HELPPP MEEEEEEE
with this math

Answer:

Kindly check explanation

Step-by-step explanation:

Population refers to the all elements which belongs to a particular subject of interest. In the scenario above, Since Krista is comparing eggs laid by any chicken in the county, then the population will be all chickens in the county.

A representative sample, which is a random subset of the population could be a certain number of chickens drawn from different poultry farms around the county. If selected randomly, will be representive of the chickens in the county.

Answer: Look at the expanation please.

Step-by-step explanation:

So she needs to know the population. So the population would be all of the chicken farms or chickens that are in her county.

The next question is what is a possible representative sample?

So one of the possibility is would be choosing a random farm in Krista´s county.

But there are many possible representative samples. You can get creative.

Thank you hope this helps. :)

Answer: y=6

Step-by-step explanation:

Data: y=3 and x=12

y=? and x=18

12/3=4 and 18/3=6

y=6

I hope this helps

b^5 x b^10 = b^5+10

b^15

b^15 to y

Answer:

approx. 68%

Step-by-step explanation:

this is a normal distribution.

in a normal distribution, approximately 68% of the data is within one standard deviation of the mean (we also have 95% of data is within two standard deviations of the mean, and 99.7% of data is within three standard deviations of the mean).

one standard deviation in our question is 113.

315 is one standard deviation below the mean because 428 - 113 = 315.

541 is one standard deviation above the mean because 428 + 113 = 541.

so we expect approx. 68% of the data to be between 315 and 541.

Answer:

It's B

Step-by-step explanation:

Given that we have the graph of f(x), we want to see which one is the graph of its inverse. i just had that question and i got a 100 on it

Answer:

23, 11, -13

Step-by-step explanation:

y+6(-2)=11

y-12=11

y=23

y+6(0)=11

y+0=11

y=11

y+6(4)=11

y+24=11

y=-13

Answer:

x=y-4

Step-by-step explanation:

If Samir has skated y laps around the rink, then Kai has skated y - 4 laps around the rink.

So the expression that shows how many laps Kai has skated around the rink is: x=y-4

Answer:

Step-by-step explanation: patience. wyd here.

but the answer is x=y-4

To compare the 3-month and 12-month moving average forecasts using the mean absolute deviation (MAD) criterion, we need to calculate the MAD for each model and then compare them. The MAD is a measure of the average magnitude of the forecast errors, and a lower MAD indicates a better forecast.

To calculate the MAD for the 3-month moving average model, we need to first calculate the forecasted values for each month by taking the average of the unemployment rates for the previous 3 months. For example, the forecasted value for April 2018 would be the average of the unemployment rates for January, February, and March 2018. We then calculate the absolute deviation between the forecasted value and the actual value for each month, and take the average of those deviations to get the MAD for the 3-month moving average model.

We can repeat this process for the 12-month moving average model, but instead of taking the average of the previous 3 months, we take the average of the previous 12 months.

Once we have calculated the MAD for both models, we can compare them to determine which model yields better results. Generally, a lower MAD indicates a better forecast. However, it is important to note that the MAD criterion only considers the magnitude of the forecast errors and does not take into account the direction of the errors (i.e., overestimation versus underestimation).

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Full Question ;

The accompanying dataset provides data on monthly unemployment rates for a certain region over four years. Compare 3- and 12-month moving average forecasts using the MAD criterion. Which of the two models yields better results? Explain. Click the icon to view the unemployment rate data. Find the MAD for the 3-month moving average forecast. MAD = (Type an integer or decimal rounded to three decimal places as needed.) A1 fx Year D E F G H I 1 2 3 1 с Rate(%) 7.8 8.3 8.5 8.9 9.4 9.6 9.4 9.5 9.7 9.9 9.8 10.1 9.9 9.7 9.8 9.91 9.7 9.4 9.6 9.4 9.3 9.5 9.9 9.5 9.2 9.1 8.9 A B Year Month 2013 Jan 2013 Feb 2013 Mar 2013 Apr 2013 May 2013 Jun 2013 Jul 2013 Aug 2013 Sep 2013 Oct 2013 Nov 2013 Dec 2014 Jan 2014 Feb 2014 Mar 2014 Apr 2014 May 2014 Jun 2014 Jul 2014 Aug 2014 Sep 2014 Oct 2014 Nov 2014 Dec 2015 Jan 2015 Feb 2015 Mar 2015 Apr 2015 May 2015 Jun 2015 Jul 2015 Aug 2015 Sep 2015 Oct 5 7 3 ) 1 2 3 1 5 7 9.1 ) 9. 1 2 3 1 5 7 ) 9.1 8.9 8.9 8.9 8.9 8.7 8.4 8.3 8.3 8.4 8.1 8.1 8.4 8.2 8.3 7.7 7.9 7.9 7.8 1 2 2015 Dec 2016 Jan 2016 Feb 2016 Mar 2016 Apr 2016 May 2016 Jun 2016 Jul 2016 Aug 2016 Sep 2016 Oct 2016 Nov 2016 Dec 3 1 5 3 2 2

answer is C

common sense i guess...

The solutions of differential equations are 1) y(x) =  \(c_{1}\)cos(2\(\sqrt{2}\)x) + \(c_{2}\)sin(2\(\sqrt{2}\)x) 2) y(x) = (1/3)\(x^{3}\) + c \(e^{\frac{-x^{2} }{2} }\) 3) Indefinite solution 4) y(x) = \(c_{1}\)\(e^{(-1 + i\sqrt{3} )/2}\) + \(c_{2}\)\(e^{(-1 - i\sqrt{3} )/2}\)

1. y" + 8y = 0

The characteristic equation for this second-order linear homogeneous differential equation is:

\(r^{2}\) + 8 = 0

Solving this quadratic equation, we find the roots:

\(r_{1}\) =  2i\(\sqrt{2}\)

\(r_{2}\) =  -2i\(\sqrt{2}\)

Therefore, the general solution is given by:

y(x) = \(c_{1}\)cos(2\(\sqrt{2}\)x) + \(c_{2}\)sin(2\(\sqrt{2}\)x)

2. y' - xy = \(x^{2} y^{2}\)

This is a first-order nonlinear ordinary differential equation. We can rewrite it as follows:

y' = xy +  \(x^{2} y^{2}\)

This equation is not separable, but we can solve it using the integrating factor method. The integrating factor is given by  =  \(e^{\frac{x^{2} }{2} }\)

Multiplying the entire equation by the integrating factor, we have:

\(e^{\frac{x^{2} }{2} }\)*y' - \(e^{\frac{x^{2} }{2} }\)*xy = \(e^{\frac{x^{2} }{2} }\) \(x^{2} y^{2}\)

Now, recognizing that ( \(e^{\frac{x^{2} }{2} }\)*y)' =  \(e^{\frac{x^{2} }{2} }\)*y' + x* \(e^{\frac{x^{2} }{2} }\)*y, we can rewrite the equation as:

( \(e^{\frac{x^{2} }{2} }\)*y)' = \(e^{\frac{x^{2} }{2} }\) \(x^{2} y^{2}\)

Integrating both sides with respect to x, we get:

\(e^{\frac{x^{2} }{2} }\)*y = (1/3)\(x^{3}\) \(e^{\frac{x^{2} }{2} }\) + c

Finally, solving for y(x), we have:

y(x) = (1/3)\(x^{3}\) + c \(e^{\frac{-x^{2} }{2} }\)

3. y" + \(x\)\(y^{2}\) = 0

This is a second-order nonlinear ordinary differential equation. Unfortunately, there is no known general analytical solution for this equation. However, we can approximate the solution using numerical methods such as Euler's method or Runge-Kutta method.

4. y" + y + y = 0

This is a second-order linear homogeneous differential equation. The characteristic equation is:

\(r^{2}\)  + r + 1 = 0

Solving this quadratic equation, we find the roots:

\(r_{1}\)= (-1 + i\(\sqrt{3\))/2

\(r_{2}\) = (-1 - i\(\sqrt{3\))/2

Therefore, the general solution is given by:

y(x) = \(c_{1}\)\(e^{(-1 + i\sqrt{3} )/2}\) + \(c_{2}\)\(e^{(-1 - i\sqrt{3} )/2}\)

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Answer:

NY or MZ

Step-by-step explanation:

they are both outside of the parallel lines and on opposite sides of the transverse line

Answer:

yes because if you divide 16:10 by 2 you get 8:5 and that still works

Step-by-step explanation:

Approximately 66(2s f) percentage of the logo does the circle cover.

What is percentage?

A percentage is a number or ratio expressed as a fraction of 100 in mathematics. Although the abbreviations "pct.", "pct.", and occasionally "pc" are also used, the percent sign, "%," is frequently used to indicate it. A percentage is a number without dimensions and without a standard measurement.

To find the percentage we must first find the area of the circle:

We can find the radius of the circle using the distance formula;

⇒ \(d=\sqrt{(x_2-x_1)^2 +(y_2-y_1)^2}\)

⇒  \(r = \sqrt{(6.3-0)^2+(1.6-0)^2}\)

⇒   r = 6.5

Now we calculate the area;

⇒ \(A = \pi r^2\)

⇒  \(A = \pi (6.5)^2\)

⇒  \(A = \frac{169}{4} \pi\)

To get the percentage we divide the area of the circle by the square’s are and multiply by 100;

⇒ Percentage = \(\frac{42.25*\pi }{200}*100\)

⇒ Percentage = 66(2s f)

Hence, approximately 66(2s f) percentage of the logo does the circle cover.

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Answer:

Slope is undefined

Step-by-step explanation:

To find the slope, subtract the y's and put that on top of a fraction. Then subtract the x's and put that on the bottom of the fraction.

This works all the time for any two points.

Here, though, we find the top

4 - -6

= 4 + 6

= 10

10 would go on top.

But then, on the bottom we get

-8 - -8

= 0

We get zero. As you know, you CANNOT have zero on the bottom of a fraction.

For the slope calculation we get 10/0

The slope is undefined.

Also, if you graph these two points, it's a verticsl line. Vertical lines (up and down) have an undefined slope.

Answer:

3.265 rounded to the nearest tenth would be 3.3

3.213 rounded to the nearest tenth would be 3.2

3.285 rounded to the nearest tenth would be 3.3

3.291 rounded to the nearest tenth would be 3.3

3.244 rounded to the nearest tenth would be 3.2

3.3 rounded to the nearest tenth would be 3.3

3.2 rounded to the nearest tenth would be 3.2

The table can be written as,

Minutes   Gallons

9                   1

18                 2

27                3

36                4

An equation is a mathematical statement that is made up of two expressions connected by an equal sign.

Example:

2x + 3 = 7 is an equation.

We have,

At the end of 18 minutes, it has filled 2.

This can be written as

y = kx

Where x is minutes and y is the number of gallons.

So,

2 = 18k

k = 2/18 = 1/9

Now,

The equation is y = (1/9)x

The table can be written as,

Minutes   Gallons

9                   1

18                 2

27                3

36                4

       
Thus,

The table that represents the relationship between the number of minutes and the number of gallons of water in the pool is given above.

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The new price of the mini-computer after a 15% reduction is $595.

To find the new price of the mini-computer after a 15% reduction, we need to calculate the discount amount and subtract it from the original price.

The original price of the mini-computer is $700. To determine the discount amount, we multiply the original price by 15% (or 0.15):

Discount = $700 x 0.15 = $105

The discount amount is $105. Now, we subtract this discount from the original price to find the reduced price:

New Price = $700 - $105 = $595

Therefore, the new price of the mini-computer after a 15% reduction is $595.

This reduction in price was likely implemented by the company to stimulate sales and attract more customers as sales started to slow down. By offering a lower price, they aimed to make the mini-computer more appealing and competitive in the market.

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The formula for the surface area of the box, in terms of the length of one side of the square base (s), is A = s^2 + 4s^2 = 5s^2.

The derivative of the surface area function with respect to s, denoted as dA/ds, gives us the rate of change of the surface area with respect to the length of one side of the base.

1. The surface area of the box consists of the area of the square base and the four equal sides. The area of the square base is s^2, and each side has a length of s. Therefore, the total surface area is given by A = s^2 + 4s^2 = 5s^2.

2. To find the derivative of the surface area function, we differentiate 5s^2 with respect to s using the power rule of differentiation. The power rule states that if we have a function f(x) = cx^n, then the derivative is f'(x) = cnx^(n-1).

  Applying the power rule, we have dA/ds = d(5s^2)/ds = 10s.

3. The derivative, dA/ds = 10s, represents the rate of change of the surface area with respect to the length of one side of the square base. This means that for every unit increase in s, the surface area increases by 10s units.

  The derivative does not provide information about minimizing the amount of material used. To find the dimensions of the box that minimize the amount of material used, we need to set up an optimization problem and solve for the critical points. This involves setting the derivative equal to zero and finding the values of s that satisfy this equation. However, since the problem statement does not provide a specific volume constraint or objective function, we cannot proceed with the optimization process.

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Addition 3+ 12, an incomplete mathematical sentence. 1.3+ 12=13.3

Addition is a mathematical procedure that is used to add numbers. The sum of the given numbers is the result of adding the given numbers. For instance, if we add 2 and 3, (2 + 3), the result is 5. We used the addition function on two numbers, 2 and 3, to produce the sum, 5

Symbol for Addition

Different symbols are used in mathematics. One of the most used arithmetic symbols is the addition symbol. We read about adding two numbers, 2 and 3, in the definition of addition above. If we look at the addition pattern (2 + 3 = 5), the symbol (+) joins and completes the two integers.

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Answer:

Step-by-step explanation:

1. mean, 2. mode, 3. median

Therefore , the solution of the given problem of expressions comes out to be  7n.

Instead of using random estimates, it is preferable to use shifting numbers that may also prove increasing, reducing, variable or blocking. They could only help one another by trading tools, information, or solutions to issues. The justifications, components, or quantitative comments for tactics like further disagreement, production, and blending may be included in the assertion of truth equation.

Here,

By dividing the number of rows by the number of trees in each row, one can calculate the total number of trees in Mr. Lee's apple orchard. Here are two expressions that demonstrate various approaches to determining the overall number of trees:

There are 7n =  trees in all.

=> Total number of trees = (Number of rows) x (Number of trees in each row) = 7n

The total number of trees in the orchard is the outcome of both expressions.

While the second statement more directly depicts the multiplication, the first expression merely merges the two elements into a single term.

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Slope (m) of RH = 3/4

Distance of RH is d =5 units

Midpoint between points R and H is: M(1, 3.5)

Slope (m) = change in y / change in x = y2 - y1/x2 - x1, where:

R(3, 5) = (x1, y1)

H(-1,2) = (x2, y2)

Plug in the values

Slope (m) = (2 - 5) / (-1 - 3)

Slope (m) = (-3) / (-4)

Slope (m) of RH = 3/4

How to Find the Distance between two Points?

Distance formula used is: \(\sqrt{(x_2 - x_1)^2 + (y_2 - y_1)^2}\)

R(3, 5) = (x1, y1)

H(-1,2) = (x2, y2)

Plug in the values

RH = √[(−1−3)² + (2−5)²]

RH = √[(−4)² + (−3)²]

RH = 5 units

How to Find the Midpoint?

The midpoint formula used is: M[(x2 + x1)/2, (y2 + y1)/2)

R(3, 5) = (x1, y1)

H(-1,2) = (x2, y2)

Substitute the values

M[(-1 + 3)/2, (2 + 5)/2)

M(1, 3.5)

Therefore,

Slope (m) of RH = 3/4

Distance of RH is d =5 units

Midpoint between points R and H is: M(1, 3.5)

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Circular equations are organized like this:

\((x-h)^2+(y-k)^2=r^2\)

We're given:

To find the equation of this circle, we must determine two things:

To determine the radius of the circle, find the distance between the given endpoints and divide by 2:

(6, 0) and (-6, 0)

⇒ There are 6 units between (0,0) and (6,0).

⇒ There are 6 units between (0,0) and (-6,0).

⇒ 6 + 6 = 12; the diameter of the circle is 12 units

⇒ 12 / 2 = 6

Therefore, the radius of the circle is 6 units.

To determine the center of the circle, find the midpoint of the given endpoints:

(6, 0) and (-6, 0)

⇒ The midpoint occurs at the very middle of these two points. The distance between the midpoint and (6,0) is equal to the distance between the midpoint and (-6,0).

⇒ We identified earlier that there are 6 units between (0,0) and (6,0), and that there are 6 units between (0,0) and (-6,0).

Therefore, the center of the circle is (0,0).

Plug the center and the radius into the equation:

\((x-h)^2+(y-k)^2=r^2\\x^2+y^2=6^2\\x^2+y^2=36\)

\(x^2+y^2=36\)

The electric field at the origin due to the infinite distribution of particles is given by E = (π² * k * q) / (6 * a²), where k is the electrostatic constant, q is the charge of each particle, and a is the distance between the particles and the origin.

The electric field at the origin due to an infinite distribution of identical particles, each with charge q and placed at distances a, 2a, 3a, 4a, and so on from the origin, can be determined by applying the principle of superposition.

Each particle contributes an electric field given by Coulomb's law, Eᵢ = k * (q / (i * a)²), where i represents the index of the particle.

Summing up the contributions from all the particles, we obtain the expression E = k * (q / a²) * (1/1² + 1/2² + 1/3² + ...). By recognizing that the sum of the reciprocals of the squares corresponds to the Basel problem solution, π²/6, we can simplify the expression to E = (π² * k * q) / (6 * a²).

Thus, the exact value of the electric field at the origin is given by E = (π² * k * q) / (6 * a²), assuming that the particles are point charges and the distances between them are much larger than their size.

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The complete question is:

Consider an infinite no of identical particle , each with charge q , place along the x-axis at the distace a, 2a, 3a, 4a ...from the origin. what isthe electric field at origin due to thid didtribution. Use the following expression. 1+221​+321​+421​+⋯=π²/6   E=?

A possible parametric representation of the cap is:

r(u, v) = (4 sin(u) cos(v), 4 sin(u) sin(v), 4 cos(u))

We can use spherical coordinates to parameterize the cap of the sphere:

x = r sinθ cosφ = 4 sinθ cosφ

y = r sinθ sinφ = 4 sinθ sinφ

z = r cosθ = 4 cosθ

where 2√3 ≤ z ≤ 4, 0 ≤ θ ≤ π/3, and 0 ≤ φ ≤ 2π.

Thus, a possible parametric representation of the cap is:

r(u, v) = (4 sin(u) cos(v), 4 sin(u) sin(v), 4 cos(u))

where 2√3 ≤ z ≤ 4, 0 ≤ u ≤ π/3, and 0 ≤ v ≤ 2π.

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Answer:

hi

Step-by-step explanation:

Answer:

6660

Step-by-step explanation:

13.32 ÷ .002 = 6660