Answer:
any number less than and not equal to 1/2
Step-by-step explanation:
What is the standard deviation and its meaning given this population of customer ages? 45, 76, 30, 22, 51, 40, 63, 66, 41
The standard deviation is 16.54 if the population of customers ages is 45, 76, 30, 22, 51, 40, 63, 66, and 41.
What is the standard deviation?It is defined as the measure of data disbursement, It gives an idea about how much is the data spread out.
\(\rm SD = \sqrt{\dfrac{ \sum (x_i-X)^2}{N}\)
SD is the standard deviation
xi is each value from the data set
X is the mean of the data set
N is the number of observations in the data set.
It is given that:
The data set:
45, 76, 30, 22, 51, 40, 63, 66, 41
From the formula:
∑(x(i) - X)² = 2463.55
N = 9
SD = √(2463.55/9)
SD = 16.54
Thus, the standard deviation is 16.54 if the population of customers ages is 45, 76, 30, 22, 51, 40, 63, 66, and 41.
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Name the Property of Operations shown below.
7 x 1 = 7
Answer:
multipacation
Step-by-step explanation:
-6(x + 2) + (-3x + 17)
Answer:
-9x+5
Step-by-step explanation:
-6*x = -6x
-6*2 = -12
-6x-12+-3x+17
-6x+-3x = -9x
-12+17 = 5
-9x+5
Answer:
-9x+5
Step-by-step explanation:
Distribute:
-6x-12-3x+17
Combine like terms:
-9x+5
Final answer:
-9x+5
Hope this helps plz hit the crown :D
There are 594 cal in 6 ounces of a certain ice cream how many calories are there in 2 pounds
Answer:
There are 1,883 calories in 2 pounds
Consider the plate dealt with in Example 8.1. Plot has a function of the angle of inclination of the plate as the hot side is tilted both upward and downward over the range +90°. Note that you must make do with discontinuous formulæ in different ranges of 0.
The question refers to the plot of the plate's function of the angle of inclination. When the hot side is tilted both upward and downward over the range of +90°, the discontinuous formulas must be used in different ranges of 0.
It refers to the plot of the function of the angle of inclination of a plate. It is a graph that shows the relationship between the angle of inclination and the plate's function. A plate is tilted on its hot side both upward and downward over a range of +90°. The graph shows that different discontinuous formulas are needed for different ranges of 0. A discontinuous formula refers to a formula that consists of two or more parts, each with a different equation. The two or more parts of a discontinuous formula have different ranges, such that each range requires a different equation. These formulas are used in cases where the same equation cannot be applied throughout the entire range.
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Rewrite 4/6 and 1/3 as a unite rate
Answer: B
Step-by-step explanation: Hope this helps :)
PLEASE HELP THANKS :)
Q2.) Twice a number plus four times another is 42. The sum of the numbers is 18. What is the larger number?
3
10
15
8
Please someone help me with this
Answer:
B
Step-by-step explanation:
It b because in the first columb it has the ordered pair (0,-2) the -2 is your y intercept and be has -2 in the equation.
Answer:
B
Step-by-step explanation:
Han says that you can wrap a 5-foot rope around a wheel with a 2-foot diameter because is less than pi. Do you agree with Han? Copied for free from openupresources.Org
Given :
Han says that we can wrap a 5 foot rope around a wheel with a 2 foot rope.
To Find :
It this true or false.
Solution :
Radius of wheel, r = 1 foot.
Circumference of wheel is given by :
\(C = 2\pi r\\\\C = 2\times 3.14\times 1\\\\C = 6.28 \ foot\)
Since, circumference is greater than 5 foot, therefore, we cannot wrap a 5-foot rope around a wheel with a 2-foot diameter.
Hence, this is the required solution.
agree Step-by-step explanation:
Hello, In the Maths NCERT book, I have a doubt in Ch.1 Exercise 1.1, question 1.
(For those who don't have the book or having a different version of the book, -2/5 * 3/5 + 5/2 - 3/5 * 1/6)
I know how to solve the question, the solution is: -2/3 * 3/5 + 5/2 - 3/5 * 1/6
= 3/5(-2/3 -1/6) + 5/2 (By commutativity)
= 3/5 * -5/6 + 5/2
= -1/2 + 5/2
= 2
The doubt is I don't understand why the second line of the solution is under commutativity. Any answers would be helpful. Thank you.
The second line of the solution in the given exercise is using the commutative property of multiplication to change the order of the factors for simplification.
In the given solution, the step where it says "By commutativity" is referring to the commutative property of multiplication. The commutative property states that the order of multiplication can be changed without affecting the result.
In this case, the expression is rearranged by changing the order of the factors. Instead of multiplying 3/5 and -2/3, it multiplies -2/3 and 3/5. This rearrangement is allowed because multiplication is commutative.
So, in the second line of the solution, the order of multiplication is changed using the commutative property to facilitate the simplification of the expression.
I hope this clarifies the use of the term "commutativity" in the solution. If you have any further questions, feel free to ask!
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Ok so I need help thank you
Answer:
2.56
Step-by-step explanation:
I'm pretty sure, I'm sorry if its wrong
e. Find the slope of the line that passes through the points (1, 3) and (9,7),
Answer:
0.5
Step-by-step explanation:
→ Find the difference in y
7 - 3 = 4
→ Find the difference in x
9 - 1 = 8
→ Divide the results
4 ÷ 8 = 0.5
Answer:
The slope is 1/2 (m=1/2)
Step-by-step explanation:
Use the slope formula: \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\) to solve for the slope. y2 is 7, y1 is 3, x2 is 1, x1 is 9. \(\frac{7-3}{9-1}=\frac{4}{8} = \frac{1}{2}\)
what is the slope of the line that passes through the points (6,8) and (8,-9)?
\( \frac{ - 9 - 8}{8 - 6} = \frac{ - 17}{2} = - 8.5 \)
3 positive integers have a mean of 5 and range of 10, what are the integers
The three positive integer that has mean of 5 and range of 10 will be 0, 5, 10.
What is Algebra?The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
Let the three positive number be (a – d), (a), and (a + d).
Then the mean of the number will be 5. Then we have
5 = (a – d + a + a + d) / 3
5 = (3a) / 3
a = 5
Then the range will be 10. Then we have
(a + d) – (a – d) = 10
a + d – a + d = 10
2d = 10
d = 5
Then the three positive integer that has mean of 5 and range of 10 will be 0, 5, 10.
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I need the answer now
Answer:
i) TRUE
ii) TRUE
iii) TRUE
Step-by-step explanation:
\((ab+bc)(ab-bc)+(bc+ca)(bc-ca)+(ca+ab)(ca-ab)=\\\\=\underline{(ab)^2}-(bc)^2\ \,+\ \,(bc)^2-(ca)^2\ \,+\ \,(ca)^2-\,\underline{(ab)^2}=\\\\=0+0+0=0\)
\((a+b+c)(a^2+b^2+c^2-ab-bc-ca)=\\\\=a^3\,\underline{\,+ab^2}\ \underline{\underline{+\,ac^2}}\,-a^2b\ -\,abc\ \underline{\underline{\underline{-\,a^2c}}}+a^2b+b^3+bc^2\,\underline{-\,ab^2}\ \underline{\underline{\underline{ \underline{-\,b^2c}}}}\,-\,abc+\\{}\qquad\qquad\qquad\qquad\qquad\qquad \qquad\qquad \underline{\underline{ \underline{+\,a^2c}}}\ \underline{\underline{\underline{\underline{+\,b^2c}}}}+c^3\,-\,abc-bc^2\ \underline{\underline{-c^2a}}=\)
\(=a^3\ \underline{-\,a^2b}\ \underline{\underline{-\,abc}}\ \underline{+\,a^2b}+b^3\ \underline{\underline{\underline{+\,bc^2}}}\ \underline{\underline{-\,abc}}+c^3\ \underline{\underline{-\,abc}}\ \underline{\underline{\underline{-\,bc^2}}}=\\\\=a^3+b^3+c^3-3abc\)
\((p-q)(p^2+pq+q^2)=\\\\=p^3\ \underline{+\,p^2q}\ \underline{\underline{+\,pq^2}}\ \underline{-\,p^2q}\ \underline{\underline{-\,pq^2}}-q^3=\\\\=p^3-q^3\)
Answer: see proofs below
Step-by-step explanation:
7i) (ab + bc)(ab - bc) = a²b² - ab²c + ab²c - b²c² → a²b² - b²c²
+ (bc + ca)(bc - ca) = b²c² - abc² +abc² - a²c² → b²c² - a²c²
+ (ca + ab)(ca - ab) = a²c² - a²bc + a²bc - a²b² → a²c² - a²b²
= a²b² + 0 + 0 - a²b²
= 0
7ii) a(a² + b² + c² - ab - bc - ca) = a³ + ab² + ac² - a²b - abc - a²c
+ b(a² + b² + c² - ab - bc - ca) = b³ - ab² + bc² + a²b - abc - b²c
+ c(a² + b² + c² - ab - bc - ca) = c³ - ac² - bc² - abc + a²c + b²c
= a³ + b³ + c³ + 0 + 0 + 0 + 0 - 3abc + 0 + 0
= a³ + b³ + c³ - 3abc
7iii) p(p² + pq + q²) = p³ + p²q + pq²
-q(p² + pq + q²) = - p²q - pq² - q³
= p³ + 0 + 0 - q³
= p³ - q³
please simplify
4(57ab)⁰
no links, answer quickly,please
Answer:
4
Step-by-step explanation:
Using the rule of exponents
\(a^{0}\) = 1
Then
4\((57ab)^{0}\) = 1 and
4\((57ab)^{0}\) = 4 × 1 = 4
Answer:
4
Step-by-step explanation:
since 57ab has power 0 it is equal to 1
1×4 is 4
How do you know if a curve is positive or negative?
Positive curve graphs will be upward-sloping.
Negative curve graphs will be downward-sloping.
Both graphs in the first image attached below, show curves sloping upward from left to right. As with upward-sloping straight lines, we can say that generally the slope of the curve is positive. While the slope will differ at each point on the curve, it will always be positive.
In the graphs in the second image attached, both of the curves are downward sloping. Straight lines that are downward sloping have negative slopes; curves that are downward sloping also have negative slopes. The slopes change from point to point on a curve, but all of the slopes along these two curves will be negative.
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Straight lines that are downward sloping have negative slopes; curves that are downward sloping also have negative slopes. The slopes change from point to point on a curve, but all of the slopes along these two curves will be negative.
Let p be a prime. A positive integer α is called a primitive root of p if ever integer a with 1≤a≤p−1 can be expressed as a=α
i
modp for a unique i with 0≤i≤p−2. It is known that every prime has at least one primitive root. The exponent i is referred to as the discrete logarithm, or index, of a for the base α, and is denoted log
α
(a) or index (a). The discrete logarithm problem is to compute the unique exponent i (i.e., log
α
(a) ), given p,α and a. If p is large (say, p has 130 digits), people believe that it is computationally very hard to solve the discrete logarithm problem. Prove that 2 is a primitive root of 11 . Find out log
2
(9). (10 marks) Show that it is easy to compute a, given p,α and i. To this end, you need to describe an efficient algorithm for computing a.
The given p, α, and i using the exponentiation by squaring algorithm.
To prove that 2 is a primitive root of 11, to show that every integer a with 1 ≤ a ≤ 10 can be expressed as a ≡ 2²i (mod 11) for a unique i with 0 ≤ i ≤ 9.
verify this by checking the powers of 2 modulo 11:
2² ≡ 1 (mod 11)
2²≡ 2 (mod 11)
2² ≡ 4 (mod 11)
2³ ≡ 8 (mod 11)
2² ≡ 5 (mod 11)
2³ ≡ 10 (mod 11)
2³ ≡ 9 (mod 11)
2³ ≡ 7 (mod 11)
2² ≡ 3 (mod 11)
2³ ≡ 6 (mod 11)
The remainders obtained from the powers of 2 cover all the integers from 1 to 10 modulo 11. Additionally, each remainder is unique, express any integer between 1 and 10 as a power of 2 modulo 11.
To find log₂(9), to determine the exponent i such that 9 (mod 11). From the list of powers of 2 above, that 2³= 9 (mod 11). Therefore, log₂(9) = 6.
A given p, α, and i, where α is a primitive root of p and i is the discrete logarithm or index use the algorithm of exponentiation by squaring.
The algorithm for computing a given p, α, and i is as follows:
Set result = 1.
Initialize a binary representation of i, e.g., i = b[m]b[m-1]...b[1]b[0].
For j from m to 0:
a. Square the current result: result = result × result (mod p).
b. If bj = 1, multiply the current result by α: result = result × α (mod p).
Return the final result.
This algorithm takes advantage of the binary representation of i to compute a efficiently. By squaring the current result and multiplying by α only when necessary, compute a in logarithmic time complexity with respect to i.
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if you conclude that a soda filling machine is not filling bottles completely based on the results of a sample when
If you conclude that a soda filling machine is not filling bottles completely based on the results of a sample, it means that the sample of bottles you tested showed evidence of incomplete filling.
However, it is important to note that this conclusion is based on a sample and may not represent the behavior of the entire population of filled bottles.
To make a more reliable conclusion about the filling machine's performance, you would need to conduct a statistical analysis to determine the significance of the observed incomplete filling. This analysis could involve hypothesis testing or confidence interval estimation.
Hypothesis testing allows you to assess whether the observed incomplete filling is statistically significant or could have occurred by chance. You would formulate a null hypothesis, such as "the filling machine fills bottles completely," and an alternative hypothesis, such as "the filling machine does not fill bottles completely." By comparing the sample data to the expected behavior under the null hypothesis, you can determine if there is sufficient evidence to reject the null hypothesis in favor of the alternative hypothesis.
The statistical analysis would involve calculating a test statistic, such as a t-test or a z-test, and determining the associated p-value. The p-value represents the probability of observing the sample data or more extreme data if the null hypothesis is true. If the p-value is below a predetermined significance level (e.g., 0.05), you would reject the null hypothesis and conclude that the filling machine is not filling bottles completely.
Additionally, you could also estimate a confidence interval for the proportion of bottles that are filled completely. This would provide a range of values within which the true proportion of completely filled bottles is likely to fall. If the lower limit of the confidence interval is below a desired threshold (e.g., 100%), it would provide further evidence that the filling machine is not consistently filling bottles completely.
It is crucial to note that drawing conclusions based on a sample has inherent limitations. The sample may not accurately represent the entire population of filled bottles, and there is always a margin of error associated with any statistical analysis. Therefore, it is recommended to conduct a larger-scale study or perform ongoing monitoring to obtain more reliable and comprehensive evidence about the filling machine's performance.
In summary, if you conclude that a soda filling machine is not filling bottles completely based on the results of a sample, it is an indication of potential issues with the machine. However, to make a more robust conclusion, you would need to conduct a statistical analysis, such as hypothesis testing or confidence interval estimation, to determine the significance of the observed incomplete filling. This analysis helps account for sampling variability and provides a more reliable assessment of the machine's performance.
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The following dotplot shows the centuries during which the 111111 castles whose ruins remain in Somerset, England were constructed. Each dot represents a different castle. According to the 1.5.IQR rule for outliers, how many high outliers are there in the data set?
The conclusion which we get after analyzing the data given is that there aren't outliers in the displayed data set.
We will calculate the interquartile range and us the rule 1.5 .
The formula to calculate interquartile range is to subtract the value of first quartile by the value of second quartile.
IQR = Q3 - Q1
Therefore, interquartile range becomes,
IQR = 17 - 13
IQR = 4
Now , we will apply rule 1.5 and for that we will multiply 4 by 1.5 first
4 * 1.5 = 6
and then,
17 + 6 = 23
on applying the rue we will get ,
13 - 6 = 7 .
This value means that there is no outlier in the displayed data set.
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Convert 73.355
∘
N from DD to DMS. Round to the nearest whole second. Question 8 (1 point) Convert 101.476
∘
E from DD to DMS. Round to the nearest whole second. A 0
The coordinates 73.355°N and 101.476°E can be converted from decimal degrees (DD) to degrees, minutes, and seconds (DMS) format. The rounded values in DMS are 73°21'18" N and 101°28'34" E.
To convert 73.355°N from DD to DMS, we start by extracting the whole number of degrees, which is 73°. Next, we need to convert the decimal part into minutes and seconds. Multiply the decimal by 60 to get the number of minutes. In this case, 0.355 * 60 = 21.3 minutes. Rounding to the nearest whole number, we have 21 minutes. Finally, to convert the remaining decimal part into seconds, we multiply by 60. 0.3 * 60 = 18 seconds. Rounding to the nearest whole second, we get 18 seconds. Combining all the values, we have 73°21'18" N.
For the coordinates 101.476°E, we follow the same steps. The whole number of degrees is 101°. Multiplying the decimal part, 0.476, by 60 gives us 28.56 minutes. Rounding to the nearest whole number, we have 29 minutes. The remaining decimal part, 0.56, multiplied by 60 gives us 33.6 seconds. Rounding to the whole second, we get 34 seconds. Combining all the values, we have 101°28'34" E.
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we have a study involving 3 different groups that each contain 9 participants (27 total). what two degrees of freedom would we report when we report the results of our study?
Using degree of freedom,
Two degrees of freedom would we report when we report the results of our study is (2,24).
Degree of freedom:
The statistical degrees of freedom (DF) indicate the number of independent values that can be changed in the analysis without violating the constraints.
degrees of freedom is the number of independent values that can be estimated in a statistical analysis. It can also be thought of as the number of values that are free to vary when estimating the parameters
DF = N – P
Where:
N = sample size
P = the number of relationships
We given that,
Number of groups , k = 3
Number of total participants, n = 27
Degrees of freedom for F-test is F(k-1,n-k)
= F(3-1 , 27-3)
= F(2,24)
Hence, (2,24,) are required two degrees of freedom.
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In a class of 25 students , 12 have taken in mathematics , 8 have taken mathematics but not biology . Find
i. the number of student who have taken mathematics and biology
ii. find those who have taken biology but not mathematics . Solve by making venn diagram
Answer:
I.4
ii.13
Step-by-step explanation:
....ur welcome........
Part 1: Use the first 4 rules of inference to provide
logical proofs with line-by-line justifications for the following
arguments.
(2) 1. A > (E > ~F)
2. H v (~F > M)
3. A
4. ~H /E > M
To provide Logical Proofs with line-by-line justifications for the following arguments,
Let's use the first 4 rules of inference.
Given below is the justification for each step of the proof with the applicable rule of Inference.
E > M1. A > (E > ~F) Premise2. H v (~F > M) Premise3. A Premise4. ~H Premise5. A > E > ~F 1, Hypothetical syllogism6.
E > ~F 5,3 Modus Ponens 7 .
~F > M 2,3 Disjunctive Syllogism 8.
E > M 6,7 Hypothetical SyllogismIf
A is true, then E must be true because A > E > ~F.
Also, if ~H is true, then ~F must be true because H v (~F > M). And if ~F is true,
Then M must be true because ~F > M. Therefore, E > M is a valid based on the given premises using the first four rules of inference.
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If the linear function is f(x) = 3x + 10, then the value of 3 could represent:
O The initial investment.
O The starting point.
O None of these choices are correct.
O The average change.
O The line of reflection.
Answer:
3 is the gradient ryt?
Step-by-step explanation:
so Ummm C?
The volume of the following figure is
240 in² which of the following is the missing side length?
A. 7 in
B. 6 in
C. 8 in
D. 5 in
Answer:
B cause it same
Step-by-step explanation:
If am wrong correct me thanks
how can you count the number of ways to assign m jobs to n employees so that each employee is assigned at least one job?
\(n^{m}\) - \((n-1)^{m}\) * m + \((n-2)^{m}\) * (m choose 2) - \((n-1)^{m}\) * (m choose 3) + ... + \((-1)^{(n-1)}\) * \(1^{m}\) * (m choose n-1)
This formula gives the total number of ways to assign m jobs to n employees so that each employee is assigned at least one job.
What is combinatorics?
Combinatorics is a branch of mathematics that deals with counting and arranging the possible outcomes of different arrangements and selections of objects. It is concerned with the study of discrete structures, such as graphs, hypergraphs, and matroids, and their properties.
This problem is a classic example of applying the principle of inclusion-exclusion.
Let's start by assuming that we can assign any number of jobs to each employee, without the constraint that each employee must receive at least one job. In this case, the number of ways to assign m jobs to n employees would be n^m, since each job has n choices of employee to assign it to.
However, we need to subtract the number of cases where at least one employee is left without a job. This can happen in m different ways, since we can choose any of the m jobs to be unassigned. For each of these cases, there are \((n-1)^{m}\) ways to assign the remaining jobs to the n-1 remaining employees.
However, we have now "overcorrected" for cases where more than one employee is left without a job, since we have subtracted those cases twice (once for each pair of employees that are left out). To correct for this, we need to add back in the number of cases where at least two employees are left without a job. This can happen in (m choose 2) ways, since we can choose any pair of jobs to be unassigned. For each of these cases, there are \((n-1)^{m}\) ways to assign the remaining jobs to the remaining n-2 employees.
We continue this process of alternating subtraction and addition for all possible numbers of employees left without a job, up to n-1. The final answer is:
\(n^{m}\) - \((n-1)^{m}\) * m + \((n-2)^{m}\) * (m choose 2) - \((n-1)^{m}\) * (m choose 3) + ... + \((-1)^{(n-1)}\) * \(1^{m}\) * (m choose n-1)
This formula gives the total number of ways to assign m jobs to n employees so that each employee is assigned at least one job.
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HELLO :)) HELP ME WITH THIS PROBLEM:))??
Help with this math problem
Answer:
\(tan \: q = \sqrt{5} \div 2\)
Answer:
√5/2 or 1 (exact value is 2.2360679775/2)
Step-by-step explanation:
Q=2/OP
To find OP the equation will be like this:
2^2+b^2=3^2
4+b^2=9
b=√5
Q=√5/2
WILL MARK BRAINLIEST IF CORRECT!!!!!!!!!!! :) (IMAGE ATTACHED)
Answer:
B
Step-by-step explanation:
just did it
Answer:
\(\huge\boxed{Option \ B: 5\sqrt[3]{10} + 4\sqrt[3]{10} }\)
Step-by-step explanation:
\(\sf 9\sqrt[3]{10} \\We \ can \ split \ 9 \ into\ 5 \ and \ 4\\(5 + 4)\sqrt[3]{10} \\Applying distributive property\\5\sqrt[3]{10} + 4\sqrt[3]{10}\)