The solution to the Loploce equation Δu = 0 in the domain [0,1]^2 with boundary conditions u(0,b) = u(1,y) = 0 and u(x,0) = sin(πx), u(x,1) = 0 can be obtained using the method of separation of variables.
The solution consists of a series of eigenfunctions, each multiplied by corresponding coefficients. To solve the Loploce equation Δu = 0, we assume a separable solution of the form u(x,y) = X(x)Y(y). Plugging this into the equation yields X''(x)Y(y) + X(x)Y''(y) = 0. Dividing by X(x)Y(y) gives X''(x)/X(x) = -Y''(y)/Y(y). Since the left-hand side depends only on x and the right-hand side depends only on y, both sides must be equal to a constant, say -λ.
Therefore, we obtain two ordinary differential equations: X''(x) + λX(x) = 0 and Y''(y) - λY(y) = 0.The solutions to these equations are given by X(x) = Asin(√λx) + Bcos(√λx) and Y(y) = Csinh(√λ(1 - y)) + Dcosh(√λ(1 - y)), where A, B, C, and D are constants to be determined.To satisfy the boundary conditions u(0,b) = u(1,y) = 0, we need X(0)Y(b) = X(1)Y(y) = 0. This implies B = 0 and Ccosh(√λ(1 - y)) = 0, which leads to C = 0.
Thus, we are left with the solutions X(x) = Asin(√λx) and Y(y) = Dcosh(√λ(1 - y)). To determine the values of A and D, we consider the remaining boundary conditions u(x,0) = sin(πx) and u(x,1) = 0. Plugging in these values and using the orthogonality properties of sine and cosine functions, we can compute the coefficients A and D using Fourier series techniques.
Learn more about eigenfunctions click here: brainly.com/question/2289152
#SPJ11
Marianne and Roger are in good health and have reasonably secure careers. Each earns $45,000 annually. They own a home with a $125,000 mortgage; they owe $25,000 for their car loans and have $22,000 in student loans. If one should die, they think that funeral expenses would be $12,000. What is their total insurance need using the DINK method? O $86,000 O $12,000 O $217,000 O $98,000 O $172,000
Using the DINK method (Dual Income, No Kids), the total insurance need for Marianne and Roger is $172,000.
The DINK method calculates the insurance need based on the financial obligations and potential future expenses of a couple with dual incomes and no children. To determine their total insurance need, we consider their outstanding debts and potential expenses in case of death.
The calculations are as follows:
Mortgage: $125,000 (outstanding debt)
Car loans: $25,000 (outstanding debt)
Student loans: $22,000 (outstanding debt)
Funeral expenses: $12,000
The total outstanding debt and funeral expenses amount to $184,000.
However, the DINK method suggests subtracting the couple's annual incomes from the total insurance need since they have secure careers and can continue to generate income even in the event of the death of one spouse.
Both Marianne and Roger earn $45,000 annually, so we subtract $45,000 from the total, resulting in a total insurance need of $139,000.
Therefore, the correct answer is $172,000.
To learn more about DINK method visit:
brainly.com/question/30035840
#SPJ11
Consider the function f(3) = 1/cose. Estimate the condition number for the problem of evaluating this function near the point 1.5708. Calculate the input and output relative errors whe
The condition number for the problem of evaluating the function f(x) = 1/cos(x) near the point x = 1.5708 is approximately 10 raised to power 16
This means that a small change in the input x can cause a large change in the output f(x).
The condition number of a function is a measure of how sensitive the function is to changes in its input. The larger the condition number, the more sensitive the function is to changes in its input. The condition number for the function f(x) = 1/cos(x) can be estimated as follows:
K = |f'(x)| / |f(x)|
where f'(x) is the derivative of f(x) and f(x) is the value of f(x) at the point x. At the point x = 1.5708, f'(x) = -1 and f(x) = 0.017453292519943295. Therefore, the condition number is approximately:
K = |-1| / |0.017453292519943295| = 10 raised to power 16
This means that a small change in the input x can cause a large change in the output f(x). For example, if the input x is changed by 1e raised to power of -16, the output f(x) will change by approximately 10 raised to power of 16.
This large condition number is due to the fact that the function f(x) = 1/cos(x) is very sensitive to changes in the input x near the point x = 1.5708. This is because the cosine function is very close to zero at this point.
To learn more about relative error click brainly.com/question/30403282
#SPJ11
What is the value of 24/25 divided by 4/5
Answer:
1.2
Hope it helps :)
[tex]\frac{24}{25}*\frac{5}{4}\\\\\\=\frac{6}{5}[/tex]
What is the equation represented by the table above?
A y = 8x
B y = x + 7
C y = 5x + 3
Dy = 3x + 5
Answer:
C: y = 5x + 3
Step-by-step explanation:
Note that if x changes from 1 to 3 (the "run"), y changes from 8 to 14 (the "rise"). Thus the slope of the line represented by the table is m = rise/run = 6/2, or m = 3. Answer choice D is the only one that displays a slope of 3.
Answer:
Answer is D
Step-by-step explanation:
A. 14=8(3), 14≠24
B. 14=3+7 , 14≠10
C. 14=5(3)+3, 14≠18
D.14=3(3)+5, 14=9+5 14=14
The following recipe is for 16 crepes: • 1/4 cup margarine, 3 tbs sugar, 1/2 cup orange juice, • 1 tbs grated orange rind, and 1/2 cup toasted almonds. You need to serve 5 crepes per person for 8 guests. How much of each ingredient is needed?
You need 5/2 times the amounts given in the recipe, so you need:
5/8 cup margarine 15/2 tbs sugar 5/4 cup orange juice 5/2 tbs grated orange rind5/4 cup toasted almonds.How much of each ingredient is needed?Here we have the recipe for 16 crepes:
1/4 cup margarine 3 tbs sugar1/2 cup orange juice 1 tbs grated orange rind1/2 cup toasted almonds.You want to make 5 crepes for person, for 8 persons, so you need:
8*5 = 40 crepes.
So you need to make the recipe N times:
16*N = 40
N = 40/16 = 10/4 = 5/2
So you need a fraction of 5/2 times each of the amounts in the recipes.
You will need:
(5/2)*1/4 = 5/8 cup margarine (5/2)*3 = 15/2 tbs sugar(5/2)*1/2 = 5/4 cup orange juice 5/2 tbs grated orange rind(5/2)*1/2 = 5/4 cup toasted almonds.Learn more about fractions at:
https://brainly.com/question/11562149
#SPJ4
Marcus goes to the park, which is 4 miles away. He walks 512 of the way and then jogs the rest of the way.
How many miles does he walk? Use the number line to help you.
Answer:
516 miles
Step-by-step explanation:
Determine if each of the following better describes a decision alternative or a state of nature for a manufacturing company.
a) Government regulations Select an answer decision alternative state of nature
b) Hiring options Select an answer decision alternative state of nature
c) Management bonuses Select an answer decision alternative state of nature
d) New plant location Select an answer decision alternative state of nature
e) Win or lose a court case Select an answer decision alternative state of nature
f) Challenge or settle a lawsuit Select an answer decision alternative state of nature
g) Demand level at 50, 60, 70+ Select an answer decision alternative state of nature
h) Supply level at 50, 60, 70+ Select an answer decision alternative state of nature
i) Advertising budget level Select an answer decision alternative state of nature
j) Type of gasoline to use Select an answer decision alternative state of nature
k) Suppliers to purchase from Select an answer decision alternative state of nature
l) Frequency of machine breakdown Select an answer decision alternative state of nature
The statement A, E, G , H and L describes state of nature whereas, statement B, C, D, F, I, J and K describes decision alternative.
A. Government regulations: State of nature - Government regulations are external factors that affect the operations of manufacturing companies. These are not decisions that companies make on their own.
B. Hiring options: Decision alternative - It involves decisions made by the manufacturing company regarding the selection and recruitment of potential candidates.
C. Management bonuses: Decision alternative - Decisions is made by the manufacturing company regarding the allocation of bonuses to its management team.
D. New plant location: Decision alternative - Decision is taken by the manufacturing company regarding set up of new plant.
E. Win or lose a court case: State of nature - Court outcome in a case is not in the control of the manufacturing company.
F. Challenge or settle a lawsuit: Decision alternative - Choosing whether to challenge or settle a lawsuit this decision is taken by the manufacturing company.
G. Demand level at 50, 60, 70+: State of nature - Demand level is determined by market forces and consumer behavior which are external factors.
H. Supply level at 50, 60, 70+: State of nature - Similar to demand level, the supply level is determined by external factors such as availability of resources etc.
I. Advertising budget level: Decision alternative - Decision is made by the manufacturing company regarding the allocation of financial resources and budget for advertising.
J. Type of gasoline to use: Decision alternative - Decision is made by the manufacturing company regarding the selection of fuel to use.
K. Suppliers to purchase from: Decision alternative - Decisions is made by the manufacturing company regarding the choice of suppliers for purchase of raw materials, components, or other goods.
L. Frequency of machine breakdown: State of nature - Occurrence of unplanned breakdowns or malfunctions of machinery is beyond the control of the manufacturing company.
To learn about State of Nature:
https://brainly.com/question/26966645
#SPJ4
SOMEONE PLEASE HELP ME!
Answer:
A
Step-by-step explanation
A bag contains colored tiles. • 3 tiles are red • 6 tiles are green • 3 tiles are blue A tile will be randomly selected from the bag. What is the probability in decimal form that the tile selected will be green? A bag contains colored tiles. • 3 tiles are red • 6 tiles are green • 3 tiles are blue A tile will be randomly selected from the bag. What is the probability in decimal form that the tile selected will be green?
3. The graph y = x2 - 3 is translated down 6 units. What would be the new function rule? Y=8² - 9 À
Answer:
a= −1/9y+64/9
a general solution of the differential equation x′(t)=ax is given by x(t)=c1x1(t) c2x2(t), where a matrix A = [0 -1; 1 0]?
The general solution of the differential equation x'(t) = Ax(t), where A is the matrix [0 -1; 1 0], is x(t) = [(c₁² - c₂² + 2ic₁c₂)[tex]e^{(it)[/tex] + (2c₁c₂ - c₁² + c₂²)[tex]e^{(it)[/tex]][1, i].
To solve the differential equation x'(t) = Ax(t), where A is the given matrix [0 -1; 1 0], we can use the method of finding the eigenvalues and eigenvectors.
Step 1: Find the eigenvalues λ of the matrix A by solving the characteristic equation |A - λI| = 0.
The characteristic equation for A is:
|0-λ -1| = 0
|1 0-λ|
Expanding the determinant gives:
(-λ)(-λ) - (-1)(1) = 0
λ² + 1 = 0
Solving the equation, we get two eigenvalues: λ₁ = i and λ₂ = -i.
Step 2: Find the eigenvectors corresponding to each eigenvalue.
For λ₁ = i:
(A - λ₁I)u₁ = 0
|0- i -1| |x₁| = |0|
|1 0- i| |x₂| |0|
Simplifying the equation gives:
-ix₁ - x₂ = 0
x₁ - ix₂ = 0
Solving this system of equations, we get the eigenvector u₁ = [1, i].
For λ₂ = -i:
(A - λ₂I)u₂ = 0
|0+i -1| |x₁| = |0|
|1 0+i| |x₂| |0|
Simplifying the equation gives:
ix₁ - x₂ = 0
x₁ + ix₂ = 0
Solving this system of equations, we get the eigenvector u₂ = [1, -i].
Step 3: Write the general solution as x(t) = c₁x₁(t) + c₂x₂(t), where c₁ and c₂ are constants.
The general solution to the differential equation x'(t) = Ax(t) is:
x(t) = c₁[1, i][tex]e^{(i\lambda_1 t)[/tex] + c₂[1, -i][tex]e^{(i\lambda_2 t)[/tex]
= c₁[1, i][tex]e^{(it)[/tex] + c₂[1, -i][tex]e^{(it)[/tex]
Expanding and simplifying the solution:
x₁(t) = c₁[tex]e^{(it)[/tex] + c₂[tex]e^{(it)[/tex]
x₂(t) = ic₁[tex]e^{(it)[/tex] - ic₂[tex]e^{(it)[/tex]
Therefore, the general solution is:
x(t) = c₁[c₁[tex]e^{(it)[/tex] + c₂[tex]e^{(it)[/tex]][1, i] + c₂[ic₁[tex]e^{(it)[/tex] - ic₂[tex]e^{(it)[/tex]][1, -i]
= (c₁c₁[tex]e^{(it)[/tex] + c₁c₂[tex]e^{(it)[/tex] + ic₁c₁[tex]e^{(it)[/tex] - ic₁c₂[tex]e^{(it)[/tex])[1, i] + (ic₁c₁[tex]e^{(it)[/tex] - ic₁c₂[tex]e^{(it)[/tex] - c₂c₁[tex]e^{(it)[/tex] - c₂c₂[tex]e^{(it)[/tex])[1, -i]
= [(c₁² - c₂² + 2ic₁c₂)[tex]e^{(it)[/tex] + (2c₁c₂ - c₁² + c₂²)[tex]e^{(it)[/tex]][1, i]
Learn more about differential equations at
https://brainly.com/question/25731911
#SPJ4
The question is -
What's the general solution (c1x1(t) +c2x2(t)) of a differential equation x'(t) = Ax(t) with a matrix A = [0 -1; 1 0]?
An object with mass m = 1 kg is attached to a spring with spring constant k and a dashpot with c = 12 . The mass is set in motion with initial position Xo = 1 meter and v, = -2 meters/second. m/s 1a. (5 points) The spring is stretched 0.5 meters by a force of 13.5 N. Find the spring constant k (in units of ). (ignore the dashpot in when finding k.) N m 16. (5 points) Is this damped mass-spring system underdamped, overdamped, or critically damped? Explain using c2 - 4mk. 1c. (10 points) solve the initial value problem x" + 12x' +27x = 0, x(0) = 1,*'(0) = -2 to find the position function (t) of the object t seconds after it is released.
The spring constant, k = 27 N/m. The system is critically damped. The position function of the object is x(t) = e-6t(cos √3t + √3/3 sin √3t).
(a) Given, m = 1 kg, c = 12 and the spring is stretched 0.5 meters by a force of 13.5 N. We need to find the spring constant k. Let's consider the force applied on the spring, F = -kx
Here, x = 0.5 m and F = 13.5 N. So, 13.5 = -k (0.5) => k = -27 N/m
Since, we cannot have negative spring constant. Therefore, k = 27 N/m.
(b) The given differential equation is x" + 12x' + 27x = 0.
On comparing with the general equation of a damped mass-spring system, we get m = 1 kg, c = 12, k = 27.
The damping factor is defined as β = c/2m = 6.
Using the damping factor we can determine the type of the system. c2 - 4mk > 0 - overdamped systemc2 - 4mk = 0 - critically damped systemc2 - 4mk < 0 - underdamped system In this case, c2 - 4mk = 12^2 - 4(1)(27) = 0
This indicates that the system is critically damped.
(c) The general equation for a damped mass-spring system is x(t) = e-βt(A cos ωdt + B sin ωdt)
Where, A and B are constants that are determined using initial conditions. x(0) = A = 1 and x'(0) = -βA + ωdB/dt = -2 => B = (1/ω) (-βA + 2)
Now, we need to determine ω.ω2 = k/m - β2/4m2 = 27/1 - (12/2)2/4(1)(27) = 3ω = √3
Substitute the value of A, B and ω in the general equation, we get x(t) = e-6t(cos √3t + √3/3 sin √3t)
Hence, the position function of the object is x(t) = e-6t(cos √3t + √3/3 sin √3t).
More on functions: https://brainly.com/question/31062578
#SPJ11
"Express the finite abelian groups tais
(a) Z36 x Z48 x Z60
(b) Z8 x Z9 x X Z11 X Z12
The finite abelian group Z36 x Z48 x Z60 can be expressed as Z2^6 x Z3^4 x Z5. The finite abelian group Z8 x Z9 x Z11 x Z12 can be expressed as Z2^3 x Z3^2 x Z11 x Z2^2 x Z3.
(a) The finite abelian group Z36 x Z48 x Z60 can be expressed as the direct product of its prime power factorizations. The prime factorization of 36 is 2^2 * 3^2, 48 is 2^4 * 3, and 60 is 2^2 * 3 * 5. Therefore, the group can be written as Z2^6 x Z3^4 x Z5.
(b) The finite abelian group Z8 x Z9 x Z11 x Z12 can be expressed as the direct product of its prime power factorizations. The prime factorization of 8 is 2^3, 9 is 3^2, 11 is a prime number, and 12 is 2^2 * 3. Therefore, the group can be written as Z2^3 x Z3^2 x Z11 x Z2^2 x Z3.
In both cases, the group is expressed as the direct product of cyclic groups of prime power orders. The order of the group is the product of the orders of the individual cyclic groups, and the structure of the group is determined by the prime factors and their powers.
To know more about abelian group refer here:
https://brainly.com/question/30454143#
#SPJ11
What is the answer when you simplify it?[tex]7^{2} +2(\sqrt{81} +\sqrt{49} )[/tex]
A buyer for a grocery chain inspects large truckloads of apples to determine the proportion p of apples in the shipment that are rotten. Unless there is clear evidence that this proportion is less than 0.06, she will reject the shipment. To reach a decision she will test the hypotheses
 ,  . To do so, she selects an SRS of fifty apples from the over 20000 apples on the truck.
Suppose that only two of the apples sampled are found to have major defects, and she proceeds with the test. The P-value of her test is
Answer:
P value = 0.23527 which is greater than 0.10
Step-by-step explanation:
Given :
Phat = proportion of rotten apple = 2/50 = 0.04
1 - phat = 0.96
p = 0.06
Tstatistic = (Phat - p) / sqrt[(Phat(1-Phat))/n]
Tstatistic = (0.04 - 0.06)/sqrt[(0.04(0.96))/50]
Tstatistic = (-0.02) / 0.0277128
Tstatistic = - 0.7216
Pvalue of Tstatistic
P(Z < - 0.7216) = 0.23527 (Pvalue calculator)
According to historical data, it is believed that 12% of American adults work more than one job. To investigate if this claim is still accurate, a random sample of 100 American adults is selected. It is discovered that 18 of them work more than one job. A researcher would like to know if the data provide convincing evidence that the true proportion of American adults who work more than one job differs from 12%. What are the values of the test statistic and P-value for this test? Find the z-table here. z = 1.85, P-value = 0.0322 z = –1.85, P-value = 0.0322 z = 1.85, P-value = 0.0644 z = –1.85, P-value = 0.0644
Answer:
The answer is "Option C"
Step-by-step explanation:
Please find the complete question in the attached file.
In this question its value of P is 0.0644, the significance level is higher than 0.05. Which doesn't reject [tex]H_o[/tex],
Answer: C
Step-by-step explanation: EDGE 2022
What is the volume of a sphere with a radius of 12 units?
A. 1447 units
B. 230410 units
C. 5767 units
D. 17287 units
Answer:
7238 units^3
Step-by-step explanation:
The formula for the volume of a sphere of radius 12 units is
V = (4/3)(pi)r^3.
Here, with r = 12 units,
V = (4/3)(pi)(12 units)^3 = 7238 units^3
Answer:
V = 2304π units³
Step-by-step explanation:
V = (4/3)πr^3
V = (4/3)π(12)^3
V = (4/3)π(1728)
V = 2304π units³
23. The coordinates when the point (-4, 2) is reflected about the y-axis are: (a) (-2,4) (c) (4,2) (b) (4, -2) (d) (-4,-2) 24. The annual precipitation for one city is normally distributed with a mean
the coordinates of the reflected point are (4, 2).
When a point is reflected about the y-axis, the x-coordinate is negated while the y-coordinate remains the same.
The original point is (-4, 2). If we reflect this point about the y-axis, the x-coordinate becomes positive, and the y-coordinate remains unchanged.
Negating the x-coordinate, we get:
x-coordinate: -(-4) = 4
y-coordinate: 2 (unchanged)
Given the point (-4, 2), reflecting it about the y-axis would result in the x-coordinate changing its sign while the y-coordinate remains unchanged.
Therefore, the coordinates of the reflected point are (4, 2).
Among the options provided, the correct answer is (c) (4, 2).
Learn more about reflection here
https://brainly.com/question/23749548
#SPJ4
The following side lengths make a triangle: 5, 8, and 13.
True
False
Pls help me ‼️‼️‼️‼️
Answer:
no
Step-by-step explanation:
the first two numbers is not greater than 13 so no
Which of the following points is not an ordered pair for the function
ƒ(x ) =5/2 x + 6?
4, 16)
(2, 7)
(-2, 1)
Answer:
2,7
Step-by-step explanation:
To solve this type of problem you simply plug the left number or x value in the ordered pair into the function and then see if it equals the right or y value. So we would plug 4 in for x and get 16, you then do the same thing for the other two pairs and find out that when you plug 2 into the equation, it does not equal 7
(q15) A supply of soaps available at different prices is given by the supply curve
, where x is the product quantity. If the selling price is $250, find the producer surplus.
The producer surplus at a price of $250 based on the supply curve, s(x) = 180 + 0.3·[tex]x^{\frac{3}{2} }[/tex] is about $1,326.5
What is a supply curve?The supply curve is the graphical representation of the price of a good or service and the quantity that manufacturers are willing to supply or provide.
The function for the supply curve is; s(x) = 180 + 0.3·[tex]x^{\frac{3}{2} }[/tex]
When the selling price is $250, the quantity of the product supplied can be found from the equation; s(x) = 250 = 180 + 0.3·[tex]x^{\frac{3}{2} }[/tex]
0.3·[tex]x^{\frac{3}{2} }[/tex] = 250 - 180 = 70
[tex]x^{\frac{3}{2} }[/tex] = 70/0.3 = 700/3
x = (700/3)[tex]\frac{2}{3}[/tex] ≈ 37.9
The quantity of soap supplied when the price is $250, is therefore, about 37.9
The producer surplus can be calculated from the area of a trapezoid formula as follows;
A = (b₁ + b₂) × h/2
Where the length of the bases are; b₁ ≈ 37.9, b₂ = 0, and the height, h = (250 - 180) = 70
A = (37.9 + 0) × 70/2 = 1326.5
Therefore, at a selling price of $250, the producer surplus is about $1,326.5
Learn more on the supply curve here: https://brainly.com/question/2563488
#SPJ1
Part C Calculate the perimeter of ABC by adding the side lengths. Show your work.
Answer:
What is the lenght and the other things?
Step-by-step explanation:
Brainliest?
Answer:
see photo
Step-by-step explanation:
Solve 100x²+81=0 using square roots
Answer:
10
Step-by-step explanation:
The principal, real, root of:
100−−−√2
=10
All roots:
10
−10
100 is a perfect square
PLSSS HELP IMMEDIATELY!!!! i’ll mark brainiest if u don’t leave a link!
Answer:
A
Step-by-step explanation:
Answer: I would say it's B
Step-by-step explanation: The reason is because whiskers are primary to have, Sharp claws is a tool for animals to get food, and large beaks are used to pick at the food so they don't eat the wrong things.
What is the value of y?
2y°
y +10°
50°
A. 400
B. 60°
C. 500
D. 30°
Answer:
a part
Step-by-step explanation:
Attachment added....
Hope it helps :)
CAN SOMEONE PLEASE HELP ME WITH THIS PROBLEM. I HAVE TO SOLVE FOR A AND B
Answer:
b is 10 degrees and a is 64 degrees.
Step-by-step explanation:
Properties of a parallelogram needed for this problem: Opposite angles are congruent and adjacent angles are supplementary, meaning they add to 180 degrees.
This means that in the picture, 2a and 12b+8 are equal, while 2a and 5b+2 are supplementary.
From this we can make two equations:
2a=12b+8
and
2a+5b+2=180
If we subtract 5b+2 in the second equation, both equations will equal 2a. I'll explain why that's good. We end up with:
2a=12b+8
and
2a=180-5b-2
Now, we can set the two equations equal to each other because they both equal the same thing. Then simplify.
12b+8=180-5b-2
17b=170
b=10
Knowing b is 10 degrees, we can easily plug that back into one of our original two equations. I'll choose 2a=12b+8.
2a=12(10)+8
2a=120+8
2a=128
a=64
b is 10 degrees and a is 64 degrees.
Describe the sequence of transformations that maps PQR into P'Q'R' use the drop-down menus to explain your answer
Answer:
Rotation of 180° clockwise around the origin
Step-by-step explanation: if you rotate the first triangle 90 degrees, it will be in the lower quarter, so you need to rotate it 1 more time.
The transformations are clockwise rotation 180° and translation down by 1 unit.
What is rotation?Rotations are transformations that turn a shape around a fixed point. To rotate a shape we need: a centre of rotation. an angle of rotation (given in degrees) a direction of rotation – either clockwise or anti-clockwise.
From the given graph, the coordinates of triangle PQR are P(2, 1), Q(4, 6) and R(4, 1).
Rotating a point that has the coordinates (x,y) 180° about the origin in a clockwise direction, we have (-x,-y).
Here,
P(2, 1) → P'(-2, -1)
Q(4, 6) → Q'(-4, -6)
R(4, 1) → R'(-4, -1)
The translation down by 1 unit, we get (x, y-k)
P'(-2, -1) → P'(-2, -2)
Q'(-4, -6) → Q'(-4, -7)
R'(-4, -1) → R'(-4, -2)
The coordinates of triangle P'Q'R' are P'(-2, -2), Q(-4, -7) and R'(-4, -2)
Therefore, the transformations are clockwise rotation 180° and translation down by 1 unit.
Learn more about the rotation here:
brainly.com/question/1571997.
#SPJ2
A large jar contains 500 marbles. All of the marbles in the jar are either blue or yellow, and there are 3 times as many blue marbles as yellow marbles. Which equation can be solved to find the number of yellow marbles in the jar?
Answer:
The equation to solve to find the number of yellow marbles =
3y + y = 500
4y = 500
The number of yellow marbles = 125
Step-by-step explanation:
Let the number of
Blue marbles = x
Yellow marbles = y
A large jar contains 500 marbles.
x + y = 500
All of the marbles in the jar are either blue or yellow, and there are 3 times as many blue marbles as yellow marbles.
3y = x
Hence, we substitute 3y for ymx in the above equation
3y + y = 500
4y = 500
y = 500/4
y = 125
The number of yellow marbles = 125
Help! What does the bracket mean and how do I do the questions?
Answer:
maybe it meane 11/a
Step-by-step explanation:
Answer:
The bracket is the binomial.
The definition is: [tex]\binom{n}{k} = \frac{n!}{k!\cdot (n-k)!}[/tex]
Note that [tex]\binom{n}{k} = \binom{n}{n-k}[/tex]
The meaning is "if we have n elements, how many ways are there to choose k of them?" From this definition it should be obvious that [tex]\binom{n}{k} = \binom{n}{n-k}[/tex] - if you're picking k, it's just as many ways as choosing the (n-k) that you're not picking.
The coefficient can be found by realizing that to get x^9, we need to choose (from the full multiplication):
9 brackets to provide x2 brackets to provide the number 3There's [tex]\binom{11}{9}[/tex] ways to do that, so the component for x^9 will be:
[tex]\binom{11}{9} \cdot 3^2 \cdot x^9 = \frac{11!}{2!\cdot 9!} \cdot 3^2 \cdot x^9 = \frac{10\cdot 11}{2} \cdot 3^2 \cdot x^9 = 55 \cdot 9 \cdot x^9 = 495x^9[/tex]
So:
a = 2
Coefficient is 495
Can someone please explain how to do this i am so confused i just want to pass this class please :(
Answer:
x=6√3
Step-by-step explanation:
In 30-60-90 triangles, if the hypotenuse is x, the longest leg is [tex]\frac{x}{2}[/tex], and the shortest leg is [tex]\frac{x\sqrt{3} }{2}[/tex].
If the longest leg is 6, then [tex]\frac{x}{2} =6[/tex]
Multiply by 2,
[tex]x=12[/tex]
If x=12,
[tex]\frac{12\sqrt{3} }{2}[/tex]
[tex]=6\sqrt{3}[/tex]
So, the shortest leg is 6√3.