After about 15.7 months, the apartment complex will have 800 occupied units.
Logistic growth is a type of growth in which the growth rate of a population decreases as the population size approaches its maximum value. In this case, the apartment complex has a maximum capacity of 1500 units.
Starting with 15 occupied units and growing at a rate of 10% per month, the number of occupied units can be modeled by a logistic function.
To find the number of months it takes to reach 800 occupied units, we need to solve for the time when the logistic function equals 800.
Let P(t) be the number of occupied units at time t (in months), then we have:
P(t) = 1500 / (1 + 1485\(e^{(-0.1t)}\))
We want to find t such that P(t) = 800. Solving for t, we get:
t = -10 ln(1 - 4/37) ≈ 15.7 months
This means that after about 15.7 months, the apartment complex will have 800 occupied units.
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What is the principal square root of 36?
A. 6
B. 7
C. 8
D. 9
Answer:
A. 6
Step-by-step explanation:
square root is the number that when multplied by itself will give you the specified amount.
6 x 6 = 36
HELP ME PLEASE!!!
I will give brainlist to whoever helps me!!!!
Answer: t=15
Step-by-step explanation:
ST=9. BC=3
ST/BC=
9/3=3 ==> with this information, we can conclude that triangle ABC needs to be stretched by a scale factor of 3 in order to become triangle RST.
t=RS
RS=AB*3
RS=5*3
RS=15
t=15
there are x girls in a class, and their average height is m inches. in the same class, there are y boys with an average height of n inches. what is the average height of all the students in the class?
The average of height of x girls and y boys with m and n height is (mx + ny)/(x + y).
The average of any value is calculated by the formula -
Average = sum of the height of students ÷ total number of students
Based on mentioned information, the average can be calculated through individually calculating numerator and denominator.
Sum of the heights of girls in a class = m × x
Sum of the height of boys in a class = n × y
Total number of students in a class = x + y
Keep the value in formula -
Average = (mx + ny)/(x + y)
Thus, average height is (mx + ny)/(x + y).
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The length of time, y hours, it takes to put a jigsaw puzzle together is inversely proportional to the number of children, x, working on it. It takes 16 children 6 hours to put the jigsaw puzzle together. How many children are needed to put the same jigsaw puzzle together in 4 hours?
Answer:
24 children
Step-by-step explanation:
If the length of time, y hours, it takes to put a jigsaw puzzle together is inversely proportional to the number of children, x, this is represented as;
\(y \alpha \frac{1}{x}\\y =\frac{k}{x}\)
k is the constant of proportionality
If it takes 16 children 6 hours to put the jigsaw puzzle together, this means at x = 16, y = 6
Substitute:
6 = k/16
k = 6*16
k = 96
W are to find number of children needed to put the same jigsaw puzzle together in 4 hours, this is done by substituting k = 96 and y = 4 into the expression y = k/x
y = 96/4
y = 24
Hence it will take 24 children to put the same jigsaw puzzle together in 4 hours
what is the margin of error, using a 95% confidence interval, for estimating the true population for home delivery truck drivers
The margin of error, using a 95% confidence interval, for estimating the true population proportion for home delivery truck drivers is approximately 0.0897.
The margin of error is a measure of the uncertainty in the estimate of a population parameter based on a sample. In this case, we are estimating the true population proportion for home delivery truck drivers.
To calculate the margin of error using a 95% confidence interval, we need to know the sample size and the sample proportion.
Step 1: Determine the sample size. The larger the sample size, the smaller the margin of error.
Step 2: Calculate the sample proportion. This is the proportion of the sample that possesses the characteristic of interest (in this case, being a home delivery truck driver).
Step 3: Use the formula for margin of error:
Margin of Error = Z * sqrt((p * (1-p))/n)
where Z is the z-score associated with the desired confidence level (in this case, 95% confidence level), p is the sample proportion, and n is the sample size.
Step 4: Look up the appropriate z-score for a 95% confidence level. The z-score for a 95% confidence level is approximately 1.96.
Step 5: Plug in the values into the formula and calculate the margin of error.
For example, if the sample size is 100 and the sample proportion is 0.70, the margin of error would be:
Margin of Error = 1.96 * sqrt((0.70 * (1-0.70))/100)
= 1.96 * sqrt((0.70 * 0.30)/100)
= 1.96 * sqrt(0.21/100)
= 1.96 * sqrt(0.0021)
= 1.96 * 0.0458
= 0.0897 (rounded to 4 decimal places)
So, the margin of error, using a 95% confidence interval, for estimating the true population proportion for home delivery truck drivers is approximately 0.0897.
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Choose the graph below that represents the following system of inequalities: (1 point)
y ≥ −3x + 1
y ≤ 1 over 2 x + 3
Graph of two lines that intersect at one point. Both lines are solid. One line passes through points negative 2, 2 and 0, 3 and is shaded above the line. The other line passes through points 0, 1 and 1, negative 2 and is shaded above the line.
Graph of two lines that intersect at one point. Both lines are solid. One line passes through points negative 2, 2 and 0, 3 and is shaded below the line. The other line passes through points 0, 1 and 1, negative 2 and is shaded above the line.
Graph of two lines that intersect at one point. Both lines are solid. One line passes through points negative 2, 2 and 0, 3 and is shaded below the line. The other line passes through points 0, 1 and 1, negative 2 and is shaded below the line.
Graph of two lines that intersect at one point. Both lines are solid. One line passes through points negative 2, 2 and 0, 3 and is shaded above the line. The other line passes through points 0, 1 and 1, negative 2 and is shaded below the line.
Answer:
How much
Step-by-step explanation:
What is the value of x?
Answer:
i think it might be C
Step-by-step explanation:
very sorry if it's wrong
12. Write the MATLAB statements required to calculate f(t) using the following equation for values of t € [-9,9] in steps of 0.5. f(t) = { (-3t² +5 t 20 3t² +5 t < 0 13. Write a MATLAB function named UniGen that generates a specified number (n) of random values that are uniformly distributed on any given interval specified by values a and b, that is, [a, b].
12. MATLAB code: `f = (-3*t.^2 + 5*t + 20).*(t < 0) + (3*t.^2 + 5*t).*(t >= 0)`
13. MATLAB function: `function random_values = UniGen(n, a, b); random_values = (b - a) * rand(n, 1) + a; end`
MATLAB code to calculate f(t) using the given equation:
t = -9:0.5:9; % Generate values of t from -9 to 9 in steps of 0.5
f = zeros(size(t)); % Initialize f(t) vector
for i = 1:numel(t)
if t(i) < 0
f(i) = -3*t(i)^2 + 5*t(i) + 20;
else
f(i) = 3*t(i)^2 + 5*t(i);
end
end
% Display the results
disp('t f(t)');
disp('--------');
disp([t' f']);
```
This code generates values of `t` from -9 to 9 in steps of 0.5 and calculates `f(t)` based on the given equation. The results are displayed in a tabular format showing the corresponding values of `t` and `f(t)`.
13. MATLAB function UniGen to generate uniformly distributed random values:
function random_values = UniGen(n, a, b)
% n: Number of random values to generate
% a: Start of the interval
% b: End of the interval
random_values = (b - a) * rand(n, 1) + a;
end
This MATLAB function named `UniGen` generates `n` random values that are uniformly distributed on the interval `[a, b]`. It utilizes the `rand` function to generate random values between 0 and 1, which are then scaled and shifted to fit within the specified interval `[a, b]`. The generated random values are returned as a column vector.
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3. In the grid below, draw a polygon with at least 5 sides that has an area of 30cm. Explain how you know your polygon has an area of 30cm
The polygon is drawn and attached
How to get the areaThe polygon attached is a composite polygon involving a square and a triangle
The square has side of 5 cm and area of a square is calculated using the formula
length * width
where
length = width = 5 cm
Area of a square = 5 * 5 = 25 square cm
The triangle has a base of 5 cm and height of AB = 2 cm, area of a triangle is given by the formula
= 1/2 * base * height
= 1/2 * 5 * 2
= 2.5 * 2
= 5 square cm
adding the two areas we have
= 25 + 5
= 30 square cm
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What is the 37th term of the arithmetic sequence with the first term -39 and the common difference of 8.
Answer:
\(a_{37}=249\)
Step-by-step explanation:
A sequence that has a common difference is an arithmetic sequence:
\(a_n=a_1+(n-1)d\)
where aₙ is the nth term, n is the index, and d is the common difference.
In your question:
n = 37a₁ = -39d = 8Plug those into the formula:
\(a_{37}=-39+(37-1)8\)
Then solve:
\(a_{37}=-39+(36)8\\a_{37}=-39+288\\a_{37}=249\)
SQL (no data required)
Show a list of product names and unit prices ranked by unit
price into three categories based on price: 1, 2, 3. The
highest-priced products will be marked with a 1, the second
To generate a list of product names and unit prices ranked by unit price into three categories (1, 2, 3) based on price, you can use a SQL query with the RANK() function.
The highest-priced products will be marked with a 1, the second-highest-priced products with a 2, and so on.
In SQL, you can use the RANK() function along with the ORDER BY clause to rank the products based on their unit prices. The RANK() function assigns a rank to each row in the result set based on the specified ordering criteria. Here's an example SQL query to achieve this:
In this query, products is the name of the table containing the product information. We select the product_name and unit_price columns from the table. The RANK() OVER (ORDER BY unit_price DESC) part ranks the rows based on the unit_price column in descending order, with the highest prices receiving a rank of 1.
The result of this query will include the product names, unit prices, and the assigned price ranks. You can then filter the results based on the price ranks to categorize the products into three categories (1, 2, 3) based on their price rankings.
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Rob sells electronics and earns $625 per week, plus 12% of his sales. Last week, he sold $3250 worth of electronics. What was his total earnings for last week?
Answer:
$1,015
Step-by-step explanation:
Given that:
Weekly earning = $625
Commission = 12% of sales
sales made last week = $3250
Last week earning = weekly earning + commision on sale
Commission on sale = 12% of sales
Commission on sale = (0.12 * 3250) = $390
Last week earning = weekly earning + commision on sale
Last week earning = $625 + $390 = $1,015
In a particular card game, each player begins with a hand of 2 cards, and then draws 5 more. Calculate the probability that the hand will contain four of a kind (4 cards of one value, with the other cards of 3 different values). The probability is (Round to four decimal places as needed.)
The probability of getting four of a kind in a hand of 7 cards is approximately 0.0001813.
To calculate the probability of getting four of a kind in a hand of 7 cards, we can break it down into two steps:
Step 1: Calculate the probability of getting four cards of the same value.
The first card can be any value, so the probability is 1. The second card must match the value of the first card, so the probability is 3/51 (there are 3 remaining cards of the same value out of the remaining 51 cards). The third and fourth cards must also match the same value, so the probabilities are 2/50 and 1/49, respectively.
Step 2: Calculate the probability of getting three different cards for the remaining three cards.
After getting four cards of the same value, there are 48 cards remaining. The first of the remaining three cards can be any value other than the four of a kind, so the probability is 48/48. The second card must be a different value than the first card, so the probability is 36/47. The third card must be different from the first two, so the probability is 24/46.
Multiplying the probabilities from Step 1 and Step 2 together, we get:
(1) × (3/51) × (2/50) × (1/49) × (48/48) × (36/47) × (24/46) = 0.0001813
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According to the information we can infer that the probability that the hand will contain four of a kind in the given card game is approximately 0.0015.
How to calculate the probability of obtaining a four of a kind hand?To calculate the probability of obtaining a four of a kind hand, we need to consider the number of ways to get a four of a kind hand divided by the total number of possible hands.
First, let's calculate the number of ways to get a four of a kind hand. We have 13 different card values (Ace, 2, 3, ..., 10, Jack, Queen, King), and for each value, we need to choose 4 cards out of the 4 available in the deck. So, there are 13 ways to choose the four cards of the same value.
Next, we need to calculate the number of ways to choose the remaining 3 cards with different values. We have 12 remaining card values (excluding the one used for the four of a kind), and for each value, we need to choose 1 card out of the 4 available. Therefore, there are 12 * 4 * 4 = 192 ways to choose the remaining 3 cards.
Now, let's calculate the total number of possible hands. In this card game, each player starts with a hand of 2 cards and then draws 5 more, so the total number of possible hands is given by the combination of 7 cards taken from a deck of 52 cards, which is denoted as C(52, 7) = 133,784,560.
Finally, we can calculate the probability by dividing the number of ways to get a four of a kind hand by the total number of possible hands:
Probability = (13 * 192) / 133,784,560 ≈ 0.0015So, we can conclude that the probability of obtaining a four of a kind hand in the given card game is approximately 0.0015, rounded to four decimal places.
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In inferential statistics, the objective is to determine how probable it is that:
The alternative hypothesis is true.
The null hypothesis is true.
The alternative hypothesis is false.
The null hypothesis is false.
In inferential statistics, the objective is to determine the probability of the alternative hypothesis being true or the null hypothesis being true.
This involves using sample data to make inferences and draw conclusions about a larger population. By analyzing the data and performing statistical tests, we assess the likelihood of the alternative hypothesis or the null hypothesis being accurate.
The alternative hypothesis represents a claim or statement that contradicts the null hypothesis and suggests that there is a significant relationship or difference between variables. To determine its probability, statistical methods such as hypothesis testing and p-values are employed. These methods evaluate the strength of evidence against the null hypothesis and support the alternative hypothesis when the evidence is substantial.
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Find the missing sides of the triangle. Leave your answers in simplest radical form. Please help!
5 times the quanity x increased by seven, minus
4 Cubed
The mathematical expression can be written as \(5(x+7)-4^3\)
Any combination of terms that have undergone operations like addition, subtraction, multiplication, division, etc. is known as an algebraic expression (or variable expression). Let's use the equation 5x + 7 as an example. Thus, 5x + 7 is an illustration of an algebraic expression.
We frequently have to understand a written phrase in order to write an expression. For instance, the notation x + 6 can be used to represent the phrase "6 added to some number," where x stands for the unknown value.
The algebraic properties most frequently utilized to simplify algebraic statements are associative, commutative, and distributive.
Here the quantity x is increased by 7 and the sum is multiplied by 5.
so we get 5(x+7).
Now 4 cubed is subtracted from the resulting expression.
Therefore the expression looks like \(5(x+7)-4^{3}\) .
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the class average on a statistics test is 62 marks with a standard deviation of 12 marks. what minimum mark must a student obtain to be in the top 9% of the class?
Answer:
Step-by-step explanation:
the minimum mark the student should obtain is 32
PLS HELP ASAP! GIVING BRAINLIST
Answer:
f(x)=(3x+6)(x-2)
Step-by-step explanation:
(3x+6)
(x-2)
Use a table of t-values to estimate the P-value for the specified one-mean t-test.
Two-tailed test, n = 21, t = -2.509
a. 0.02 < P < 0.05
b. 0.05 < P < 0.10
c. 0.01 < P < 0.025
d. 0.005 < P < 0.01
A table of t-values to estimate the P-value for the specified one-mean t-test. Two-tailed test, n = 21, t = -2.509 because we reject the null hypothesis and conclude that there is significant evidence to support the alternative hypothesis. The correct option is a.
To estimate the P-value for the specified one-mean t-test, we need to refer to a table of t-values. Given that it is a two-tailed test with a sample size of 21 and a calculated t-value of -2.509, we need to find the area in both tails beyond -2.509.
Looking up the t-value of -2.509 in the t-table, we find that the closest value is -2.528 for degrees of freedom (df) equal to 20. Since the table usually provides critical values for specific significance levels, we need to find the corresponding significance level for -2.528.
Comparing the t-value of -2.528 with the values in the table, we see that it falls between the critical values for a significance level of 0.02 and 0.05. Therefore, the P-value for the specified t-test is between 0.02 and 0.05. Thus, the correct answer is option a.
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question 2 and 3 please
2. a. C. 3. a. C. Use implicit differentiation for each of the following. x² - y² = 1 √x + √√y = 5 √√x Y 5x2+1' E y² = 2xy-3, (2, 3) b. d. ,X = 2 x² + xy + y² = 1 2x x+y -= y Find the e
The derivative of equation x²-y²=1 with respect to x is given by x/y.
The derivative of √x + √√y = 5 with respect to x is given by -(x^(1/2))/(y^(1/4)).
At the point (2, 3), the derivative of y² = 2xy - 3 with respect to x is 3/5.
At the point (2, -1), the derivative of x² + xy + y² = 1 with respect to x is -3/2.
Part 1: Implicit differentiation.
To find the derivative of both sides of x²-y²=1 with respect to x using implicit differentiation:
2x - 2y * dy/dx = 0
2y * dy/dx = 2x
dy/dx = x/y
Hence, the derivative of x²-y²=1 with respect to x is given by x/y.
2. To find the derivative of both sides of √x + √√y = 5 with respect to x using implicit differentiation:
(1/2) * x^(-1/2) + (1/2) * (y^(1/4))^(-3/4) * (1/4) * y^(-3/4) * dy/dx = 0
dy/dx = - (x^(1/2))/(y^(1/4))
Hence, the derivative of √x + √√y = 5 with respect to x is given by -(x^(1/2))/(y^(1/4)).
Part 2: Evaluating derivatives at a given point
3. The derivative of y² = 2xy - 3 with respect to x is given by:
2y * dy/dx = 2y - 2x * dy/dx
2y * dy/dx + 2x * dy/dx = 2y
dy/dx * (2y + 2x) = 2y
dy/dx = 2y/(2y + 2x)
At the point (2, 3), the derivative is:
dy/dx = 2(3)/(2(3) + 2(2))
= 6/10
= 3/5
4. The derivative of x² + xy + y² = 1 with respect to x is given by:
2x + y + x * dy/dx + 2y * dy/dx = 0
dy/dx = -(2x + y)/(x + 2y)
At the point (2, -1), the derivative is:
dy/dx = -(2(2) + (-1))/(2 + 2(-1))
= -3/2
Conclusion:
The derivative of x²-y²=1 with respect to x is given by x/y.
The derivative of √x + √√y = 5 with respect to x is given by -(x^(1/2))/(y^(1/4)).
At the point (2, 3), the derivative of y² = 2xy - 3 with respect to x is 3/5.
At the point (2, -1), the derivative of x² + xy + y² = 1 with respect to x is -3/2.
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MODELING REAL LIFE The graph represents the value $y$ of a boat after $x$ years. Find the value of the boat after 2 years and after 8 years.
A graph titled, value of a boat. The horizontal axis is labeled year. The vertical axis is labeled value (thousands of dollars). The graph shows a curve that passes through the points, ordered pair 0 comma 30, ordered pair 1 comma 24, ordered pair 3 comma 15.36, and ordered pair 5 comma 10.
After 2 years, the value of the boat is $
.
After 8 years, the value of the boat is $
.
After 2 years, the value of the boat is, $19,200
After 8 years, the value of the boat is, $5,033.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
Given that;
The graph represents the value $y of a boat after x years.
Here, A graph titled, value of a boat. The horizontal axis is labeled year. The vertical axis is labeled value (thousands of dollars).
And, The graph shows a curve that passes through the points, ordered pair 0 comma 30, ordered pair 1 comma 24, ordered pair 3 comma 15.36, and ordered pair 5 comma 10.
Now, The equation of graph is,
⇒ y = k (a)ˣ
Since, The graph is passes through the point (0, 30),
⇒ 30 = k × 1
⇒ k = 30
Hence, Calculate the ratio between y values:
⇒ 24/30
⇒ 4/5
So, The equation is,
⇒ y = k (a)ˣ
⇒ y = 30 (4/5)ˣ
Hence, After 2 years, the value of the boat is,
⇒ y = 30 (4/5)²
⇒ y = 30 × 16/25
⇒ y = $19.2
⇒ y = $19,200
And, After 8 years, the value of the boat is,
⇒ y = = 30 (4/5)⁸
⇒ y = 5.033
⇒ y = $5,033
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Find the solution to the system of equations. y = 2x + 2 ([?], [?])
variables that indicate the distance a target is from the level achieved are called
Variables that indicate the distance a target is from the level achieved are called performance metrics or progress indicators.
Variables that indicate the distance a target is from the level achieved are called performance metrics or progress indicators. These variables help measure and track progress towards a goal by providing a quantitative or qualitative measure of how far the target is from the desired level of achievement.
Performance metrics can be represented in various forms, such as distance covered, percentage completed, points earned, or even subjective evaluations. For example, in a fitness program, a performance metric could be the number of miles run or the number of push-ups completed.
These metrics enable individuals or organizations to assess their progress and make necessary adjustments to reach their desired outcomes.
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The entries in the index of the National Codes are listed under one main term. True or False?
it helps to organize and categorize large amounts of information, making it more accessible and manageable. This organizational structure helps users to locate specific codes and information efficiently. indexing system True.
The National Codes index lists entries under one main term, which is usually a broad topic or subject area. Under each main term, there may be several subentries that provide more specific details or categories related to the main term. This type of indexing system allows users to quickly and easily find information related to a specific topic, without having to search through an entire document or database. Additionally, it helps to organize and categorize large amounts of information, making it more accessible and manageable.
In the index of the National Codes, entries are listed under one main term to ensure easy navigation and understanding of the content. This organizational structure helps users to locate specific codes and information efficiently.
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Drag each equation and coordinate to the correct location on the table. Not all equations or coordinates will be used. In the table below, quadratic equations are given in standard form. Rewrite each equation in the form that reveals the maximum or minimum value, and then identify the coordinate point of that extreme value.
which of the following equation represents a linear function a. f(x) =6x-3 b. f(x) = 7x(x+1) c.f(x) = x2+3x2 d. f(x) = x2(x-3
Answer:
a
Step-by-step explanation:
b, c, d are all x2 (a real linear equation does not have square or it will become Quadratic equation )
State the equation of the graphed function.
The equation of the graphed function is given as follows:
f(x) = x³ + 2x² - 5x - 6.
How to obtain the equation of the function?
The equation of the function is obtained considering the Factor Theorem, as a product of the linear factors of the function.
From the graph, the zeros of the function are:
x = -3.x = -1.x = 2.Hence the function is:
f(x) = a(x + 3)(x + 1)(x - 2).
In which a is the leading coefficient.
Expanding the product, we have that:
f(x) = a(x² + 4x + 3)(x - 2)
f(x) = a(x³ + 2x² - 5x - 6).
When x = 0, y = -6, hence the leading coefficient a is obtained as follows:
-6a = -6
a = 1.
Hence the function is:
f(x) = x³ + 2x² - 5x - 6.
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13x+y=4 plz help i cant get it right lol
Answer:
4
__
13
Step-by-step explanation:
look up top for explanation
Answer:
Solve for Y:
Subtract 13x
from both sides of the equation.
y=4−13x
Solve for X:
Move all terms that don't contain x
to the right side and solve.
x=4/13−y/13
Step-by-step explanation:
i think?
Food storage contains labeled with a 1.5 quart capacity must have an acutal capacity within 0.02 quarts of the capacity stated on the label. Select the equation that represnets the minimum actual capacity and maximum actual capacity allowed for products labeled as 1.5 quart food storage containers.
Answer:
Kindly check explanation
Step-by-step explanation:
Given that:
If Capacity on label = 1.5 quarts
Actual capacity will be within 0.02 quartz of the capacity stated on label
The actual capacity of the container labeled 1.5 quarts will hence equal:
Let actual capacity = a
| a - capacity in label | = 0.02
| a - 1.5 | = ± 0.02
a - 1.5 = ± 0.02
Hence,
Minimum actual capacity :
a = - 0.02 + 1.5 = 1.48
Maximum actual capacity :
a = 0.02 + 1.5 = 1.52
A cylindrical aluminum pipe of length 2.32 m has an inner radius of 1.55×10−3 m and an outer radius of 3.05×10−3 m. The interior of the pipe is completely filled with copper. What is the resistance of this unit? (Hint: Imagine that the pipe is connected between the terminals of a battery and decide whether the aluminum and copper parts of the pipe are in series or in parallel.) Number Units
The resistance of the unit is determined by the copper portion of the pipe, as the aluminum portion does not contribute to the overall resistance.
To find the resistance of the unit, we need to consider the resistivity and dimensions of the copper portion.
Given:
Length of the pipe (l) = 2.32 m
Inner radius of the pipe (r1) = 1.55×10^(-3) m
Outer radius of the pipe (r2) = 3.05×10^(-3) m
We can assume that the copper fills the entire interior of the pipe, creating a cylindrical conductor.
The resistance of a cylindrical conductor can be calculated using the formula:
R = (ρ * l) / A
Where:
R is the resistance
ρ is the resistivity of the material
l is the length of the conductor
A is the cross-sectional area of the conductor
In this case, the copper portion of the pipe contributes to the resistance, while the aluminum portion does not.
To find the cross-sectional area of the copper portion, we subtract the cross-sectional area of the inner cylinder (r1) from the cross-sectional area of the outer cylinder (r2):
A = π * (r2^2 - r1^2)
Once we have the cross-sectional area, we can calculate the resistance using the resistivity of copper.
The resistivity of copper (ρ) is approximately 1.68 × 10^(-8) Ω·m.
Now we can calculate the resistance:
R = (ρ * l) / A
R = (1.68 × 10^(-8) Ω·m) * (2.32 m) / [π * ((3.05×10^(-3) m)^2 - (1.55×10^(-3) m)^2)]
Calculating the value will give us the resistance of the unit, considering only the copper portion of the pipe.
In summary, the resistance of the unit is determined by the copper portion of the pipe, and we can calculate it using the resistivity of copper, the length of the pipe, and the cross-sectional area of the copper portion. The aluminum portion does not contribute to the resistance, so we only consider the copper when calculating the resistance value.
Learn more about cross-sectional area here:
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