The solution of the given IVP y"+y' - 2y = 3 cos(3t) — 11sin (3t), y(0) = 0, - y'(0) = 6 is y(t) = (9/10)eᵗ - (3/10)e⁻²ᵗ + 3sin(3t) + 2cos(3t) using the Laplace transform
The differential equation given is
y'' + y' - 2y = 3cos(3t) - 11sin(3t), y(0) = 0, -y'(0) = 6.
Laplace Transform of the given differential equation
y'' + y' - 2y = 3cos(3t) - 11sin(3t)
Laplace Transform of y'' + y' - 2y = Laplace Transform of 3cos(3t) - 11sin(3t)
Laplace Transform of y'' + Laplace Transform of y' - Laplace Transform of 2y = 3
Laplace Transform of cos(3t) - 11
Laplace Transform of sin(3t)s²Y(s) - sy(0) - y'(0) + sY(s) - y(0) - 2Y(s) = 3 (s/(s² + 3²)) - 11(3/(s² + 3²))s²Y(s) - 6s + sY(s) - 2Y(s) = 3s/(s² + 3²) - 33/(s² + 3²)
Factorizing the left-hand side (s² + s - 2) Y(s) = 3s/(s² + 3²) - 33/(s² + 3²) + 6s Y(s) = (3s + 6)/(s² + 3²) - 33/(s² + 3²) / (s² + s - 2)
The roots of the characteristic equation are (s - 1) and (s + 2). Thus, the partial fraction is of the form:
Y(s)/(s² + s - 2) = A/(s - 1) + B/(s + 2)Y(s) = [A/(s - 1) + B/(s + 2)] * [(3s + 6)/(s² + 3²) - 33/(s² + 3²)]
Taking L.C.M, (s - 1)(s + 2)(s² + 3²),
we get
A(s + 2) + B(s - 1) = 3s + 6A(s - 1) + B(s + 2) = -33
On solving, we getA = 9/10 and B = -3/10
Thus, Y(s) = (9/10)/(s - 1) - (3/10)/(s + 2) + (3s + 6)/(s² + 3²)
Laplace Transform of y(t)y(t) = L⁻¹{Y(s)} = L⁻¹{(9/10)/(s - 1)} - L⁻¹{(3/10)/(s + 2)} + L⁻¹{(3s + 6)/(s² + 3²)}y(t) = (9/10)eᵗ - (3/10)e⁻²ᵗ + 3sin(3t) + 2cos(3t)
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Write an equation of the line that passes through (1,4) and is parallel to the line y =-5x+2
Answer:
y=-5x+9
Step-by-step explanation:
Answer:
y=-5x+-9
Step-by-step explanation:
If you notice is says that the line HAS to go through (1,4) but if you need it to go through (-1,4) it would be y=-5x+-1
PLEASE HELP ME WITH THIS TEST the LAST QATION AND I STUCK ON IT
Answer:
x = 36
∠M = 36
∠P = 71
∠N = 73
Step-by-step explanation:
pro'c that if (u o. uz, .... ud i~ a linearly independent 'ub>et of n• and co. cz ..... ct arc non1ero scalar-;, then (co uo.c2u2 ..... ctu.t} is also linearly mdependent.
we have shown that if {u1, u2, ..., ud} is linearly independent and c1, c2, ..., ct are non-zero scalars, then {c1u1, c2u2, ..., ctut} is also linearly independent.
To prove that the set {c1u1, c2u2, ..., ctut} is linearly independent, we need to show that the only solution to the equation c1u1 + c2u2 + ... + ctut = 0 is when c1 = c2 = ... = ct = 0.
Assume that there exist non-zero scalars c1, c2, ..., ct such that c1u1 + c2u2 + ... + ctut = 0. We can rewrite this equation as c1u1 + c2u2 + ... + ctut + 0u(t+1) + ... + 0un = 0, where u(t+1), u(t+2), ..., un are vectors in V.
Since the set {u1, u2, ..., ud} is linearly independent, it follows that c1 = c2 = ... = ct = 0. Otherwise, if any ci is non-zero, we could express one of the vectors u1, u2, ..., ut as a linear combination of the others, contradicting the linear independence of {u1, u2, ..., ud}.
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2x-3x^2-2x+3,(x +1)
Answer:
Answer Answer
(x+1) • (x-1) • (2x-1)
how to safely store deposits if you have more than $250,000
If you have more than $250,000 to deposit, you should consider spreading your money across multiple accounts or banks to ensure that your funds are fully insured by the FDIC (Federal Deposit Insurance Corporation).
If you have more than $250,000 to deposit, you can safely store your deposits by spreading them across multiple accounts and/or banks. This strategy is commonly referred to as "deposit insurance coverage" and is provided by the Federal Deposit Insurance Corporation (FDIC). In this way, if any one bank fails, you will still have access to your insured funds through the other banks.
A second option is to use the CDARS program. The Certificate of Deposit Account Registry Service is a program that can be utilized by investors to deposit their funds in CDARS member banks. The service allocates these deposits across multiple banks to guarantee that the funds are fully insured.
The third option is to seek the services of an FDIC-insured bank that offers deposit insurance coverage beyond the $250,000 limit. These banks may provide higher deposit insurance coverage, and you can inquire with your bank to determine if they offer this service.
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The sequence of the differences, 2, 4, 8, 16, 32, … is a geometric sequence with:
Answer:
The first term as 2.
Pattern: Multiply the previous term and 2 to get the next term.
Step-by-step explanation:
The pattern is every term is 2× the previous term.
The sequence of the differences, 2, 4, 8, 16, 32, … is geometric. The pattern is every term is 2 times the previous term.
What is geometric series?The geometric series is a series in which the ratio of two consecutive numbers is constant.
The sequence of the differences, 2, 4, 8, 16, 32, … is geometric.
So, The ratio of two consecutive numbers is constant.
r = 4/2 = 2
r = 8/4 = 2
Thus, The pattern is every term is 2 times the previous term.
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Albert bought 3 blank tapes for $5.95. Find the cost per tape to the nearest cent.
Answer:
17.85
Step-by-step explanation:
just times 5.95 by 3
what is (√7)² in simplest form?
Answer:
14?
Step-by-step explanation:
So sorry if I got it wrong-
what is the value of x that makes this equation true 3/4 + x = 1/8
The correct value of ''n'' in this equation will be -5/8.
Step-by-step explanation:To solve this equation, we're going to isolate ''x'', and then we're going to subtract the two fractions.
But to subtract the two fractions with different denominators, let's represent the fractions with the least common multiple of the denominators, being 8.
Resolution:\(\large \sf \dfrac{3}{4} +x=\dfrac{1}{8}\)
\(\large \sf x= \dfrac{1}{8} -\dfrac{3}{4}\)
\(\large \sf x= \dfrac{1-6}{8}\)
\(\large \sf x= \dfrac{-5}{8}\)
\(\boxed{\boxed{{\large \sf x=-\dfrac{5}{8} }}}\)
So we can conclude that the value of ''x'' in this equation will be -5/8.
need this answered asap pretty please :D
Answer:
A
Step-by-step explanation:
I have attached a photo with working.
Given a standard normal distribution, determine the following probability. Round the solution to four decimal places, if necessary.
P(-0.15 < z < 2.67)
To find the probability of the interval (-0.15 < z < 2.67) in a standard normal distribution, we can use the cumulative distribution function (CDF) of the standard normal distribution.
The CDF gives the probability that a standard normal random variable is less than or equal to a given value. In this case, we need to find the probability that z is less than or equal to 2.67 and subtract the probability that z is less than or equal to -0.15.
Using a standard normal distribution table or a statistical calculator, we can find the corresponding probabilities:
P(z < 2.67) ≈ 0.9960
P(z < -0.15) ≈ 0.4404
To find the probability of the interval (-0.15 < z < 2.67), we subtract the probability of z < -0.15 from the probability of z < 2.67:
P(-0.15 < z < 2.67) ≈ P(z < 2.67) - P(z < -0.15)
≈ 0.9960 - 0.4404
≈ 0.5556
Therefore, the probability of the interval (-0.15 < z < 2.67) in a standard normal distribution is approximately 0.5556.
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3400+dollars+is+placed+in+an+account+with+an+annual+interest+rate+of+8.25%.+how+much+will+be+in+the+account+after+25+years,+to+the+nearest+cent?
To find the amount in the account after 25 years, we can use the formula for compound interest which is given by;A = P (1 + r/n)^(nt) where;A = the final amount P = the principal or initial amount of dollarsr = the annual interest rate as a decimaln = the number of times the interest is compounded per yeart = the number of years So, for the given question;P = 3400 dollarsr = 8.25% per annum = 0.0825n = 1 (annually)t = 25 yearsSubstituting the values in the formula;A = 3400(1 + 0.0825/1)^(1×25) = 3400(1.0825)^25 = 3400 × 4.27022 = 14531.746 dollarsTherefore, the amount in the account after 25 years, to the nearest cent is $14531.75.
To calculate the future value of the account after 25 years, we can use the formula for compound interest:
A = P(1 + r/n)^(nt)
Where:
A = Final amount (future value)
P = Principal amount (initial deposit)
r = Annual interest rate (as a decimal)
n = Number of times interest is compounded per year
t = Number of years
In thiS case, the principal amount (P) is $3400, the annual interest rate (r) is 8.25% or 0.0825 as a decimal, the number of times interest is compounded per year (n) is not specified, so we will assume it is compounded annually (n = 1), and the number of years (t) is 25.
Plugging in these values into the formula:
A = 3400(1 + 0.0825/1)^(1*25)
Simplifying the expression:
A = 3400(1.0825)^25
Calculating the value using a calculator or computer:
A ≈ 3400(3.368599602) ≈ $11,458.83
Therefore, to the nearest cent, the amount in the account after 25 years will be approximately $11,458.83.
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Given the following data: An initial amount of $3400 is placed in an account with an annual interest rate of 8.25%. We are to determine the amount in the account after 25 years, to the nearest cent.
Therefore, the amount in the account after 25 years, to the nearest cent is $23956.35.
The formula for the compound interest is given by;
\(P(1 + r/n)^{nt}\)
Where; P is Principal amount (the initial amount you borrow or deposit), r is Annual interest rate (as a decimal), n is Number of times the interest is compounded per year (in this case, it's annual, therefore n = 1), t is Number of years.
Hence, the amount in the account after 25 years is;
\(P(1 + r/n)^{nt} = $3400(1 + 0.825 / 1)^{1 \times25}\)
\(= 3400(1.0825)^{25}\)
\(= $3400 \times 7.04567\)
= $23956.35
Therefore, the amount in the account after 25 years, to the nearest cent is $23956.35.
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24.
What is the slope of a line through (-3, 4) and
(5, 6)?
PLEASE help if you can!!
Answer:
slope = 2 : 8 or 1:4
Step-by-step explanation:
a(-3, 4)
b(5, 6)
slope = rise / run
slope (6-4, 3+5))
slope = 2 : 8 or 1:4
Answer:
Slope =¼
Step-by-step explanation:
\((-3, 4) \: (5, 6) \\ x _{1} = - 3 , y_1 = 4 \\ x_2 = 5 \\ y_2 = 6\)
\(m = \frac{y_2 - y_1}{x_2 - x_1} \\ m = \frac{6 - 4}{5 - ( - 3)} \\ m = \frac{2}{8} = \frac{1}{4} \)
Solve for K (5k-5)+6=16
Answer:
look at explanation k=3
Step-by-step explanation:
5×3=15 15-5=10 10+6=16
10. (25 points) Find the general power series solution centered at xo = 0 for the differential equation y' - 2xy = 0
In order to solve a differential equation in the form of a power series, one uses a general power series solution. It is especially helpful in situations where there is no other way to find an explicit solution.
For the differential equation y' - 2xy = 0, we can assume a power series solution of the following type in order to get the general power series solution centred at xo = 0.
y(x) = ∑[n=0 to ∞] cnx^n
where cn are undetermined coefficients.
By taking y(x)'s derivative with regard to x, we get:
y'(x) = ∑[n=0 to ∞] ncnx = [n=1 to ] (n-1) ncnx^(n-1)
When we enter the differential equation with y'(x) and y(x), we obtain:
∑[n=1 to ∞] cnxn = ncnx(n-1) - 2x[n=0 to ]
With the terms rearranged, we have:
[n=1 to]ncnx(n-1) - 2x(cn + [n=1 to]cnxn) = 0
When we multiply the series and group the terms, we get:
∑[n=1 to ∞] (ncn - 2)x(n- 1) - 2∑[n=1 to ∞] cnx^n = 0
We obtain the following recurrence relation by comparing the coefficients of like powers of x on both sides of the equation:
For n 1, ncn - 2c(n-1) = 0.
The recurrence relation can be summarized as follows:
ncn = 2c(n-1)
By multiplying both sides by n, we obtain:
cn = 2c(n-1)/n
We can see that the coefficients cn can be represented in terms of c0 thanks to this recurrence connection. Starting with an initial condition of c0, we may use the recurrence relation to compute the successive coefficients.
As a result, the following is the universal power series solution for the differential equation y' - 2xy = 0 with its centre at xo = 0:
c0 = y(x) + [n=1 to y] (2c(n-1)/n)x^n
Keep in mind that the beginning condition and the precise interval of interest affect the value of c0 and the series' convergence.
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F(x)=2(3-x),find f(-7)
Answer:
\(f(-7) = 20\)
Step-by-step explanation:
Given:
\(f(x) = 2(3 -x)\)
Solving for \(f(-7)\):
\(f(-7) = 2(3 -(-7)) \\ f(-7) = 2(3 +7) \\ f(-7) = 2(10) \\ f(-7) = 20\)
what is 3 1/6 divided by 1 3/8
The result of the division of dividend 3 1/6 by divisor 1 3/8 is computed as 76/33.
Define the method of division?A division method is the process used to divide something. According to the degree of difficulty, there are three different sorts of division procedures. These include the bus stop method, extended division method, and the chunking approach, often known as division by repeated subtraction.For the stated question;
The dividend is 3 1/6, which is given in mixed fraction.
In proper fraction; 3 1/6 = 19/6.
The divisor is 1 3/8 = 11/8.
Thus,
= 19/6 / 11/8
= 19*8 / 6*11
= 76/33
Thus, the result of the division of dividend 3 1/6 by divisor 1 3/8 is computed as 76/33.
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please with answer and explanation!!
Subtract the height of the dive from
The total distance he dove:
15 - 9 = 6
The pool is 6 meters deep
the test to detect the presence of a certain protein is 98 ccurate for corn plants that have the protein and 97 ccurate for corn plants that do not have the protein. do not round your answer.
The probability that a randomly chosen plant is detected incorrectly is 0.02965 = 2.965%.
How to determine the probabilityFrom the question, we have the following parameters that can be used in our computation:
2% of 3.5% have the protein3% of 96.5% do not have the proteinUsing the above as a guide, we have the following:
Probability = 2% * 3.5% + 3% * 96.5%
Evaluate
Probability = 0.02965
Rewrite as
Probability = 2.965%
Hence, the probability is 2.965%.
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Question
The test to detect the presence of a certain protein is 98% accurate for corn plants that have the protein and 97% accurate for corn plants that do not have the protein.
If 3.5% of the corn plants in a given population actually have the protein, the probability that a randomly chosen plant is detected incorrectly is
The green point is marked on the coordinate plane. What ordered pair represents the green point?
Answer:
pretty sure its (-6, -4)
Step-by-step explanation:
in the ||| quadrant so I know they are both negative.
The point is 6 units to the left and 4 units down.
Hope this helps! Good luck!
can someone help me pls );
Answer:
Hope it helps you,
Step-by-step explanation:
As the figure can be split in to 3 geometric figure,
Rectangle , Triangle and Semi circle ,
So first find the area of these figures then add up them ,
Area of rectangle = Length * width
Length = 20m m and width = 14 mm
hence
Area of rectangle = 20*14 = 280 mm^2
Now ,
Are of Circle = \(\\ \pi *d^{2} /4\)
Then Area of semi circle = \(\\ \pi *d^{2} /8\)
Hence we have d= 20mm
Putt in semi circle formula we get,
Area of Semi Circle= (3.14)*400/8 = 157 mm^2
Now area of triangle = 1/2 * length*width
length =32-20 = 12 mm
width = 14 mm
putt in the formula we get ,
Area of triangle = 1/2*12*14 = 84 mm^2
Now add these 3 Areas to get total Area,
Total Area = 84+157+280 = 521 mm^2
A digital thermometer costs $599.99. The company offers a $200 rebate. What percent of the cost is
the rebate?
Answer:
33.33%
Step-by-step explanation:
600/3 is 200 which means 1/3 of it is rebated
Mohal is going to invest $830 and leave it in an account for 8 years. Assuming the interest is compounded daily, what interest rate, to the nearest hundredth of a percent, would be required in order for Mohal to end up with $1,110?
The interest rate, to the nearest hundredth of a percent, that would be required in order for Mohal to end up with $1,110 would be = 4.2%
What is interest rate?The interest rate of an investment is defined as the rate at which an individual receives stipulated amount of money for a period of time over the investment made.
The amount for investment (P) = $830
The time for investment(T) = 8 years
The simple interest yield(SI) = $1,110 -830 = 280
The rate(R) = x%
using the formula;
Simple interest = P×T×R/100
Make R the subject of formula;
R= SI ×100/P×T
R= 280×100/830×8
R= 28000/ 6,640
R= 4.2%
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five integers that are congruent to 4 mod 13
Five integers that are congruent to 4 mod 13 are 4, 17, 30, 43, and 56.
To find integers congruent to 4 mod 13, you can follow these steps:
Step 1: Understand the congruence. Two numbers are congruent mod 13 if their difference is divisible by 13. In this case, we are looking for integers x such that x ≡ 4 (mod 13).
Step 2: Generate the first integer. The first integer is simply 4 because 4 ≡ 4 (mod 13).
Step 3: Add 13 to the previous integer. Adding 13 to the previous integer will give you the next integer in the sequence because (x + 13) - 4 = x - 4 + 13 is also divisible by 13.
Step 4: Repeat step 3 four times. Starting with 4, we get:
4 + 13 = 17
17 + 13 = 30
30 + 13 = 43
43 + 13 = 56
Thus, the five integers are 4, 17, 30, 43, and 56.
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Hola me pueden ayudar con matematica
Tienes la tarea en Ingles? Yo solo puedo hacer mathematics en ingles. Gracias.
Are polynomials closed under addition and subtraction?
Polynomials form a system like to that of integers hence they are closed under the operations of addition and subtraction.
Exponents of polynomials are whole numbers.
Hence the resultant exponents will be whole numbers , addition is closed for whole numbers. As a result, polynomials are closed under addition.
If an operation results in the production of another polynomial, the resulting polynomials will be closed.
The outcome of subtracting two polynomials is a polynomial. They are also closed under subtraction as a result.
The word polynomial is a Greek word. We can refer to a polynomial as having many terms because poly means many and nominal means terms. This article will teach us about polynomial expressions, polynomial types, polynomial degrees, and polynomial properties.
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I'm thinking of a number. If I add 4 to the number and then multiply the result by 3,the answer is the same as subtracting 5 from the number and then multiplying the result by 2.
(a) in terms of x?
(b) solve the equation n find the number what I'm thinking of
Answer:
x=-22
Step-by-step explanation:
Let's substitute the number you are thinking of with x
(x+4)*3=(x-5)*2
3x+12=2x-10
x+12=-10
x=-22
5. Dennis is selling chocolate bars for a
fundraiser, and if he sells over $175 worth of
candy, he'll win a prize. If chocolates sell for
$2.50 a bar, and Dennis has already sold $40
worth of candy, then how many more bars does
he have to sell in order to win a prize?
Variable:
Inequality:
Solution:
Answer: 54, inequality would be 2.50x+40>or=175 i think
Step-by-step explanation:175-40=135 divided by 2.50=54
Answer: 54, inequality would be 2.50x+40>or=175 i think
Step-by-step explanation:175-40=135 divided by 2.50=54
pls help asap if you can!!!
The statement that best proves that <XWY ≅ <ZYW is that two parallel lines are cut by a transversal, then the alternate interior angles are congruent
How to determine the statementTo determine the correct statement, we need to know the properties of a parallelogram.
These properties includes;
Opposite sides are parallel. Opposite sides are congruent. Opposite angles are congruent. Same-Side interior angles (consecutive angles) are supplementary. Each diagonal of a parallelogram separates it into two congruent triangles.The diagonals of a parallelogram bisect each other.Learn more about parallelogram at: https://brainly.com/question/10744696
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What are the roots of the polynomial equation x superscript 4 baseline x cubed = 4 x squared 4 x? use a graphing calculator and a system of equations.
Therefore, the roots of the polynomial equation \(x^4 - x^3 = 4x^2 + 4x\) are infinite, and it is not possible to find them precisely using a graphing calculator or a system of equations.
To find the roots of the polynomial equation \(x^4 - x^3 = 4x^2 + 4x\), we can utilize a graphing calculator and a system of equations. Here's how you can proceed: Rewrite the equation to bring all terms to one side:
\(x^4 - x^3 - 4x^2 - 4x = 0\)
Enter the equation into a graphing calculator or any equation-solving software. Look for the x-intercepts or roots of the equation on the graphing calculator. These are the values of x where the graph intersects the x-axis. Alternatively, we can solve the equation using a system of equations. Let's set up the system:
Consider the original equation:\(x^4 - x^3 = 4x^2 + 4x.\)
Rearrange the equation to bring all terms to one side:
\(x^4 - x^3 - 4x^2 - 4x = 0\)
Introduce a new variable, y, to create a system of equations:
\(x^4 - x^3 - 4x^2 - 4x = 0 (Equation 1)\)
\(y = x^4 - x^3 - 4x^2 - 4x (Equation 2)\)
Now, we can solve this system of equations by eliminating y. Subtract Equation 2 from Equation 1:
0 = 0
The result is always true, indicating that there is an infinite number of solutions. This suggests that the equation has infinitely many roots.
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