The vector v can be written as the sum of a vector in Span{u} and a vector orthogonal to u as follows: v = (1/5)u + (-4/5)[1 -3].
The main answer can be obtained by decomposing the vector v into two components: one component lies in the span of vector u, and the other component is orthogonal to u. To find the vector in the span of u, we scale the vector u by the scalar (1/5) since v = - [3 1] can be written as (-1/5)[2 1]. This scaled vector lies in the span of u and can be denoted as (1/5)u.
To find the vector orthogonal to u, we subtract the vector in the span of u from v. This can be calculated by multiplying the vector u by the scalar (-4/5) and subtracting the result from v. The orthogonal component is obtained as (-4/5)[1 -3].
Thus, we have successfully decomposed vector v as v = (1/5)u + (-4/5)[1 -3], where (1/5)u lies in the span of u and (-4/5)[1 -3] is orthogonal to u.
In linear algebra, vector decomposition is a fundamental concept that allows us to express a given vector as a sum of vectors that have specific properties. The decomposition involves finding a vector in the span of a given vector and another vector that is orthogonal to it. This process enables us to analyze the behavior and properties of vectors more effectively.
In the context of this problem, the vector v is decomposed into two components. The first component, (1/5)u, lies in the span of the vector u. The span of a vector u is the set of all vectors that can be obtained by scaling u by any scalar value. Therefore, (1/5)u represents the part of v that can be expressed as a linear combination of u.
The second component, (-4/5)[1 -3], is orthogonal to u. Two vectors are orthogonal if their dot product is zero. In this case, we subtract the vector in the span of u from v to obtain the orthogonal component. By choosing the scalar (-4/5), we ensure that the resulting vector is orthogonal to u.
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I desperately need help.
Madison and Lucas went to the fair. Madison rode 8 rides and spent $20. Lucas rode 5 rides and spent $17. Write a linear equation, in slope-intercept form, that models the cost y of one person going on x rides. You can write the equation in any form.
1. Write an ordered pair representing Madison's data. Remember: ordered pairs look like (2,6)
2. Write an ordered pair representing Lucas's data. Remember: ordered pairs look like (2,6)
3. Calculate the slope
4. Write the Equation of the line
Answer:
first solve for x
8x=20
x=2.5
5x=17
x=3.4
then your equations
Madison: y=2.5x
Lucas: y=3.4x
then your ordered pairs
Madison: (4,10)
Lucas:(3,10.2)
then your slope
Madison-2.5
Lucas-3.4
I hope this is good enough:
Can you combine x3 and x2? Why or why not? Explain completely
Answer:
you can add 3x and 2x
Step-by-step explanation:
you can add them because they are both like terms
Answer:
yes
Step-by-step explanation:
you can combine them because they have the same base, and you can combine like terms
awner this asap pls my cousins homework more coming up
what effect does eliminating the lowest value -6 from the data set have on the mean and median
By eliminating values from the given the given set , it will reduce the mean and median value. Mean = 23.5 and Median = 5
According to the question, the given set of values for the calculation of mean and median is as follows:
Values: = (-6, 3, 3, 3, 3, 5, 6, 6, 8, 10)
After eliminating -6 from the given set of values:
Values: = (3, 3, 3, 3, 5, 6, 6, 8, 10)
Now the median is the middle tern from the given set of the values:
Median = 5
And mean is : 3 + 3 + 3 + 3 + 5 + 6 + 6 + 8 + 10 / 2 = 47/2 = 23.5
Hence, the correct answer is median = 5 and mean = 23.5
What is mean and median?
The mean is the average value of the given set of the data. It is the addition of all the values and later divide it by two. Similarly, median is the middle value from the set of values provided it should be arranges in the order ascending to descending.
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A website is selling plastic rings for $0.63. The site got the plastic rings at a cost of $0.25. What percentage is the mark-up?
The percentage that is the mark-up is 152%
What percentage markup did the website make?From the question, we have the following parameters that can be used in our computation:
Initial value = $0.25
Final value = $0.63
The percentage mark up is then calculated as
Percentage mark up = (Final value - Initial value)/Initial value * 100%
Substitute the known values in the above equation, so, we have the following representation
Percentage mark up = (0.63 - 0.25)/0.25 * 100%
Evaluate
Percentage mark up = 152%
Hence, the percentage mark up is 152%
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can someone please help me with this??? im trying to correct test answers
n = ?
Which of the following points would be on the graph of the equation y=-3x + 1?
A. (-4, -10)
B.(-4, 22)
C. (1, -10)
D. (1, - 2)
Answer:
D.(1,-2)
Step-by-step explanation:
y= -3x+1
when x=1
y= -3*1 +1
y=-3+1
so
y=-2
Below given are the details of transaction of a bank account of three brother Ram, Rahul and Rohit having AED 1000 in each account. a. Ram – Credits AED 500 on 12th May 2020 b. Rahul – Debits AED 700 on 12th May 2020 and Credits AED 500 on 15th May 2020. c. Rohit – Credits AED 700 on 12th May 2002 and Debits AED 500 on 15th May 2020. Who has more amount in his account at the end of the month Arrange the amounts in ascend
Answer:
Ram therefore has more amount in his account at the end of the month, and the balances in their bank accounts at the end of the month are arranged in ascending order, i.e. from the smallest to the largest, as follows:
Rahul – Debits AED 200; Rohit – Credits AED 200; and Ram – Credits AED 500.
Step-by-step explanation:
In banking and finance, a credit transaction on a bank account indicates that an additional amount of money has been added to the bank account and the balance has increased. This gives a positive balance in the account
On the other hand, a debit transaction on a bank account indicates that an amount of money has been deducted or withdrawn from the bank account and the balance has therefore reduced. This gives a negative balance in the account.
Based on the above, we have:
a. Ram – Credits AED 500 on 12th May 2020
Since there is no any other credit or debit transaction during the month, this implies that Ram still has Credits AED 500 in his account at the end of the month.
The Credits AED 500 indicates that Ram has a positive balance of AED 500 in his account at the end of the month.
b. Rahul – Debits AED 700 on 12th May 2020 and Credits AED 500 on 15th May 2020.
The balance in the account of Rahul gives Debits of AED 200 as follows:
Debits AED 700 - Credits AED 500 = Debits AED 200
The Debits AED 200 indicates that Rahul has a negative balance of AED 200 in his account at the end of the month.
c. Rohit – Credits AED 700 on 12th May 2002 and Debits AED 500 on 15th May 2020.
The balance in the account of Rohit gives Credits of AED 200 as follows:
Credits AED 700 - Dedits AED 500 = Credits AED 200
The Credits AED 200 indicates that Rohit has a positive balance of AED 200 in his account at the end of the month.
Conclusion
Arrangement of numbers or amounts of money in ascending order implies that they are arranged from the smallest to the largest number or amount.
Since Credits implies positive amount and Debits implies negative amount, Ram therefore has more amount in his account at the end of the month, and the balances in their bank accounts at the end of the month are arranged in ascending order, i.e. from the smallest to the largest, as follows:
Rahul – Debits AED 200; Rohit – Credits AED 200; and Ram – Credits AED 500.
Which statement accurately explains whether a reflection over the x-axis and a 180° rotation would map figure ACB onto itself? (1 point)
Using transformation rules, the correct option is discovered to be A'C'B', which is located at A(-1,1), C'(-3,4), and B'(-3,4) (-5,1).
What is transformation rule?Graph transformation is the process of modifying an existing graph or graphed equation to produce a variation of the following graph. The modification of algebraic equations is a common type of problem in algebra.The transformation rule for an x-axis reflection is (x,y) -> (x,-y)
The transformation rule for a 180° rotation is (x,y) -> (-x,-y)
Following the x-axis reflection: (x,y) -> (x,-y)
Using the reflection as a guide, rotate:. (x,-y) -> (-x, -(-y)) = (-x , y).
That is, (x,y) -> (x,y) it is not the same rule, so it will not map figure onto itself.
A(1,1), for example, would be mapped to A(-1,1), so the correct answer is:
No, A'C'B' is at A(-1,1), C'(-3,4), and B' (-5,1).
The figure in the question is attached below:
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sketch the graph of the inequality
y-3x>-2
To graph y-3x>-2, find the boundary line. (y > -2 + 3x is your answer)
1. Find the equation of the boundary line.
y-3x>-2 is the equation.2. Choose a point (x, y) on the shaded side on the line.
3. Plug x and y, in the boundary to identity the inequality sign.
set the primes p and q as follows: p = 31 and q = 47. what are the values for n and ?
To calculate n, multiply p and q, and to calculate φ, multiply (p-1) and (q-1).
How to calculate n and φ?To find the values for "n" and "?" (which is likely meant to be the Euler's totient function, denoted as φ), given the primes p = 31 and q = 47, we can use the following formulas:
Calculate n:
n = p * q
n = 31 * 47
n = 1457
Calculate φ (Euler's totient function):
φ = (p - 1) * (q - 1)
φ = (31 - 1) * (47 - 1)
φ = 30 * 46
φ = 1380
Therefore, the values for n and φ are:
n = 1457
φ = 1380
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5(x+2) = 20
15 points
Answer:
Step-by-step explanation:
remove the parenthesis
5x+10=20
5x+10-10=20-10
5x=10
x=2
find the derivative of f(x)=Inx²
If you mean f(x) = ln(x²), then by the chain and power rules we have
\(f'(x) = \dfrac{(x^2)'}{x^2} = \dfrac{2x}{x^2} = \dfrac2x\)
If you mean f(x) = ln(x)², then the same rules give
\(f'(x) = 2 \ln(x) \left(\ln(x)\right)' = 2\ln(x) \times \dfrac1x = \dfrac{2\ln(x)}x\)
Write 3√2 as the square root of a single integer
Therefore the answer is √18
What is the x-intercept of the following equation?
3x - 6y = 24
(8, 0)
(-4, 0)
(0, -4)
(0, 8)
if a and b are independent events with p(a) = 0.65 and p(a ∩ b) = 0.26, then, p(b) =
The chance of the event B is 0.4 when using the probability for the two independent two event formula.
In the given question, if a and b are independent events with p(a) = 0.65 and p(a ∩ b) = 0.26, then we have to find the value of p(b).
Events classified as independent do not depend on other events for their occurrence.
Event A's likelihood of happening is P(A)=0.65.
The likelihood of the two events A and B intersecting is P(A∩B)=0.26.
Given that the likelihood of the two independent events is:
P(A∩B) = P(A)⋅P(B)
Then the probability of the event B will be,
P(B) = P(A)/P(A∩B)
P(B) = 0.65/0.26
P(B) =0.4
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The first step in solving using the substitution method is.
The first step in solving using the substitution method is making an unknown value the subject of the formula.
What is the substitution method?
The substitution method is one of the methods that is used to solve simultaneous equations. It involves making one unknown value the subject of the formula.
For example, given these simultaneous equations:
a + b = 10
2a + 5b = 20
The first step is to make either a or b the subject of the formula
a = 10 - b
or
b = 10 - a
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four examples of bias
Answer:
the 4 main types of bias in research – sampling bias, nonresponse bias, response bias, and question order bias – that are most likely to find their way into your surveys and tamper with your research results
Step-by-step explanation:
.-.
Charlie, Beth, and Miguel all babysit kids in their neighborhood. The table shows the number of hours and amount each of them earn last night. If each person babysits for five hours next weekend, which person will earn the most money? Use a coordinate plane if needed to solve.
Answer:
Step-by-step explanation: well first their is int a chart but bye reading the question i think is is Beth.
i hope this helped.
least common multiple for (x+3)^2(x-2) and (x+3)(x^2-16)
\( {(x + 3)}^{2}(x - 2)(x + 4)(x - 4)\)
Step-by-step explanation:
\( {(x + 3)}^{2} (x - 2) \: \: \: (x + 3)( {x}^{2} - 16)\)
The first one can be kept in that form while the second can be factored as
\((x + 3)(x + 4)(x - 4)\)
so we can see that the LCM is
\( {(x + 3)}^{2}(x - 2)(x + 4)(x - 4)\)
Can i get some help im really confused and im in the test
Answer:
b y= 3x+6 is the ans but not sure
its f(-3)=6x+3. can someone pls help me solve this.
Answer:17
Step-by-step explanation:
A circular cookie cake costs $15.70. If the diameter of the cookie cake is 10 inches, what is the approximate cost per square inch of the cookie cake? Use π = 3.14.
$0.05
$0.20
$0.50
$0.64
The cost per square inch of a circular cookie cake with a diameter of 10 inches and a cost of $15.70 is approximately $0.20, calculated by dividing the total cost by the area of the cake.
Area of Circle can be calculated using the following formula:
A = \(\pi r^2\)
where radius of the circle is r.
In this case, the diameter of the cookie cake is 10 inches, so the radius is 5 inches.
A = \(\pi r^2 = 3.14 \cdot 5^2\) = 78.5 square inches
To find the cost per square inch, we divide the total cost of the cookie cake by its area:
Per square inch cost is Total cost / Area
Per square inch cost = $15.70 / 78.5 square inches
Per square inch cost ≈ $0.20
Hence, the cookie cake will roughly cost $0.20 per square inch.
The formula for the area of a circle, A = \(\pi r^2\), is used to calculate the area of the cookie cake in square inches, where r is the radius of the circle. In this case, since the diameter of the cookie cake is given as 10 inches, we know that the radius is 5 inches.
Once we know the area of the cookie cake, we can calculate the cost per square inch by dividing the total cost by the area. This gives us an idea of how much we are paying for each unit of area, or each bite of the cookie cake.
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Answer:
The cost per square inch of a circular cookie cake with a diameter of 10 inches and a cost of $15.70 is approximately $0.20, calculated by dividing the total cost by the area of the cake.
Step-by-step explanation:
is the mean of 2 3 4 6 x and 8 is 5 find the value of x
Step-by-step explanation:
The mean is the total sum of the numbers all over the amount of numbers in the question.
Mean=(2+3+4+6+x+8)÷6
NB: 6 is the number of figures available in the question
If Mean =5
5=(23+x)÷6
Multiply both side by 6
5 x 6 = 23 + x
30 = 23 + x
30 - 23 = x
7 = x
Answer:
7
Step-by-step explanation:
We can start by counting the number of values we have, which would be 6 if we count the x. Now multiply 5 by 6 and we get 30. Now we know that 2+3+4+6+x+8 is 30 and so we can subtract all the values, giving us x=7. If we substitute it back in, we get 2+8 which is 10, 4+6 which is also 10, and 7+3 which is 10 again. 10+10+10=30 and now divide 30 by 6 and we get 5; the mean. Hope this helps!
Please help I’m clueless,, I need this turned in by tomorrow
Answer:
14) 2p^2+3p+4
16) 5w^3+5w^2+5w+5
18) 3k^3-6k^2+4k-3
20) -4a^2-3ab
I hop this is right! I learned this in like 9th grade and im about to be a freshman in college!!!
Step-by-step explanation:
you combine like terms while still following the negative and positive in front of them. If there is no like term then you just bring it straight down but the order is by highest exponent.
To visit her grandmother, Jessica takes a horse 3.31 3.313, point, 31 kilometers and a motorcycle 1 11 kilometer.
Answer: Jessica's journey in total is 4.31 km
Step-by-step explanation:
Consider this system of equations.
p=2n
p-5 = 1. 5n
What value of n makes the system of equations true?
Enter your answer in the box.
Therefore, the value of n that makes the system of equations true is n = 10.
Given:
p = 2n
p - 5 = 1.5n
Substituting the value of p from the first equation into the second equation, we have:
2n - 5 = 1.5n
Next, we can solve for n by subtracting 1.5n from both sides of the equation:
2n - 1.5n - 5 = 0.5n - 5
Simplifying further:
0.5n - 5 = 0
Adding 5 to both sides of the equation:
0.5n = 5
Dividing both sides by 0.5:
n = 10
Therefore, the value of n that makes the system of equations true is n = 10.
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A 3-gallon container of window cleaner costs $30.72. What is the price per quart?
Answer: The answer to your question is: 1 quart = $2.56
Step-by-step explanation: data
3-gallon cost = $30.72
cost of 1 quart = 2.56
Rule of three
1 gallon --------------- 4 quarts
3 gallons --------------- x
x = 12 quarts
12 quarts --------------- $30.72
1 quart ---------------- x
x = 1x 30.72 / 12 = $ 2.56
Mr. Andrews is trying to lose weight. He starts the year weighing 254 pounds. If he plans to burn enough calories to lose 4 pounds per week, then how many weeks will pass before Mr. Andrews weighs 228 pounds?
Answer:
9 weeks before he weights 228
Complete the explanation of how you can use equations with variables on both sides to solve real-world problems. (PLEASE HELP I GOT SCAMMED SEVERAL TIMES D:)
You can (blank) the costs of service that charge hourly or weekly rates.
A. Separate
B. Match
C. Compare
You can "compare" the costs of services that charge hourly or weekly rates using equations with variables on both sides.
Equations with variables on both sides can be used to solve real-world problems, such as comparing the costs of services that charge hourly or weekly rates.
For example, if a car rental company charges a weekly rate of $200 plus $0.25 per mile and another company charges a weekly rate of $150 plus $0.30 per mile, you can use equations with variables on both sides to determine which company offers the better deal based on the number of miles driven.
Let x be the number of miles driven and y be the total cost, then we can write two equations for the two companies:
Company A: y = 0.25x + 200
Company B: y = 0.30x + 150
We can then solve for x by setting the two equations equal to each other:
0.25x + 200 = 0.30x + 150
0.05x = 50
x = 1000
So if the number of miles driven is less than 1000, Company A is the better deal; if it's more than 1000, Company B is the better deal. Equations with variables on both sides can be used in various real-world situations to compare costs, determine rates, and solve other practical problems.
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