Answer:
Step-by-step explanation:
y = 2x + 3
Slope = 2
The slope of the perpendicular line = -1/m = -1/2
m = -1/2 ; (6, -5)
y = mx +b
Here, plugin x = 6 ; y = -5 and m = -1/2
\(-5 = \dfrac{-1}{2}*6+b\\\\-5=-3+b\\\\\\-5 + 3 = b\\\\b = -2\)
Equation of the line: y = mx +b
\(y =\dfrac{-1}{2}x -2\)
Which of the following is an example of cluster sampling? Combining all food workers from the 67 Guilford County elementary schools and randomly choosing 150 at random to interview Randomly choosing 3 food workers from each of the 67 schools and interviewing the ones choosen Randomly choosing 8 elementary schools from the 67 in Guilford county and interviewiing all food workers at each of these schools
Cluster sampling is a method of sampling used in statistics, where the population is divided into several groups called clusters, and some of the clusters are chosen randomly to be included in the sample.
In cluster sampling, all the individuals in a selected cluster are included in the sample. Cluster sampling is useful when the population is too large to be sampled entirely or when the population is geographically dispersed. Randomly choosing 8 elementary schools from the 67 in Guilford county and interviewing all food workers at each of these schools is an example of cluster sampling. This is because the 67 elementary schools are divided into clusters of 8 schools, and a random selection of these clusters is made. Then, all the food workers in the selected clusters are included in the sample, and there is no need to sample food workers from the other schools. In this example, cluster sampling is an effective way of obtaining a representative sample of the food workers in the Guilford County elementary schools.
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freddy is having a fall harvant party for his friends they have 30 to decorate and 36 sets of material to make mini scarecrows how many kids decorate pumpkins and make scarecrows if he wants each person to have the same amount of crafts with nno left overs material
Based on the highest common factor, the number of kids that can decorate 30 pumpkins equally and make scarecrows from the materials without leftovers is 5.
What is the highest common factor?The highest common factor (HCF) is the number that can divide between 30 and 36 without a remainder.
Pumpkins Materials
Units 30 36
HCF 6 6
Average used 5 6
Thus, dividing 30 and 36 by their HCF of 6, respectively, shows that 5 kids can decorate the 30 pumpkins using 6 materials each to make the scarecrows.
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The number of kids who can decorate 30 pumpkins equally and make scarecrows from the materials without leftovers would be; 5.
What is factorization?factorization is the method of breaking a number into smaller numbers that multiplied together will give that original form.
The highest common factor (HCF) is defined as the number which can divide between 30 and 36 without a remainder.
Given that they have 30 to decorate and 36 sets of material to make mini scarecrows.
Their HCF is 6. The averages used are 5 and 6 respectively.
Hence, their HCF of 6, shows that 5 kids can decorate the 30 pumpkins by using 6 materials each to make the scarecrows.
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If a manager were interested in assessing the probability that a new product will be successful in a New Jersey market area, she would most likely use relative frequency of occurrence as the method for assessing the probability. (True or false)
If a manager were interested in assessing the probability that a new product will be successful in a New Jersey market area, she would most likely use relative frequency of occurrence as the method for assessing the probability. The statement is false.
While relative frequency of occurrence can be a useful tool for assessing probability, it is not necessarily the most appropriate method for assessing the success of a new product in a specific market area.
There are a number of factors that a manager would need to consider in order to assess the probability of a new product's success in a particular market. These might include things like the demographics and purchasing habits of the target audience, the level of competition in the area, the marketing and advertising strategies being used, and the overall economic climate of the region.
To gather this kind of information, a manager might conduct market research, perform a SWOT analysis (assessing strengths, weaknesses, opportunities, and threats), or consult with industry experts. This data could then be used to develop a more nuanced understanding of the market conditions and make a more informed estimate about the probability of the product's success.
Overall, while relative frequency of occurrence can be a useful tool for assessing probability, it is not the only or even the most appropriate method for evaluating the potential success of a new product in a specific market area.
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I’ll give brainliest if u help
It’s 19 and 20
Answer:
19. 20 questions total
20. 84.61538461538
Rounded: 85%
Step-by-step explanation:
Using proportion:
a= part
b= whole
a/b=a/b
Answer: Answer for 19 is 20 and answer for 20 is 85%
Hope this helps!
the study of statistics rests on what two major​ concepts?
The study of statistics rests on two major​ concepts probability which is the branch of mathematics that deals with the likelihood of events occurring and Data Analysis is the process of examining and interpreting data in order to gain insights and make better decisions
Probability theory is based on the idea that, given enough data, the frequency of an event can be predicted and allows for the formulation of mathematical models that can quantify the likelihood of particular outcomes. Probability is the foundation of statistics and helps to explain the behavior of chance events.It involves the collection, organization, and analysis of data from a variety of sources, such as survey responses, observations, experiments, or existing databases.
Data analysis is used to identify patterns and relationships in data, draw conclusions, and make decisions. It is an important part of statistics, as it helps to uncover insights that would otherwise remain hidden. Data analysis tools, such as statistical models, can be used to gain greater insight into the data.
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A -10 nC charge is located at (x, y) = (1.2 cm , 0 cm).
What is the x-component of the electric field at the position (x, y) = (−4.1cm, 0 cm)?Express your answer to two significant figures and include the appropriate units.
We can use Coulomb's law to calculate the magnitude of the electric field at a distance r away from a point charge Q:
E = k * Q / r^2
where k is Coulomb's constant, Q is the charge of the point charge, and r is the distance from the point charge.
In this problem, we have a point charge Q of -10 nC located at (1.2 cm, 0 cm), and we want to find the x-component of the electric field at a distance r = 5.3 cm away at position (-4.1 cm, 0 cm).
To find the x-component of the electric field, we need to use the cosine of the angle between the electric field vector and the x-axis, which is cos(180°) = -1.
So, the x-component of the electric field at position (-4.1 cm, 0 cm) is:
E_x = - E * cos(180°) = - (k * Q / r^2) * (-1)
where k = 9 x 10^9 N*m^2/C^2 is Coulomb's constant.
Substituting the given values, we get:
E_x = - (9 x 10^9 N*m^2/C^2) * (-10 x 10^-9 C) / (0.053 m)^2
E_x ≈ -30,566.04 N/C
Rounding this to two significant figures and including the appropriate units, we get:
The x-component of the electric field is about -3.1 x 10^4 N/C (to the left).
Which of the following is true?
100 x 1,000 = 107
10 x 1,000 = 105
0.01 x 103 = 100
0.001 x 105 = 100
Answer:
the second one
Step-by-step explanation:
hope helpful
The true expression is,
⇒ 0.001 x 10⁵ = 100
Here,
We have to find the true expression.
What is an expression?
Expression in math is defined as the collection of the numbers, variables and functions by using signs like addition, subtraction, multiplication, and division.
Now,
Since, In first expression;
100 x 1000 = 10⁵
Which is not equal to 10⁷.
Hence, The first expression is not true.
In the second expression;
10 x 1000 = 10⁴
Which is not equal to 10⁵.
Hence, The second expression is not true.
In the third expression;
0.01 x 10³ = 10
Which is not equal to 100.
Hence, The third expression is not true.
In the Fourth expression;
0.001 x 10⁵ = 100
Hence, The fourth expression is true.
Therefore, The true expression is,
⇒ 0.001 x 10⁵ = 100
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answer choices:
a. 28°
b. 124°
c. 36°
d. 56°
Answer:
Step-by-step explanation:
m<5+m<4=180
4x+12+2x=180
6x=180-12
6x=168
x=28
m<5=4x+12
m<5=4*28+12=124
Add 3/7 + 4/5 please helppppp me
- 3 ( n + 5 ) = 12
What is N?
Find parametric equation for the tangent line to the curve given by x(t)=e^-t cos(t), y(t) =e^-t sin(t), z(t)=e^-t and point p(1,0,1)
The parametric equation for the tangent line to the curve is x = 1 - t, y = t, z = 1 - t.
For this question,
The curve is given as
x(t)=e^-t cos(t),
y(t) =e^-t sin(t),
z(t)=e^-t
The point is at (1,0,1)
The vector equation for the curve is
r(t) = { x(t), y(t), z(t) }
Differentiate r(t) with respect to t,
x'(t) = -e^-t cos(t) + e^-t (-sin(t))
⇒ x'(t) = -e^-t cos(t) - e^-t sin(t)
⇒ x'(t) = -e^-t (cos(t) + sin(t))
y'(t) = - e^-t sin(t) + e^-t cos(t)
⇒ y'(t) = e^-t ((cos(t) - sin(t))
z'(t) = -e^-t
Then, r'(t) = { -e^-t (cos(t) + sin(t)), e^-t ((cos(t) - sin(t)), -e^-t }
The parameter value corresponding to (1,0,1) is t = 0. Putting in t=0 into r'(t) to solve for r'(t), we get
⇒ r'(t) = { -e^-0 (cos(0) + sin(0)), e^-0 ((cos(0) - sin(0)), -e^-0 }
⇒ r'(t) = { -1(1+0), 1(1-0), -1 }
⇒ r'(t) = { -1, 1, -1 }
The parametric equation for line through the point (x₀, y₀, z₀) and parallel to the direction vector <a, b, c > are
x = x₀+at
y = y₀+bt
z = z₀+ct
Now substituting the (x₀, y₀, z₀) as (1,0,1) and <a, b, c > into x, y and z, respectively to solve for the parametric equation of the tangent line to the curve, we get
x = 1 + (-1)t
⇒ x = 1 - t
y = 0 + (1)t
⇒ y = t
z = 1 + (-1)t
⇒ z = 1 - t
Hence we can conclude that the parametric equation for the tangent line to the curve is x = 1 - t, y = t, z = 1 - t.
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In the game of Roulette, if you place a $10 bet on number 12, there are two possible outcomes:
either you profit $350, or you lose $10. (The prize is $360 but subtracting the $10 bet equals a net gain of
$350). The probability that you win is 1
38
and the probability that you lose is
37
38
.
a. Calculate the expected value of how much money you’ll get if you bet $10 on number 12 in Roulette.
Show full work to receive credit.
b. Based on your expected value from part a, is it a good idea to play Roulette over and over again? Give
a mathematical explanation for your answer.
a. To calculate the expected value of how much money you’ll get if you bet $10 on number 12 in Roulette, we can use the formula: Expected Value = (Probability of Winning * Amount Won) - (Probability of Losing * Amount Lost)
In this case, the probability of winning is 1/38, and the amount won is $350. The probability of losing is 37/38, and the amount lost is $10. Substituting these values into the formula, we get: Expected Value = (1/38 * $350) - (37/38 * $10)
Expected Value = $9.21 Therefore, the expected value of how much money you’ll get if you bet $10 on number 12 in Roulette is $9.21. b. Based on the expected value from part a, it is not a good idea to play Roulette over and over again. The reason is that the expected value is positive but small. This means that on average, you will win $9.21 for every $10 you bet, but the variance in the game can cause you to lose money in the long run.
For example, if you play 100 rounds of Roulette with a $10 bet on number 12 each time, you would expect to win $921 on average. However, there is a significant chance that you could lose money over these 100 rounds. The more you play, the greater the likelihood of experiencing a losing streak that would offset your winnings.
Therefore, while playing Roulette can be fun and exciting, it is not a sustainable way to make money. The small expected value means that over time, the casino will always come out ahead.
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write down the name of shape W
A hexagon with two lines
hope helped you please make me brainalist and keep smiling dude
I hope you are form India
A tree is 18 feet tall. A wire runs from the top of the tree to a point 4 feet from its base. The wire is √340 feet long. Estimate the length of the wire to the nearest hundredth of a foot. The wire is about (Blank) feet long.
Answer:
The wire is about 18.44 feet long.
Step-by-step explanation:
From the question:
The wire is √340 feet long.
This implies that the length of the wire is √340 feet.
Converting the value of this length (√340) to decimal gives;
√340 = 18.439
Now, let's convert 18.439 to the nearest hundredth of a foot.
18.439 ≅ 18.44
Therefore, the length of the wire to the nearest hundredth of a foot is 18.44 feet.
In other words, the wire is about 18.44 feet long.
URGENT PLEASE HELP!!!! GIVING BRAINLIEST!! If you answer this correctly ill answer some of your questions you have posted! (39pts)
Answer:
Here is the answer I solved.
Bob and Alice each have a bag that contains one ball of each of the colors blue, green, orange, red, and violet. Alice randomly selects one ball from her bag and puts it into Bob’s bag. Bob then randomly selects one ball from his bag and puts it into Alice’s bag. What is the probability that after this process the contents of the two bags are the same? (Hint: you can simplify your solution using "without loss of generality".)
The probability that after this process the contents of the two bags are the same is 1/30 or approximately 0.0333.
Without loss of generality, we can assume that Alice selects a ball from her bag and puts it into Bob's bag first.
At the start, there are a total of 5 balls in each bag, so the probability of Bob selecting the same ball that Alice put into his bag is 1/5. After this exchange, each bag now contains 6 balls.
Now, Alice randomly selects a ball from her bag, which has 6 balls in total. The probability of Alice selecting the same ball that Bob put into her bag is also 1/6.
To find the overall probability, we multiply the probabilities of both events occurring:
Probability = (1/5) \(\times\)(1/6) = 1/30.
Therefore, the probability that after this process the contents of the two bags are the same is 1/30 or approximately 0.0333.
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Which of the following points is a solution for the system of inequalities?
A.(4, 2)
B.(0, -6)
C.(-5, 1)
D.(3, 4)
Change the following fraction to a decimal. (Carry the division for three places as indicated. Do not round your answer.)
1/64 =
1/64 fraction is equal to 0.015625 in decimal form.
To change the fraction 1/64 to a decimal, we need to perform division.
1 divided by 64 can be written as:
0.015625
----------
64 | 1.000000
0
10
0
The result of the division is 0.015625. This means that 1/64 is equal to 0.015625 in decimal form.
Note that in this case, we carried the division out to six decimal places, but the question specified that we should carry it out to three decimal places. In that case, we would round the answer to 0.016.
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The boston marathon is 26.2 miles use the time shown in the table to calculate the miles per hour for joshua cassidy
Answer:
he finished 20.045 miles in 1 hour
i think this is what the question is asking
Answer:
See Explanation
Step-by-step explanation:
Use the formula rate = distance/time
Rate= 26.2/1.307
Rate= 20.06 Mph
Help plssssssssssssssssssss
Answer: Distributive Property
Step-by-step explanation:
if you multiply x by y it is xy and if you multiply x by z its xz so that makes it equal to xy+xz
18 pounds of bananas cost $216 how many pounds of bananas can you get with $324?
Answer for this...increasing percentages
Answer:
Since it's increasing add 3.5% to 100%
= 103.5% of £16470.45
= 103.5/100 × 16470.45
= 17046.92
= £17046.92
Hope this helps.
please help ‼️‼️
i’ll give the brainliest thing if it’s correct
Illustra
i Mathe
4. A student has these scores on their assignments. The teacher is considering droppi
a lowest score. What effect does eliminating the lowest value, 0, from the data set
have on the mean and median?
0, 40, 60, 70, 75, 80, 85, 95, 95, 100
We can conclude that the value of both mean and median increases when we remove the lowest value, 0, from the data set.
What do we mean by mean and median?The mean is the average of a set of values in mathematics and statistics. The mean can be calculated in a variety of ways, including the simple arithmetic mean (add the numbers and divide the total by the number of observations), geometric mean, and harmonic mean.The median is the number in the middle of a sorted list of numbers, and it is more descriptive of the data set than the average. When there are outliers in the sequence that could skew the average of the values, the median is sometimes used instead of the mean.(1) First, we have to find the value of the mean and median with the value of 0.
(A) Mean: Sum of all values/Number of terms
= 700/10= 70(B) Median: If the number is an even number, add the two middles and divide by 2.
= 75 + 80/2= 155/2= 77.5(2) Now, we have to find the value of the mean and median without the value of 0.
(A) Mean: Sum of all values/Number of terms
= 700/9= 77.77(B) Median: If there are an odd number of observations, the number in the middle of the list is the median.
= 5th term from both sides is the middle value= 80Therefore, we can say that the value of both mean and median increases when we remove the lowest value, 0, from the data set.
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find the area of the figure. round the the hundredths place when necessary.
Answer:
48
Step-by-step explanation:
Its 12 x 4. Which is 48
Let V be a vector space v,u in V and let T1:V->V and T2 be a linear transformation such that T1(v)=2v-7u,T1(u)=-6v+3u, T2(v)=4v+2u, and T2(u)=-7u-4u.
Find the images of v and u under the composite of T1 and T2
(T2T1)(v)=________
(T2T1)(u)=________
To find the images of v and u under the composite transformation (T2T1), we need to apply the linear transformations T1 and T2 in sequence.
Let's start by calculating (T1(v)):
T1(v) = 2v - 7u
Next, we apply T2 to the result:
T2(T1(v)) = T2(2v - 7u)
Using the given values for T2, we substitute v and u:
T2(T1(v)) = T2(2v - 7u) = 2(2v - 7u) + 2(-6v + 3u)
Simplifying further:
T2(T1(v)) = 4v - 14u - 12v + 6u
Combining like terms:
T2(T1(v)) = -8v - 8u
Therefore, the image of v under the composite transformation (T2T1) is -8v - 8u.
Similarly, let's calculate (T1(u)):
T1(u) = -6v + 3u
Now we apply T2 to the result:
T2(T1(u)) = T2(-6v + 3u) = 4(-6v + 3u) + 2(-7u - 4u)
Simplifying further:
T2(T1(u)) = -24v + 12u - 14u - 8u
Combining like terms:
T2(T1(u)) = -24v - 10u
Therefore, the image of u under the composite transformation (T2T1) is -24v - 10u.
In summary:
(T2T1)(v) = -8v - 8u
(T2T1)(u) = -24v - 10u
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A=3 and B=5, evaluate the following:
5logA^1/2 + log B
The value of the expression 5log(A^(1/2)) + log(B) with A = 3 and B = 5 is approximately 1.8929.
To evaluate the expression 5log(A^(1/2)) + log(B) with A = 3 and B = 5, we substitute the given values into the expression:
5log(3^(1/2)) + log(5)
First, let's simplify the term inside the logarithm.
3^(1/2) represents the square root of 3, which is approximately 1.732.
Now we substitute this value back into the expression:
5log(1.732) + log(5)
Using a calculator, we can find that log(1.732) is approximately 0.2388.
Now we substitute this value back into the expression:
5(0.2388) + log(5)
Evaluating the expression further, we find:
1.194 + log(5)
The logarithm of 5 is approximately 0.6989.
Substituting this value into the expression, we have:
1.194 + 0.6989
Adding these values together, we get:
1.8929
Therefore, the value of the expression 5log(A^(1/2)) + log(B) with A = 3 and B = 5 is approximately 1.8929.
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What is the equation of the line?
The length of a rectangle is 2cm more twice the width. If each dimension were increased by 2, the area would be at least 180 cm^2 greater. Find the smallest possible dimensions for the rectangle.
Answer:ok I see
Step-by-step explanation:
Now
Which two angles below are supplementary
Answer:
41° and 139°
45° and 145°
Step-by-step explanation:
Supplementary angles refers to two angles which measures up to 180°.
Therefore, it is safe to say that, angle in supplementary angles = 180°
23° and 147°
= 23° + 147°
= 170°
Not supplementary
41° and 139°
= 41° + 139°
= 180°
Supplementary angle
30° and 60°
= 30° + 60°
= 90°
Not supplementary angle
45° and 145°
= 45° + 145°
= 180°
Supplementary angle