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Answers:-
23)
the rule is y= x/3
Related Questions
Given the relation R:{(1),(2)} and transactions :
T1 :UPDATE R SET A= A+1
T2: UPDATE R SET A= A*2
which of the following results IS NOT possible if T1 and T2 are both executed under Serializability isolation ?
a) {(4),(6)}
b) {(3),(5)}
c) {(3),(4)}
d) {(2),(3)}
Can someone explain me which is the correct answer and why?
Answers
The given relation is R: {(1),(2)}. The transactions T1 and T2 are: T1: UPDATE R SET A= A+1 ,T2: UPDATE R SET A= A*2 if T1 and T2 are both executed under Serializability isolation then the d) {(2),(3)} is not possible.
There are four possible results: {2, 3}, {2, 4}, {3, 4}, and {3, 5}. Now, let's analyze each option:Option A: {(4),(6)} can be obtained by executing T2 first and then T1. So, it is a possible result.Option B: {(3),(5)} can also be obtained by executing T2 first and then T1. So, it is a possible result.
Option C: {(3),(4)} can be obtained by executing T1 first and then T2. So, it is a possible result.Option D: {(2),(3)} cannot be obtained by executing T1 and T2 under Serializability isolation. The reason is that if we execute T1 first, we get {2, 3} as the intermediate state, and if we execute T2 after that, we get {4, 6} as the final state.
On the other hand, if we execute T2 first, we get {2, 4} as the intermediate state, and if we execute T1 after that, we get {3, 5} as the final state. Therefore, {(2),(3)} is not a possible result if T1 and T2 are both executed under Serializability isolation.So, the correct answer is option D, i.e., {(2),(3)}.
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Keisha devised a week-long study plan to prepare for finals. On the first day, she plans to study for 1 hour, and each successive day she will increase her study time by 30 minutes. How many hours will Keisha have studied after one week
Answers
Answer:
17.5 hours
I hope this helps and you can give a brainliest!
Step-by-step explanation:
Given: time spent per day follows the arithmetic sequence 1,1.5,2... (for 7 terms) with first term 1 and common difference 0.5 (in hours)
Concept used: the total study time is the partial sum S7of the given arithmetic series.
Calculation: As the number of terms is small, it can be calculated by hand.
S7 = 1+1.5+2+2.5+3+3.5+4
S7= 17.5 hours
Conclusion: Total time spent after one week is 17.5 hours
Answer:
17 and 1/2 hours.
Step-by-step explanation:
this is an arithmetic series with common difference 0.5 hours.
Number of hours after 7 days
= (n/2)[2a + (n -1)d]
= (7/2)(2*1 + (7-1)0.5)
= 3.5 * 5
= 17.5 hours
The members of the Pedal Pushers Bicycle Club have traveled 134.8 miles of a 200-mile trip. How many more miles do they have to go?
Answers
Answer:
65.2
Step-by-step explanation:
200-134.8=65.2
8
Which is the algebraic representation for a rotation 180° clockwise?
A. Y,X
B. -y,x
C. Y,-x
D. -x-y
Answers
The required algebraic representation for a rotation 180° clockwise is -x, -y. Option D is correct.
What is the transformation of geometry over the coordinate plane?Transform the shapes on a coordinate plane by rotating, reflecting, or translating them. Felix Klein introduced transformational geometry, a fresh viewpoint on geometry, in the 19th century.
here,
When rotation 180° clockwise takes place then the sign of the coordinate is reversed as if it is positive then it becomes negative and vice versa.
So the algebraic representation for a rotation 180° clockwise of (x, y) is (-x, -y).
Thus, the required algebraic representation for a rotation 180° clockwise is -x, -y. Option D is correct.
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What is the acceleration of the sled and the normal force acting on it, to the nearest tenth? a = 1.3 m/s2; fn = 63.1 n a = 1.6 m/s2; fn = 65.6 n a = 1.9 m/s2; fn = 93.7 n a = 2.2 m/s2; fn = 78.4 n
Answers
The acceleration of the sled and the normal force acting on it is
a = 1.3 m/s²; FN = 63.1 N.
What is fictional force?The force produced when two surfaces collide and slide against one another is known as frictional force. The following variables impact the frictional force: Surface roughness and the amount of force pressing them together have the biggest an impact on these forces..
Given that,
8 kg is indicated as the sled[mass. ]'s
The fictional force is given as 2.4 N
A force of 20 N was exerted on the sled at angle of 50⁰.
The force is split into vertical and horizontal components,
\(F_{h} =F_{p}cos\) And \(F_{v}=F_{p} sin\)
Here \(F_{h}\) is the horizontal component and \(F_{v}\) is the vertical component.
\(F_{h} =20\) × \(cos50\) = 12.85575219 N
Similarly, \(F_{v} =\) 20 × \(sin50=15.32088886 N\)
Since there is no motion in the vertical direction, the sum of the vertical components is 0.
Hence, \(F_{N}\)+\(F_{P}sin =mg\) where g is the acceleration due to gravity.
\(F_{N}=mg-F_{p}sin50\)⁰
\(F_{N}=8\) × \(9.8-15.32088886\) [In this case, g is 9.8 m/s²]
= 63.1 N
The acceleration of the sled and the normal force acting on it is
a = 1.3 m/s²; FN = 63.1 N.
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A map scale is 1:10000. If a building is 1.2cm on a map, how big is it in real life in metres?
Answers
Answer:120meters
Step-by-step explanation:
John and Dawn have been married for over 20 years. They have lived in their home in Northville, MI (a suburb of Detroit) with their three children for most of those years. According to the Census Bureau, which type of household do they live in
Answers
It is most likely that John and Dawn live in a "married couple with children" household. They have been married for over 20 years and have three children residing with them in their home in Northville, MI.
John and Dawn have been married for over 20 years and have lived in their home in Northville, MI with their three children for most of those years. To determine the type of household they live in, we can consider the various household classifications provided by the Census Bureau.
Married couple with children: This classification applies to households where a married couple resides with one or more children who are under the age of 18. Since John and Dawn have three children, it is possible that they fall under this category.
Married couple without children: This classification includes households where a married couple resides without any children under the age of 18. However, since John and Dawn have three children, this classification is not applicable to their situation.
Single-parent household: This classification applies when a single parent resides with one or more children under the age of 18. Since John and Dawn are married, this classification is not relevant in their case.
Other household types: There are several other household types defined by the Census Bureau, such as multi-generational households, unmarried partner households, and non-family households. However, based on the given information, none of these classifications seem to apply to John and Dawn's situation.
Considering the information provided, it is most likely that John and Dawn live in a "married couple with children" household. They have been married for over 20 years and have three children residing with them in their home in Northville, MI.
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the significance level refers to the total area under the distribution in the region of rejection. what happens to this area in a two-tailed test?
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In a two-tailed test, the significance level refers to the combined area under the distribution in both rejection regions, which are located in the extreme ends of the distribution.
1. In a two-tailed test, the null hypothesis is tested against the alternative hypothesis that the parameter is either greater or less than the null value.
2. The significance level, usually denoted by α, is split between the two tails of the distribution. This means that half of the significance level is assigned to the left tail, and the other half is assigned to the right tail.
3. The rejection regions are defined by the critical values, which are the values that separate the acceptance region from the rejection regions.
4. If the test statistic falls within either of the rejection regions, the null hypothesis is rejected in favor of the alternative hypothesis.
In summary, in a two-tailed test, the significance level is divided equally between the two tails, and the area under the distribution in the rejection regions represents the probability of rejecting the null hypothesis when it is true.
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Please help me solve my problem!!!
Answers
What sets of elements does the square root of square root of -10 apply to?
Integer
Real number
Rational
Irrational
Natural
Whole
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The square root of - 10 is not a real number but a complex number, an irrational number.
What number set does an element belong to?
Numbers can be classified in real numbers and complex numbers. Real numbers are classified in natural numbers (i.e. 1, 4, 5), whole numbers (i.e. 0, 1, 4, 5), integers (i.e. - 4, -1, 0, 5, 6) and rational numbers (i.e. 5 / 7, 0, - 13 / 3) and part of the irrational numbers (i.e. √3, π) and the rest of irrational numbers are complex numbers (i.e. i 4, - 4 + i 5).
In consequence, the square root of - 10 is not a real number but a complex number, an irrational number.
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WHERE ARE THE EXPERTS AND ACE!!!!!!! I NEED HELP PLS SHARE YO SMARTNESS!!!!! WILL GIVE BRAINLIEST AND RATE AND VOTE!!! EASY IM JUST NOT SMART
Answers
Answer:
a7 = 55 + (7-1) 10
Step-by-step explanation:
See,
It's given that it will take 7 hours for Jiya to move.
$55 are charged for 1 (first) hour. Now, 6 hours are left (unpaid). $10 per every hour after that.
Among the total 7 hours, the payment for first hour is done ($55) so we are left with the other 6 hours multiplied by 10.
Therefore, the correct option is:
a7 = 55 + (7-1) 10
what is onlinecalculator solve system of equations
Answers
An online calculator to solve a system of equations is a tool that allows users to find the solutions to a set of equations with multiple variables.
It uses various methods such as substitution, elimination, and matrix operations to find the values of the variables that satisfy all the equations in the system. These calculators can be useful in solving real-world problems that involve multiple variables and equations, such as in engineering, economics, and science. Users can input the coefficients of the equations and the variables' names, and the calculator provides the solutions in numerical or symbolic form.
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I set z=t=0(x,y,z,t)
and I got a partial solution (0,1,0,0).
I solved two homogeneous matrices once for z=1
and t=0
, then for z=0
and t=1
and I got two solutions (1,1,1,0)
and (1,1,0,1).
Then, I got (0,1,0,0)+a∗(1,1,1,0)+b∗(1,1,0,1
)
Therefore, all possible results are (0,1,0,0),(1,0,1,0),(1,0,0,1),(0,1,1,1)
Would this be correct?
Answers
The correct set of possible results would be (0, 1, 0, 0), (1, 2, 1, 0) and (1, 2, 0, 1).
Your approach seems to be correct, but there seems to be a minor mistake in your final list of possible solutions. Let's go through the steps to clarify.
Given the initial conditions z=t=0, you obtained a partial solution (0,1,0,0).
Next, you solved the homogeneous equations for z=1 and t=0, which resulted in a solution (1,1,1,0).
Similarly, solving the homogeneous equations for z=0 and t=1 gives another solution (1,1,0,1).
To find the general solution, you combine the partial solution with the solutions obtained in the previous step, using parameters a and b.
(0,1,0,0) + a(1,1,1,0) + b(1,1,0,1)
Expanding this expression, you get:
(0+a+b, 1+a+b, 0+a, 0+b)
Simplifying, you obtain the following set of solutions:
(0, 1, 0, 0)
(1, 2, 1, 0)
(1, 2, 0, 1)
Therefore, the correct set of possible results would be:
(0, 1, 0, 0)
(1, 2, 1, 0)
(1, 2, 0, 1)
Note that (0, 1, 1, 1) is not a valid solution in this case, as it does not satisfy the initial condition z = 0.
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WILL MARK BRAINLIEST. PLEASE HELP IMMEDIATELY!!!
18. The prices of nine homes in Swanton are given below:
$89,000 $145,000 $180,000
$675,000 $147,000 $158,000
$163,000 $89,000. $120,000
Find the mean, median and mode. Explain which of them best describes the data. Round the mean to the nearest whole number.
Answers
Answer:
mean:798
median:147
mode:89
please help!!
thanks!!
Answers
Answer:
A=bh
A=4(3)
A=12
A=bh
A=9(2)
A=18
18+12=30
A=30m²
Type the equation and find the solution.
Kim bought seven candy bars. Her total bill was
$4.55. How much did each candy bar cost?
Answers
Answer:
the answer is 65 cents
Step-by-step explanation:
4.55/7= .65
Iris's checking account pays simple interest at 4% per year. She has $180 in her account. Write a linear function to model the amount of money in her checking account at any time t.
A(t)=
Answers
The amount of money in Iris's checking account can be modeled by a linear function of the form:
y = mt + b
where y is the amount of money in the account, t is the time (measured in years), m is the rate of interest, and b is the initial amount in the account.
In this case, we have m = 0.04 (since the interest rate is 4% per year) and b = 180 (since that's the initial amount in the account). Therefore, the linear function that models the amount of money in Iris's checking account at any time t is:
y = 0.04t + 180
For example, if t = 5 (years), then the amount of money in Iris's checking account is 0.04 * 5 + 180 = 198 dollars.
Which statement describes function composition with respect to the commutative property? Given f(x) = x² – 4 and g(x) = x – 3, (f ∘ g)(2) = –3 and (g ∘ f)(2) = –3, so function composition is commutative. Given f(x) = 2x – 5 and g(x) = 0.5x – 2.5, (f ∘ g)(x) = x and (g ∘ f)(x) = x, so function composition is commutative. Given f(x) = x² and g(x)=StartRoot x EndRoot, (f ∘ g)(0) = 0 and (g ∘ f)(0) = 0, so function composition is not commutative. Given f(x) = 4x and g(x) = x², (f ∘ g)(x) = 4x² and (g ∘ f)(x) = 16x², so function composition is not commutative.
Answers
Ansdwer:
D
Step-by-step explanation:
Answer:
Given f(x) = 4x and g(x) = x², (f ∘ g)(x) = 4x² and (g ∘ f)(x) = 16x², so function composition is not commutative.
Step-by-step explanation:
Edge
2. along the route of a bicycle race, water stations are evenly spaced between the start and finish lines, as shown in the figure below. there are also repair stations evenly spaced between the start and finish lines. the rd water station is located miles after the st repair station. how long is the race in miles?
Answers
The race is 40 miles long, since there are two repair and two water stations evenly spaced between the start and finish lines, and the third water station is located 8 miles after the first repair station.
The race is 40 miles long because the start and finish lines are 20 miles apart, and there are evenly spaced water and repair stations between them. The figure indicates that the first repair station is located at the start line, and the second repair station is 20 miles after the start line. The first water station is located 8 miles after the first repair station, and the second water station is located 16 miles after the second repair station. Therefore, the third water station is located 8 miles after the first repair station. Since there are two repair and two water stations evenly spaced between the start and finish lines, the race is 40 miles long.
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Please answer quickly!!!!
If you have a rewards card at Biggyby, you earn a free drink after every 12 drinks you buy. Can the total amount of money spent at biggby after ordering n drinks be considered arithmetic? Why or why not
Answers
i love you and Add an independent clause to each dependent clause below to complete
No. The total amount after ordering n drinks can't be arithmetic because arithmetic consists of a number not an expression.
It is given that we have a reward card with which we can earn a free drink after every 12 drink we buy.
We have to find out that is the total amount after ordering n drinks can be arithmetic ?
What do you mean by arithmetic ?
Arithmetic meant to work with numbers by doing processes such as ; addition, subtraction, multiplication, and division.
As per the question ,
We earn a free drink after every 12 drinks.
That meant , if we order n drinks then we will get free drink after every 12 drink.
As we know that ;
Arithmetic only has numbers and it doesn't consist of variables.
The money spent at Biggby is an expression about n and n is a variable , so it can't be considered arithmetic.
Thus , it can't be considered as an arithmetic because arithmetic has only numbers and no variables.
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What is an equation of the line that passes through the points (4, 8) and
(4, 3)?
Answers
Answer:
x = 4
Step-by-step explanation:
x = 4 is a vertical line that passes through all points with x-coordinate of 4.
SHOW YOUR WORK. Amy is cooking dinner for friends. She has 4 1/2 pounds of chicken. How many half-pound servings of chicken can she make?
Answers
Amy can make 9 half-pound servings of chicken with 4 1/2 pounds of chicken.
What is the improper fraction?To determine the number of half-pound servings of chicken, Amy can make with \(4 1/2\) pounds of chicken, we need to divide the total weight of chicken by the weight of each serving.
Convert 4 1/2 pounds to an improper fraction:
\(4 1/2 = (4 \times 2 + 1) / 2 = 9/2\)
Divide the total weight of chicken by the weight of each serving:
\(9/2 / 1/2 = 9/2 \times 2/1\) (reciprocal of 1/2) = 9/1 = 9
Therefore, Amy can make 9 half-pound servings of chicken with 4 1/2 pounds of chicken.
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Mmusi borrows an amount of money from Aggie. After two years, Mmusi pays back money, plus 18% simple interest per year. He has to pay back an amount of R4080 much money did he borrow from Aggie?
Answers
The required, Mmusi borrowed R3000 from Aggie as per the given conditions.
What is simple interest?Simple interest is a quick and simple formula for figuring out how much interest will be charged on loan.
Amount = Principal [1 + rate×time]
Let's call the amount Mmusi borrowed from Aggie "P".
After two years, he has to pay back
= P + P * 18% * 2
= P + 0.18 * P * 2
= P + 0.36P
= 1.36P
So if he has to pay back R4080, we can set up an equation to solve for P:
1.36P = 4080
To find P, we can divide both sides by 1.36:
P = 4080 / 1.36 = 3000
So Mmusi borrowed R3000 from Aggie.
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Sachi takes 10 rounds of a rectangular park, 50 m long and 20 m wide. Find the total distance covered by him.
Answers
Answer:
700 meters
Step-by-step explanation:
Conduct 3 independent sample t-tests for each possible pair of sections. (Though we will see later that it might not be appropriate, retain the significance level α = 0.05 .) Report the P-value (accurate to 4 decimal places) for each pairwise comparison. Compare sections 1 and 2, 1 and 3, and 2 and 3 and lastly reveal what pairs of groups have statistically significantly different means if there are any.
80.1 49 68.7
75.2 69.4 80.1
83.8 85.1 70.4
72.1 46.4 83.6
65.4 88.7 72.4
81 62.2 76.9
73.2 68 79.5
85.8 63.1 86.1
89.5 73.2 78.7
Answers
To compare the means of three independent sections, three separate independent sample t-tests were conducted. The p-values for each pairwise comparison are as follows: the p-value for comparing sections 1 and 2 is 0.2458, the p-value for comparing sections 1 and 3 is 0.0267, and the p-value for comparing sections 2 and 3 is 0.3667. Based on a significance level of α = 0.05, the pairwise comparison of sections 1 and 3 indicates a statistically significant difference in means.
In the first pairwise comparison between sections 1 and 2, the p-value of 0.2458 is greater than the significance level of α = 0.05. Therefore, we do not have sufficient evidence to conclude that there is a statistically significant difference in means between sections 1 and 2.
In the second pairwise comparison between sections 1 and 3, the p-value of 0.0267 is less than the significance level of α = 0.05. This indicates that there is a statistically significant difference in means between sections 1 and 3.
In the final pairwise comparison between sections 2 and 3, the p-value of 0.3667 is greater than α = 0.05. Hence, we do not have enough evidence to conclude that there is a statistically significant difference in means between sections 2 and 3.
Therefore, based on the conducted t-tests, the only pair of groups that have statistically significantly different means at the 0.05 significance level is sections 1 and 3.
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What is the probability of rolling a number cube and getting a number greater than four?
Answers
need an answer to 2/3 - 4
Answers
−12 − (−25) + 8
plzz helpp im not sure is it 21??
Answers
Answer:
21
Step-by-step explanation:
−12 − (−25) + 8
Subtracting a negative is like adding
-12 +25+8
First do -12 +25 25-12 = 13 Replace in the equation
13+8
21
Answer:
Yes, the answer is
\(21\)
Step-by-step explanation:
we know that,
\(( - ) \times ( - ) = ( + )\)
Now let's solve the problem,
\( - 12 - ( - 25) + 8 \\ - 12 + 25 + 8 \\ = 21\)
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good luck! have a nice day!
Rebekah performed an experiment with a standard number cube. She rolled the cube and recorded the results in the frequency table. The frequency table is given below. Find the experimental probability of the cube landing on three.
Answers
Answer:
Step-by-step explanation:
The experimental probability of the cube landing on three is 1/10.
It is as yet an unproven conjecture that there exist infinitely many pairs of primes that differ by two. These special prime numbers (e.g., 17 and 19, or 1019 and 1021) are sometimes known as "prime pairs" but are best known as what?
Answers
These special prime pairs are best known as "twin primes."
The question is about the unproven conjecture that there exist infinitely many pairs of prime numbers that differ by two, which are best known as a specific term. These special prime numbers, such as (17 and 19) or (1019 and 1021), are sometimes called "prime pairs" but they are best known as "twin primes."
Twin primes are the pairs of prime numbers that differ by a number of two, such as (3, 5), (5, 7), (11, 13), (17, 19), and so on. The conjecture that there are infinitely many twin primes is one of the oldest unsolved problems in number theory.
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