The weighted mean number of sheets on a roll of toilet paper, rounded to two decimal places, is approximately 59.62.
To find the weighted mean of the number of sheets on a roll of toilet paper, we need to calculate the average, taking into account the different weights or proportions of each group.
Let's denote the number of sheets on a roll for each group as follows:
Group A: 15 brands with 58 sheets
Group B: 4 brands with 31 sheets
Group C: 16 brands with 97 sheets
Group D: 15 brands with 29 sheets
First, we calculate the total number of brands:
Total brands = 15 + 4 + 16 + 15 = 50
Next, we calculate the weighted sum of the sheets by multiplying the number of brands in each group by the respective number of sheets:
Weighted sum = (15 * 58) + (4 * 31) + (16 * 97) + (15 * 29) = 870 + 124 + 1552 + 435 = 2981
Finally, we calculate the weighted mean by dividing the weighted sum by the total number of brands:
Weighted mean = Weighted sum / Total brands = 2981 / 50 ≈ 59.62
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18/38 as a percentage
Answer47.3%
Step-by-step explanation:
Answer:
47.3684211%
Step-by-step explanation:
caulculater
help me with this plz no links plz
Answer:
Artaud is 41 years old.
Step-by-step explanation:
Opposite age + 44 = 30
Opposite age = 30 - 44
Opposite age = -14
Artauds Age = 14 answer
therefore, Artauds is 14 years.
hope that helps...
An airline claims that it rarely loses a passenger's checked luggage, and, if checked luggage is lost, 90% of the luggage is recovered and returned to the owner within 24 hours. A consumer group believes the 24-hour recovery rate of lost luggage is actually lower (worse) than the airline's claim. They surveyed a large random sample of the airline's customers and found that 103 of 122 people who had lost luggage were reunited with the missing items within 24 hours. Is this enough evidence to claim the proportion of people who lost luggage with this airline a
The number that corresponds to the null hypothesis and the alternative hypothesis will be 3 and 6 respectively.
What is a null hypothesis?Specify the correct number from the list below that corresponds to the appropriate null and alternative hypotheses for this problem.
It should be noted that the null hypothesis suggests that there's no statistical relationship between the variables.
The alternative hypothesis is different from the null hypothesis as it's the statement that the researcher is testing.
In this case, the number that corresponds to the null hypothesis and the alternative hypothesis will be 3 and 6 respectively.
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g(c)=19−c^2
What is g(4)?
Enter your answer in the box.
Answer:
g(4)=3
Step-by-step explanation:
Answer:
g = 19
Step-by-step explanation:
HELP PLS DONT ANSWER JUST FOR POINTS TY
Answer:
The answer to this question is '2³ × 3²'.Step-by-step explanation:
2³ × 3⁶/3⁴Further simplification:
=> 2³ × 3²Further simplification
=> 8 x 9Multiplication:
=> 72Hence, the answer to this question is '2³ × 3²'. If you want the further simplified answer, it is 72.
Hoped this helped.
\(BrainiacUser1357\)
Salma used 4 1/8 gallons of gas on Sunday and 5 1/4 gallons of gas on Monday. How many more gallons of gas did she use on Monday? Write your answer as a mixed number in simplest form.
Salma used 1 1/8 more gallons of gas on Monday than on Sunday.
What are mathematical operations?The term "operation" in mathematics refers to the process of computing a value utilizing operands and a math operator. For the specified operands or integers, the math operator's symbol has predetermined rules that must be followed. In mathematics, there are five basic operations: addition, subtraction, multiplication, division, and modular forms.
Given, the 4 1/8 gallons of gas used by Salma on Sunday.
To find out how many more gallons of gas Salma used on Monday than on Sunday, we need to subtract the amount of gas she used on Sunday from the amount she used on Monday:
5 1/4 - 4 1/8
To subtract these mixed numbers, we need to find a common denominator.
In this case, we can use 8:
5 2/8 - 4 1/8 = 1 1/8
Therefore, Salma used 1 1/8 more gallons of gas on Monday than on Sunday.
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Help please I dunno what to do
Answer:
(2y+14.6m+3.8)-(34.8m+15.6+2y)
-20.2m-11.8
was math discovered or created
Answer:
Created. Matt was invented by Archimedes who is called the father of mathematics. He was a Greek mathematician, physicist, engineer, etc.
During this same time, the digital print manager tracked the number of visits to the website’s homepage. he found that before launching the new marketing plan, there were 4,800 visits. over the course of the next 5 weeks, the number of site visits increased by a factor of 1.5 each week. write an equation to model the relationship between the number of weeks, x, and the number of site visits, f(x).
An equation to model the relationship between the number of weeks, x, and the number of site visits, f(x) is 4800 = a(1.5)^x.
He found that before launching the new marketing plan, there were 4,800 visits.
Over the course of the next 5 weeks, the number of site visits increased by a factor of 1.5 each week.
Over the course of the next 5 weeks, initial visitor at x = 0, 4800
Increasing factor = 1.5
Equation of the model is given as:
f(x) = a(b)^x
From the question b = 1.5
Now the equation of model is:
f(x) = a(1.5)^x
At x = 0, f(x) = 4800
Now the equation of the model is:
4800 = a(1.5)^x
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help me please, its mathwatch
Answer:
60 cm^2Solution,
Let ,
a = 13
b = 13
c= 10
then,
s = a + b + c /2
= 13 + 13 + 10 / 2
= 36/2
= 18
Now,
Area of triangle:
\( \sqrt{s(s - a)(s - b)(s - c)} \)
\( \sqrt{18(18 - 13)(18 - 13)(18 - 10)} \)
\( \sqrt{18 \times 5 \times 5 \times 8} \)
\( \sqrt{3600} \)
\(60 \: {cm}^{2} \)
Hope this helps ....
Good luck on your assignment...
Who prepares the questions for grade 7 math worksheets?
The questions for grade 7 math worksheets are typically prepared by math teachers, curriculum specialists, and educational publishers.
These professionals use their knowledge of math concepts and pedagogy to create questions that are appropriate for the grade level and aligned with educational standards.
Additionally, they may use feedback from students and other teachers to refine the questions and ensure they are effective for teaching and learning. It is important for the questions to be clear, accurate, and challenging in order to help students develop their math skills and prepare for more advanced concepts.
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Please help asap!!!!!!!!
The y-coordinate for the solution to the system of equations is -3.
What is a system of equations?
A finite set of equations for which common solutions are sought is referred to in mathematics as a set of simultaneous equations, often known as a system of equations. The intersection of two lines represents the system of equations' solution.
Given system of equations are,
6x + 11y = -3
4x + y = 17
To solve these equations, we must first remove x or y terms.
To do this we must make the removing term's coefficients the same.
In this case, let's remove y.
We are multiplying the second equation by 11. Then,
6x + 11y = -3
44x + 11y = 187
Now we will subtract the second equation from the first.
- 38x = -190
x = 5
Now to find y, substitute x in any one of the equations.
6 * 5 + 11y = -3
11y = -33
y = -3
Hence the y-coordinate for the solution to the system of equations is -3.
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Read the numbers and decide what the next number should be. 1 1.25 7 7.50 2 2.25 8
Order the time periods from oldest to youngest.
Answer:
Silurian, Triassic, Jurassic, Tertiary
Step-by-step explanation:
Convert 6.64 so that is is 10\(^8\)
So you'll have 0.664 × 10\(^8\)
Then you can just order them from largest to smallest :)
If it doesn't make sense you can also convert the index notation (the powers with 10) into whole numbers so
2.08 × 10\(^8\) = 2.08 × 100000000 = 208000000
and so on..
Simplify this expression.
–6w + (–8.3) + 1.5+ (–7w)
The simplified form of the expression -6w + (–8.3) + 1.5+ (–7w) is -13w - 6.8.
What is the simplified form of the expression?Given the expression in the question;
-6w + (–8.3) + 1.5+ (–7w)
To simplify, first remove the parenthesis
Note that;
- × + = -- × - = ++ × + = +-6w + × - 8.3 + 1.5 + × - 7w
-6w - 8.3 + 1.5 - 7w
Next collect and add like terms
-6w - 7w - 8.3 + 1.5
Add -6w and -7w
-13w - 8.3 + 1.5
Add -8.3 and 1.5
-13w - 6.8
Therefore, -13w - 6.8 is the simplified form.
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two cards are drawn, with replacement, from a standard deck. what is the expected value of the minimum of the two cards? (let aces count as 1, jacks as 11, queens as 12, and kings as 13)
The expected value of the minimum of two cards drawn with replacement from a standard deck is 6.96.
We can approach this problem by finding the probability distribution of the minimum card value. Let X be the value of the first card and Y be the value of the second card. Then the minimum card value, Z, is given by Z = min(X,Y).
To find the probability distribution of Z, we can use the fact that P(Z > z) = P(X > z)P(Y > z), where z is any card value. Since each card has an equal probability of being drawn, we have P(X > z) = P(Y > z) = (14-z)/13, for z = 1,2,...,13 (note that we include 14 because aces count as 1).
Therefore, the probability distribution of Z is given by:
P(Z = 1) = (1/13)^2
P(Z = 2) = 2(2/13)(11/13)
P(Z = 3) = 2(3/13)(10/13)
P(Z = 4) = 2(4/13)(9/13)
P(Z = 5) = 2(5/13)(8/13)
P(Z = 6) = 2(6/13)(7/13)
P(Z = 7) = 2(7/13)(6/13)
P(Z = 8) = 2(8/13)(5/13)
P(Z = 9) = 2(9/13)(4/13)
P(Z = 10) = 2(10/13)(3/13)
P(Z = 11) = 2(11/13)(2/13)
P(Z = 12) = 2(12/13)(1/13)
P(Z = 13) = (13/13)^2
The expected value of Z is then given by:
\(E(Z) = 1(1/169) + 2(44/169) + 3(60/169) + 4(72/169) + 5(80/169) + 6(84/169) + 7(84/169) + 8(80/169) + 9(72/169) + 10(60/169) + 11(44/169) + 12(24/169) + 13(1/169)\)
E(Z) = 6.96
Therefore, the expected value of the minimum card value is 6.96.
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Help me someone please my teacher needs this soon or I’m going to fail school
Answer:
A. 9π/3 · 2Step-by-step explanation:
Use the equation of circumference and substitute the value of radius:
C = 2πrC = 2π*3 = 6π inchesCompare the answer choices to find the correct one, which is:
9π/3 · 2 = 3π · 2 = 6π\(\\ \sf\longmapsto Circumference=2\pi r\)
\(\\ \sf\longmapsto Circumference=2(3)(π)=6\pi\)
Now
Check 1st option
\(\\ \sf\longmapsto \dfrac{9\pi}{3}.2=6\pi\)
you cannot directly assign an enumerator to an int variable.
a. true b. false
Answer:
Step-by-step explanation:
True.
An enumerator is a special data type in some programming languages that allows us to give names to integer values, making the code more readable and easier to maintain.
However, an enumerator cannot be directly assigned to an int variable because they are not compatible data types. An int variable can only store integer values, while an enumerator is a named constant that represents an integer value.
To assign an enumerator to an int variable, we need to explicitly cast the enumerator to an int using type conversion.
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limx→0 (ex - cosx - 2x)/(x2 - 2x) is
A -1/2
B 0
C 1/2
D 1
E nonexistent
The second term goes to positive infinity. Therefore, the limit does not exist, and the answer is (E) nonexistent.
To find the limit, we can try to simplify the expression by using some algebraic manipulations and some known limits. First, we can factor out an \($x$\) in the denominator to get:
\($$\lim _{x \rightarrow 0} \frac{e^x-\cos x-2}{x(x-2)}$$\)
Next, we can use the Maclaurin series expansions for \($\$ \mathrm{e}^{\wedge} x \$$\) and \($\$ \mid \cos \mathrm{x} \$$\) to write:
\($$e^x=1+x+\frac{x^2}{2}+O\left(x^3\right)$$and$$\cos x=1-\frac{x^2}{2}+O\left(x^4\right)$$\)
Substituting these expansions into the numerator, we get:
\($\begin{aligned}& e^x-\cos x-2=\left(1+x+\frac{x^2}{2}+O\left(x^3\right)\right)-\left(1-\frac{x^2}{2}+O\left(x^4\right)\right)-2=x+\frac{3}{2} x^2+ \\& O\left(x^3\right)\end{aligned}$\)
Substituting this back into the original expression and simplifying, we get:
\($$\lim _{x \rightarrow 0} \frac{x+\frac{3}{2} x^2+O\left(x^3\right)}{x(x-2)}=\lim _{x \rightarrow 0} \frac{1}{x-2}+\frac{3}{2 x}+O(1)$$\)
As\($\$ \times \$$\) approaches 0 , the first term goes to negative infinity while the second term goes to positive infinity. Therefore, the limit does not exist, and the answer is (E) nonexistent.
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The number of customers in a grocery store is modeled by the function y -X? + 10x + 50, where y is
the number of customers in the store and x is the number of hours after 7:00 A.M.
a. At what time is the maximum number of customers in the store?
- How many customers are in the store at the time in part (a)?
Using the vertex of the quadratic function, it is found that:
a) The maximum number of customers in the store is at 12 P.M.
b) 75 customers are in the store at this time.
The number of customers in x hours after 7 AM is given by:
\(y = -x^2 + 10x + 50\)
Which is a quadratic equation with coefficients \(a = -1, b = 10, c = 50\)
Item a:
The maximum value, considering that a < 0, happens at:
\(x_v = -\frac{b}{2a}\)
Hence:
\(x_v = -\frac{10}{2(-1)} = 5\)
5 hours after 7 A.M, hence, the maximum number of customers in the store is at 12 P.M.
Item b:
The value is y(5), hence:
\(y(5) = -(5)^2 + 10(5) + 50 = 75\)
75 customers are in the store at this time.
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2) Find the slope of the line
10x8x38x12/10 PLSEASEE HELP WILL MARK BRAINLIEST
Answer:
3648
Step-by-step explanatio
Answer:
Answer: 3,648
Step-by-step explanation:
3,648
Sean drank a slushy as fast as he could.The amount of slushy left in the cup in millimeters as a function of time in seconds is graphed.how many slushy was initially in the cup.
600 mm
1) Examining the graph we can notice that the drinking described is decreasing.
2) And the initial amount of slushy was 600 mm since it is the amount when t=0
3) Hence, the answer is 600 mm
Find an equation of a line with a slope of 6 and having the point (3,5) on the line. Will mark brainliest!
Please help me with this, it'll clear up this test I'm about to take today.
When you're graphing a function, and its inverse, there is a table where you list the x and y factors. I know how you're supposed to solve for the y coordinate, by plugging in the x factor into the function and solving it for y. However, how do you know what your x factors are going to be?
Step-by-step explanation:
We want to identify how to determine the x-factors for the graph of a function.
On some occasions, the x values for the function will be provided for you to solve for the y values. but on other occasions, the x values are not provided and you have to decide them yourself.
For a linear function, most times, you can pick values within any range of values, e.g from 0 to 5, or 2, 4, 6, 8, 10. Since it is a linear function, it will eventually result in a straight line that contains all other points.
For a quadratic function, the best practice is to pick points around the vertex of the function. The vertex of a function is either the minimum or maximum point of the function.
For example, if the vertex of a quadratic function is (4, 10), the x-coordinate of the vertex is 4. To pick your points, pick points that are some values below 4 and some values above 4, like 2, 3, 4, 5, 6 or 0, 2, 4, 6, 8 That way, you get points that are on either side of the vertex and that will make your plot easier.
Hope that helps!
can someone help me with this tooo !
What are the domain and range of the function
Answer:
Domain is all the possible X values on a graph
Range are all the possible Y values on a graph
Step-by-step explanation:
Example- If given a graph where on the X line goes from 0-10 and Y goes from 0-30 the domain would be all real numbers 0-10 and range would be all real numbers 0-21
17.3· 15·23
No links
Answer:
59689
Step-by-step explanation:
15 times 23= 345
345 times 17.3 = 59689
Question
Which table represents a proportional relationship between x and y?
Responses
x 3 9 10 15
y 1 3 4 5
x 3 9 10 15 y 1 3 4 5
x 1 5 8 10
y 15 75 120 150
x 1 5 8 10 y 15 75 120 150
x 4 6 8 10
y 6 8 10 12
x 4 6 8 10 y 6 8 10 12
I don't know.
The table that represents a proportional relationship between x and y is table 2.
What is a proportional relationship?A relationship is proportional if each pair of data values are related in the same way, by multiplying by a factor.
A proportional relationship is one in which two quantities vary directly with each other.
For example,
y = kx
where,
k = constant of proportionality
You can tell if a table shows a proportional relationship by calculating the ratio of each pair of values.
If those ratios are all the same, the table shows a proportional relationship.
Therefore, let's calculate the ratios of the table
1 / 155 / 75 = 1 / 158 / 120 = 1 / 1510 / 150 = 1 / 15Hence, the table 2 has a proportional relationship.
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answer this question plz