The solution to the problem is 16.
first, you must set up the equation.
\(4^4*\frac{4^3}{4^5}\)
Then, simplify exponents.
256*\(\frac{64}{1024}\)
Next, simplify the equation.
16
Show the substitution v = In y transforms the differential equation y' + P(x)y = Q(x)(ylny) into the linear equation v' + P(x) = Q(x)v(x). solve the equation: xy' – 4x²y + 2y In y = 0
Solution is y = e^v, where v satisfies the linear equation v' + P(x) = Q(x)v(x).
To show that the substitution v = In y transforms the differential equation y' + P(x)y = Q(x)(ylny) into the linear equation v' + P(x) = Q(x)v(x), we need to substitute y = e^v into the original equation:
y' + P(x)y = Q(x)(ylny)
e^v dv/dx + P(x) e^v = Q(x) e^v
Now divide both sides by e^v:
dv/dx + P(x) = Q(x) v
This is the linear equation v' + P(x) = Q(x)v(x) that we were asked to show.
To solve the equation xy' – 4x²y + 2y In y = 0, we can use the substitution v = In y. Taking the derivative of v with respect to x, we get:
dv/dx = 1/y dy/dx
Substituting this and y = e^v into the equation, we get:
x(1/y dy/dx) e^v - 4x² e^v + 2e^v v = 0
Dividing both sides by e^v yields:
x(1/y dy/dx) - 4x² + 2v = 0
Now substitute v = In y back into the equation to get:
x(1/y dy/dx) - 4x² + 2In y = 0
Multiplying both sides by y and rearranging, we get:
xy' - 4x²y + 2y In y = 0
which is the original equation we started with.
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Write a two-column proof.
Given: MS ≅ RQ, MS || RQ
Prove: Δ M S P ≅Δ R Q P
We can conclude that ΔMSP ≅ ΔRQP under SAS conditions.
What do we mean by a triangle's congruency?If all three corresponding sides and angles of two triangles are the same size, they are said to be congruent.These triangles can be moved, rotated, flipped, and turned to appear identical.If they are moved, they will coincide.When two triangles satisfy the five congruence conditions, congruence exists.They are the side-side-side (SSS), side-angle-side (SAS), angle-side-angle (ASA), angle-angle-side (AAS), and right angle-hypotenuse-side (RHS).So,
Given: MS ≅ RQ, MS || RQ
To Prove: ΔMSP ≅ ΔRQP
MS = RQ = (Given)SP = PQ = (Q is the midpoint)So, ∠MSP = ∠RQP (SAS)ΔMSP ≅ ΔRQP is proved.
Therefore, ΔMSP ≅ ΔRQP under SAS condition.
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The graph of f(x)=x2 is shown. Use the parabola tool to graph the function g(x)=(12x)2. To graph a parabola, first plot the vertex then plot another point on the parabola.
Answer:
Pease check my assumptions.
Step-by-step explanation:
I will assume that f(x)=x2 is actually f(x) = x^2.
Same for g(x)=(12x)^2 [Is it g(x)=12x^2 ???]
See the attached image.
Note that (12x)^2 results in a narrower, steeper graph. That's because (12x)^2 can be rewritten as 144x^2, so every value is multiplied by 144, compared to just x^2.
10-
9
8
7
6
654321
AJ
B
1 2 3 4 5 6 7 8 9 10
a) What are the coordinates of A?
b) What are the coordinates of B?
X
The coordinates of B when it is given that A(5,-2) and M(12,6) is (29, 14).
How to find the coordinatesIf M is the mid-point of line segment AB, and the coordinates of A = (5,-2) while the coordinates of B = (12,6), then the coordinates of M = (8.5,2), which is what you stated that you got.
You are provided with M = (12,6) so you need to identify the coordinates of B. So, just ask yourself how did I get from A to M ? The answer is move 7 right and 8 up since 5 + 7 = 12 while -2 + 8 = 6. All you have to do is add 7 more to the x-value and 8 more to the y-value to obtain the correct answer of (19,14).
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Find the coordinates of B when it is given that A(5,-2) and M(12,6),
Identify ON.
Need help ASAP! I’m so confused
Answer:
NO = 23
Step-by-step explanation:
ML and NO are equal. The property that creates that is SAS. The sides come from the Radii. The enclosed angle is given.
ML = NO
7x - 12 = 3x + 8 Subtract 3x from both sides
7x - 3x - 12 = 3x-3x +8 Combine
4x - 12 = 8 Add 12 to both sides
4x-12+12= 8+12 Combine
4x = 20 Divide by 4
4x/4 = 20/4
x = 5
Now you want to know what 3x + 8 =
3(5) + 8
15 + 8
23
If y = cos x, how many periods will there be between -5pi and 9pi ?
Answer:
7 periods.
Step-by-step explanation:
The cosine function is periodic, meaning it repeats forever.
Standard form of a cosine function:
\(f(x) = A \cos(B(x + C)) + D\)
where:
A = amplitude (height from the mid-line to the peak).2π/B = period (horizontal distance between consecutive peaks).C = phase shift (horizontal shift - positive is to the left).D = vertical shift.Therefore, for y = cos x:
Amplitude = 1Period = 2πPhase shift = 0Vertical shift = 0The maximum of the function is when x = 0 + 2πn.
The minimum of the function is when x = π + 2πn.
To find the number of periods, first find the difference between the two given values:
⇒ 9π - (-5π) = 9π + 5π = 14π
As the period of the function is 2π, then the number of periods is:
⇒ 14π ÷ 2π = 7 periods.
I will give brainliest for correct answer!
Answer:
you forgot the question
Step-by-step explanation:
Answer:
where is the question? we need the question lol
Explain why this study can be analyzed using the methods for conducting a hypothesis test regarding two independent proportions. Select all that apply.
A.
The data come from a population that is normally distributed.
B.
n1p11−p1≥10 and n2p21−p2≥10
C.
The sample size is less than 5% of the population size for each sample.
D.
The sample size is more than 5% of the population size for each sample.
E.
The samples are independent.
F.
The samples are dependent.
The correct options for analyzing the study using the methods for conducting a hypothesis test regarding two independent proportions are:
B. n1p11−p1≥10 and n2p21−p2≥10
E. The samples are independent.
Explanation:
A. The assumption of normal distribution is not required for conducting a hypothesis test regarding two independent proportions. Therefore, option A is incorrect.
C. The sample size being less than 5% of the population size for each sample is not a requirement for analyzing the study using the methods for conducting a hypothesis test regarding two independent proportions. Therefore, option C is incorrect.
D. The sample size being more than 5% of the population size for each sample is also not a requirement for analyzing the study using the methods for conducting a hypothesis test regarding two independent proportions. Therefore, option D is incorrect.
E. The independence of the samples is a crucial assumption for conducting a hypothesis test regarding two independent proportions. If the samples are not independent, then different methods need to be used. Therefore, option E is correct.
F. The samples being dependent is not consistent with the assumption for conducting a hypothesis test regarding two independent proportions. If the samples are dependent, different methods need to be used. Therefore, option F is incorrect.
The correct options are B and E.
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help help help help Please
Answer:
It rises -4 and runs 6
Step-by-step explanation:
So the slope is -4/6
Which equation of a line contains the points (-10,15) and (8, -3) and is parallel to y +4= -(x - 1)?
Answer:
y= -x+5
Step-by-step explanation:
The slope of the two parallel lines is equal
so, the slope of
y=-x-3 is -1
slope=y2-y1/x2-x1=-3-15/8--10=-1
the equation of the line is
y-15= -1(x--10)
y= -x-10+15
y= -x+5
Considering the expression of a line and parallel lines, you obtain, the correct answer is third option: the equation of the line that passes through the pair of points (-10,15) and (8, -3) is y= -x +5.
Definition of linear equationA linear equation o line can be expressed in the form y = mx + b
where
x and y are coordinates of a point.m is the slope.b is the ordinate to the origin and represents the coordinate of the point where the line crosses the y axis.Knowing two points (x1, y1) and (x2, y2) of a line, the slope m of said line can be calculated using the following expression:
\(m=\frac{y2-y1}{x2-x1}\)
Substituting the value of the slope m and the value of one of the points in the expression of a linear equation, y = mx + b, the value of the ordinate to the origin b can be obtained.
Definition of parallel linesParallel lines are two lines that always maintain the same distance and if they were extended to infinity they would never touch.
That is, parallel lines are two or more lines that never intersect.
Parallel lines are characterized by having the same slope.
Linear equation in this caseSo, in this case, being (x1,y1)= (-10,15) and (x2,y2)= (8,-3), the slope m can be calculated as:
\(m=\frac{-3-15}{8-(-10)}\)
\(m=\frac{-18}{18}\)
m=-1
So, being y= -1x + b and considering point 1, you obtain:
15= -1×(-10) +b
15= 10 + b
15-10=b
5= b
So, the equation of the line is y=-1x + 5= -x +5
To know if this line is parallel to y +4= -(x - 1), in first place you must rearrange this second equation of a line:
y +4= -x +1
y=-x +1 -4
y= -x-3
You can see that both equations of a line have -1 as the slope value m.
Finally, the correct answer is third option: the equation of the line that passes through the pair of points (-10,15) and (8, -3) is y= -x +5.
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a study is being done to test the effects of habitat space on the size of fish populations. four aquariums of of the same size are set up with six goldfish in each one. over a period of six months, the fish are fed the same type and amount of food. the aquariums are equally maintained and cleaned throughout the experiment. the temperature of the water is kept different in each tank. at the end of the experiment the number of surviving fish are surveyed. what is the independent variable?
The independent variable in this study is the temperature of the water in each tank. The independent variable is the factor that is intentionally manipulated or changed by the researcher in order to observe its effect on the dependent variable. In this case, the researcher is testing the effects of habitat space on the size of fish populations, and they are manipulating the temperature of the water to see how it impacts the survival of the goldfish.
The researcher sets up four aquariums of the same size with six goldfish in each one. The independent variable, temperature, is kept different in each tank. This means that each tank is maintained at a different temperature throughout the experiment.
By manipulating the temperature in each tank, the researcher can observe how the different temperature conditions affect the survival of the goldfish. This allows them to determine whether the size of the fish populations is influenced by habitat space, as measured by the temperature of the water.
To summarize, in this study, the independent variable is the temperature of the water in each tank. The researcher is manipulating the temperature to observe its effect on the survival of the goldfish and determine the impact of habitat space on fish populations.
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Given the regression equation y-hat = 15.6 - 3.8x, the predicted y for x = 3 is ___________.
Work Shown:
y = 15.6 - 3.8x
y = 15.6 - 3.8*3
y = 4.2
which measure of variability is the most direct way to measure how dispersed a set of scores is?
The most direct way to measure how dispersed a set of scores is, is by using the range. The range is calculated by subtracting the lowest score from the highest score in the dataset, which gives a quick and easy measure of the spread of the scores.
However, the range can be influenced by extreme scores and may not provide a complete picture of the variability. Other measures of variability, such as the standard deviation and variance, take into account the variability of all scores in the dataset and provide a more robust measure of variability.
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Piper and her friend Hunter are going to a carnival that has games and rides. Piper played 5 games and went on 7 rides and spent a total of $43.75. Hunter played 10 games and went on 2 rides and spent a total of $27.50. Determine the cost of each game and the cost of each ride.
In conclusion each game costs $10.20 and each ride costs $0.89.
How to solve?
Piper and Hunter went to a carnival and played games and went on rides. Piper played 5 games and went on 7 rides, spending a total of $43.75. Hunter played 10 games and went on 2 rides, spending a total of $27.50. We want to find the cost of each game (g) and the cost of each ride (r).
To solve this problem, we can set up two equations based on the given information and use algebra to solve for g and r. After solving for g and r, we find that the cost of each game is $10.20 and the cost of each ride is $0.89.
In simpler terms, Piper and Hunter spent different amounts of money on games and rides, and we want to figure out how much each activity costs. By using some equations and math, we can find out that each game costs $10.20 and each ride costs $0.89.
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What is f(2) for the function f(x) = 2 x^2 + 6 x − 5
Answer:
Step-by-step explanation:
x + 2) = 2(x + 2)2 - 6(x + 2)
= 2(x2 + 4x + 4) - 6(x + 2)
= 2x2 + 8x + 8 - 6x - 12
= 2x2 + 2x - 4
BEDROOM Shenandoah's rectangular bedroom is 12 feet long and 7 feet wide. Write a
numerical expression to describe the area of Shenandoah's bedroom.
Answer:
(12 x 7) feet2
Step-by-step explanation:
formula of area= length times breadth
The expression which describes the area of the bedroom is (12 x 7) square feet. The area is 84 square feet.
What is an area?The space occupied by any two-dimensional figure in a plane is called the area. The space occupied by the rectangle is called the area of the rectangle. The rectangle has two sides one is the width and the other is the Length.
Given that Shenandoah's rectangular bedroom is 12 feet long and 7 feet wide.
The area of the rectangle is the product of its width and length.
Area = L x W
The expression for Shenandoah's bedroom area will be written as below:-
Area = 12 x 7
Area = 84 square feet
Therefore, the expression which describes the area of the bedroom is (12 x 7) square feet. The area is 84 square feet.
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find x if 3 tan (x+25)= -0.8391
The answer is x = 139.38 degrees.
To solve for x in the equation 3 tan(x+25)=-0.8391, we need to first isolate the tangent function on one side of the equation. To do this, we can divide both sides by 3, which gives us tan(x+25) = -0.2797.
Next, we need to find the angle whose tangent is equal to -0.2797. We can use a calculator or a trigonometric table to find the reference angle, which is approximately 15.62 degrees. However, we need to adjust for the fact that the tangent function is negative in the second and fourth quadrants of the unit circle.
Since we have tan(x+25) = -0.2797, and we know that the tangent function is negative in the second quadrant, we can subtract 180 degrees from the reference angle to get the actual angle in the second quadrant. This gives us x+25 = 164.38 degrees.
To solve for x, we can subtract 25 from both sides, which gives us x = 139.38 degrees. Therefore, x is approximately 139.38 degrees.
In conclusion, to find the value of x in the equation 3 tan (x+25) = -0.8391, we need to isolate the tangent function, find the reference angle whose tangent is equal to the resulting value, adjust for the sign of the tangent in the appropriate quadrant, and finally solve for x. The answer is x = 139.38 degrees.
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two different studies have estimated the mean nicotine content of a brand of cigarettes. each study used the same analysis. study 1 used a random sample of 10 cigarettes and study 2 used a random sample of 100 cigarettes. with regards to uncertainty in the estimates of the two studies, which statement is true? a. the uncertainty will be smaller in study 1 than in study 2. b. the uncertainty will be larger in study 1 than in study 2. c. the uncertainty will be the same for both studies.
The correct statement is: b. The uncertainty will be larger in Study 1 than in Study 2.
This is because Study 2 used a larger random sample (100 cigarettes) compared to Study 1 (10 cigarettes), resulting in a more accurate estimate of the mean nicotine content and reduced uncertainty.
The uncertainty will be larger in study 1 than in study 2. This is because the sample size in study 1 is smaller than in study 2, which means there is more variability in the estimates due to the smaller sample size. In general, larger sample sizes lead to more precise estimates with less uncertainty.
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15. Let \( f(x)=x^{3}+a x^{2}-5 x+b \). It is given that \( f(x) \) is divisible by \( (x-1) \) and when \( f(x) \) is divided by \( (x+3) \), the remainder is \( -24 \). Find the value of \( a \) and
The value of a is 5 and the value of b is -25 in the polynomial f(x) = x³ + ax² - 5x + b that is divisible by x - 1 and has a remainder of -24 when divided by x + 3.
To find the value of a and b in the polynomial f(x) = x³ + ax² - 5x + b, we'll use the given information that f(x) is divisible by x - 1 and leaves a remainder of -24 when divided by x + 3.
When f(x) is divisible by x-1, it means that x-1 is a factor of f(x). Therefore, we can write f(x) as the product of x-1 and another polynomial:
f(x) = (x - 1) . g(x)
where g(x) is the other polynomial.
We can expand this equation:
x³ + ax² - 5x + b = (x - 1) . g(x)
Now, let's divide f(x) by x+3 and set the remainder equal to -24. We'll use polynomial long division to perform the division:
```
x² + (4a - 1)x + (5a - b - 24)
x + 3 | x³ + ax² - 5x + b
- (x³3 + 3ax²)
------------
(a - 5)x + b
- ((a - 5)x + 3(a - 5))
---------------------
0
```
The remainder is 0, so we can set the expression for the remainder equal to zero and solve for a and b:
a - 5 = 0 -> a = 5
(a - 5)x + b = 0 -> b = -5a -> b = -5(5) -> b = -25
Therefore, the value of a is 5 and the value of b is -25.
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Please help, graph the line
Answer:
Step-by-step explanation:
15) x should +ve
16) x should be -ve
Find the equation of the hyperbola with the following properties. Express your answer in standard form.Foci at (7, 0) and (7, 10)Asymptotes ofy -5 = t;( -7
Answer:
\(\frac{(y-5)^2}{16}-\frac{(x-7)^2}{9}=1\)
Explanation:
The standard form of an hyperbola is:
\(\frac{(y-k)^2}{a^2}-\frac{(x-h)^2}{b^2}=1\)Where (h, k) are the coordinates of the center.
We are given the asyptotes and the foci.
The foci are (7, 0) and (7, 10)
The y value of the center of the parabola is midway from the two foci. Then, the y-coordinate of the center is 5
The coordinated of the center are (7, 5)
Now, we can use that the form of the asymptotes are:
\(y=k\pm\frac{a}{b}(x-h)\)We have:
\(y-5=\frac{4}{3}(x-7)\)Then:
\(\frac{a}{b}=\frac{4}{3}\)a = 4
b = 3
Now we can write:
\(undefined\)a sandwich shop offers four kinds of bread (white, wheat, rye, and multigrain), as well as 5 different kinds of meat (ham, turkey, roast beef, salami, and prosciutto). the revenues were collected for each combination over a period of several days. the sample size was equal to 60. they conducted a two-way anova test to determine if there is a difference in the revenues for the breads and meats. what would be the numerator degree of freedom for the f test statistic to determine if the factor bread was significant? group of answer choices 4 1 0 2 3
The numerator degree of freedom for the F test statistic to determine if the factor bread was significant would be 3.
This is because there are 4 different kinds of bread, but when conducting a two-way ANOVA test, one of the groups is always used as the reference group. Therefore, there are only 3 groups of bread that are being compared to each other. The denominator degree of freedom would be 56 (60 total samples minus 4 groups of bread and 5 groups of meat).
The F test statistic would determine if there is a significant difference in revenues between the different kinds of bread, while also controlling for the effect of the different kinds of meat.
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pls help
Which of the sets of ordered pairs represents a function? (5 points)
A = {(3, −5), (4, 6), (−3, 9), (2, 7)}
B = {(2, 4), (−1, −7), (5, 6), (4, 3)}
rohana wants to find the volume of a sphere that has a radius of 10 feet. which equation can she use to solve for this value in cubic feet ?
The equation that can be used to determine the volume of the sphere is 4/3π10³
What is the volume of the sphere?A sphere is a three-dimensional object in which points from its center to its circumference is equidistant.
Volume of a sphere = 4/3πr³
Where:
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32. If a pipe fills a tank in h hours, what part of the tank does it fill in 2 hours? A. 2/hB. H/2 C.2h D. h +2
Answer:
2/h
Explanation:
Given that a tank can be filled in h hours, to determine what part of the tank can be filled in 2 hours, all we need to is divide 2 by h.
Therefore, 2/h part of the tank will be filled in 2 hours.
Math which one is right? Giving brainlist
Answer:
Third option.
Step-by-step explanation:
\(5-2\left(3x-9\right)=-1\)
Use the distributive law: \(a(b-c)=ab-ac\)
\(5-2\times3x-\left(-2\right)\times9=-1\)
Double negative = Positive
\(5-6x+18=-1\)
2-(3x-4) = 2x -9
Solve the equation above to solve for x
Answer:
2-(3x-4) = 2x -9
-6x + 8 = 2x - 9
6x = 17
x = 2.833
3 approximately
The results of a survey about the most
common colors of front doors were
put into a circle graph. The results
were: brown, 105; white, 220; red, 50;
and blue, 75 What is the measure of
the central angle that will form the
section representing blue?
Using percentages we know that blue is 18.52% of the total percentage.
What is the percentage?A percentage is a figure or ratio stated as a fraction of 100 in mathematics.
A % is a quantity or ratio that, in mathematics, represents a portion of one hundred.
A dimensionless relationship between two numbers can be represented in a variety of ways, such as through ratios, fractions, and decimals.
The symbol "%" is frequently written after the number to indicate percentages.
So, find the percentage of blue as follows:
= 105 + 220 + 50 + 75 = 405
The blue percentage would be:
= 75/405 * 100
= 18.52
Therefore, using percentages we know that blue is 18.52% of the total percentage.
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Find the exact value of cos J in simplest form.
√29
14
15
H
The cosine of angle J is given as follows:
\(\cos{J} = \frac{14\sqrt{2}}{49}\)
What are the trigonometric ratios?The three trigonometric ratios are the sine, the cosine and the tangent of an angle, and they are obtained according to the rules presented as follows:
Sine = length of opposite side/length of hypotenuse.Cosine = length of adjacent side/length of hypotenuse.Tangent = length of opposite side/length of adjacent side = sine/cosine.For the angle J in this problem, we have that:
4 is the adjacent side.\(\sqrt{98}\) is the hypotenuse.Hence the cosine of angle J is given as follows:
\(\cos{J} = \frac{4}{\sqrt{98}} \times \frac{\sqrt{98}}{\sqrt{98}}\)
\(\cos{J} = \frac{4\sqrt{98}}{98}\)
\(\cos{J} = \frac{2\sqrt{98}}{49}\)
As 98 = 2 x 49, we have that \(\sqrt{98} = \sqrt{49 \times 2} = 7\sqrt{2}\), hence:
\(\cos{J} = \frac{14\sqrt{2}}{49}\)
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Mrs. Habib has 46.25 feet of border for a bulletin board for her classroom. the board is 37.5 feet tall and 8.3 feet wide. how many feet of border will Mrs habib have left after she puts border around the board?
It’s not 22.15 I’ve tried.
Answer:
Mrs. Habib will have 22.25 feet of border left after she puts border around the board.
Step-by-step explanation:
You must find the perimeter of the board and subtract it from the amount of border she has to find how much she will have left after she uses it. The formula for perimeter is \(P=2(l+w)\), where \(l=\) the length of the board, and \(w=\) the width of the board. You will add those together and multiply them by 2 because there are 4 sides to a rectangle. That means this equation will look like:
\(P=2(8.25+3.75)\)
Now you can just solve for the perimeter.
\(P=2(12)\)
\(P=24\)
The perimeter is 24 feet. That means it will take 24 feet of border to cover her board. In order to find out how much she'll have left over, just subtract 24 from the total amount of border she has.
\(46.25-24=22.25\)
Therefore Mrs. Habib will have 22.25 feet of border left over after she covers the bulletin board.