evaluate (0.63) - (0.36)
Answer:
0.27
Step-by-step explanation:
Answer: 0.27
Step-by-step explanation:
Find the solution of the initial value problem. y ''+2y'+2y = h(t), y(0) = 0, y' (0) = 1;
h(t) = 1, π ≤ t < 2π
0, 0 ≤ t < π and t ≥ 2π.
The solution to the initial value problem is:
y(t) = \(e^{(-t)}\)(1/2 cos(t) + 1/2 sin(t)) + (1/2) for 0 ≤ t < π and t ≥ 2π
y(t) = \(e^{(-t)}\)(π-2)/2)sin(t) + ((π+2)/2) + ((π-2)/2)t for π ≤ t < 2π.
To solve this initial value problem, we will use the method of undetermined coefficients to find a particular solution to the non-homogeneous differential equation. Then, we will combine the particular solution with the general solution to the homogeneous equation to get the complete solution.
Homogeneous equation:
y'' + 2y' + 2y = 0
Characteristic equation:
r² + 2r + 2 = 0
Solving for r using the quadratic formula:
r = (-2 ± √(4 - 8))/2
r = -1 ± i
General solution to the homogeneous equation:
y_h(t) = \(e^{(-t)}\)(c1 cos(t) + c2 sin(t))
Particular solution:
We have h(t) = 1 for 0 ≤ t < π and t ≥ 2π, and h(t) = π for π ≤ t < 2π. Since h(t) is not a solution to the homogeneous equation, we assume a particular solution of the form yp(t) = A for 0 ≤ t < π and t ≥ 2π, and yp(t) = Bt for π ≤ t < 2π.
Taking derivatives of yp(t):
yp'(t) = 0 for 0 ≤ t < π and t ≥ 2π, and yp'(t) = B for π ≤ t < 2π.
yp''(t) = 0 for all t.
Substituting into the differential equation:
yp''(t) + 2yp'(t) + 2yp(t) = h(t)
0 + 2B + 2A = 1 for 0 ≤ t < π and t ≥ 2π
0 + 2B + 2A = π for π ≤ t < 2π.
Solving for A and B:
A = 1/2 for 0 ≤ t < π and t ≥ 2π
A = (π-2)/2 for π ≤ t < 2π
B = -1/2 for 0 ≤ t < π and t ≥ 2π
B = (π+2)/2 for π ≤ t < 2π
Particular solution:
yp(t) = (1/2) for 0 ≤ t < π and t ≥ 2π
yp(t) = ((π-2)/2)t for π ≤ t < 2π.
Complete solution:
y(t) = yh(t) + yp(t)
y(t) = \(e^{(-t)}\)(c1 cos(t) + c2 sin(t)) + (1/2) for 0 ≤ t < π and t ≥ 2π
y(t) = \(e^{(-t)}\)(c1 cos(t) + c2 sin(t)) + ((π-2)/2)t + ((π+2)/2) for π ≤ t < 2π.
Using the initial conditions:
y(0) = 0 gives c1 = (1/2)
y'(0) = 1 gives c2 = 1/2
y(t) = \(e^{(-t)}\)(1/2 cos(t) + 1/2 sin(t)) + (1/2) for 0 ≤ t < π and t ≥ 2π
y(t) = \(e^{(-t)}\)(π-2)/2)sin(t) + ((π+2)/2) + ((π-2)/2)t for π ≤ t < 2π.
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did i do this correct and i need help for the last question urgent
Answer:
Correct so far.
The median score must be between positions 32 and 33 on the table.
The median score is 72.
Step-by-step explanation:
Correct so far.
The median score must be between positions 32 and 33 on the table.
The median score is 72.
Two business partners jointly own a firm and share equally the revenues. They individually and simultaneously decide how much effort to put into the firm. Let s
1
and s
2
denote the effort choices of partner 1 and partner 2, respectively. Assume s
i
∈[0,4]. The cost of effort is given by s
i
2
for i∈{1,2}. The firm's revenue is given by 4(s
1
+s
2
+bs
1
s
2
) where 0≤b≤
4
1
. (Note that the parameter b reflects the synergies between the effort levels. b>0 implies that the more one partner works, the more productive the other partner is.) The payoffs for partners 1 and 2 are:
u
1
(s
1
,s
2
)=
2
1
[4(s
1
+s
2
+bs
1
s
2
)]−s
1
2
u
2
(s
1
,s
2
)=
2
1
[4(s
1
+s
2
+bs
1
s
2
)]−s
2
2
1 (a) (5 points) Find the best response function of each partner. Draw the best response functions. (b) (5 points) Solve for the Nash equilibrium of this game. (c) (5 points) Now assume that b=−
2
1
. (This implies that the effort levels have negative synergies.) Solve for the best response functions in this case and draw them. (d) (5 points) Solve for the Nash equilibrium of this game. (e) (4 points) Now suppose that the partners can write a contract on effort levels. That is, they can determine the effort levels which would maximize the firm's revenue net of total effort costs. Briefly explain whether you would expect the effort levels they choose to specify in the contract to be higher or lower than the effort levels you found in parts (b) and (d).
The analysis involves solving optimization problems, graphing best response functions, identifying Nash equilibria, and considering the potential effects of a contract on effort levels
(a) To find the best response functions, we need to determine the effort choices that maximize each partner's payoff given the other partner's effort. This involves optimizing their payoffs by differentiating the utility functions with respect to their effort levels, setting the derivatives equal to zero, and solving for the effort choices. Drawing the best response functions involves plotting the effort choices for each partner as a function of the other partner's effort.
(b) The Nash equilibrium is reached when both partners are choosing their best responses simultaneously. It can be found by identifying the intersection point(s) of the best response functions.
(c) When there are negative synergies (b < 0), the best response functions and their graphical representation will differ from the previous case.
(d) Similar to part (b), the Nash equilibrium for the case with negative synergies is found by identifying the (s) intersection pointof the best response functions.
(e) In this case, where the partners can write a contract on effort levels to maximize the firm's revenue net of total effort costs, the chosen effort levels are likely to be different from the effort levels determined in parts (b) and (d). The contract allows the partners to coordinate their efforts more efficiently by aligning their choices with the overall revenue maximization objective, potentially resulting in higher or lower effort levels compared to the Nash equilibria, depending on the specific contract terms and their impact on synergies.
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Determine the equation of the circle with center (0,−6) containing the point (−\sqrt{28 },3)
I did not get Your Question Probably But the way I see it the answer is:
The equation of a circle with center (h, k) and radius r can be written as:
(x - h)^2 + (y - k)^2 = r^2
In this case, the center of the circle is (0, -6). To find the radius, we can use the distance formula between the center and the given point (-√28, 3):
r = √((x₂ - x₁)^2 + (y₂ - y₁)^2)
Plugging in the values:
r = √((-√28 - 0)^2 + (3 - (-6))^2)
Simplifying:
r = √(28 + 81)
r = √109
Therefore, the equation of the circle with center (0, -6) and containing the point (-√28, 3) is:
(x - 0)^2 + (y + 6)^2 = (√109)^2
Simplifying further:
x^2 + (y + 6)^2 = 109
Answer:
The equation of the circle with center (0, -6) containing the point (-√28, 3) is x^2 + (y + 6)^2 = 109.
Step-by-step explanation:
The equation of a circle with center (h, k) and radius r is given by the formula:
(x - h)^2 + (y - k)^2 = r^2
In this case, the center of the circle is (0, -6), which means that h = 0 and k = -6. We also know that the circle contains the point (-√28, 3), which means that this point is on the circle and satisfies the equation above.
To find the radius r, we can use the distance formula between the center of the circle and the given point:
r = sqrt((0 - (-√28))^2 + (-6 - 3)^2) = sqrt(28 + 81) = sqrt(109)
Substituting h, k, and r into the equation of the circle, we get:
x^2 + (y + 6)^2 = 109
Therefore, the equation of the circle is x^2 + (y + 6)^2 = 109.
Help me ASAP for this question!
Select all that apply.
Which of the following names a line in the drawing
Answer:
I believe its the third one, its makes a symmetrical line so that's my guess
Step-by-step explanation:
The rest don't make a line
according to the empirical rule, what percentage of data in a typical normal distribution (bell-shaped) lies within one standard deviation from the mean?
Approximately 68% of the data in a normal distribution lies within one standard deviation from the mean according to the empirical rule.
According to the empirical rule, which applies to a normal distribution, approximately 68% of the data falls within one standard deviation of the mean. Specifically, 68.27% of the data falls within one standard deviation of the mean, which means that if the distribution is bell-shaped, the data is symmetrically distributed around the mean and most of the data is clustered within one standard deviation from the mean.
The empirical rule also states that approximately 95% of the data falls within two standard deviations of the mean, and about 99.7% of the data falls within three standard deviations of the mean.
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The circle x2 + y2 – 12x + 6y – 19 = 0 is translated one unit right and two units down. Which is the radius and center of the translated circle?
Center (6, –3); r = 8
Center (7, –5); r = 8
Center (6, –3); r = 64
Center (7, –5); r = 64
According to the question, the standard equation for the circle is \(x^{2} +y^{2} =r^{2}\) in which the points (x, y) are the circumference point and 'r' is the radius of the circle.
The given expression for the circle is shown below:
\(x^{2} +y^{2} -12x+6y-19=0\)
Bring same variable terms to one side and again re-write the expression:
\(x^{2} -12x+y^{2} +6y-19=0\)
Now, to do factors of the given expression add and subtract 36,9 on both the sides
\(x^{2} -12x+36+y^{2} +6y+9=19+36+9\)
Factors can be re-written as:
\((x-6)^{2} +(y+3)^{2}=64\)
Comparing the calculated equation for the circle with the standard equation, we circle
The center points as (6,-3) and radius as (r = 8).
Hence, the correct answer is Center(6,-3), r = 8.
What is circle?
The circle can be defined as a symmetrical shaped. It has more than one points and all are at the equidistant from the center.
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Answer:
B
Center (7, –5); r = 8
Step-by-step explanation:
HELP ME PLEASE!!! WORTH 10 POINTS!!
drag and drop each expression to correctly classify it as having a positive or negative product ( just put the ones in a positive group in that group and sam for the other one)
(5/6)(5/6) (-5/6)(5/6)
(5/6)(-5/6) (-5/6)(-5/6)
Answer:
Step-by-step explanation:
(5/6)(5/6) (-5/6)(5/6)
(5/6)(-5/6) (-5/6)(-5/6) they are they same but you can also change them and they will still be the same just backwords
Hope that helps
Use Greens Theorem to find the counterclockwise circulation and outward flux for the field F = (6y2 ? x2)i - (x2 +6y2)j and curve C: the triangle bounded by y = 0, x= 3, and y = x. The flux is . (Simplify yow answer) The circulation is . (Simplify your answer)
The counterclockwise circulation of F is 99
The flux F across C is -99
Define the area of integration
C: Triangle bounded by
x = 0, y = 0 , y = x
\(0\leq x\leq 3,0\leq y\leq x\)
Applying Green's Theorem for counterclockwise circulation
\(F=y^2-6x^2i+6x^2+y^2j\)
\(I=\int\limits_C P(x,y)dx+Q(x,y)dy=\int\limits\int\limits_D(\frac{dQ}{dx}-\frac{dP}{dy} )dA\)
\(p(x,y)=y^2-6x^2---- > \frac{dP}{dy}=2y\\ \\Q(x,y)=6x^2+y^2---- > \frac{dQ}{dx}=12x\\ \\I=\int\limits\int\limits_D 12x -2y dA\)
Calculate the integral. (With respect to the x axis)
\(I=\int\limits^3_0 \int\limits^x_0 {12x}-2y \, dydx\\ \\I=\int\limits^3_0 {12x}-y^2|^x_0 \, dx \\\\I=\int\limits^3_0 11x^2\, dx\\\\I=\frac{11x^3}{3}|^3_0\\ \\I=99\)
Applying Green's Theorem for flux of the field
\(F=y^2-6x^2i+6x^2+y^2j\)
\(\int\limits\int\limits_D(\frac{dQ}{dx}+\frac{dP}{dy} )dA\) the flux across the C
\(p(x,y)=y^2-6x^2---- > \frac{dP}{dx}=-12x\\ \\Q(x,y)=6x^2+y^2---- > \frac{dQ}{dy}=2y\\ \\I=\int\limits\int\limits_D 2y-12x dA\)
Calculate the integral. (With respect to the x axis)
\(I=\int\limits^3_0 \int\limits^x_0 {2y}-12x \, dydx\\ \\I=\int\limits^3_0 y^2-12xy|^x_0 \, dx \\\\I=\int\limits^3_0- 11x^2\, dx\\\\I=-\frac{11x^3}{3}|^3_0\\ \\I=-99\)
The counterclockwise circulation of F is 99
The flux F across C is -99
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The given question is incomplete, So i take similar question:
Use Green's theorem to find the counterclockwise circulation and outward flux for the field\(F=(y^2 - 6x^2) i + (6x^2 + y^2) j\) and curve C: the triangle bounded by y=0, x=3 and y=x. What is the flux and circulation?
The tape diagram represents an equation.
Answer:
y² = 7
Step-by-step explanation:
Solve the following system of equations:
x − 2y = 14
x + 3y = 9
Answer:
(12, - 1)
Step-by-step explanation:
x - 2y = 14 ......... (1)
x + 3y = 9 ......... (2)
(2) - (1)
(x - x) + (3y - ( - 2y)) = 9 - 14
5y = - 5 ⇒ y = - 1
x + 3( - 1) = 9 ⇒ x = 12
(12, - 1)
Kristen's financial advisor has given her a list of 8 potential investments and has asked her to select and rank her favorite four. In how many different ways can she do this?
The number of ways in which Kristen can rank her favorite four from 8 using permutations is 1680.
The permutation is a way of finding the number of ways of selecting a set of articles from a larger set of articles, with the order of selection being significant.
If we want to choose r items from n items, where the order of selection is significant, then we can find the number of ways of doing this using the permutation as follows:
nPr = n!/{(n - r)!}.
In the question, we are asked to find the number of ways Kristen can rank her favorite four investments from the 8 potential investments that her financial advisor has given her.
Thus, using permutations, we need to select 4 items from 8 items, with order of selection being significant.
Substituting n = 8, and r = 4 in the formula, we get:
8P4 = 8!/{(8 - 4)!}
= 8!/4!
= 5 * 6 * 7 * 8
= 1680.
Thus, the number of ways in which Kristen can rank her favorite four from 8 using permutations is 1680.
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If x/y + y/x = -1 , find the value of x^3 - y^3
Answer:
0
Step-by-step explanation:
Multiplying the first equation by xy, we have ...
x^2 +y^2 = -xy
Factoring the expression of interest, we have ...
x^3 -y^3 = (x -y)(x^2 +xy +y^2)
Substituting for xy using the first expression we found, this is ...
x^3 -y^3 = (x -y)(x^2 -(x^2 +y^2) +y^2) = (x -y)(0) = 0
The value of x^3 -y^3 is 0.
Starting with the number 10, build a sequence of 5 numbers.
Answer:
Step-by-step explanation:
To build a sequence, you have to create a rule. For example, if the rule is +2, then you add 2 to 10 to get 12, and then you add 2 to 12 to get 14, and so on. Your sequence would then be 10, 12, 14, 16, 18.
what is ordered pair
Answer:
see explanation
Step-by-step explanation:
An ordered pair is a set of coordinates (x, y )
This can be o point on a graph or the solution to a system of equations or values from a table
Answer: It's a point on a graph (y,x)
Step-by-step explanation:
Find the area of the shaded region enclosed by the following functions
y=x
y=1
y= 1/36 x^2
The area of the shaded region enclosed by the given functions is 18 square units.
The functions given in the question are y = x, y = 1 and y = (1/36)x².
The shaded region is enclosed by these functions.
We need to find the area of the shaded region.
Using integration, we can find the area enclosed by the curves.
At x = 0, the parabola and line intersect.
Therefore, we have to integrate for the intersection points on the left and right of x = 0.
Area enclosed by the curves y = x, y = 1 and y = (1/36)x² is given by the integral:
∫(0 to 6) [(1/36)x² - x + 1] dx + ∫(-6 to 0) [(1/36)x² + x + 1] dx
= ∫(0 to 6) [(1/36)x² - x + 1] dx + ∫(0 to 6) [(1/36)x² - x + 1] dx {taking x = -x' in second integral}= 2∫(0 to 6) [(1/36)x² - x + 1] dx = (2/36)∫(0 to 6) x² dx - 2∫(0 to 6) x dx + 2∫(0 to 6) 1 dx
= (2/36) [(1/3)x³]0 to 6 - 2 [(1/2)x²]0 to 6 + 2 [x]0 to 6
= (1/54) [6³ - 0] - 2 [6² - 0] + 2 [6 - 0]
= 18 square units
The area of the shaded region enclosed by the given functions is 18 square units.
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The perimeter of a rectangle is 72 meters. The width of
the rectangle iS 4 meters less than its length. Find the length and the
width of the rectangle. What is the equation
Answer:
Length = 20 feet
Width = 16 feet
Step-by-step explanation:
Given information:
The perimeter of a rectangle is 72 meters. The width of the rectangle is 4 meters less than its length.Define the variables:
Width = x metersLength = (x + 4) metersSubstitute the defined variables and given perimeter into the formula for the perimeter of a rectangle.
\(\begin{aligned}\textsf{Perimeter of a rectangle}&=2(\sf width+length)\\\\\implies 72&=2(x+(x+4))\\72&=2(2x+4)\\72&=4x+8\\64&=4x\\x&=16\end{aligned}\)
Therefore the dimensions of the rectangle are:
Length = 16 + 4 = 20 feetWidth = 16 feetcan anyone please solve this question
Answer:
<acb=90°
inscribed angle from the diameter is 90°
Find the missing measure. 50° x°
Answer:
x = 129° ( linear pair then vertically opp angles)
Mr brown shares with the class that 70 percent of the students got an a on the English quiz if Mr brown has 100 student what percent of the students did not get an a
can someone help me solve this equation
2/3m=1/2
Steps to solve:
2/3m = 1/2
~Multiply 3/2 to both sides
m = 3/4
Best of Luck!
take 25 points please help me!!!!
one example,for the matrix skew-Hermitian
Answer:
Una matriz hermitiana, o también llamada matriz hermítica, es una matriz cuadrada con números complejos que tiene la característica de ser igual a su traspuesta conjugada.
A=A^*
Donde A^* es la matriz traspuesta conjugada de A.
Step-by-step explanation
Ejemplo de matriz hermitiana de orden 2×2
₍ 5............. 3+7i₎
₍3-7i .............2
₎
Ejemplo de matriz hermitiana de dimensión 3×3
(3............2-i......-5i)
(2+i............0.....9-5i)
(5i.........9+5i.....6)
Is the question ''how many cars were sold each day this month'' statistical or not?
3. Suppose Mark has the following utility function: U(x,y)=min{2x,3y}. a. What is the utility of bundle (4,6) ? What is the utility of bundle (4,8) ? b. Draw the indifference curve that passes through the bundle (4,8). 4. Suppose Rob has the following utility function: U(x,y)=3x+2y. a. What is the utility of bundle (3,4) ? b. Draw the indifference curve that passes through the bundle (3,4).
The utility of bundle (4,6) for Mark, given the utility function U(x,y) = min{2x, 3y}, is 12.
the utility of bundle (4,8) for Mark is also 12.
For Rob's utility function U(x,y) = 3x + 2y, the utility of bundle (3,4) is 17.
The utility of bundle (4,6) for Mark, given the utility function U(x,y) = min{2x, 3y}, is 12. The utility is determined by taking the minimum value between 2 times the quantity of good x (2x) and 3 times the quantity of good y (3y). In this case, 2 times 4 is 8, and 3 times 6 is 18. Since the minimum value is 8, the utility of bundle (4,6) is 8.
Similarly, the utility of bundle (4,8) for Mark is 12. Again, we compare 2 times 4 (8) with 3 times 8 (24). The minimum value is 8, resulting in a utility of 8 for the bundle (4,8).
For the second part of the question, we'll now consider Rob's utility function: U(x,y) = 3x + 2y. The utility of bundle (3,4) for Rob can be calculated as follows: 3 times 3 (9) plus 2 times 4 (8), which equals 17. Therefore, the utility of bundle (3,4) for Rob is 17.
Indifference curves represent combinations of goods that yield the same level of utility for an individual. Since the utility function U(x,y) = 3x + 2y is a linear function, the indifference curve passing through the bundle (3,4) will be a straight line with a negative slope.
It implies that as one good increases, the other must decrease in a specific ratio to maintain the same level of utility. By plotting different bundles that yield the same utility level of 17, we can draw the indifference curve through the point (3,4).
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The graph of f(x) consists of 14 points. Six of the points lie in Quadrant I of the coordinate plane. If f(x) is an odd function, what is the greatest number of points that can lie in Quadrant ll
A. one
B. two
C. six
D. eight
The greatest number of points that can lie in Quadrant ll is one.
Option A. is correct.
What is a Function?A mathematical phrase, rule, or law that establishes the link between an independent variable and a dependent variable (the dependent variable).
As per the given data:
Number of points in graph of f(x) = 14
Number of points in quadrant I = 6
f(x) is an odd function.
As f(x) is an odd function, it will have a rotational symmetry about the origin.
∴ f(-x) = -f(x)
Number of points in quadrant I = 6
All the points in the graph of f(x) in quadrant I will be reflected in
quadrant III.
Number of points in quadrant III = 6
Remaining points = 14 - (6 + 6) = 2
Hence, if all the remaining points of the graph of f(x) are in quadrant IV they will be reflected in quadrant II.
Points that can lie in quadrant ll = 1
Hence, the greatest number of points that can lie in Quadrant ll is one.
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Use the properties of operations to multiply the expressions. 2x(5 - 0.4x)
The multiplied form of the Algebraic expression is 10x -0.8\(x^{2}\)
What is an Algebraic expression?An algebraic expression is a mathematical statement that contains a combination of numbers, symbols, variables and mathematical operators.
These expressions may be linear, quadratic or polynomials and the numbers in front of each term is called coefficient while the symbols or letters are called variable
2x( 5 - 0.4x)
we multiply each term in the bracket by 2x
2x x 5 - 2x x 0.4x = 10x - 0.8\(x^{2}\)
In conclusion, 2x(5 - 0.4x) reduces to 10x - 0.8\(x^{2}\)
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please help Ik 14 is right I need help ASAP
Answer:
the first one is 14
the second one is -14 (NEGATIVE not positive)
the third one is 67
Step-by-step explanation:
IM A F*U*C*K*I*N*G GENIUS
lm.ao
I need help with all of these answers
The following graph shows sales at the Used Book Fundraiser at Garfield Elementary. Use it
to answer the following questions.
What is the unit rate?
How did you determine that?
Analyze the point that is given on the graph. What does this point represent in the context of
the situation?
.
The unit rate is equal to 3 dollars per book.
The unit rate can be determined by dividing the total amount of money raised by the number of books sold.
In the context of the situation, the point (6, 18) means 6 books were sold to raise a total amount of $18.
What is the unit rate?In Mathematics, the unit rate is sometimes referred to as unit price and it can be defined as the price that is being charged by a seller for the sale of a single unit of product.
How to determine the unit rate?In order to determine the unit price, we would use the following mathematical expression;
Unit price = Total raised/Number of books sold
Unit price = 6/2 = 12/4 = 18/6 24/8
Unit price = 3 dollars per book.
In conclusion, we can reasonably infer and logically deduce that the point (2, 6) means 2 books were sold at Garfield Elementary to raise a total amount of $6.
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