The Bernoulli differential equation is a nonlinear ordinary differential equation of the form:
dy/dx + P(x)y = Q(x)y^n, where n ≠ 0, 1.
For n = 0 or n = 1, the equation is linear. For other values of n, a common technique to linearize the equation is to make the substitution y = v^(-1/n-1). The resulting equation is:
dv/dx + (P(x) + Q(x)/v^(1/n-1)) * (1/n-1) * v^(1/n-2) * dv/dx = 0.
For the initial value problem given, we have P(x) = -1/x, Q(x) = -5, and n = 2.
We make the substitution y = v^(-1), so v = y^(-1), and dv/dx = -y^(-2)dy/dx. The equation becomes:
-y^(-2)dy/dx + (-1/x - 5y^2) = 0.
We have the initial condition y(1) = 1/5. In terms of v, the initial condition becomes v(1) = 1/(1/5)^2 = 25.
Now, the differential equation is linear, and we can solve it using standard methods, such as separation of variables. To find the solution that satisfies the initial condition, we may use numerical methods such as the Euler method or Runge-Kutta method.
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1 ten is 10 times as much as
Answer: AS 1
Step-by-step explanation:
If the nominal interest rate is 9% and the real rate of interest is 2%, what is the expected rate of inflation? Be precise (4 decimal places). [Hint: (1 + krf) = (1 + k*)(1 + IRP)]
The expected rate of inflation is 0.068627 or 6.86%.
Real Rate of return:
The real rate of return defines the actual amount of return earned by an investment. Inflation reduces the real rate of return, so investor tries to invest in securities that could fetch more return than inflation.
The general formula of the inflation rate is:
[tex]IR=\frac{1+R_1}{1+R_2} -1[/tex]
Given information is that
Nominal rate of return(R1)=9%
Real rate of return(R2)=2%
Now substitute these values in the above formula:
[tex]IR=\frac{1+R_1}{1+R_2} -1\\\\IR=\frac{1+0.09}{1+0.02} -1[/tex]
IR=1.068627-1
IR=0.068627 or 6.86%
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State whether the value for the unknow
1. 125 < 12x
x = 10
2.
The value for the unknow x cannot be equal to 10.
How can we prove it ?The value of x in the first equation is not equal to 10. To see this, we can substitute x = 10 into the equation:
125 < 12 * 10 = 120
Since 125 is not less than 120, the inequality is false when x = 10. Therefore, x cannot be equal to 10.
What is simultaneous equation ?A simultaneous equation is a set of two or more equations that contain two or more variables, and all the equations in the set are solved together to find the values of the variables.
Simultaneous equations can be represented graphically as intersecting lines or curves in a coordinate plane. The solution to a set of simultaneous equations is a set of values for the variables that satisfies all the equations in the set.
Simultaneous equations can be solved using various methods such as substitution, elimination, or matrices. The solution to the equations can provide information about the relationships between the variables in a given problem, and can be used to make predictions or find the unknown values in a real-world scenario.
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Maria's mean jump last year was 46.8 in. with a MAD of 1.5 in. Her mean jump
this year is 49.9 in. with a MAD of 1.6 in. Express the difference in means as a
multiple of the MAD for each data set. Show your work.
Therefore , the solution of the given problem of deviation comes out to be
MAD mean = 1.55.
What is the difference in means as a multiple of MAD?The difference between their means can be estimated by subtracting it from the mean absolute deviation of the two datasets.
The average distance between each data value and the mean is known as a collection of data's mean absolute deviation (MAD).
Here,
Given :
=> Previous year : 46.8 in. with a MAD of 1.5 in
=> Last year : 49.9 in. with a MAD of 1.6 in.
=>Mean = 46.8 +49.9 /2 = 48.35
=> MAD mean = 1.5 + 1.6 = 1.55
The average of each point's "positive distances" from the mean is the mean absolute deviation. The degree of data variability increases with the MAD (the data is more spread out).
Each digit in the data set should be taken, the mean subtracted, and the absolute value calculated. Take the total of the absolute values next. Next, divide the aforementioned sum by the total number of values in the data set to obtain the mean absolute deviation.
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Let y have the following probability distribution: 15-X f (x) == (15- , *)* (*)**,x= 0,1,2,--, 15 Find the variance of x (write it up to first decimal place).
The variance of x is 258.2, rounded to the first decimal place.
The variance of a discrete probability distribution with values x and corresponding probabilities f(x) is given by the formula:
Var(x) = Σ[x^2 × f(x) - (Σ[x × f(x)])^2]
To find the variance of x, we need to first find the mean of x, which is given by the formula:
mean(x) = Σ[x × f(x)]
Using the given probability distribution f(x), we can calculate the mean and variance as follows:
mean(x) = Σ[x × f(x)] = 0 × (15!/0!(15-0)!) × (1/5)^0 × (4/5)^(15-0) + 1 × (15!/1!(15-1)!) × (1/5)^1 × (4/5)^(15-1) + 2 × (15!/2!(15-2)!) × (1/5)^2 × (4/5)^(15-2) + ... + 15 × (15!/15!(15-15)!) × (1/5)^15 × (4/5)^(15-15) = 15 × (1/5) = 3
Var(x) = Σ[x^2 × f(x) - (Σ[x × f(x)])^2] = 0^2 × (15!/0!(15-0)!) × (1/5)^0 × (4/5)^(15-0) + 1^2 × (15!/1!(15-1)!) × (1/5)^1 × (4/5)^(15-1) + 2^2 × (15!/2!(15-2)!) × (1/5)^2 × (4/5)^(15-2) + ... + 15^2 × (15!/15!(15-15)!) × (1/5)^15 × (4/5)^(15-15) - (mean(x))^2 = 267.2 - (3)^2 = 267.2 - 9 = 258.2
The variance of x is 258.2, rounded to the first decimal place.
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Need help ASAP will give brainliest
Step-by-step explanation:
a scientific number like 8.14 × 10^-7 is simply a form of
a × b
all operations with scientific numbers base on this.
multiplication :
(a × b) × (c × d) = a × b × c × d
or any other combination, as multiplication is commutative.
e.g. a × c × b × d
if it helps with a better understanding and the combination of factors of the same base.
addition :
(a × b) + (c × d)
this cannot be simplified per se.
we need to bring factors of both terms to the same base in order to be able to add them.
so,
part A
the area of a rectangle is
length × width
so, we have
8.14 × 10^-7 × 3.6 × 10^-9
as explained above, to make this better visible we combine factors of the same base :
8.14 × 3.6 × 10^-7 × 10^-9
remember, when multiplying factors of the same base, we simply add the exponents :
10^-7 × 10^-9 = 10^(-7 + -9) = 10^-16
and
8.14 × 3.6 = 29.304
so, the total result is
29.304 × 10^-16 m²
part B
a scientific number has exactly one significant digit (not 0) in front of the decimal point, and all other significant digits after the decimal point.
so, what do we need to convert
29.304 × 10^-16
to that ?
we need to divide the left part by 10. but to keep the value of the total number unchanged, we then need to multiply the right part by 10. in other words, we multiply by 10/10.
and we get
2.9304 × 10^-15 m²
part C
the perimeter of a rectangle is
2×length × 2×width
2×8.14×10^-7 + 2×3.6×10^-9
the first step is easy : simplifying the multiplications by 2.
16.28×10^-7 + 7.2×10^-9
now, we can only add them, if there is the same factor in each term.
and the easiest way to get to that is a manipulation of the 10-factors.
let's bring 10^-7 to 10^-9. that means a division by 100. remember, we need to keep the overall value of the number. what, what we do to one factor we need to counter in the other factor :
16.28×10^-7 = 100/100 × 16.28×10^-7 =
= 100×16.28 × (10^-7)/100 =
= 1628 × 10^-9
now we can add both numbers
1628×10^-9 + 7.2×10^-9 = 1635.2×10^-9 m
part D
remember what we said in part B.
here now we need to divide the left part by 1000. which means we also need to multiply the right part by 1000.
1635.2×10^-9 × 1000/1000 = 1.6352 × 10^-6 m
HELP ASAP answer both for 35 points
The probability that a driver is having a conversation while driving will be 0.3
How to calculate the probabilityProbability simply means the chance that a particular thing or event will happen. It is the occurence of likely events. It is simply the area of mathematics that deals with the numerical estimates of the chance that an event will occur or that a particular statement is true.
The probability that a driver is having a conversation while driving will be:
= Probability of drivers that look at their phone- Those that have conversations
= 0.6 - 0.3
= 0.3
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Three candy bars and one soda costs $5.63
At the same price, one candy bar and four sodas
cost $4.81. How much does a candy bar cost?
Answer: i think 4.81
Step-by-step explanation:
Write down the percentage multiplier to find 26% of an amount.
Answer:
0.26
Step-by-step explanation:
26% divide by 100%. The percentage signs cancel out and when you divide by 100, you move the decimal point two places to the left.
Answer:
0.26
Step-by-step explanation:
What is the decimal multiplier for 26%? The decimal multiplier is 0.26 .
pls, tell me if wrong have a good day/night<3 and remember your beautiful
Work out the equation of the line, which has a gradient of 3 and passes through the point (-1,3)
Answer:
Step-by-step explanation:
The equation of the line can be found using the point-slope form:
y - y1 = m (x - x1)
where m is the gradient, (x1, y1) is a point on the line.
For the given information:
m = 3, x1 = -1, y1 = 3
Plugging in the values into the point-slope form:
y - 3 = 3 (x - (-1))
Simplifying the equation:
y = 3x + 6
So, the equation of the line is: y = 3x + 6
please help me will give u extra points :)
•
Answer:
Ok
Step-by-step explanation:
Select all side lengths that would form a right triangle.
6 inches, 9 inches, 12 inches
9 meters, 40 meters, 41 meters
9 yards. 12 yards, 15 yards
15 miles. 8 miles. 17 miles
53 inches, 28 inches, 45 inches
41 feet, 32 feet, 19 feet
The sides of a right triangle that would form a right triangle is 9 m, 40 m, 41 m. 9 yards. 12 yards, 15 yards and 15 miles. 8 miles. 17 miles
An equation is an expression that shows the relationship between two or more numbers and variables.
Pythagoras theorem states that for a right angled triangle, the sides of the triangle are related to each other using the expression:
(hypotenuse side)² = (adjacent side)² + (opposite side)²
The sides of a right triangle that would form a right triangle is 9 m, 40 m, 41 m, because:
41² = 40² + 9²
Also, 9 yards. 12 yards, 15 yards, because:
15² = 9² + 12²
15 miles. 8 miles. 17 miles, because
17² = 15² + 8²
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11. Identify any potential sources of bias in the following study norder to determine the opinions of people in the 21- to 26-year a researchers survey a random sample of 2500 Army recruits in this age group. age group on controlling ilegal immigration, What sources of bias, if any, might this study have? O A. Selection bias only O B. Participation bias only O C. Selection and participation bias D. There is probably no bias in the study in nna.nr two-sentence stat-byte
This study may have both selection and participation bias. Selection bias occurs when the sample is not randomly selected and not representative of the population of interest.
Participation bias occurs when certain people are more likely to respond to a survey than others. For example, individuals may be more likely to take part in the survey if they have strong opinions on the issue. Additionally, the survey may be limited to those in the 21-to-26-year-old age group in the Army, which may not be fully representative of the entire population's opinions on the issue.
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an envionmental roadside agency conducted a study of a certain states roadsides to estimate
The variable of interest using in this study is the number of bottles/cans per/mile segment. The parameter of interest is the mean number of bottles/cans per one-mile segment of all roads in the state.
About Variable of interestIt's The amount of change that is measured in experimental studies. One or more of these variables, called study factors, are controlled so that data can be obtained about how the factor affects another variable, called the response variable or simply the response.
As an example, consider an experiment designed to determine the effect of three different exercise programs on cholesterol levels in patients with elevated cholesterol levels. Each patient is called the experimental unit, the response variable is the patient's cholesterol level at the end of the program, and the exercise program is the factor that examines the effect on cholesterol levels. Each of the three exercise programs is called a therapy.
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Mike believes the two triangles are congruent because the corresponding angles are congruent. Is Mike correct? Explain your reasoning. '
Answer:
Mike is incorrect.
Step-by-step explanation:
In this figure, corresponding angles are equal. However there is no guarantee that the corresponding sides are equal. For example, ΔDEF may be ΔABC dilated by a scale factor of 10, say. This means the angles will remain the same but the sides will be different
So Mike is incorrect.
10 pts!!
Find the equation of a line parallel to y = 2 that contains the point (4, 1). Write the equation in slope-intercept form.
Explanation:
The equation y = 2 is horizontal. Anything parallel to this will also be horizontal. The answer is of the form y = k, where k is some real number. We replace k with 1 since we need the answer to go through (4,1). All points on the answer line have a y coordinate of 1.
The equation y = 1 is the same as y = 0x+1, which shows we have a slope of 0.
Amy is painting one wall in her dining room. The wall is 10 feet by 13 feet. A gallon of paint covers 60 square feet. The hardware store only sells paint by the gallon, meaning that partial gallons cannot be purchased. Given this, how many gallons of paint will Amy need to purchase
Answer:
3
Step-by-step explanation:
Since the wall is two different lengths, it assumes the wall is a rectangle
Angle of a rectangle is L x W
Which means 10x13 = 130
Since every gallon covers 60 square feet, we need to divide that 130 by 60
(130)/(60) = 2.2
Since they dont sell partial gallons, she would have to buy 3 gallons of paint
In september of 2021, gas cost $3.17 on average in the united states.by june 2022, the cost of gas had increased by 58%.how much did gas cost in june 2022?
The average cost of gas in June 2022 is $5.01
How much did gas cost in june 2022?In September of 2021, gas cost $3.17 on average in the United States.
By June of 2022, the cost of gas had increased by 58%, so we can calculate the increase as:
Increment = 3.17 * 0.58 = 1.84
Adding the increase to the starting price:
3.17 + 1.84 = 5.01
So in June of 2022, gas cost $5.01 on average in the United States.
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Anyone got any idea what this is? Question: What is the rule here? (What is the sum of of the first K numbers) K->____ For the first odd numbers we get K -> ___
The sum of the first K numbers is (K * (K + 1)) / 2
For the first K odd numbers, the formula is K^2
How to determine the formulaFirst K numbers
The formula (K * (K + 1)) / 2 represents the sum of the numbers from 1 to K,
This is so because it counts the total number of dots in the triangle (K * (K + 1)) and then divides by 2 to account for double-counting the dots in the middle row.
So, we have
Sum = (K * (K + 1))/2
Odd numbers
For the sum of the first K odd numbers, we can use the formula K^2.
This formula works because odd numbers can be represented as (2n - 1), where n is a positive integer.
So, the first K odd numbers can be represented as
(2 * 1 - 1) + (2 * 2 - 1) + ... + (2 * K - 1).
Expanding the terms and simplifying, we get K^2.
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The position of an object moving along a line is given by the function
s(t)=−8 t^2 + 24t.
Find the average velocity of the object over the following intervals. a) [1,4]
(b) [1,3]
(c) [1,2]
(d) [1,1+h]
where
h>0 is any real number.
Therefore , the solution of the given problem of velocity comes out to be (-8*(1 + h)² + 24*(1 + h)) - 16 / h
What do you mean by velocity?Velocity is a vector quantity that measures the rate of change of an object's position in space. It is defined as the rate of change of an object's displacement over a specific interval of time .
In physics, velocity is one of the most important quantities used to describe the motion of an object. It is used to calculate the acceleration of an object, the work done on an object, and the force required to change the velocity of an object.
Here,
The average velocity of an object over an interval [t1, t2] is given by the formula:
V = (x(t2) - x(t1)) / (t2 - t1)
where x(t) is the position function.
a) Average velocity over [1, 4]:
V = (-84² + 244) - (-81² + 241) / (4 - 1)
= (-816 + 96) - (-81 + 24) / 3
= (96 - 128) / 3
= -32 / 3
b) Average velocity over [1, 3]:
V = (-83² + 243) - (-81² + 241) / (3 - 1)
= (-89 + 72) - (-81 + 24) / 2
= (72 - 64) / 2
= 8 / 2
= 4
c) Average velocity over [1, 2]:
V = (-82² + 242) - (-81² + 241) / (2 - 1)
= (-84 + 48) - (-81 + 24) / 1
= (48 - 32) / 1
= 16
d) Average velocity over [1, 1 + h]:
V = (-8*(1 + h)² + 24*(1 + h)) - (-81² + 241) / ((1 + h) - 1)
= (-8*(1 + h)² + 24*(1 + h)) - (-8 + 24) / h
= (-8*(1 + h)² + 24*(1 + h)) - 16 / h
The value of h is any real number greater than 0, so the answer is a general expression that depends on the specific value of h.
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A card is drawn from a standard deck of cards then a month of the year is chosen. What is the probability of getting diamond or a 7 then November.
The probability is the likelihood that anything will happen, and in November, the probability of receiving a diamond or a 7 is 1/39.
What is probability?Simply put, the probability is the likelihood that something will occur.
When we don't know how an event will turn out, we can discuss the likelihood or likelihood of several outcomes.
Statistics is the study of events that follow a probability distribution.
Probability is a measure of how likely something is to occur.
The probability is computed by dividing the total number of possible outcomes by the number of possible ways the event could occur.
So, in 52 cards, there are 13 diamonds and 4 sevens ( one of 7 included in 13 diamonds)
Getting a 7 or a diamond: (13 + 4 - 1) /52 = 16 / 52 = 4 / 13
November: 1 / 12
4 / 13 * 1 / 12 = 4 / 156 = 1 / 39
Therefore, the probability is the likelihood that anything will happen, and in November, the probability of receiving a diamond or a 7 is 1/39.
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Help on math for 10 points
Answer:
2
Step-by-step explanation:
SV = TU
x+3 = 4x-3
6=3x
x=2
Hello!:
In a parallelogram:
--> the sides parallel to each other are equal in length
--> so sides SV and TU are equal lengths
--> which in equation form
[tex]SV=TU\\x+3=4x-3\\4x-x=3+3\\3x=6\\x=2[/tex]
Thus if SV = x + 3, then:
[tex]SV=x+3=2+3=5[/tex]
The length of SV is 5
Answer: 5
Shannon planted t fewer trees than toby. Toby planted 6 trees . Choose the expression that shows how many trees Shannon planted
The expression that presents the number of trees that Shannon planted will be 6 - t.
What is Algebra?Algebra is the study of abstract symbols, while logic is the manipulation of all those ideas.
The acronym PEMDAS stands for Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction. This approach is used to answer the problem correctly and completely.
Shannon planted t fewer trees than toby. Toby planted 6 trees.
Then the number of trees that Shannon planted will be given as,
⇒ 6 - t
The expression that presents the number of trees that Shannon planted will be 6 - t.
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PLEASE ANSWER ASAP
Farm Land
You are buying 60 acres of farm land at a cost of $685,000.
What is the cost per acre?
$
per acre
What would the cost be for 50 acres?
$
Round your answers to the nearest dollar as needed.
Scott deposits $5000 into an account that pays simple interest at a rate of 2% per year. How much interest will he be paid in the first 5 years?
Answer:
$500
Step-by-step explanation:
To calculate the interest paid in the first 5 years, you can use the formula for simple interest: I = Prt, where I is the interest, P is the principal (the original amount of the deposit), r is the interest rate (expressed as a decimal), and t is the time (in years).
In this case:
I = P * r * t
I = 5000 * 0.02 * 5
I = 5000 * 0.1
I = $500
So Scott will be paid $500 in interest over the first 5 years.
Answer:
500 is ur answer
Step-by-step explanation:
DONT BELIEVE ME? Ask ur teacher
Is 14 or 18 the solution of the equation 7x-20+78
Answer:
the answer is 7x + 58
Step-by-step explanation:
7x - 20 + 78
=7x + 58.
remember your question is algebra.
Write a polynomial function f of least degree that has a leading coefficient of 1 and the given zeros. Write the function in standard form. 4,6−√7
The polynomial function will be x² + (10 - √7)x + 4 ( 6 - √7).
What is a polynomial?A polynomial in mathematics is an expression made up of coefficients and indeterminates and involves only the operations of multiplication, addition, subtraction, and non-negative integer exponentiation of variables.
Given that the zeroes of the polynomials are 4,6−√7. The polynomial can be written as:-
( x + 4 ) ( x + 6 -√7)
x² + 6x - √7x + 4x 24 - 4√7
x² + ( 10 - √7 )x + 4(6 - √7)
Hence, the polynomial function will be x² + (10 - √7)x + 4 ( 6 - √7).
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Solve for y: -5x + 2y + 10 = 8 What is the value of y when x = -4? y=
Answer: y = -11
Step-by-step explanation:
-5x + 2y + 10 = 8
(If x= -4, then...)
or -5(-4) + 2y+10=8
or 20 + 2y + 10 = 8
or 2y = 8-20-10
or 2y = -22
or y = -22/
or y = -11
IVE BEEN RACKING MY BRAIN FOR 2 DAYS ON HOW TO WORK THIS PROBLEM OUT I CANT SEEM TO GET HOW ITS DONE FRUSTRATING!!!! PLEZZZ ANYONE I JUST WANT TO GIVE UP
Bill scheduled himself from 8:00 AM-1:00 PM Sunday through Wednesday. On Wednesday, he needed to release his intervals from 11:00 AM-1:00 PM at the last minute. He serviced all of the other time for which he posted. What was his overall Commitment Adherence percentage? Enter whole numbers (no decimals) only.
Bill's overall Commitment Adherence percentage was 64%.
What was his overall Commitment Adherence percentage? To find the overall Commitment Adherence percentage, we need to find the total time Bill committed to work and the total time he actually worked.Total time committed: 5 days * 5 hours per day = 25 hoursTotal time actually worked: 4 days * 5 hours per day - 2 hours = 16 hoursThe overall Commitment Adherence percentage is then:Adherence Percentage = (Total time actually worked / Total time committed) * 100Adherence Percentage = (16 / 25) * 100 = 64%So Bill's overall Commitment Adherence percentage was 64%.To learn more about percentage refer:
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point a: (-7, 8) what is the equation of the circle with a center at the point and a radius of 4 units?
The equation of the circle with a center at the point (-7,8) and a radius of 4 units is (x + 7)² + (x - 8)² = 16.
The standard form of a circle with a center at (h,k) and a radius r is
(x - h)² + (x - k)² = r².
Since we have center as a point A which is (-7,8) and radius of circle as 4 units ,
h = -7
k = 8
r = 4
Thus the equation of circle is,
(x -(-7))² + (x - 8)² = 4²
This equation simplifies to be ,
(x + 7)² + (x - 8)² = 16
A circle is a two-dimensional object made up of points that are spaced out from a given point (centre) on the plane by a fixed or constant distance (radius). The fixed point is referred to as the circle's origin or center, and the fixed distance between each point and the origin is referred to as the radius.
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