By rewriting the 3 given systems, we will see that:
1) Independent and consistent.
2) Independent and inconsistent.
3) Dependent.
Let's analyze each system.
Let's look at the first one, we can rewrite it as:
y = 2x + 3
y = -x - 3
So, the slopes are different, meaning that we have one solution, so this system is consistent and independent.
Now let's look at the second system, we can rewrite it as:
y = 3x - 2
y = 3x + 2
Here both lines have the same slope, so the lines never do intersect, meaning that the system is inconsistent and independent.
For the final system, we have:
y = (-1/2)*x + 2
y = (-1/2)*x + 2
So, we have two equal lines, so this system is dependent.
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Which number is NOT a common
of the fractions being
denominator
added?
2/9 + 5/12
A 108
(B) 72
(C) 36
(D) 24
Check the picture below.
now, doing a prime factoring on both the denominators, notice, the repeated factors get used only once in the LCD calculation, so the red "3" only goes once in the LCD and then the others, so the LCD for both of those is 3*3*2*2 = 36.
"L" in LCD stands for Least, so that's the smallest, however we can have a CD that's no small and is simply a multiple of the LCD, let's check who isn't an LCD or CD
[tex]\begin{array}{rllll} 108=3\cdot 36 & \bigotimes\\\\ 72=2\cdot 36& \bigotimes\\\\ 36=1\cdot 36&\bigotimes\\\\ 24&\textit{\LARGE \checkmark} \end{array}[/tex]
Statistics and Probability
The science of statistics focuses on creating and researching strategies for gathering, analysing, interpreting, and presenting empirical data.
How would you define statistics?Data is frequently presented in graphs, tables, and charts that analyse the data and aid in problem- and decision-solving. Calculating the sample size and population, determining the mean, mode, and median, as well as the standard deviation and variance, are some of the most crucial statistical calculations. Data, which can take the form of words or numbers, are the actual values of the variable.
What are statistics and their various forms?Statistics is a technique for interpreting, analysing, and summarising data in mathematics. In light of these characteristics, the various statistical types are divided into: Statistics that are descriptive and inferential.
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Please help me with this question.
7. The statement regarding the set is false.
8. The statement regarding the set is correct.
How to analyze the statements?In problem 7, we are given the subsets of a set, and then the statement is that the subset {a,e} is contained into the set S.
The subset {a,e} is not one element of the set S, which are a, ... {e, empty}, hence the statement is false.
In problem 8, we are given the union operation, which has the result given by the elements that belong to at least one of the sets.
The empty set belongs to set T, hence it belongs to the union of sets S and T, and thus the statement is correct.
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HELP PLS FAST
Consider the following computer output for a linear regression of height on
According to the representation of the linear model, the balloon's height is zero feet after 15 seconds.
Explain about the inear regression?Depending on the context, the word "linear model" in statistics might signify many things.
The phrase is frequently used interchangeably with a linear regression model since it most frequently relates to regression models.
The phrase has a different connotation when applied to time series analysis.
In each instance, "linear" refers to a subclass of models for which the complexity of the underlying statistical theory can be greatly reduced.
The linear model shows that the water balloon is launched from a height of 40 feet above.
The linear model shows that the water balloon is launched from a height of 40 feet above.
Now, the balloon rises to a height of 70 feet before falling back to the ground as a result of gravity.
After about ten seconds, the balloon lands on the surface and makes a splash.
The balloon will therefore stay on the ground for a while longer.
As a result, the balloon's height at time 15 seconds is always 0 feet, according to the linear model.
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The difference of -1/5 of a number and 1 is 12. PLEASE HELP!!!!!!! DUE IN 30 MINUTES!!!!!!
The value of the unknown number x is given as follows:
x = -65.
How to obtain the value of the number?The number is unknown, hence the variable is given as follows:
x.
-1/5 of the number is given as follows:
-1/5x = -x/5.
The difference of -1/5 of a number and 1 is given as follows:
-x/5 - 1.
The difference has a result of 12, hence:
-x/5 - 1 = 12.
Then the variable x is obtained as follows:
-x/5 = 13
x = -13 x 5
x = -65.
Missing InformationThe problem asks for the value of the unknown number.
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If the line segment joining the points A (x1, y1) and B(x2, y2) is divided by a point P in the ratio 1 : k internally,then the coordinates of the point P are
If the line segment joining the points A (x1, y1) and B(x2, y2) is divided by a point P in the ratio 1 : k internally, then the coordinates of the point P are P[(1x₂ + kx₁)/(1 + k)], [(1y₂ + ky₁)/(1 + k)].
How to determine the coordinates of point P?In this scenario, we would use line ratio to determine the coordinates of the point P on the directed line segment that partitions the segment into a ratio of 1 to k.
In Mathematics, line ratio can be used to determine the coordinates of the point P and this is modeled by this mathematical expression:
P(x, y) = [(mx₂ + nx₁)/(m + n)], [(my₂ + ny₁)/(m + n)]
Substituting the given parameters into the line ratio formula, we have the following;
P(x, y) = [(1x₂ + kx₁)/(1 + k)], [(1y₂ + ky₁)/(1 + k)]
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At a carnival game, it cost Sadie $17 to toss 34 rings. Fill out a table of equivalent ratios and plot the points on the coordinate axes provided.
The equivalent ratios for the given cost to toss the ring are found as:
$1 ---> 2 toss20 toss ---> $10Define the term equivalent ratios?When we compare two ratios, they are said to be equivalent. To determine whether two or even more ratios are equivalent, they can be compared to one another. For instance, the ratios 1:2 as well as 2:4 are equivalent.For the stated question:
The cost to toss 34 rings = $17.
Part a: ___ to $1.
$17 ---> 34 toss
$1 ---> 34/17 toss
$1 ---> 2 toss
Part b:
34 toss ---> $17
20 toss ---> $17*20 / 34
20 toss ---> $10
Thus, the equivalent ratios for the given cost to toss the ring are found as:
2 toss ---> $1
20 toss ---> $10
Thus, the graph is plotted for the points on the coordinate axes.
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The complete question is attached:
The function f(x)=x√ is horizontally stretched by a factor of 2 to form function g(x). What is the equation of g(x)? Enter your answer in the box. g(x) =
The equation of g(x) is g(x) = 2*x^(1/2)
Explanation:
The original function f(x) is defined as f(x) = x^(1/2) which is the square root of x. When the function is stretched horizontally by a factor of 2, the x term becomes 2x. So the new function g(x) is defined as g(x) = 2*x^(1/2)
please anyone answer quick!!, this is a question from ixl.
Answer:
each bar costs $3.
Step-by-step explanation:
The inequality that describes the problem is:
3x > 18
This inequality states that the total cost of the soap bars, represented by 3x, is greater than Colleen's budget of $18. The variable x represents the number of bars of soap Colleen bought. So, if x represents the number of bars of soap Colleen bought, 3x represents the total cost of those bars, since each bar costs $3.
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If the sum of three consecutive even integers is 30, what is the first of the three even integers? (Hint: If x and x + 2
represent the first two consecutive even integers, then how would the third consecutive even integer be represented?)
The first of the three even integers is
Help
Answer:
8
Step-by-step explanation:
Let's call the first of the three consecutive even integers x.
Since the integers are consecutive and even, we know that the next integer will be x+2, and the next one will be x+4.
We can use this information to set up an equation:
x + (x+2) + (x+4) = 30
Simplifying this equation, we get:
3x + 6 = 30
Subtracting 6 from both sides:
3x = 24
Dividing by 3:
x = 8
So the first of the three consecutive even integers is 8
Solve the system of equations using elimination 5x+4y=−4 and 4x+4y=4
By using elimination method, the solution of the system of equations are x = - 8, y = 9.
What is an expression?Mathematical expression is defined as the collection of the numbers variables and functions by using operations like addition, subtraction, multiplication, and division.
We have to given that;
The system of equations are,
⇒ 5x + 4y = - 4
⇒ 4x + 4y = 4
Now, We can solve by using elimination method as;
The system of equations are,
⇒ 5x + 4y = - 4 .. (i)
⇒ 4x + 4y = 4
⇒ x + y = 1 .. (ii)
Multiply by 5 in (ii) and subtract from (i);
⇒ 5x + 4y - 5x - 5y = - 4 - 5
⇒ - y = - 9
⇒ y = 9
And, From (ii);
⇒ x + y = 1
⇒ x + 9 = 1
⇒ x = 1 - 9
⇒ x = - 8
Thus, The solution of the system of equations are x = - 8, y = 9.
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The population of a city is modeled by the equation P(t)=244,115e0.1t
where t
is measured in years. If the city continues to grow at this rate, how many years will it take for the population to reach one million?
The number of years it will take the population of the city to reach 1million is 14.1 years
What is exponential function?Exponential function, in mathematics, a relation of the form y = ax, with the independent variable x ranging over the entire real number line as the exponent of a positive number a.
1000000 = 10⁶
10⁶ = P(t)
10⁶ = 244115e0.1t
10⁶/244115 = 0.1t
e0.1t = 4.096
ln0.1t = ln 4.096
0.1t = 1.41
t = 1.41/0.1
t = 14.1 years
therefore the years it will take the city to be populated with 1million is 14.1 years
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The cam's mandible history is 100 page loose leaf history randomly mixed and its objective is to rearrange the pages on the right order. How many possibilities of combinations are there? And what's the probability of getting the story in the right order?
The possibilities of the combinations that are there for rearranging the pages in the right order are 100 !.
The probability of getting the story in the right order is 1 / 100 !.
How to find the combination ?There are 100 pages in the history text which means that when they are randomly mixed, each page could take a different position out of the 100 and so lead to a new combination.
The possibilities of combinations is therefore:
= n !
= 100 !
The probability that the story is in the right order will happen with only a single combination which means the probability is:
= Number of correct orders / Number of combinations
= 1 / 100 !
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Determine the factor
Answer:
it's 3gc brought video gloves
Many students choose to take courses in statistics and computer science as elective. Suppose that in a certain university 41% take computer science, 48% take statistics, and 63% take at least one of these two courses. What is the probability a randomly selected student takes both a computer science and a statistics courses as elective? Round your answer to two decimal places.
The probability that a randomly selected student takes both computer science and statistics courses is 26%.
Let's call the event that a student takes a computer science course "C" and the event that a student takes a statistics course "S". We want to find the probability that a student takes both C and S, which can be written as P(C ∩ S).
The probability that a student takes at least one of these two courses can be written as P(C ∪ S), which is equal to 63%. This means that 63% of the students take either computer science or statistics, or both.
To find the probability that a student takes both courses, we can use the formula for the intersection of two events:
P(C ∩ S) = P(C | S) × P(S)
where P(C | S) is the probability that a student takes a computer science course given that they also take a statistics course. To find this value, we can use the formula:
P(C | S) = P(C ∩ S) ÷ P(S)
Substituting this into the first equation, we get:
P(C ∩ S) = P(C ∩ S) ÷ P(S) × P(S)
P(C ∩ S) = P(C ∩ S) × P(S)
We know that P(S) = 48% and we can use the formula for the union of two events to find P(C ∪ S):
P(C ∪ S) = P(C) + P(S) - P(C ∩ S)
Substituting in the values we know:
63% = 41% + 48% - P(C ∩ S)
P(C ∩ S) = 41% + 48% - 63% = 26%
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What are the coordinates of point P?
(4 5,-2)
(-2,-4.5)
(2,-4,5)
(4.5,-2)
Answer:
coordinates r the: (-2, -4.50)
Step-by-step explanation:
option b is the ans
The pie chart gives the recipe for a premium blend trail mix. What part of the premium blend is composed of raisins?
Answer:
1/7
Step-by-step explanation:
All parts are equal to one therefore raisons are just 1 out of 7 other slices on the pie chart
To determine what part of the premium trail mix is composed of raisins, refer to the given pie chart. The portion represented by 'raisins' indicates the amount of raisins in the mix. Raisins slice is 1/7, so 14.28% of premium blend is composed of raisins.
Explanation:To find out what part of the premium blend trail mix is composed of raisins, you need to look at the pie chart. The pie chart should be separated into multiple sections, with each section representing a different ingredient in the trail mix. The section labeled as raisins would represent the part of the premium blend that is composed of raisins.
For example, if the 'raisins' slice is 1/4, 25%, or 90 degrees of the pie chart, this means that 1/4, 25%, or a proportional quantity of the trail mix is composed of raisins. This is because a pie chart is a circle, and a full circle is 100% or 360 degrees - so 1/4, 25%, or 90 degrees all represent the same quantity in this context.
Remember to always check the labels and any information provided in the pie chart. It provides a visual representation of data and can help you understand the proportions of different components in a mixture.
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HELP please i have 6 m more to do in 35ish minutes
Triangle AHIJ is theree-sided polygon where the measure of angle JHI is (3x + 28) degrees.
find the perimeter of this using Pythagorean theroem
If sample variance were to be computed by dividing SS by n, then the average value of the sample variances from all the possible random samples would consistently _____ the population variance.
a. equal
b. Impossible to determine
c. overestimate
d. underestimate
If sample variance were to be computed by dividing SS by n, then the average value of the sample variances from all the possible random samples would consistently underestimate the population variance.
The sample variance is an estimate of the population variance, and it is calculated by dividing the sum of squared deviations (SS) by the sample size minus one (n - 1).
The reason for dividing by n-1 instead of n is due to the fact that the sample variance is an estimate of the population variance and not the exact value. When computing the sample variance, we use the sample data to make an estimate of the population variance. By dividing by n-1 instead of n, we adjust for the fact that the sample is a subset of the population and introduce a small amount of bias into the estimate to correct for this lack of representation.
This correction is known as the Bessel's correction and it makes the sample variance a more accurate estimate of the population variance by adjusting for the variability inherent in sampling. As a result, when sample variance is computed using the Bessel's correction (dividing by n-1), the average value of the sample variances from all possible random samples will consistently underestimate the population variance.
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Seven more than the quotient of a number and 3 is 9.
need equTION FOR THAT
Answer:
7 + [x/(3x9)]
Step-by-step explanation:
How many days did Warren work last month?
Find basis of the kernel and basis of the image of A
The kernel of A is {(0,0,1,0)^T} and the basis is {(1,0,2,4)^T, (0,1,0,-3)^T}.
How to determine the basis of the kernel and basis of the image of AThe kernel of a matrix A is the set of all vectors x such that Ax = 0, where 0 is the zero vector.
To find a basis for the kernel of A, we can row reduce the augmented matrix [A | 0] to reduced row echelon form using Gaussian elimination.
The row reduced echelon form of the matrix A is
1 0 2 4
0 1 0 -3
0 0 0 0
0 0 0 0
Write out the elements in the second column
0 1 0 0
Reverse the elements
0 0 1 0
So, the basis for the kernel of A is {(0,0,1,0)^T}.
The image of a matrix A is the set of all linear combinations of the columns of A.
So, the basis for the image of A is {(1,0,2,4)^T, (0,1,0,-3)^T}.
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5k < 39
It says
I can determine if k=8 is part of the solution set
Answer:
k=8 is not part of the solution set
Step-by-step explanation:
5(8) < 39
40 < 39
If you plug in 8 for K it makes the inequality incorrect. 40 is not less than 39.
What 3-digit number am I if the digit in my tens place is five more than the digit in my ones place and the digit in my tens place is twice the digit in my hundreds place?
Evaluate expressions of the graph:
Answer:
1) - 3; 2) 3; 3) - 1; 4) 5; 5) 6---------------------
Evaluate expressions using respective points on graphs :
1) (f · g)(2) = f(g(2)) = f(0) = - 32) (g · f)(2) = g(f(2)) = g(5) = 33) (g · g)(5) = g(g(5)) = g(3) = - 14) (f · f)(5) = f(f(5)) = f(2) = 55) (f · g · f)(4) = f(g(f(4))) = f(g(5)) = f(3) = 6Please help me with this question.
prove if 1-norm less than 2 norm less then infinty norm the there is no c such that inginity norm is less than c 1 norm
There does not exist a constant C > 0 such that p∞(v) ≤ Cp1(v) for all vectors v in V. Therefore, p1-norm < p2-norm < p∞-norm implies there is no c such that p∞-norm < c p1-norm.
Given two norms, p and q, on a vector space V, we say that p is less than q, written p ≤ q, if there exists a constant C > 0 such that for all vectors v in V,
p(v) ≤ Cq(v)
Now, let's consider the three norms:
The 1-norm: p1(v) = ∑|v_i|
The 2-norm: p2(v) = √(∑v_i^2)
The infinity-norm: p∞(v) = max{|v_i|}
We are given that p1(v) ≤ p2(v) for all vectors v in V and that p2(v) ≤ p∞(v) for all vectors v in V. We want to show that there does not exist a constant C > 0 such that p∞(v) ≤ Cp1(v) for all vectors v in V.
Suppose for the sake of contradiction that such a constant C does exist. Then, for any non-zero vector v in V,
p∞(v) ≤ Cp1(v)
max{|v_i|} ≤ C ∑|v_i|
Since v is non-zero, there exists an index i such that |v_i| > 0. We can divide both sides of the inequality by |v_i| to get:
1 ≤ C ∑|v_j| / |v_i|
Now, since p1(v) ≤ p2(v) for all vectors v in V, we have:
p1(v) = ∑|v_j| ≤ √(∑v_j^2) = p2(v)
So, we can substitute this into the inequality above to get:
1 ≤ C √(∑v_j^2) / |v_i| = Cp2(v) / |v_i|
Finally, since p2(v) ≤ p∞(v) for all vectors v in V, we have:
p2(v) / |v_i| ≤ p∞(v) / |v_i| = 1
So, we have reached a contradiction:
1 ≤ Cp2(v) / |v_i| ≤ C
This contradicts the assumption that C > 0, so there does not exist a constant C > 0 such that p∞(v) ≤ Cp1(v) for all vectors v in V. Therefore, p1-norm < p2-norm < p∞-norm implies there is no c such that p∞-norm < c p1-norm.
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Could somebody please help me on this question?
Answer:
A
Step-by-step explanation:
Systems of Equations:In a systems of equations we have to set up two equations which relate to each other and in this case we're setting up two linear equations, so let's take a look at the question.
Let's first make an equation from: "A monster pizza, m, has 7 fewer slices than twice the number on a large pizza, l" That means if we subtracted twice the large pizza from monster pizza, we would get 7 slices. [tex]2l-m=7[/tex] and if we multiply by -1 on both sides: [tex]m-2l=-7[/tex]
Now let's use the second piece of information given: "the difference between the number of slices on a monster pizza and the number of slices on a large pizza is 4 slices" this means if we take away 4 slices from the monster pizza we get the same amount of slices on a large pizza: [tex]m-4=l[/tex] and rearranging we get: [tex]m-l=4[/tex] making A the correct option
The function k(x) shown in the table below is a linear function.
Find its slope, y-intercept, and formula in slope-intercept form.
I added the graph to help out and I wanted to say slope is 3 y intercept is 0,5 and the formula would be k(x)=3x-5
Answer:
Y- intercept is (0,-5), not (0,5), but everything is right! Nice job
Step-by-step explanation:
Finding slope and Y-intercept
Slope being (y2-y1)/(x2-x1) of any two points
I'll do (6,7) and (9,13), so
(13-7)/(9-6) = 6/3 = 2.
Slope = 3
For Y-Intercept
That's where X = 0. On this graph, X = 0, where Y= -5, making the Y-intercept -5
Slope intercept form is y = mx + b
Plugging everything together, we get K(X) = 3x - 5