Trevor spent a mean amount of $0.85 per day on snacks during
Week 1.
We have,
To determine during which week Trevor spent a mean amount of $0.85 per day on snacks, we need to calculate the mean (average) amount spent per day for each week and find the week that matches $0.85.
Let's calculate the mean amount spent per day for each week:
Week 1:
= (0.50 + 0.75 + 0.50 + 1.00 + 1.25 + 1.25 + 0.75 + 0.25 + 1.00) / 9
= $0.86 (approximately)
Week 2:
= (1.00 + 0.50 + 0.75 + 0.25 + 0.25 + 1.25 + 0.25) / 7
= $0.61 (approximately)
Week 3:
= (0.75 + 1.00) / 2
= $0.88
Week 4:
= (1.25 + 1.00 + 1.00 + 1.25 + 0.50) / 5
= $1.00
From the calculations, we can see that the mean amount spent per day for Week 1 is closest to $0.85.
Therefore,
Trevor spent a mean amount of $0.85 per day on snacks during
Week 1.
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Ian stacks 5 glasses of juice. Each glass contains 185 milliliters of juice. Find the total volume of juice in the 5 glasses
The total volume of juice in the 5 glasses is 925 milliliters. To find the total volume of juice in the 5 glasses, we simply need to multiply the volume of juice in one glass by the number of glasses.
In this case, each glass contains 185 milliliters of juice and Ian has stacked 5 glasses, so we can use the formula:
Total volume of juice = Volume of juice per glass x Number of glasses
Plugging in the numbers, we get:
Total volume of juice = 185 ml/glass x 5 glasses
Total volume of juice = 925 ml
Therefore, the total volume of juice in the 5 glasses is 925 milliliters. This is a simple example of using multiplication to find the total quantity of something when we know the amount in one unit and the number of units. In this case, we were able to find the total volume of juice by multiplying the volume in one glass by the number of glasses.
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answer questions 2-20 please 1 and 5-7 are already answered no need to correct them does not need to be correct but please have relistic answers : )
The Pythagorean Theorem with regards to the relationships between the lengths of the sides of a right triangle indicates that we get;
2. x = 51
3. x = 50
4. x = 82
8. x = 2·√(77)
9. x = √(39)
10. x = 2·√(19)
11. x = 2·√(154)
12. x = 3·√3
13. x = 6·√(13)
16. A right triangle
17. A right triangle
18. The triangle is not a right triangle
19. An obtuse triangle
20. An obtuse triangle
What is the Pythagorean Theorem?The Pythagorean Theorem states that the square of the length of the hypotenuse side of a right triangle is equivalent to the sum of the squares of the lengths of the other two sides.
2. x² = 45² + 24² = 2601
x = √(2601) = 51
3. x² = 30² + 40² = 2500
x = √(2500) = 50
x = 50
4. x² = 80² + 18² = 6724
x = √(6724) = 82
x = 82
8. According to the Pythagorean Theorem, in the right triangle we get;
x² = 18² - 4² = 308
x = 2·√(77)
9. x² = 8² - 5² = 39
x = √(39)
10. x² = 20² - 18²
x² = 76
x = √(76) = 2·√(19)
x = 2·√(19)
11. x² = 25² - 3² = 616
x = √(616) = 2·√(154)
x = 2·√(154)
12. x² = 6² - 3² = 27
x = √(27)
x = 3·√3
13. x² = 22² - 4² = 468
x = √(468) = 6·√(13)
x = 6·√(13)
16. A triangle is a right triangle if the square of the side that is the longest is equivalent to the square of the other two sides, therefore;
17² = 289
15² + 8² = 289
Therefore, the triangle is a right triangle
17. 45² = 2025
27² + 36² = 2025
Therefore, the triangle is a right triangle
18. 11² = 121
9² + 4² = 97
Therefore, the triangle is not a right triangle
19. 6² = 36
4² + 3² = 25
The square of the side that is longest is larger than the sum of the squares of the other two sides, which indicates that the angle facing the longest side is lar1ger than 90°, and the triangle is an obtuse triangle.
20. 16² = 256
9² + 11² = 202
16² > 9² + 11²; Therefore, the triangle is an obtuse triangle
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Use Newton's method to obtain the third approximation, X2, of the positive fourth root of 3 by calculating the third approximation of the right 0 of f(x)=x*- 3. Start with Xo = 1. The third approximation of the fourth root of 3 determined by calculating the third approximation of the right 0 of f(x) = x4 - 3, starting with Xo = 1, is (Round to four decimal places.) -
To use Newton's method to find the third approximation, X2, of the positive fourth root of 3, we follow these steps:
1. Define the function f(x) and its derivative, f'(x): f(x) = x^4 - 3 f'(x) = 4x^3
2. Start with an initial guess, X0 = 1.
3. Apply Newton's method formula to find the next approximations:
Xn+1 = Xn - f(Xn) / f'(Xn)
4. Calculate the first approximation, X1: X1 = X0 - f(X0) / f'(X0) X1 = 1 - (1^4 - 3) / (4 * 1^3) X1 = 1 - (-2) / 4 X1 = 1 + 0.5 X1 = 1.5
5. Calculate the second approximation, X2: X2 = X1 - f(X1) / f'(X1) X2 = 1.5 - (1.5^4 - 3) / (4 * 1.5^3) X2 = 1.5 - (5.0625 - 3) / 13.5 X2 = 1.5 - 2.0625 / 13.5 X2 = 1.5 - 0.15296 X2 ≈ 1.3470
So, the third approximation of the positive fourth root of 3, determined by calculating the third approximation of the right 0 of f(x) = x^4 - 3, starting with X0 = 1, is approximately 1.3470 (rounded to four decimal places).
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andy can run 20 miles in 6 hours. how much miles can he run in 1 hour.
I see that this is a rate of change time of problem
If andy can run 20 miles in 6 hours, than our goal is to find out how much he runs in a hour
So, we just have to divide 20 by 6.
It's sorta hard to explain
Questions?
Anyhow, the answer is around 3.3 miles per hour
Answer:
3.33 miles
Step-by-step explanation:
We Know
Andy can run 20 miles in 6 hours.
How many miles can he run in 1 hour?
We Take
20 / 6 ≈ 3.33 miles
So, Andy can run about 3.33 miles in 1 hour.
Find the volume of the cone in cubic feet. Use 3. 14 for π and round your answer to the nearest tenth.
(1 m ≈ 3. 2808 ft)
135,648 ft3
3,843. 8 ft3
4,790,189. 2 ft3
444,925. 4 ft3
The volume of the cone in cubic feet is approximately 0.0 cubic feet
We need to convert the given dimensions from inches to feet before calculating the volume in cubic feet.
The height of the cone is 6 inches, which is equivalent to 6/12 = 0.5 feet (since there are 12 inches in 1 foot).
The radius of the cone is 4.5 inches, which is equivalent to 4.5/12 = 0.375 feet.
Using the formula for the volume of a cone, which is:
V = (1/3) * π * r^2 * h
Substituting the given values, we get:
V = (1/3) * 3.14 * (0.375 feet)^2 * 0.5 feet
V ≈ 0.0221 cubic feet
Rounding this to the nearest tenth gives:
V ≈ 0.0 cubic feet
Therefore, the volume of the cone in cubic feet is approximately 0.0 cubic feet. None of the given options match this result.
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Alguien q pueda explicar esto
To add fractions with unlike denominators, we need to find the least common multiple of the denominators. In this case, the least common multiple of 3 and 4 is 12. So, we must find equivalents of each fraction with a denominator of 12.
How to add the fractions?To add fractions with unlike denominators, we need to find the least common multiple of the denominators. In this case, the least common multiple of 3 and 4 is 12. So, we must find equivalents of each fraction with a denominator of 12.
Multiplying the numerator and denominator of 2/3 by 4, we get 8/12. On the other hand, multiplying the numerator and denominator of 1/4 by 3, we get 3/12.
Therefore, we can rewrite the sum as:
8/12 + 3/12
And adding the numerators, we get:
11/12
So, 2/3 + 1/4 = 11/12.
The final answer is a proper fraction, which means that the numerator is less than the denominator, and can be further simplified if necessary.
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In ΔMNO, the measure of ∠O=90°, OM = 1. 7 feet, and NO = 6. 7 feet. Find the measure of ∠N to the nearest degree
The measure of ∠N to the nearest degree is 82°.
Calculate the nearest degree?To find the measure of ∠N, we can use the Pythagorean theorem and trigonometric functions.
First, we can use the Pythagorean theorem to find the length of MN:
MN² = NO² - OM²
MN² = (6.7 feet)² - (1.7 feet)²
MN² = 44.56 feet²
MN = 6.67 feet
Now, we can use the sine function to find the measure of ∠N:
sin(N) = MN/NO
sin(N) = 6.67 feet / 6.7 feet
sin(N) ≈ 0.994
N ≈ sin⁻¹(0.994)
N ≈ 82.4°
The measure of ∠N to the nearest degree is 82°.
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The cylinder below has a height of 6 centimeters and a radius of r1. The volume of the cylinder is 302 cubic centimeters.
Find the radius of the cylinder. Round to the nearest whole centimeter.
___ centimeters
Answer:
There is a cylinder with a height of 6 centimeters and a radius of r1, which has a volume of 302 cubic centimeters. It's fascinating to see how the volume of different shapes can vary based on their dimensions.
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one serving of almonds is 1/3 cup. booker bought 2 and 2/3 cups of almonds how many servings of almonds did booker buy
Booker bought 8 servings of almonds.
How many servings of almonds did Booker buy if he purchased 2 and 2/3 cups of almonds, and one serving of almonds is 1/3 cup?
One serving of almonds is equal to 1/3 cup.
To find how many servings of almonds Booker bought, we can divide the total amount of almonds he purchased by the amount in one serving:
2 and 2/3 cups of almonds = 8/3 cups of almonds
Number of servings = (total amount of almonds purchased) / (amount in one serving)
Number of servings = (8/3) / (1/3)
Number of servings = 8/3 x 3/1
Number of servings = 8
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Some lemon, lime, and cherry lollipops are placed in a bowl. Some have a
chocolate center, and some do not. Suppose one of the lollipops is chosen
randomly from all the lollipops in the bowl. According to the table below, if it
is known to be lime, what is the probability that it does not have a chocolate
center?
OA. 35%
OB. 25%
O C. 45%
O D. 55%
See picture of diagram, I need this correct please help asap
Answer:
A (35%)
Step-by-step explanation:
Just divide what you want to find with the total. Does not have chocolate = 7. Total Lime = 20 (13 + 7) 7/20 = 0.35/35%
A person is working in the purchasing department of an appliance retailer. This month he is stocking up on washers and dryers. His
supervisor informs him that his budget this month is $12,000. He knows that the average wholesale cost of a washer over the past
year has been $250, while the average wholesale cost of a dryer has been $200. Complete parts a through h
a) What is the maximum number of washers the person can purchase within the budget?
To calculate the maximum number of washers the person can purchase within the budget, we divide the budget by the cost per washer:
$12,000 ÷ $250 = 48 washers
b) What is the maximum number of dryers the person can purchase within the budget?
To calculate the maximum number of dryers the person can purchase within the budget, we divide the budget by the cost per dryer:
$12,000 ÷ $200 = 60 dryers
c) If the person wants to purchase an equal number of washers and dryers, how many of each can he purchase?
To purchase an equal number of washers and dryers, we need to find the common factor of both 48 and 60:
48 = 2 x 2 x 2 x 2 x 3
60 = 2 x 2 x 3 x 5
The common factor is 2 x 2 x 3 = 12. So, the person can purchase 12 washers and 12 dryers within the budget.
d) If the person purchases the maximum number of washers and dryers, what is the total cost of the purchase?
To calculate the total cost of the purchase, we multiply the maximum number of washers and dryers by their respective cost:
48 washers x $250 = $12,000
60 dryers x $200 = $12,000
The total cost of the purchase is $24,000.
e) If the person purchases an equal number of washers and dryers, what is the total cost of the purchase?
To calculate the total cost of the purchase, we multiply the number of washers and dryers by their respective cost:
12 washers x $250 = $3,000
12 dryers x $200 = $2,400
The total cost of the purchase is $5,400.
f) If the person wants to spend the entire budget on washers, how many washers can he purchase?
To spend the entire budget on washers, we divide the budget by the cost per washer:
$12,000 ÷ $250 = 48 washers
g) If the person wants to spend the entire budget on dryers, how many dryers can he purchase?
To spend the entire budget on dryers, we divide the budget by the cost per dryer:
$12,000 ÷ $200 = 60 dryers
h) If the person wants to spend the entire budget and purchase an equal number of washers and dryers, how many can he purchase?
To spend the entire budget and purchase an equal number of washers and dryers, we need to divide the budget by the sum of the cost per washer and cost per dryer, then find the common factor:
($12,000 ÷ ($250 + $200)) ÷ 2 = 18
The common factor of 18 is 2 x 3 = 6. So, the person can purchase 6 washers and 6 dryers within the budget.
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The cafeteria staff made sandwiches. Each sandwich had either rye or white bread, either ham or turkey, and either cheese or no cheese. The staff made an equal number of each type of sandwich. The sandwiches were placed on a tray. Without looking, Mary will choose a sandwich. What are the chances that Mary will get a sandwich with cheese?
Responses
one eighth
one sixth
one third
one half
Answer:
Step-by-step explanation:
There are 8 equally likely sandwich options: rye and ham, rye and turkey, white and ham, white and turkey, rye and ham with cheese, rye and turkey with cheese, white and ham with cheese, white and turkey with cheese.
Since each type of sandwich was made in equal number, there are 4 sandwiches with cheese.
Therefore, the chances that Mary will get a sandwich with cheese is 4/8 or 1/2.
Answer: one half
ANSWER ASAP PLEASE
The band club has $2,100 to spend on music stands and songs. Each music stand costs $15 and each song costs $350. Let x represent the number of music stands and let y represent the number of songs.
Part A
Write an equation that describes the number of music stands and songs the band club can buy.
x +
y =
Part B
What is the greatest number of each item that the club can buy?
greatest number of music stands =
greatest number of songs =
Part A: The equation that describes the amount of music stands and songs that the band club can purchase is 15x + 350y = 2100.
Part B: The greatest number of music stands the club can buy is 6, and the greatest number of songs the club can buy is 3.
Part A:
The cost of x music stands is 15x dollars, and the cost of y songs is 350y dollars. The total cost cannot exceed $2,100, so we can write the following equation:
15x + 350y = 2100
Therefore, the equation that describes the amount of music stands and songs that the band club can purchase is 15x + 350y = 2100.
Part B:
To find the greatest number of each item the club can buy, we can use the given equation and look for integer solutions for x and y that satisfy the equation.
We can rearrange the equation to solve for y:
y = (2100 - 15x) / 350
To get integer solutions for y, we need 2100 - 15x to be divisible by 350. The largest multiple of 350 that is less than or equal to 2100 is 6*350 = 2100. So, we can try x = 0, 1, 2, 3, ..., 6 and see which values give integer solutions for y.
When x = 0, y = 6, which is an integer solution.
When x = 1, y = 5, which is not an integer solution.
When x = 2, y = 4, which is not an integer solution.
When x = 3, y = 3, which is an integer solution.
When x = 4, y = 2, which is not an integer solution.
When x = 5, y = 1, which is not an integer solution.
When x = 6, y = 0, which is an integer solution.
So, the greatest number of music stands the club can buy is 6, and the greatest number of songs the club can buy is 3.
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Your rate of pay is $36. Per hour and you bill by the quarter hour you spent four hour and 30 minutes on a client project how much would I bill for 162. Or 144
If your rate of pay is $36 per hour and you bill by the quarter hour, you would bill $162 for 4 hours and 30 minutes project.
Based on the given information, your rate of pay is $36 per hour, and you bill by the quarter hour. You spent 4 hours and 30 minutes on a client project.
To calculate the bill, first convert the 30 minutes into quarter hours: 30 minutes = 2 quarter hours. In total, you worked for 4 hours and 2 quarter hours (18 quarter hours).
Now, multiply your rate of pay ($36) by the number of quarter hours (18) and divide by 4 to account for the quarter hour billing: ($36 * 18) / 4 = $162. Therefore, you would bill the client $162 for the project.
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23. A triangular earring has side lengths of 1. 5 centimeters, 2 centimeters, and 3
centimeters. What is the approximate measure, in degrees, of the largest angle of the
triangular earring?
А
36. 3°
B.
45. 8°
C. 117. 3°
D.
134. 2°
Using cosine rule, the largest angle In the triangle is
C. 117. 3°How to find the measure of the largest angleThe angle is found first using cosine rule by the formula
cos A = (b² + c² - a²) ÷ 2bc
Solving for the largest angle
substituting the values
cos γ = (2² + 1.5² - 3²) ÷ 2 * 1.5 * 2
< γ = arc cos ( -0.4583 )
< γ = 117.28 degrees
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A textbook company will ship a box of textbooks to college students. The weight of the box in pounds can be determined by the function w(x) = 7. 5x + 2, where x is the number of textbooks in the box. The company requires a student to order at least 2 books but not more than 6 books. What is the range of the function for this situation? *
A. 2 ≤ x ≤ 6
B. 17 ≤ y ≤ 47
C. {17, 24. 5, 32, 39. 5, 47}
D. {2, 3, 4, 5, 6}
The range of the function for this situation is {17, 24.5, 32, 39.5, 47}, The correct option is C.
To find the range of the function for this situation, we need to evaluate the function for x = 2, 3, 4, 5, and 6, since these are the only valid inputs based on the problem statement.
w(2) = 7.5(2) + 2 = 17
w(3) = 7.5(3) + 2 = 24.5
w(4) = 7.5(4) + 2 = 32
w(5) = 7.5(5) + 2 = 39.5
w(6) = 7.5(6) + 2 = 47
Therefore, the range of the function for this situation is {17, 24.5, 32, 39.5, 47}, which is option C.
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How many people can fit in the passenger car of 70 feet and a width of 9 feet
Approximately 378 people can fit in a passenger car with a length of 70 feet and a width of 9 feet.
What is the volume of a car with a length of 70 feet and a width of 9 feet?To determine the number of people who can fit in a passenger car with a length of 70 feet and a width of 9 feet, we need to consider the available space inside the car and the amount of space required per person.
Assuming that the passenger car is a rectangular box shape, the volume of the car can be calculated as follows:
Volume of car = Length x Width x Height
Since we are only interested in the number of people who can fit in the car, we will assume a standard height of 6 feet for simplicity. Therefore, the volume of the car can be calculated as follows:
Volume of car = 70 feet x 9 feet x 6 feet
Volume of car = 3,780 cubic feet
Next, we need to determine the amount of space required per person. This can vary depending on the seating arrangement and the size of the individuals, but as a general rule, we can estimate that each person requires approximately 10 to 12 cubic feet of space in a seated position.
Assuming we use the lower end of that estimate and allocate 10 cubic feet of space per person, we can calculate the number of people who can fit in the car as follows:
Number of people = Volume of car / Space per person
Number of people = 3,780 cubic feet / 10 cubic feet per person
Number of people = 378 people
Therefore, if we assume a standard height of 6 feet and allocate 10 cubic feet of space per person, approximately 378 people can fit in a passenger car with a length of 70 feet and a width of 9 feet. However, it is important to note that this is just an estimate and the actual number of people who can fit in the car will depend on factors such as the seating arrangement and the size of the individuals.
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Drag each tile to the correct location, Determine the type of fee that will be charged In each situation. Joanne's brokerage firm charged her for providing investment information to help her make informed choices. Pete isn't a regular investor. He hasn't bought or sold any stock this year. His broker charged him an inacovity fee of $75 for the year. John's broker provided him with stock-trading software to manage his trading Lisa sold 50 shares of stock A on a given day. Her broker charged her $12 for this trade Reggie's broker charged him a front-end load of 2. 75% when he purchased a fund. Transaction Fee Non-transaction Fee 2021 Edmentum All rights reserved.
The type of fee that will be charged depends on the specific service provided by the broker to the client. Non-transaction fees are typically charged for account maintenance or access to investment tools, while transaction fees are charged for specific trades or transactions.
To determine the type of fee that will be charged in each situation, we need to consider the specific services that were provided by the broker to the client.
For Joanne, her brokerage firm charged her a fee for providing investment information to help her make informed choices. This type of fee is a non-transaction fee, as it is not related to a specific transaction or trade.
Pete, who hasn't bought or sold any stock this year, was charged an inactivity fee of $75 for the year by his broker. This fee is also a non-transaction fee, as it is not related to a specific trade but rather to the inactivity of the account.
John's broker provided him with stock trading software to manage his trading. This type of service is typically included in a brokerage firm's platform fee, which is a non-transaction fee that covers the cost of maintaining the software and other tools that clients can use to manage their investments.
Lisa sold 50 shares of stock A on a given day and her broker charged her $12 for this trade. This type of fee is a transaction fee, which is charged for each specific trade or transaction that a client makes.
Finally, Reggie's broker charged him a front-end load of 2.75% when he purchased a fund. This fee is a type of sales charge or commission that is applied to the initial investment and is considered a transaction fee.
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2-3 Consider the indefinite integral da. The substitution (3x - 2)2 u = 3x – 2 transforms the integral into: / None of these options are correct. 1-2 3 3 du 22 u 7 s". du 9u2 du u2 s " 0 7 u du u2
The substitution (3x - 2)2 u = 3x - 2 transforms the indefinite integral da into none of the given options. It should result in the integral of the function being expressed in terms of u rather than x.
This substitution is an example of using a change of variables to simplify an integral by transforming it into a more manageable form. This can be particularly useful when dealing with complicated integrals that are difficult to solve by other methods. Additionally, using such transforms can often provide insight into the underlying structure of the problem being studied.
Based on your question, it appears that you want to perform a substitution to transform the indefinite integral of "da" using the substitution (3x - 2)² u = 3x - 2. However, the given integral "da" doesn't seem to be correct or complete. Please provide the complete integral, and I will be happy to help you with the transformation using the given substitution.
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Write a division expression for each fraction 1/2
Answer: 1 ÷ 2
Step-by-step explanation: I think this is what you mean?
Select ALL the correct answers. Richard is renting a bike. The cost of renting a bike for the first hour is $7. He is charged $2.50 for every additional hour of renting the bike. Select all the functions that can be used to find the total amount that Richard is charged, f(n), for renting the bike for n hours. f ( n ) = 2.5 n + 7 f ( n ) = 2.5 n + 4.5 f ( 1 ) = 7 ; f ( n ) = f ( n − 1 ) + 2.5 , for n ≥ 2 f ( n ) = 4.5 n + 2.5 f ( 1 ) = 2.5 ; f ( n ) = f ( n − 1 ) + 7 , for n ≥ 2
The function that can be used to find the total amount is f(n) = 7 + (n - 1) * 2.5
Selecting the functions that can be used to find the total amountFrom the question, we have the following parameters that can be used in our computation:
The cost of renting a bike for the first hour is $7. He is charged $2.50 for every additional hour of renting the bike.This means that
f(n) = First hour + (n - 1) * Additional hour
Substitute the known values in the above equation, so, we have the following representation
f(n) = 7 + (n - 1) * 2.5
Hence, the function that can be used to find the total amount is f(n) = 7 + (n - 1) * 2.5
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Question 10 > Determine whether the integral is divergent or convergent. If it is convergent, evaluate it. If not, state your answer as "DNE" 4 ( 1 -dz 22 +1 00
To determine the convergence of the integral 4(1-z)/(2^2 +1)² dz from 0 to infinity, we can use the comparison test.
First, note that (1-z) is bounded between 0 and 1, so we can compare it to the integral of 4/(2² +1)² dz from 0 to infinity, which is convergent since it is a constant times the convergent p-series with p=2.
Therefore, by the comparison test, the original integral is also convergent. To evaluate it, we can use partial fractions:
4(1-z)/(2² +1)^2 = A/(2+i)² + B/(2-i)²
Solving for A and B, we get A = (1+i)/5 and B = (1-i)/5.
Then, the integral becomes:
∫ 4(1-z)/(2² +1)² dz = A ∫ 1/(2+i)² dz + B ∫ 1/(2-i)² dz
= (1+i)/5 [-1/(2+i)] + (1-i)/5 [-1/(2-i)] from 0 to infinity
= [(1+i)(2-i) - (1-i)(2+i)]/25(2² +1)
= 0
Therefore, the integral is convergent and evaluates to 0.
To determine if an integral is convergent or divergent, you need to look at its limits and the function you are integrating. Convergent means that the integral has a finite value, while divergent means the integral does not have a finite value.
For example, if you have an integral like this:
∫(f(x) dx) from a to b,
you need to evaluate the limits 'a' and 'b' and the function 'f(x)'. If 'a' or 'b' is infinity (∞) or the function 'f(x)' behaves such that it leads to an infinite value for the integral, it is divergent. Otherwise, it is convergent.
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Ishaan tiene 2 veces la edad de Christopher.
Hace 35 años Ishaan tenía 7 veces la edad de
Christopher.
¿Cuántos años tiene Ishaan actualmente?
Ishaan's current age is 84.
How to solve for the current ageLet Ishaan's current age be I and Christopher's current age be C.
Given, I = 2C ...........(1) (Ishaan is twice the age of Christopher)
35 years ago, I - 35 = 7(C - 35) (Ishaan was 7 times the age of Christopher 35 years ago)
Simplifying the above equation, we get:
I - 35 = 7C - 245
I = 7C - 210 ...........(2)
Substituting equation (1) in equation (2), we get:
2C = 7C - 210
5C = 210
C = 42
Therefore, Christopher's current age is 42.
Substituting C = 42 in equation (1), we get:
I = 2C = 2(42) = 84
Therefore, Ishaan's current age is 84.
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The question is translated to English as
Ishaan is twice the age of Christopher. 35 years ago Ishaan was 7 times the age of Christopher. How old is Ishaan now?
Solve systems of Equation by substitution method
3(x-2) + y = 7
4x - 3(y-1) = 16
The values of the variables are x = 4 and y = 1
How to solve the equationWe have the equations as;
3(x-2) + y = 7
4x - 3(y-1) = 16
Using the substitution method
Make 'y' the subject of formula from equation (1), we have;
y = 7 - 3(x-2)
Now, substitute the expression as y in equation (2), we get;
4x - 3(7 - 3(x-2) - 1) = 16
expand the bracket, we have;
4x - 3(7 - 3x + 6 - 1) = 16
collect the like terms
4x - 3(12 - 3x) = 16
4x - 36 + 9x = 16
collect the like terms
13x = 52
x = 4
Substitute the value
y = 7 - 3(4 -2 )
y = 7 -3(2)
y = 1
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44 friends evenly divided up an
�
nn-slice pizza. One of the friends, Harris, ate
1
11 fewer slice than he received
The expression that denotes the number of slices of pizza eaten by Harris is: (N/4) - 1
How to solve Algebra Word Problems?The parameters are given as:
Slices of pizza = n
Number of friends = 4
Slices of pizza evenly divided among friends = Total number of slices/number of friends = N/4
Now, this value will represent the number of slices each friend got.
Since, Harris had 1 slice lesser than what he received, then we can say that:
Number of slices of pizza eaten by Harris = (N/4) -1
This is because it's evenly divided into 4 people and as such we divide the total (N) by 4.
Since he at one less, you subtract one.
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Complete question is:
4 friends evenly divided up an n-slice pizza. One of the friends, Harris, ate 1 fewer slice than he received. How many slices of pizza did Harris eat? Write your answer as an expression.
Mrs. jones buys two toys for her son. the probability that the first toy is defective is , and the probability that the second toy is defective given that the first toy is defective is . what is the probability that both toys are defective? a. b. c. d.
The probability of the first toy being defective is 1/3 and the probability of both toys being defective is 1/15.
Hence, option 'a'.
Use the concept of probability defined as:
Probability is equal to the percentage of positive outcomes compared to all outcomes for the occurrence of an event.
Given that,
Mrs. Jones buys her son two toys.
The probability that the initial plaything is broken = 1/3.
The probability that the second toy has a problem.,
Also given the original toy is defective, is 1/5.
The goal is to calculate the probability that both toys are defective.
To calculate the probability that both toys are defective:
Multiply the individual probabilities.
Given that the probability of the first toy being defective = 1/3,
The probability of the second toy being defective given that the first toy is defective= 1/5,
Calculate the probability that,
Both toys have flaws, multiplying these probabilities together:
(1/3) x (1/5) = 1/15
Hence,
The probability that both toys are defective is [tex]1/15[/tex] which is option 'a'.
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The complete question is:
Mrs. Jones buys two toys for her son. the probability that the first toy is defective is 1/3, and the probability that the second toy is defective given /that the first toy is defective is 1/5. what is the probability that both toys are defective?
a. 1/15
b. 1/4
c. 1/8
d. 3/5
Procter & Gamble reported that an American family of four washes an average of 1
ton (2000 pounds) of clothes each year. If the standard deviation of the distribution
is 187. 5 pounds, find the probability that the mean of a randomly selected sample of
50 families of four will be between 1980 and 1990 lbs.
The required probability is approximately 0.1253 or 12.53%.
We can use the central limit theorem to approximate the sampling distribution of the mean of the weights of clothes washed by 50 families of four. According to the central limit theorem, the sampling distribution of the mean will be approximately normal if the sample size is large enough (n > 30), regardless of the shape of the population distribution.
The mean of the sampling distribution of the mean will be equal to the population mean, which is 2000 lbs
[tex]SEM=\frac{\sigma}{\sqrt{n} }[/tex]
σ = population standard deviation
n = sample size.
[tex]SEM=\frac{187.5}{\sqrt{50} }[/tex]
= 26.5
Now we need to find the z-scores corresponding to the two values of the mean.
[tex]z_1=\frac{1980-2000}{26.5}[/tex]
= -0.75
[tex]z_2=\frac{1990-2000}{26.5}[/tex]
= -0.38
Using a standard normal table, we can find the probability that a z-score is between -0.75 and -0.38.
P(-0.75 < Z < -0.38) = 0.1253
Therefore, the required probability is approximately 0.1253 or 12.53%.
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Find the total surface area of the following
cone. Leave your answer in terms of a.
4 cm
3 cm
SA = [ ? ]7 cm
Hint: Surface Area of a Cone = tre + B
Where e = slant height, and B = area of the base
The total surface area of the cone is 44π cm², where π represents the mathematical constant pi.
We have,
To find the total surface area of a cone, we need to calculate the lateral surface area (denoted by L) and the base area (denoted by B), and then sum them.
The lateral surface area of a cone is given by L = πrℓ, where r is the radius of the base and ℓ is the slant height.
The base area is given by B = πr², where r is the radius of the base.
Given the dimensions:
Radius of the base (r) = 4 cm
Slant height (ℓ) = 7 cm
We can calculate the lateral surface area as L = π(4)(7) = 28π cm².
The base area can be calculated as B = π(4^2) = 16π cm².
Now, to find the total surface area (SA), we sum the lateral surface area and the base area:
SA = L + B = 28π + 16π = 44π cm².
Therefore,
The total surface area of the cone is 44π cm², where π represents the mathematical constant pi.
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I need help on this part, I don't even get it, please help me on this part.
Here what it said:
"A store offers 3 brands of tee-shirts in 6 colors each in either long sleeve or short. How many different shirts are there?"
Answer:
36!
Step-by-step explanation:
There is 3 brands of clothing each brand has short and long sleeve, and both come in 6 different colors.
multiply 6*2 (because 6 different colors per long and short sleeve) get 12, then you multiply 12 times 3 because each one is from a different brand.
IT MAY BE A BI CONFUSING I SUCK AT EXPLAINING BUT
YEAHHH!
Answer:
18shirts
Step-by-step explanation:
3×6=18 shirts
A researcher is studying life expectancy in different parts of the world using birth and death records she randomly selects a sample of 20 people from town a and a samle of 20 people form town b and records their lifespans in years.
mean lifespan in years standard deviation
town a 78.5 11.2
town b 74.4 12.3
the researhers wants to test the claim that there is a significant differnce in lifepan for people in the two towns. what are the null and alternative hypotheses that should be used to test this claim?
a. null: mu1 - mu2 is not equal to 0; alternative: mu1 - mu2 > 0 <---- a
b. null: mu1 - mu2 = 0; alternative: p1 - p2 is not equal to 0 <---- b
c. null: mu1 - mu2 = 0; alternative: mu1 - mu2 is not equal to 0 <---- c
d. null: p1 - p2 = 0; alternative: p1 - p2 < 0 <---- d
The correct answer is: c. null: mu1 - mu2 = 0; alternative: mu1 - mu2 is not equal to 0
The null hypothesis states that there is no significant difference in the mean lifespan of people in the two towns, while the alternative hypothesis states that there is a significant difference in the mean lifespan of people in the two towns.
Since we are comparing the means of two populations, we use the difference between the means as the test statistic. Therefore, the null hypothesis is mu1 - mu2 = 0 (there is no difference between the means) and the alternative hypothesis is mu1 - mu2 is not equal to 0 (there is a difference between the means).
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