HELP PLEASE CHECK MY ANSWER!!!

Answer:

B. survey a random sample of 7th-grade students

Step-by-step explanation:

this answer would make the most sense because it is a example of a random statistical question.

Answer:

Sides

Step-by-step explanation:

The sides will be the same

Answer: 72π meters squared.

Step-by-step explanation: Given that the radius is 6 meters, use the sphere surface area formula to find the surface area of the half-sphere;

Answer:

25.64

Step-by-step explanation:

25/100 is 1/4 and the 1/4 of 64 is 16.

Answer:

$23.64

Step-by-step explanation:

Answer:

kk

Step-by-step explanation:

\(\frac{1}{11}\), \(\frac{1}{9}\), \(\frac{1}{5}\)

Answer:soooo hard

Step-by-step explanation:

The values of the probabilities are P(u or v) = 0.63, P(u and v) = 0 and P(u|v) = 0

The probabilities are given as:

P(U) = 0.26

P(V) = 0.37

For mutually exclusive events, we have

P(u or v) = P(u) + P(v)

So, we have

P(u or v) = 0.26 + 0.37

P(u or v) = 0.63

Also, we have:

P(u and v) = 0

Finally, we have:

P(u|v) = 0

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The required relation on R on A is explain below

It is a set where either the quantity of components is large or just beginning or finishing is given. In this way, we mean it with the quantity of components, n(A), and on the off chance that n(A) is a characteristic number, it's a limited set.

Let A be finite non-empty set.

Then the exist relation R on A which is both equivalence and order relation.

Suppose A = {a₁, a₂, a₃........an}

And, R = {(a₁, a₁)(a₂, a₂).......}

R not equal to ∅ and it is reflexive, symmetric, transitive, anti symmetric.

Then R is equivalence relation and an order relation.

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When the data are labels or names that are used to identify an attribute of the elements and the rank of the data is meaningful, the scale of measurement is referred to as a nominal scale.

A scale of measurement can be defined as a classification which is used to illustrate the attributes of the values that are assigned to variables associated with a data set.

Generally, there are four (4) basic scale of measurement for a variable and these include the following;

A nominal scale is also referred to as categorical data and it can be defined as a scale of measurement that is characterized by data which are either non-numerical or numeric, and comprises categories, labels or names, and can't be arranged in an ordering scheme.

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El medio ambiente es un tema crucial para la supervivencia de todas las especies del planeta, incluyendo los seres humanos. La actividad humana ha tenido un impacto significativo en el medio ambiente, lo que ha llevado a la degradación de los ecosistemas, la pérdida de biodiversidad y el cambio climático.

Es importante que tomemos medidas para proteger el medio ambiente. Podemos hacer esto reduciendo nuestra huella de carbono, utilizando fuentes de energía renovable, reduciendo nuestro consumo de recursos naturales y siendo más conscientes de nuestras acciones en relación con el medio ambiente.

Además, la educación es clave para la protección del medio ambiente. Si todos estamos educados sobre los problemas ambientales y las soluciones, podemos trabajar juntos para encontrar formas de proteger y preservar nuestro planeta para las generaciones futuras.

En resumen, el medio ambiente es esencial para nuestra supervivencia y debemos tomar medidas para protegerlo. La educación y la acción son necesarias para abordar los desafíos ambientales que enfrentamos como sociedad.

Answer:

See below

Step-by-step explanation:

There are two feasible ways to place the turtle eggs.

\(\huge\underline\mathcal\pink{₳₦₴₩ɆⱤ:-}\)

Biconditional statements do not use the key words 'if' and 'then.' Biconditional statements are true statements that combine the hypothesis and the conclusion with the key words 'if and only if.'

For example, the statement will take this form: (hypothesis) if and only if (conclusion). We could also write it this way: (conclusion) if and only if (hypothesis). If you figured out that both the conditional and converse statements have to be true for a biconditional statement to exist in geometry, you are correct. It's like a reversible jacket; you can wear it on both sides.

Let's rewrite our last example:

Conditional statement: If a polygon has three sides, then it is a triangle.

Converse statement: If a polygon is a triangle, then it has three sides.

Since both are statements are true, we can go ahead and make our biconditional statements:

A polygon is a triangle 'if and only if' it has three sides.

A polygon has three sides 'if and only if' it is a triangle.

Since we can write two biconditional statements, we could also define them as compound statements, since both the conditional and the converse statements have to be true. Let's practice some more.

The derivative \(\( y' \)\) of the implicit function \(\( y^2 - xy = -2 \)\) is 0, indicating a constant slope with no change in relation to \(\( x \)\).

To find \(\( y' \)\)for the implicit function \(\( y^2 - xy = -2 \)\), we can differentiate both sides of the equation with respect to \(\( x \)\) using the chain rule. Let's go step by step:

Differentiating \(\( y^2 \)\) with respect to \(\( x \)\) using the chain rule:

\(\[\frac{d}{dx}(y^2) = 2y \cdot \frac{dy}{dx}\]\)

Differentiating \(\( xy \)\) with respect to \(\( x \)\) using the product rule:

\(\[\frac{d}{dx}(xy) = x \cdot \frac{dy}{dx} + y \cdot \frac{dx}{dx} = x \cdot \frac{dy}{dx} + y\]\)

Differentiating the constant term (-2) with respect to \(\( x \)\) gives us zero since it's a constant.

So, the differentiation of the entire equation is:

\(\[2y \cdot \frac{dy}{dx} - (x \cdot \frac{dy}{dx} + y) = 0\]\)

Now, let's rearrange the terms:

\(\[(2y - y) \cdot \frac{dy}{dx} - x \cdot \frac{dy}{dx} = 0\]\)

Simplifying further:

\(\[y \cdot \frac{dy}{dx}\) \(- x \cdot \frac{dy}{dx} = 0\]\)

Factoring out:

\(\[(\frac{dy}{dx})(y - x) = 0 \]\)

Finally, solving:

\(\[\frac{dy}{dx} = \frac{0}{y - x} = 0\]\)

Therefore, the derivative \(\( y' \)\) of the given implicit function is 0.

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There will be 221 highway signs on the road trip.

What is Total Length?

Whole Length (TL) is the measurement taken in a straight line, with the fish lying on its side, from the tip of the snout to the end of the tail (caudal fin).

The total length of the road trip is 13.2 hours.

Highway signs are posted every 0.06 hours. To find out how many highway signs are on the road trip, we can divide the total length of the road trip by the interval between each sign and then add one more sign for the end of the road trip:

(number of signs) = (total length of road trip) / (interval between signs) + 1

Substituting the values, we get:

(number of signs) = 13.2 / 0.06 + 1

(number of signs) = 220 + 1

(number of signs) = 221

Therefore, there will be 221 highway signs on the road trip.

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Answer:

5

Step-by-step explanation:

Answer:

a) 1.20f

Step-by-step explanation:

Because each flower costs $1.20, the total cost will be $1.20 per flower * the number of flowers.

hope this helps! <3

The expression 1.20f represents the total cost of the flower if Marcus is going to buy flowers for his aunt. Each flower costs $1.20 option (A) 1.20f is correct.

It is defined as the combination of constants and variables with mathematical operators.

It is given that:

Marcus is going to buy flowers for his aunt.

Each flower costs $1.20

The number of flowers Marcus buys is represented using the letter f.

The total cost can be framed in terms of f as follows:

Each flower price = $1.20

Total number of flowers = f

Total cost = 1.20f

The above expression represents the total cost of the flower,

Thus, the expression 1.20f represents the total cost of the flower if Marcus is going to buy flowers for his aunt. Each flower costs $1.20 option (A) 1.20f is correct.

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The rate of depreciation after 5 years is $122,853/5 years = $24,571.60 per year.

The estimated salvage value S (in dollars) of a company airplane after t years is given by S(t) = 300,000(0.9)^t.

a) To find the rate of depreciation (in dollars per year) after 1 year, we need to find the difference between the salvage value after 1 year and the original value of the airplane, and then divide that by 1 year. So, after 1 year, the salvage value is S(1) = 300,000(0.9)^1 = $270,000. The difference between the salvage value after 1 year and the original value is $300,000 - $270,000 = $30,000. Therefore, the rate of depreciation after 1 year is $30,000/1 year = $30,000 per year.

b) To find the rate of depreciation (in dollars per year) after 5 years, we need to find the difference between the salvage value after 5 years and the original value of the airplane, and then divide that by 5 years. So, after 5 years, the salvage value is S(5) = 300,000(0.9)^5 = $177,147. The difference between the salvage value after 5 years and the original value is $300,000 - $177,147 = $122,853.

Therefore, the rate of depreciation after 5 years is $122,853/5 years = $24,571.60 per year.

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Given that the Lorenz curve for a particular state is `y = 0.0003x^3 - 0.0126x^2 + 0.8357x`. The Lorenz curve represents the cumulative income distribution in the economy, while the line of perfect equality is a straight line y=x representing the income distribution if income were distributed equally.

The Gini coefficient (G) is half the relative mean absolute difference, and it can be calculated from the Lorenz curve. Thus, the formula for the Gini coefficient is `G = A / (A + B)`Where A represents the area between the line of equality and the Lorenz curve, and B represents the area below the Lorenz curve.

The Gini coefficient can be found as follows:To find A, subtract the area under the Lorenz curve from the area under the line of perfect equality within the limits of 0 and 1.  

We know that the line of perfect equality is y=x.Area under Lorenz curve from 0 to 1 = ∫[0,1] (0.0003x^3 - 0.0126x^2 + 0.8357x) dx= [0.000075x^4 - 0.0042x^3 + 0.41785x^2] from 0 to 1= (0.000075(1)^4 - 0.0042(1)^3 + 0.41785(1)^2) - (0.000075(0)^4 - 0.0042(0)^3 + 0.41785(0)^2)= 0.40865Area under line of perfect equality from 0 to 1 = (1/2)(1)(1)= 0.5Therefore, A = 0.5 - 0.40865= 0.09135To find B, find the area under the Lorenz curve from 0 to 1.

Area under Lorenz curve from 0 to 1 =  ∫[0,1] (0.0003x^3 - 0.0126x^2 + 0.8357x) dx= [0.000075x^4 - 0.0042x^3 + 0.41785x^2] from 0 to 1= 0.3255Therefore, the Gini coefficient, G= A / (A + B)= 0.09135 / (0.09135 + 0.3255)= 0.219Answer: 0.219

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Answer:

the equation is y=1x+0 or just y=1x

Step-by-step explanation:

nkt sure if that's what you wanted or not sorry

Answer:

y = \(-1x+0\)

Step-by-step explanation:

y = mx+b

y = \(-1x+0\)

Using the z-distribution, it is found that the margin of error for the 95% confidence interval is of 0.0889.

A confidence interval of proportions is given by:

\(\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In which:

The margin of error is given by:

\(M = z\sqrt{\frac{\pi(1-\pi)}{n}}\)

In this problem, we have a 95% confidence level, hence\(\alpha = 0.95\), z is the value of Z that has a p-value of \(\frac{1+0.95}{2} = 0.975\), so the critical value is z = 1.96.

The estimate and the sample size are given as follows:

\(\pi = 0.71, n = 100\)

Hence, the margin of error is:

\(M = z\sqrt{\frac{\pi(1-\pi)}{n}}\)

\(M = 1.96\sqrt{\frac{0.71(0.29)}{100}}\)

M = 0.0889.

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By using a maclaurin series to obtain the maclaurin series for the given function is  F(x) = x cos(5x) = \(1 - 25x^2/2! + 625x^4/4! - 15625x^6/6! + ...\)

To obtain the Maclaurin series for the function f(x) = x cos(5x), we need to write the Maclaurin series for cos(5x). The Maclaurin series for cos(x) is: \(cos(x) = 1 - x^2/2! + x^4/4! - x^6/6! + ...\)

Using this formula, we can substitute 5x for x and obtain the Maclaurin series for cos(5x): cos(5x) =\(1 - (5x)^2/2! + (5x)^4/4! - (5x)^6/6! + ...\)

\(= 1 - 25x^2/2! + 625x^4/4! - 15625x^6/6! + ...\)

We can substitute this series into the original function f(x) = x cos(5x) and obtain its Maclaurin series: f(x) = x cos(5x)

\(= x[1 - 25x^2/2! + 625x^4/4! - 15625x^6/6! + ...]\)

\(= x - 25x^3/2! + 625x^5/4! - 15625x^7/6! + ...\)

This is the Maclaurin series for the function f(x) = x cos(5x). It is obtained by substituting the Maclaurin series for cos(5x) into the original function and simplifying the resulting series. Maclaurin series are useful for approximating functions using polynomials. By truncating the series after a certain number of terms, we can obtain a polynomial that approximates the original function to a certain degree of accuracy. The accuracy of the approximation depends on the number of terms in the series that are used. The more terms we include, the more accurate the approximation will be.

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The mass of the solid is 7π/2 units.

The task is to calculate the mass of the solid.

Step-by-step solution: The solid occupies the region between the unit sphere at the origin and a sphere of radius 2 with the center at the origin. The spherical coordinates in 3D space are (r,θ,φ), where:r = radius, θ = polar angle, φ = azimuthal angle.

The equations of the given sphere are r=1 for the unit sphere and r=2 for the second sphere.

Using spherical coordinates, the solid can be defined as 1≤r≤2, 0≤θ≤2π, 0≤φ≤π.

The density is equal to the distance from the origin, i.e. ρ = r.

The mass of the solid is given by the triple integral ρ dV taken over the solid, where dV is the volume element in spherical coordinates.dV = r²sin φ dφdθdr

The limits for the triple integral are: 0 ≤ θ ≤ 2π, 0 ≤ φ ≤ π, and 1 ≤ r ≤ 2.M = ∭ρ dV = ∭r(r²sin φ) dφdθdr= ∫[0,2π]∫[0,π]∫[1,2] r³sin φ drdφdθ= ∫[0,2π]∫[0,π] -cos φ [r⁴/4]₁ ₂ drdφdθ= ∫[0,2π]∫[0,π] 7/4 cos φ dφdθ= ∫[0,2π] 7sin φ/4 ]₀  π dθ= 14π/4= 7π/2 units.

The mass of the solid is 7π/2 units.

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Answer:

The common ratio of this sequence is 1/3, so to find the next three terms we can continue multiplying by 1/3:

1/3 * 1/3 = 1/9

1/9 * 1/3 = 1/27

1/27 * 1/3 = 1/81

Therefore, the next three terms in the sequence are 1/9, 1/27, and 1/81.

1/9, 1/27, and 1/81 are the next 3 numbers in the Geometric sequence 9, 3, 1, 1/3

The given geometric sequence is 9, 3, 1, 1/3.

To find the common ratio, we divide any term by the previous term. Let's use the second and first terms:

3 ÷ 9 = 1/3

The common ratio is 1/3.

To find the next three terms, we can continue multiplying each term by the common ratio.

1/3 * (1/3) = 1/9

(1/3) * (1/9) = 1/27

(1/9) * (1/27) = 1/81

Therefore, the next three terms in the geometric sequence are 1/9, 1/27, and 1/81.

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If you failed to pay the minimum payment by the due date and are now being charged the penalty APR of 28.99%, your monthly interest charge on a balance of $1800 would be approximately $518.82. This is calculated as follows:

However, it is important to note that this calculation is an estimate and the actual amount of interest you would owe in one month could be different, depending on factors such as the number of days in the billing period and the daily interest rate. It is also worth noting that you were charged $6.31 in interest for purchases, which is separate from the interest charged on your unpaid balance.

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Answer:

i dont get it

Step-by-step explanation:

Answer:

Step-by-step explanation:

Multiplicative inverse is the reciprocal of a number.

Example:

15 x ? =1

The reciprocal of 15 is 1/15 therefore,

15 x 1/15 =1

You would cross cancel the 15 integers. Leaving 1 on bothsidea

Answer:

50x

Step-by-step explanation:

5x(7x + 3)

(7x + 3)= 10x

5x x 10x=50x