Answer:
C: 12/45
Step-by-step explanation:
You have to divide the numerator and the denominator by the same number, and if once you divide it you get the fraction then it's the right answer. So lets take 12/45 and try it.
12/3 =4
45/3 =15
4/15
the upper class represents just 1 percent of the u.s. population, but it has more wealth than the entire bottom 90 percent.
The upper class in the U.S. represents only 1% of the population but possesses more wealth than the entire bottom 90%.
This staggering statistic highlights the extreme wealth inequality in the United States. The upper class, consisting of the wealthiest individuals and families, controls a disproportionately large share of the nation's wealth. This concentration of wealth can have significant implications for social and economic dynamics.
The wealth gap between the upper class and the rest of the population has wide-ranging consequences. It can perpetuate a cycle of privilege and disadvantage, as individuals from lower socioeconomic backgrounds may face limited opportunities for upward mobility. The concentration of wealth can also impact political power and influence, as those with significant resources may have greater access to decision-making processes.
Addressing wealth inequality is a complex challenge that requires a multifaceted approach. Policy measures such as progressive taxation, investment in education and skills training, and social safety nets can help mitigate the disparities and create a more equitable society. Additionally, promoting inclusive economic growth and reducing barriers to wealth accumulation for marginalized communities are essential for achieving a fairer distribution of resources.
Understanding and acknowledging the magnitude of wealth concentration among the top 1% is crucial for fostering a society that strives for economic fairness and opportunities for all its citizens.
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find the exact values of the sine, cosine, and tangent of the angle. 255° = 300° − 45°
The exact values of the sine, cosine, and tangent of the angle 255° are -1/√2, 1/√2, and -1, respectively.
To find the exact values of the sine, cosine, and tangent of the angle 255°, we can use the identity that relates the trigonometric functions of an angle to the trigonometric functions of its complement.
By expressing 255° as the sum of 300° and -45°, we can determine the exact values of the trigonometric functions for the given angle.
We know that the sine, cosine, and tangent of an angle are periodic functions, repeating every 360 degrees. To find the exact values of the trigonometric functions for 255°, we can express it as the sum of 300° and -45°, where 300° is a multiple of 360°.
Since the sine, cosine, and tangent functions are odd or even functions, we can use the values of the trigonometric functions for 45° to determine the values for -45°.
For 45°:
sin(45°) = cos(45°) = 1/√2
tan(45°) = 1
Since cosine is an even function, cos(-45°) = cos(45°) = 1/√2.
Since sine is an odd function, sin(-45°) = -sin(45°) = -1/√2.
Using the definition of tangent as the ratio of sine to cosine, tan(-45°) = sin(-45°) / cos(-45°) = (-1/√2) / (1/√2) = -1.
Therefore, for the angle 255°:
sin(255°) = -1/√2
cos(255°) = 1/√2
tan(255°) = -1
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Please HELP!!!!
will give brainliest!!
Answer:
Original equation:
y = a sin(b(θ -c)) + d
a = vertical dilation (stretch) of the amplitude
b = horizontal compression (shrink) of the period
c = horizontal shift (left/right)
d = vertical shift (up/down)
Your function is:
y = 3 sin(3θ + π) - 2
First, put it into the general from by factoring out the three in the argument of the sine:
y = 3 sin(3(θ + π/3)) - 2
a = vertical (amplitude) dilation = 3
b = horizontal (period) compression = 2π/period = 3
c = horizontal shift = π/3 to the left
d = vertical shift = -2
Marty’s bike ride is represented by the graph shown on the right.
What is Marty’s average speed? Explain how you arrived at this answer.
Marty’s average speed: ________________
Answer:
10 m/h
Step-by-step explanation:
By finding the slope of the line you find how fast he is traveling
y=−2x−5 y=2x−2
Answer:
work is shown and pictured
What is the arc measure, in degrees, of major arc \stackrel{\large{\frown}}{ADC} ADC ⌢ A, D, C, start superscript, \frown, end superscript on circle PPP below?
Answer:
\(\stackrel{\large{\frown}}{ADC} = 186^{\circ}\)
Step-by-step explanation:
Given
See attachment
Required
Determine the measure of \(\stackrel{\large{\frown}}{ADC}\)
\(The\ sum\ of\ angles\ in\ a\ circle\ is\) \(360^{\circ}\).
So, we have:
\(\stackrel{\large{\frown}}{ADC} + \stackrel{\large{\frown}}{APB} + \stackrel{\large{\frown}}{BPC} = 360^{\circ}\)
Where:
\(\stackrel{\large{\frown}}{APB} = 70^{\circ}\)
\(\stackrel{\large{\frown}}{BPC} = 104^{\circ}\)
Substitute these values in the above equation.
\(\stackrel{\large{\frown}}{ADC} + 70^{\circ} +104^{\circ} = 360^{\circ}\)
\(\stackrel{\large{\frown}}{ADC} + 174^{\circ} = 360^{\circ}\)
Collect Like Terms:
\(\stackrel{\large{\frown}}{ADC} = 360^{\circ} - 174^{\circ}\)
\(\stackrel{\large{\frown}}{ADC} = 186^{\circ}\)
Answer:
186 is correct on khan academn=y
If 1st number is a series of consecutive odd numbers is 6 less than the last one in the series, how many numbers are there is the series.
Let's call the first number in the series "x", and the last number in the series "y".
We know that the series is a consecutive series of odd numbers, and we also know that y is 6 less than the last number in the series.
Since the series is a consecutive series of odd numbers, we can say that the difference between any two consecutive numbers in the series is 2.
So, we can write an equation to represent this information:
y = x + (n-1) * 2
where n is the number of numbers in the series.
We also know that y is 6 less than the last number in the series, so we can add this information to our equation:
y = x + (n-1) * 2 - 6
To solve for n, we can rearrange the equation:
n = (y - x + 6) / 2 + 1
Now, if we know the value of x and y we can substitute them in the equation and find the number of terms in the series.
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What is an equation of the line that passes through the point (−3,−1) and is perpendicular to the line x-2y=6?
keeping in mind that perpendicular lines have negative reciprocal slopes, let's check for the slope of the equation above
\(x-2y=6\implies -2y=-x+6\implies y=\cfrac{-x+6}{-2} \\\\\\ y-\cfrac{-x}{-2}+\cfrac{6}{-2}\implies y=\stackrel{\stackrel{m}{\downarrow }}{\cfrac{1}{2}}x-3\qquad \impliedby \begin{array}{|c|ll} \cline{1-1} slope-intercept~form\\ \cline{1-1} \\ y=\underset{y-intercept}{\stackrel{slope\qquad }{\stackrel{\downarrow }{m}x+\underset{\uparrow }{b}}} \\\\ \cline{1-1} \end{array} \\\\[-0.35em] ~\dotfill\)
\(\stackrel{~\hspace{5em}\textit{perpendicular lines have \underline{negative reciprocal} slopes}~\hspace{5em}} {\stackrel{slope}{\cfrac{1}{2}} ~\hfill \stackrel{reciprocal}{\cfrac{2}{1}} ~\hfill \stackrel{negative~reciprocal}{-\cfrac{2}{1}\implies -2}}\)
so we're really looking for the equation of a line whose slope is -2 and that it passes through (-3 , -1)
\((\stackrel{x_1}{-3}~,~\stackrel{y_1}{-1})\hspace{10em} \stackrel{slope}{m} ~=~ - 2 \\\\\\ \begin{array}{|c|ll} \cline{1-1} \textit{point-slope form}\\ \cline{1-1} \\ y-y_1=m(x-x_1) \\\\ \cline{1-1} \end{array}\implies y-\stackrel{y_1}{(-1)}=\stackrel{m}{- 2}(x-\stackrel{x_1}{(-3)}) \implies y +1= -2 (x +3) \\\\\\ y+1=-2x-6\implies {\Large \begin{array}{llll} y=-2x-7 \end{array}}\)
Find the Z-scores that separate the middle 56% of the distribution from the area in the tails of the standard normal distribution.
The z score that separate the middle 56% of the distribution from the area in the tails of the standard normal distribution is ±0.77.
Given that the z score separates the 56% of the distribution from the area in the tails of the standard normal distribution.
In a normal distribution in with mean μ and standard deviation σ, the z score of a measure X is as under:
Z=(X-μ)/σ
It is used to measure how many standard deviations the measure is from the mean.
After finding the z score we have to look at the z score table and find the p value associated with this z score, which is the percentile of X.
The normal distribution is symmetric which means that the middle 56% is between the 11th and 67th percentile. Looking at the z table the z scores are Z=±0.77.
Hence the z score that separate the middle 56% of the distribution from the area in the tails of the standard normal distribution is ±0.77.
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Sketch the graph of y = x squared + 2 x minus 15 using your graphing calculator. What are the x-intercepts of this graph?
The x-intercepts of the graph are -5 and 3.
There are a few steps involved in sketching the graph and finding the x-intercepts. Here are the steps:
Step 1: Turn on your graphing calculator and enter the equation y = x^2 + 2x - 15. Make sure to use the "^" symbol to indicate exponents.
Step 2: Once you have entered the equation, press the graph button to see the graph on your screen. You should see a parabola (a U-shaped curve) that opens upwards.
Step 3: Take a closer look at the graph and try to estimate the x-intercepts. These are the points where the graph crosses the x-axis, meaning that y = 0 at those points. To estimate the x-intercepts, you can look for the points where the graph touches or crosses the x-axis. You can also use the trace function on your calculator to get more accurate values.
Step 4: To find the x-intercepts more precisely, you can use the quadratic formula. The quadratic formula is:
x = (-b ± sqrt(b^2 - 4ac)) / 2a
In this case, the equation is y = x^2 + 2x - 15, which means that a = 1, b = 2, and c = -15. Plugging these values into the quadratic formula, we get:
x = (-2 ± sqrt(2^2 - 4(1)(-15))) / 2(1)
Simplifying this expression, we get:
x = (-2 ± sqrt(64)) / 2
x = (-2 ± 8) / 2
x = -5 or 3
So the x-intercepts of the graph are -5 and 3.
Step 5: Once you have found the x-intercepts, you can mark them on the graph by drawing vertical lines through those points. This will help you visualize the shape of the parabola and understand how it intersects with the x-axis.
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$51,033
An electronics wholesaler must sell at least $4000 worth of computers and printers per day to stay profitable. Each printer costs
$300 and each computer costs 5900. The store can ship a maximum of 25 items per day. If c represents the number of computers
and p represents the number printers, which THREE statements are correct?
Pls help
Answer:
A,B,D
Step-by-step explanation:
(A) is correct because 5*900+15*300>4000
(B) is correct because 15*900+5*300>4000
(D) is correct because C+P must be less than or equal to 25
BRAINLIEST FOR CORRECT ANSWER!! Kenny leaves home and walks 10 blocks east and 24 blocks north to get to the movie theater. How far is the movie theater from Kenny’s home if he were to take a direct path?
Answer:
8.568cm
Step-by-step explanation:
IF Kenny leaves home and walks 10 blocks east and 24 blocks north to get to the movie theater, his distance from home to the theatre is gotten using the pythagoras theorem as shown;
d² = 23² + 10²
d² = 529 + 100
d² = 629
d = √629
d = 8.568
Hence the required distance is 8.568cm
(-2,19)(10,-11) find the slope
Answer:
-5/2
Step-by-step explanation:
Slope = \(\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\\\\\)
\(= \frac{-11-19}{10-[-2]}\\\\=\frac{-30}{10+2}\\\\=\frac{-30}{12}\\\\=\frac{-5}{2}\)
L Pretest: Unit 3
Question 6 of 20
If f(x) = 4x - 3 and g(x) = x + 4, find (f - g)(x).
CA. 5x - 7
B. 3x-7
C. 5x-1
OD. 7 - 3x
SUBMIT
The solution is : (f + g)(x) = x² + 4x - 4 ⇒ B, is the required function.
What is function?Function, in mathematics, an expression, rule, or law that defines a relationship between one variable (the independent variable) and another variable.
here, we have,
Let us solve the question
∵ f(x) = 4x + 4
∵ g(x) = x² - 6
→ We need to find (f + g)(x) which means f(x) + g(x)
∴ (f + g)(x) = f(x) + g(x)
∵ f(x) + g(x) = (4x + 2) + (x² - 6)
∴ f(x) + g(x) = 4x + 2 + x² - 6
→ Add the like terms
∵ f(x) + g(x) = 4x + x² + (2 - 6)
∴ f(x) + g(x) = 4x + x² + (-4)
→ Remember (+)(-) = (-)
∴ f(x) + g(x) = 4x + x² - 4
→ Arrange the terms from greatest power of x
∴ f(x) + g(x) = x² + 4x - 4
∴ (f + g)(x) = x² + 4x - 4, is the required function.
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3.
Ms. Bringas went to staples to buy hand sanitizer. They were $1 each. She
purchased 24 bottles. She got a teacher discount of 10% what was her final price?
Original Cost:
Discount:
New Price:
In the figure, point C is the midpoint of (A/E) Use the figure to answer the questions.
Avery says that AbC /DeC by the ASA congruence postulate. Do you agree or disagree Explain?
Suppose it is also known that point C is also the midpoint of (B/D Which postulate or theorem can be used to prove that aBC/DeC? Justify your answer.
Answer:
Disagree ΔABC ≅ ΔDEC by ASA butt by SAS
Step-by-step explanation:
point C is the midpoint of (A/E), C is also the midpoint of (B/D )
BC = CD and AC = CE
∠BCA = ∠ECD
ΔABC ≅ ΔDEC by SAS not by ASA
please help me this is due tomorrow
Answer:
Step-by-step explanation:
This graph represents the line of best fit for some dataset.
It is reduced to a linear function in this instance with a constant slope, where x represents the independent variable and y, the dependent variable. This shows us quiz score is supposedly directly proportional to the time spent on homework per week in hours.
To find the amount of time someone should expect to study to get a 96% on their quiz you need to resolve the linear function modeled by y=mx+b which is in slope-intercept form. where m is the slope and b is the y-intercept. the y-intercept can be found when x = 0 which is shown in the graph to be 63, to solve for slope you can use the equation \(\frac{y_{2}-y_{1} }{x_{2}-x_{1} }\) which is rise/ run. then plug in any 2 points I will use (1,69) and (2,75) \(\frac{75-69 }{2-1 }\) or 6 which means m = 6, therefore, our equation is y = 6x + 63 and because we know that y must be 96 for this question, we can solve for x using inverse operations. 96 = 6x + 63 subtract 63 from both sides and 6x = 33 then divide by 6 and 33/6 = 5.5 so a person should expect to study 5.5 hours to get a quiz score of 96%
find an equation of the plane through the point and perpendicular to the line
To find an equation of a plane through a given point and perpendicular to a given line, you can follow these steps:
1. Find the direction vector of the given line. This can be done by subtracting the coordinates of any two points on the line. Let's denote this vector as "d".
2. Find the normal vector of the plane. Since the plane is perpendicular to the line, its normal vector will be the same as the direction vector of the line. So, the normal vector of the plane is "d".
3. Use the coordinates of the given point on the plane to find the equation of the plane. Let's denote the coordinates of the point as (x₀, y₀, z₀).
The equation of the plane can be written as:
Ax + By + Cz = D,
where A, B, C are the components of the normal vector "d", and x, y, z are the variables representing any point on the plane.
To find the values of A, B, C, and D, substitute the coordinates of the given point into the equation:
A(x₀) + B(y₀) + C(z₀) = D.
Therefore, the equation of the plane through the given point and perpendicular to the line is:
d₁(x - x₀) + d₂(y - y₀) + d₃(z - z₀) = 0,
where (d₁, d₂, d₃) are the components of the direction vector "d" of the line, and (x₀, y₀, z₀) are the coordinates of the given point.
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Find the equation of the plane passing through the point (−1,3,2) and perpendicular to each of the planes x+2y+3z=5 and 3x+3y+z=0.
Besides being simple for its own sake, what other advantage do simple models usually have?
a) Higher accuracy
b) Greater complexity
c) Easier interpretation
d) More detailed predictions
The correct option is c) Easier interpretation. One of the main advantages of simple models is their ease of interpretation. Simple models tend to have fewer parameters and less complex mathematical equations, making it easier to understand and interpret how the model is making predictions.
This interpretability can be valuable in various domains, such as medicine, finance, or legal systems, where it is important to have transparent and understandable decision-making processes.
Complex models, on the other hand, often involve intricate relationships and numerous parameters, which can make it challenging to comprehend the underlying reasoning behind their predictions. While complex models can sometimes offer higher accuracy or make more detailed predictions, they often sacrifice interpretability in the process.
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PLEASE HURRY!!!!!!!!!!!!!!!!!!!!!!!!!!!Which statement is true of the function f(x) = -3/? Select three options.
The function is always increasing.
The function has a domain of all real numbers.
The function has a range of {v|-
The function is a reflection of y = 37x.
The function passes through the point (3,-27).
Answer:
the function has a domain of all real answers
the function passes through the point (3,-27)
Step-by-step explanation:
a researcher wants to make a 95% confidence interval for the mean amount of time middle school students take to finish reading a book. if it is known that the standard deviation of reading time is 4.5 days , and the researcher wants to be within 0.5 days of the population mean, what sample size should the researcher use to conduct this research?
The researcher should use a sample size of approximately 312 middle school students to conduct the research.
To determine the sample size needed for the researcher to create a 95% confidence interval with a margin of error of 0.5 days, we can use the formula:
\(\[ n = \left(\frac{Z \cdot \sigma}{E}\right)^2 \]\)
Where:
- \(\( n \)\) is the sample size
- \(\( Z \)\) is the z-score corresponding to the desired confidence level (for 95% confidence, Z is approximately 1.96)
- \(\( \sigma \)\) is the known standard deviation of the population
- \(\( E \)\) is the desired margin of error
Plugging in the values, we get:
\(\[ n = \left(\frac{1.96 \cdot 4.5}{0.5}\right)^2 \]\)
To solve the equation for the required sample size, we can substitute the given values into the formula:
\(\[ n = \left(\frac{1.96 \cdot 4.5}{0.5}\right)^2 \]\)
Calculating this expression gives us:
\(\[ n = \left(\frac{8.82}{0.5}\right)^2 \]\)
\(\[ n = (17.64)^2 \]\)
\(\[ n \approx 311.1696 \]\)
Therefore, the researcher should use a sample size of approximately 312 middle school students to conduct the research.
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cindy is projecting her earnings to be $90,000, taxable income of $65,500, and has calculated that she will owe $8,902. what is her average tax rate?
Cindy's average tax rate is approximately 13.59%.
To calculate Cindy's average tax rate, we divide the total tax paid by her taxable income and then multiply by 100 to express it as a percentage.
Average tax rate = (Total tax paid / Taxable income) * 100
In this case, Cindy's taxable income is $65,500, and she has calculated that she will owe $8,902 in taxes.
Average tax rate = (8,902 / 65,500) * 100
Average tax rate ≈ 13.59%
Therefore, Cindy's average tax rate is approximately 13.59%.
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Cindy is projecting her earnings to be $90,000, a taxable income of $65,500, and has calculated that she will owe $8,902. Her average tax rate is 13.60%.
How to find the average tax rate?
The average tax rate is determined by dividing the total tax paid by the total income earned. The average tax rate is calculated by dividing the total amount of tax paid by the total taxable income.
Average Tax Rate = Total Tax Paid / Taxable Income Cindy's
The average tax rate can be found as follows:
Average tax rate = (Total tax paid ÷ Taxable income) × 100%
Average tax rate = ($8,902 ÷ $65,500) × 100%
Average tax rate = 0.135994 × 100% ≈ 13.60%
Therefore, Cindy's average tax rate is 13.60%.
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write the complex number z = 1 in trigonometric form (sometimes called polar form) express the angle in radians, where 0 <= theta < 2pi
The trigonometric or polar form of a complex number expresses the number in terms of its magnitude and argument. The complex number z = 1 in trigonometric form (polar form) is written as z = 1(cos(0) + i sin(0)), where theta = 0 radians.
The complex number z = 1 can be written in polar form as z = cos(0) + i sin(0), where cos(0) = 1 and sin(0) = 0. Therefore, the magnitude of z is 1, and the argument of z, denoted by theta, is 0 radians since it lies on the positive real axis.
Hence, the trigonometric form of z is z = 1(cos(0) + i sin(0)) = 1(cos(0) + i sin(0)), where 0 <= theta < 2pi. This representation is useful for performing operations on complex numbers, such as multiplication and division, since the operations can be carried out using the magnitude and argument of the numbers.
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It's the end of the budgeting period for a person and he has $450 left in his budget for car rental expenses. He plans to spend this budget on a sales trip throughout a city. He will rent a car that costs $45 per day and 0.25 per mile and he can spend no more than $450
The person can rent the car for 5 days and drive a maximum of 1800 miles within the $450 budget.
To determine the number of days the person can rent the car, we divide the remaining budget of $450 by the daily rental cost of $45. This gives us 10, indicating that the person can rent the car for up to 10 days. However, the goal is to spend the entire budget, so renting the car for the maximum number of days would exceed the budget.
Next, we need to calculate the maximum distance the person can drive within the budget. Since the cost is $0.25 per mile, we divide the remaining budget by $0.25 to find the maximum number of miles. This results in 1800 miles.
Therefore, the person can rent the car for 5 days and drive a maximum of 1800 miles within the $450 budget. By renting the car for 5 days and driving within this mileage limit, the person will spend the entire budget without exceeding it.
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convolution, Fourier series representation problems
w 32. Use the convolution theorem to solve the integral equation: y(t) = ? + - sinhít – sinh(t - A)g()dx 33. Find the Fourier series representation of f(x) given that f(x) = -{: -1, - < x < 0 , 0
32. Solving integral equation using the convolution theoremThe convolution theorem states that the convolution of two signals in the time domain is equivalent to multiplication in the frequency domain.
Therefore, to solve the given integral equation using the convolution theorem, we need to take the Fourier transform of both sides of the equation.
y(t) = ∫_{-∞}^{∞} sinh(−)g() + ∫_{-∞}^{∞} sinh(−−)g()Taking the Fourier transform of both sides, we haveY() = 2π[G()sinh() + G()sinh(−)]where Y() and G() are the Fourier transforms of y(t) and g(t), respectively.Rearranging for y(t), we gety(t) = (1/2π) ∫_{-∞}^{∞} [G()sinh()+G()sinh(−)]e^(j) d= (1/2π) ∫_{-∞}^{∞} [G()sinh()+G()sinh(−)](cos()+j sin())d= (1/2π) ∫_{-∞}^{∞} [G()sinh()+G()sinh(−)]cos()d+ j(1/2π) ∫_{-∞}^{∞} [G()sinh()+G()sinh(−)]sin()dTherefore, the solution to the integral equation is given by:y(t) = (1/2π) ∫_{-∞}^{∞} [G()sinh()+G()sinh(−)]cos()d + (1/2π) ∫_{-∞}^{∞} [G()sinh()+G()sinh(−)]sin()d
It is always important to understand the principles that govern an integral equation before attempting to solve them. In this case, we used the convolution theorem to solve the equation by taking the Fourier transform of both sides of the equation and rearranging for the unknown signal. The steps outlined above provide a comprehensive solution to the equation. 33. Fourier series representation of f(x)
The Fourier series representation of a periodic signal is an expansion of the signal into an infinite sum of sines and cosines. To find the Fourier series representation of the given signal, we need to first compute the Fourier coefficients, which are given by:an = (1/T) ∫_{-T/2}^{T/2} f(x)cos(nx/T) dxbn = (1/T) ∫_{-T/2}^{T/2} f(x)sin(nx/T) dxFurthermore, the Fourier series representation is given by:f(x) = a_0/2 + Σ_{n=1}^{∞} a_n cos(nx/T) + b_n sin(nx/T)where a_0, a_n, and b_n are the DC and Fourier coefficients, respectively. In this case, the signal is given as:f(x) = -1, -π
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of undetermined coefficients to solve (a) y' – 4y = 16xe -2x + 8x + 4 8r +4 . (b) . Y' – Y = (2x + xe2+ 22,21 & y'y = + +
To solve the given differential equations using the method of undetermined coefficients, we need to find a particular solution that satisfies the non-homogeneous equation. So, the general solution is given by: (a) y = y_h + y_p = Ce^(4x) + (-x - 4xe^(-2x) + 8x^2 - 1)e^(-2x) + 8x - 1, (b) y = y_h + y_p = Ce^x + (-x + 22.21e^x)
Let's solve each equation separately:
(a) y' - 4y = 16xe^(-2x) + 8x + 4
Step 1: Solve the associated homogeneous equation:
The homogeneous equation is y' - 4y = 0, which has the solution y_h = Ce^(4x), where C is a constant.
Step 2: Track down a specific non-homogeneous equation solution:
Since the non-homogeneous term contains terms like xe^(-2x) and x, we assume a particular solution of the form:
y_p = (A + Bx)e^(-2x) + Cx + D
Differentiating y_p, we have:
y'_p = (-2A + B - 2Bx)e^(-2x) + C
Substituting y_p and y'_p into the original equation, we get:
(-2A + B - 2Bx)e^(-2x) + C - 4((A + Bx)e^(-2x) + Cx + D) = 16xe^(-2x) + 8x + 4
Matching coefficients of like terms on both sides, we get:
-2A + B - 4A - 4D = 0 (coefficients of e^(-2x))
-2B - 4C = 16x (coefficients of xe^(-2x))
-2A + C = 8x (coefficients of x)
-4D = 4 (constant term)\
Solving these equations, we find A = -1, B = -4, C = 8, and D = -1.
Therefore, the particular solution is:
y_p = (-x - 4xe^(-2x) + 8x^2 - 1)e^(-2x) + 8x - 1
The general solution is given by:
y = y_h + y_p = Ce^(4x) + (-x - 4xe^(-2x) + 8x^2 - 1)e^(-2x) + 8x - 1
(b) y' - y = (2x + xe^2) + 22,21
Step 1: Solve the associated homogeneous equation:
The homogeneous equation is y' - y = 0, which has the solution y_h = Ce^x, where C is a constant.
Step 2: Track down a specific non-homogeneous equation solution:
Since the non-homogeneous term contains terms like 2x, xe^2, and 22.21, we assume a particular solution of the form:
y_p = Ax + B + Cx^2 + De^x
Differentiating y_p, we have:
y'_p = A + C + 2Cx + De^x
Substituting y_p and y'_p into the original equation, we get:
(A + C + 2Cx + De^x) - (Ax + B + Cx^2 + De^x) = (2x + xe^2) + 22.21
Matching coefficients of like terms on both sides, we get:
A - Ax = 2x + xe^2 (coefficients of x)
C - Cx^2 = 0 (coefficients of x^2)
C + D = 22.21 (constant term)
According to the first equation, A = -1.
From the second equation, we have C = 0.
Substituting A = -1 and C = 0 into the third equation, we get D = 22.21.
Therefore, the particular solution is:
y_p = -x + 22.21e^x
The general solution is given by:
y = y_h + y_p = Ce^x + (-x + 22.21e^x)
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In terms of the number of marked mountain goats, what is the relative frequency for male goats, female goats, adult goats, and baby goats? Write your answers as simplified fractions.
Answer:
Female: 93/328
Adult: 103/328
Baby: 61/328
Step-by-step explanation:
71 + 93 + 103 + 61 = 328
Male: 71/328
Female: 93/328
Adult: 103/328
Baby: 61/328
1 out of 7 questions. PLEASE help me.
a. A central angle is: angle GFH; b. A major arc is: arc GJH; c. A minor arc is: arc GH.
d. measure of arc GJH = 265°; e. measure of angle GH = 95°
What is a major Arc and a Minor Arc?A major arc is an arc of a circle that measures greater than or equal to 180 degrees. It is sometimes called a large arc or a wide arc. If a circle has a central angle that measures more than 180 degrees, then the corresponding arc is a major arc.
On the other hand, a minor arc is an arc of a circle that measures less than 180 degrees. It is also called a small arc or a narrow arc. If a circle has a central angle that measures less than 180 degrees, then the corresponding arc is a minor arc.
Using the information given, we have:
a. A central angle in the figure given is: angle GFH.
b. A major arc in the figure given is: arc GJH.
c. A minor arc in the figure given is: arc GH.
d. measure of arc GJH = 360 - measure of arc GH
Measure of arc GH = measure of angle GFH = 95°
Therefore:
measure of arc GJH = 360 - 95 = 265°.
e. measure of angle GH = 95°
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Solve for g. 3/16 = (-5/4) + g
Answer:
g = 23/16
Step-by-step explanation:
3/16 = (-5/4) + g
Add 5/4 on both sides.
3/16 + 5/4 = g
Make denominators equal and add.
3/16 + 20/16 = g
23/16 = g
Histograms in mathh
I need help with it because I am clueless!