAP - 0) / 13.3 L/minSVR = MAP / 13.3 L/min
Now, we can rearrange the above equation to calculate
MAP:
MAP = SVR x 13.3 L/minMAP = 60 mm Hg (diastolic pressure) + 1/3 (systolic pressure - diastolic pressure)MAP = 60 mm Hg + 1/3 (150 mm Hg - 60 mm Hg)MAP = 60 mm Hg + 30 mm HgMAP = 90 mm Hg
Therefore, Ziggy's mean arterial pressure (MAP) is 90 mm Hg.
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Suppose a second, similar study had 1000 teens and that each gender was equally
epresented. Keeping the original conclusion that 17% of the male and 22% of the female
nternet users create their own blog, what percentage of teen bloggers would be female?
What percentage of teen bloggers would be male?
Answer:
If we assume that the proportion of male and female internet users in the second study is the same as the first study (i.e., 60% female and 40% male), and that the percentage of male and female internet users who create their own blog is the same as the first study (i.e., 17% for male and 22% for female), then we can calculate the percentage of teen bloggers who are female and male.
First, we can calculate the number of male and female internet users in the second study:
Number of female internet users = 1000 x 0.5 x 0.6 = 300
Number of male internet users = 1000 x 0.5 x 0.4 = 200
Next, we can calculate the number of female and male teen bloggers in the second study, based on the percentages from the first study:
Number of female teen bloggers = 300 x 0.22 = 66
Number of male teen bloggers = 200 x 0.17 = 34
Finally, we can calculate the percentage of teen bloggers who are female and male:
Percentage of teen bloggers who are female = (66 / 1000) x 100% = 6.6%
Percentage of teen bloggers who are male = (34 / 1000) x 100% = 3.4%
Therefore, in the second study, 6.6% of teen bloggers would be female and 3.4% of teen bloggers would be male.
There are 4 toys in the first box and 7 toys in the second box. what is the ratio of the number of toys in the second box to the total of toys in both boxes
Answer:
7:11
Step-by-step explanation:
To find the ratio, we must find the number of toys in the second box and the total number of toys in both boxes. First, we know that there are 7 toys in the second box. So our ratio is looking like this so far: 7:___.
Next, we must find the total. The total is 4+7 because we need to find the total number of toys in both boxes, and 4+7 is 11. The ratio is 7:11. So now, we finished our ratio.
interpreting a z score from a sample proportion. suppose that you conduct a hypothesis test about a population proportion and calculate the z score to be 0.47. which of the following is the best interpretation of this value? for the problems which are not a good interpretation, indicate the statistical idea being described. a. the probability is 0.47 that the null hypothesis is true. this is not a good interpretation of for the z score what we are computing is the p() b. if the null hypothesis were true, the probability would be 0.47 of obtaining a sample proportion as far as observed from the hypothesized value of the population proportion. c. the sample proportion is 0.47 standard errors greater than the hypothesized value of the population proportion. d. the sample proportion is equal to 0.47 times the standard error. e. the sample proportion is 0.47 away from the hypothesized value of the population. f. the sample proportion is 0.47
The best interpretation of the z score of 0. 47 from the sample proportion is C. The sample proportion is 0.47 standard errors greater than the hypothesized value of the population proportion.
What does the z - score represent ?The z-score, also known as the standard score, represents the number of standard deviations a data point or observation is away from the mean of a distribution.
A sample proportion with a z-score of 0.47 can be best understood as the sample proportion is 0.47 standard errors higher than the population proportion's estimated value.
This means that the observed sample proportion is 0.47 standard deviations above the hypothesized population proportion under the null hypothesis.
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Select the conic section represented by the equation. 2x + 5y - 7 = 0 ellipse parabola point hyperbola line circle
The conic section represented by the equation. 2x + 5y - 7 = 0 is a line
Selecting the conic section of the equationThe given equation is 2x + 5y - 7 = 0.
To determine the conic section represented by this equation, we can use the discriminant D:
D = B^2 - 4AC
where A, B, and C are the coefficients of x^2, xy, and y^2, respectively, in the general form of the conic section equation Ax^2 + Bxy + Cy^2 + Dx + Ey + F = 0.
In this case, A = 0, B = 0, and C = 0 (since there are no x^2, xy, or y^2 terms), so the discriminant is:
D = 0^2 - 4(0)(0) = 0
Since the discriminant is 0, the conic section represented by the equation 2x + 5y - 7 = 0 is a degenerate case, which is a line.
Therefore, the answer is "line".
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while shopping, sofia noticed that her favorite bag of chips were on sale for $5 for 2 bags. how much would 7 bags cost?
Sofia's favorite bag of chips were on sale for $5 for two bags. If she wanted to buy seven bags, the cost would be $17.50.
To calculate this, we need to use the formula for finding the total cost of a given number of items: Total Cost = Number of Items x Cost Per Item.In this case, we need to find the total cost of seven bags, so the equation looks like this: Total Cost = 7 x $5.
We can solve this equation by multiplying the two numbers together. 7 multiplied by 5 equals 35. However, the question is asking us to find the total cost of seven bags, which is $17.50. To convert the answer from 35 to 17.50, we need to divide 35 by two: 35 divided by 2 equals 17.50.
Therefore, the cost of seven bags of Sofia's favorite chips would be $17.50.
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You deposit $800 in an account that earns simple interest. The difference between the total interest earned after 7 years and the total interest earned after 3 years is $64. What is the annual interest rate?
Answer:
Step-by-step explanation:
F(x)=1/x squared -3x +1 then iind the inverse
The inverse function for the given function F(x)=1/x² -3x +1 is given by
f⁻¹(x) =(3 ± √(9 + 4/(x - 1))) /2.
Function f(x) is equals to,
F(x)=1/x² -3x +1
Inverse of a function, we need to swap the positions of the x and y variables and then solve for y.
Let's start with the original function
f(x) = 1/x^2 - 3x + 1
Now we will swap x and y,
⇒ x = 1/y^2 - 3y + 1
Next, Solve for y in terms of x
⇒ x = 1/y^2 - 3y + 1
⇒ x - 1 = 1/y^2 - 3y
⇒ 1/(x - 1) = y^2 - 3y
⇒ 1/(x - 1) = y(y - 3)
⇒ y(y - 3) = 1/(x - 1)
⇒ y^2 - 3y - 1/(x - 1) = 0
Using the quadratic formula, solve for y to get inverse function we have,
y = (3 ± √(9 + 4/(x - 1))) / 2
Therefore, the inverse function of f(x) is equal to f⁻¹(x) =(3 ± √(9 + 4/(x - 1))) /2.
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The above question is incomplete, the complete question is:
F(x)=1/x squared -3x +1 then Find the inverse
A total of 646 tickets were sold for the school play. They were either adult tickets or student tickets. There were 54 fewer student tickets sold than adult tickets. How many adult tickets were sold?
Answer:
64 im pretty cxsure
Step-by-step explanation:
The sales tax rate is 10%. If Ariana buys a cowboy hat priced at $25, how much tax will she pay?
Answer:
$27.50
Step-by-step explanation:
If the sales tax rate is 10%, then Ariana will pay 10% of the price of the cowboy hat as tax.
To calculate the amount of tax Ariana will pay:
First, we need to calculate the amount of the tax by multiplying the price of the cowboy hat by the sales tax rate: 0.10 x $25 = $2.50
So, the amount of tax that Ariana will pay is $2.50.
Therefore, Ariana will pay $2.50 in tax when she buys the cowboy hat priced at $25. Her total cost will be $25 + $2.50 = $27.50.
Answer:
2.50$
Step-by-step explanation:
Hope that helps ✌
Whereas the carbohydrate and fat you eat is used mostly to give you energy, protein is used mostly to build and maintain your body.
True False
The statement "Whereas the carbohydrate and fat you eat is used mostly to give you energy, protein is used mostly to build and maintain your body" is True.
What are carbohydrates, fats, and proteins?
Carbohydrates, fats, and proteins are the three macronutrients that supply our bodies with energy.
All of these nutrients, particularly proteins, are required for the development and maintenance of the human body.In terms of providing energy, carbohydrates and fats are the most effective.
Carbohydrates are the body's primary source of energy. When you consume carbohydrates, they are broken down into glucose, which is transported throughout the body to be used as energy.
Fat is the second-most efficient source of energy, and it is utilized when carbohydrate stores are depleted. Fats are broken down into fatty acids and transported throughout the body, where they are utilized as an energy source. Proteins are not the body's preferred source of energy; instead, they are mostly used to build and repair tissues in the body.
In summary, while carbohydrates and fats are primarily used to produce energy, protein is mostly used for body maintenance and growth.
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PLS HELP......!
Fill in the blanks to describe each sequence in words. Then write the missing terms.
• Pyramidal Sequence: Each term in the sequence is the (BLANK) of a perfect square and all perfect squares before it.
1, (BLANK) , 14, 30, (BLANK) , 91, ...
• Fibonacci Sequence: Each term in the sequence is the (BLANK) of the 2 terms before it.
1, 1, 2, 3, (BLANK) , 8, 13, (BLANK) , 34, ...
you have to worry about perfect multicollinearity in the multiple regression model because a. many economic variables are perfectly correlated. b. the ols estimator is no longer blue. c. the ols estimator cannot be computed in this situation.
No, you do not have to worry about perfect multicollineariy in the multiple regression model.
Perfect multicollinearity occurs when two or more independent variables are perfectly correlated, and it can lead to inaccurate estimates of the coefficients. The Ordinary Least Squares (OLS) estimator can still be computed in this situation, but the standard errors of the coefficients will be inflated. To minimize the effects of multicollinearity, you can use regularization methods such as Ridge Regression or Lasso Regression.
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an led light bulb is 40% efficient, compared to an incandescent, which is 5% efficient. what exactly do these numbers mean?
An LED light bulb is 40% efficient, compared to an incandescent, which is 5% efficient which means that an LED light bulb will convert 40% of the energy used into visible light, while an incandescent light bulb will only convert 5% of the energy used into visible light.
The other 95% of the energy used by an incandescent bulb is lost as heat, making it less efficient. LEDs are much more energy efficient than incandescent bulbs. LEDs are able to produce the same amount of light as an incandescent bulb with only a fraction of the energy. This is because LEDs emit light in a narrow spectrum which reduces energy loss due to the amount of light that is not visible to the human eye. In addition, LEDs do not contain filaments that require power to heat up, meaning that much less energy is wasted as heat.
LEDs also have a longer lifespan than incandescent bulbs. This is due to the fact that LEDs have no filament to burn out, meaning they can last up to 50,000 hours or more. On the other hand, an incandescent bulb typically has a lifespan of around 1,000 hours. This means that an LED light bulb can potentially last up to 50 times longer than an incandescent bulb.
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