PLEASE HELP ME!!!!! NEED HELP ASAP!!!!!

Hi there!  

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I believe your answer is:  

2.952

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Here’s why:  

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\(0.4 * (8.6-1.22)\\\rule{150}{0.5}\\0.4 * 7.38\\\\\boxed{2.952}\)

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I am assuming that 8.6 - 1.22 are supposed to be together.

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Hope this helps you. I apologize if it’s incorrect.  

Answer: (60/13, 6/13)

Concept:

There are three general ways to solve systems of equations:

Here, we are going to use elimination since all the variables are in the corresponding position.

Solve:

Given

\(\left \{ {{2x+7y=-6} \atop {4x - y=18}} \right.\)

Multiply the first equation in order to eliminate [x]

\(\left \{ {{4x + 14y = -12} \atop {4x - y = 18}} \right.\)

Subtract the second equation from the first equation to eliminate [x]

\(14y-y=-12+18\)

\(13y=6\)

Divide 13 on both sides

\(13y/13=6/13\)

\(\boxed{y=\frac{6}{13} }\)

Substitute [y] value in order to get [x] value

4x - y = 18

4x - 6/13 = 18

4x = 18 + 6/13

4x = 240/13

\(\boxed{x=\frac{60}{13} }\)

Hope this helps!! :)

Please let me know if you have any questions

Step-by-step explanation:

That symbol is sigma, which is the sum of that equation from k = 1 to n = 4

Equation is 2(3^n-1)

Since we're going 1 to 4, the sum would be as follows (replacing n with 1, 2, 3, and 4

\(2( {3}^{1 - 1}) + 2( {3}^{2 - 1}) + 2( {3}^{3 - 1}) + 2( {3}^{4 - 1}) = {?}\)

\(2(1) + 2(3) + 2(9) + 2(27) = \)

\(2 + 6 + 8 + 54 = 70\)

Answer:

The answer is D Hope this helps

According to the given information, the sample period should be from 2010-2020.

a) Model specification

The model specification based on the scenario above is as follows:

SDF= f(T, TI, NL)

Where: SDF= Sustainable Development Framework

T= Tourism

TI= Technological innovation

NL= National leadership

b) Justification for the selection of the dependent and independent variables model:

Dependent variable: The dependent variable in this model is Sustainable Development Framework (SDF). The model seeks to develop a framework for sustainable development that would facilitate growth, environmental and socio-cultural sustainability.

Independent variables:

The independent variables are tourism sustainability, technological innovation, and quality of leadership. These variables drive economic development. The inclusion of tourism sustainability reflects its importance in the global economy and its potential to drive growth.

The inclusion of technological innovation reflects its potential to enhance productivity and create new industries. The inclusion of national leadership reflects the role of governance in promoting sustainable development and managing negative externalities.

c) Justification for the selection of the sample period:

The sample period should be selected based on the availability of data for the variables of interest. Ideally, the period should be long enough to capture trends and patterns in the data. However, it should not be too long that the data becomes obsolete or no longer relevant.

Additionally, the period should also reflect the context and relevance of the research question. Therefore, the sample period for this study should cover the last decade to capture the trends and patterns in the data and reflect the relevance of the research question.

The sample period should be from 2010-2020.

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The least squares regression line minimizes the sum of the mean squared error.

The least squares regression line, also known as the ordinary least squares (OLS) regression line, is a straight line that represents the best fit to a set of data points. It is used to model the relationship between a dependent variable (Y) and one or more independent variables (X) based on the principle of minimizing the sum of the squared differences between the observed data points and the predicted values on the line.

Mean squared error (MSE) is a measure of how well the regression line fits the data points.

It represents the average of the squared differences between the actual values and the predicted values by the regression line.

By minimizing the sum of the squared errors, the least squares regression line finds the line that best fits the data in a linear regression model.

This line is the one that provides the best fit in the sense of minimizing the overall error in the predictions.

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Answer: the answer is X= 12

Answer: X = 12

Step-by-step explanation:

6x - 21 = 4x + 3

get x by itself and i chose to subtract 4x on the right side

2x - 21 = 3

add 21 to both sides

2x = 24

x = 12

0.1574 is the probability that more than half of the sampled students live on the campus.

It is well known that 45% of students at a large university live on campus. A random sample of 100 students will be chosen by the head of student life. The fixed value that offers the potential of the number of successful outcomes is the sample proportion. The sample proportion is an estimate of the population proportion's actual value.

100 samples are taken.

45 percent of students reside on campus.

The normal probability distribution is used to assess the likelihood that more than half of the sampled students live on campus.

\(P(p^{O} > 0.5)=P(\frac{p^{o}-p }{\sqrt{\frac{p(1-p)}{n} } } > \frac{0.5-0.45 }{\sqrt{\frac{0.45(1-0.45)}{100} } })\)

=P(Z>1.00)

=0.1574 (Z- score table)

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Answer:

3000 + 700 + 20 + 1

Step-by-step explanation:

3721 = 3000 + 700 + 20 + 1

The largest value that f(4) can possibly be is 29.

The mean value theorem states that for a function f(x) that is continuous on the closed interval [a, b] and differentiable on the open interval (a, b), there exists a number c in the open interval (a, b) such that:

f(b) - f(a) = f'(c)(b - a)

In this case, we are given that f(0) = -3 and that f'(x) ≤ 8 for all values of x. To determine how large f(4) can possibly be, we can use the mean value theorem with a = 0 and b = 4:

f(4) - f(0) = f'(c)(4 - 0)

Substituting the given values:

f(4) - (-3) = f'(c)(4)

f(4) + 3 = 4f'(c)

Since f'(x) ≤ 8 for all values of x, we can say that f'(c) ≤ 8. Therefore:

f(4) + 3 ≤ 4f'(c) ≤ 4(8) = 32

Therefore, we have:

f(4) ≤ 32 - 3 = 29

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Answer:

it's arm will regenerate and grow back

plz mark me as brainliest

Answer:

B. The arm will regenterate

Answer:

The distance between these 2 points is 13.

Step-by-step explanation:

Picture the 2 points on a graph as a right triangle, where the hypotenuse of that right triangle is the distance between the points. It is very easy to find the length of the legs of that triangle, and you can use those legs to calculate the length of the hypotenuse.

First, find the vertical distance, or the distance between the y-coordinates. Either just look at a graph and count, or subtract them.

\(-6-6=-12\)

Distance is an absolute value from 0, so -12 is the same as 12.

Next, find the horizontal distance between the x-coordinates.

\(1--4=5\)

Now, we have the length of the legs, 5 and 12. Use the pythagorean theorem to find the length of the hypotenuse:

\(a^2+b^2=c^2\\5^2+12^2=c^2\\25+144=c^2\\c^2=169\\c=\sqrt{169}\\c=13\)

The distance between these 2 points is 13.

The correct answer is option O: 5 V.

To determine the average voltage (Vavg) given a peak-to-peak voltage (Vpp) of 10 V, we need to consider the relationship between Vavg and Vpp in an alternating current (AC) waveform.

The average voltage of an AC waveform is related to its peak-to-peak voltage by the formula: Vavg = 0.5 * Vpp.

Applying this formula to the given Vpp of 10 V, we can calculate the Vavg as follows: Vavg = 0.5 * 10 V = 5 V.

The average voltage is equal to half of the peak-to-peak voltage, resulting in an average voltage of 5 V for a Vpp of 10 V.

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Answer:

x ≥ 397

Step-by-step explanation:

x represents the rainfall in inches. The question seems incomplete, but this is what i got from the info you provided

Answer:

Step-by-step explanation:

True

Answer:

New cut off salary = 30,592

Step-by-step explanation:

Given:

Normal distributed mean = $37,000

Standard deviation = $5000

Cut off salary = 10%

Find:

New cut off salary

Computation:

Z - left tale value of 10% is -1.2816

Corresponding x-value using x = zs + u

New cut off salary = (-1.2816)(5,000) + 37,000

New cut off salary = -6,408 + 37,000

New cut off salary = 30,592

Chebyshev's inequality produces an approximate probability because it provides an upper bound on the probability of deviation from the mean based on the standard deviation, without relying on specific distributional assumptions.

Chebyshev's inequality is a mathematical inequality that provides an upper bound on the probability that a random variable deviates from its mean by a certain amount. It states that for any random variable with a finite mean and variance, the probability that the random variable deviates from its mean by more than a certain number of standard deviations is bounded by a specific value.

The inequality is given by:

P(|X - μ| ≥ kσ) ≤ \(1/k^2\)

where X is the random variable, μ is its mean, σ is its standard deviation, and k is a positive constant.

Chebyshev's inequality is considered an approximate probability because it provides a conservative bound on the probability of deviation. It guarantees that the probability of a deviation beyond k standard deviations is no more than 1/k^2. However, it does not provide the exact probability of such deviations.

The approximation arises because Chebyshev's inequality applies to any distribution with a finite mean and variance, regardless of its specific shape. It does not rely on any assumptions about the underlying distribution, making it a very general result. However, this generality comes at the cost of accuracy. The inequality does not take into account the specific characteristics or shape of the distribution, so it may be a loose bound in some cases.

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Answer:

Here we do not have the options, so I will answer in a general way.

We have two statements:

p = A number is greater than 25

q = A number is less than 35

We want to have:

p ^ q is true

This means:

p and q are true.

So, we need to find a number such that both conditions are meet, so we need to find a number N such that

The number N is greater than 25  (from p)

The number N is less than 35 (from q)

So N can be any number between 25 and 35

So, some of the possible values of N are:

N = 26

N = 27

N = 28.6

N = 33

N = 34

Concluding, any number N ∈ (25, 35) can be a solution.

(Note that N = 25 and N = 35 are not solutions)

If the probabilty of Event E is p, then,

the probability of Complement of Event E would be "1 - p".

So, to get the complement's probability, we subtract the normal probability from "1".

Hence, the probabilty of the complement would be:

Step-by-step explanation:

Multiply the first equation by 2 and add.

Answer:none of the above

Step-by-step explanation:

The maximum Z is 1800 and the value of X₁ and X₂ at the optimal solution : X₁ = 5 and X₂ = 3.

The constraints for the linear programming problem:

30X₁ + 70X₂ ≤ 210

20X₁ + 10X₂ ≤ 100

X₁, X₂ ≥ 0

First we draw the graph for equations 30X₁ + 70X₂ = 210 and 20X₁ + 10X₂ = 100

Consider equation 30X₁ + 70X₂ = 210

For X₁ = 0,

70X₂ = 210

X₂ = 3

For  X₂ = 0,

30X₁ = 210

X₁ = 7

This means, the line 30X₁ + 70X₂ = 210 passes through (0, 3) and (7, 0) as shown in the following graph.

So, 30X₁ + 70X₂ ≤ 210  includes the region below the line.

Consider equation 20X₁ + 10X₂ = 100

For X₁ = 0,

10X₂ = 100

X₂ = 10

For  X₂ = 0,

20X₁ = 100

X₁ = 5

This means, the line 20X₁ + 10X₂ = 100 passes through points (0, 10) and (5, 0) as shown in the following graph.

so, an inequality 20X₁ + 10X₂ ≤ 100 includes the region below the line.

From the figure, (0, 3) and (5,0) are feasible corner points.

Thus the optimal solution is:  X₁ = 5 and X₂ = 3

For X₁ = 5 and X₂ = 3,

Z = 300X₁ + 100X₂

Z = 300(5) + 100(3)

Z = 1500 + 300

Z = 1800

Therefore, the maximum value of Z is 1800

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Uranium-238 has a half-life of 4.5 billion years. Therefore, half of the original number of uranium atoms decay in 4.5 billion years. After another 4.5 billion years, half of the remaining atoms will decay.

The number of remaining uranium atoms after a specific amount of time can be found using the following formula:N = N0 x (1/2)t/Twhere:N0 is the initial number of atomsN is the number of atoms after time t has passedT is the half-life of the element is the amount of time that has passedIn this problem, we know that the sample initially contained 1.9 x 10^18 uranium-238 atoms when the universe was formed 13.8 billion years ago. We want to find out how many uranium-238 atoms it contains today, which is 13.8 billion years after it was formed. Since the half-life of uranium-238 is 4.5 billion years, we can calculate the number of remaining atoms as follows:\(N = N0 x (1/2)t/TN = (1.9 x 10^18) x (1/2)^(13.8/4.5)N = 6.58 x 10^17\)Therefore, the sample of uranium-238 would contain \(6.58 x 10^17\)atoms today.

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use sin

sin(50) = x/6

sin(50) x 6 = x

x = ~4.5963

Answer:

Ahmed shoevked more than sheldon

Answer:

1.18x=y

Step-by-step explanation:

x= amount of pounds of kidney beans

y= the cost

According too the question, to solve this problem, let's break down the given equation step by step:

We are given:

∫[3 to 6] f(x)dx = ∫[3 to 5] 6f(x) dx + ∫[5 to 6] f(x) dx

According to the Fundamental Theorem of Calculus, if F is an antiderivative of f, then the definite integral of f from a to b is F(b) - F(a). Using this property, we can rewrite the equation as follows:

F(6) - F(3) = 6F(5) - 6F(3) + F(6) - F(5)

Notice that F(6) and F(5) appear on both sides of the equation, so they cancel out. Also, we know that f(3) = 18 and f(6) = 9. Therefore, we can rewrite the equation as:

9 - 18 = 6F(5) - 6F(3) + 9 - F(5)

Simplifying further:

-9 = 6F(5) - 6F(3) - F(5)

Rearranging the terms:

-9 = 5F(5) - 6F(3)

Now, we can solve for the expression 3∫[3 to 6] f(x)dx:

3∫[3 to 6] f(x)dx = 3[F(6) - F(3)] = 3(9 - 18) = 3(-9) = -27

Therefore, 3∫[3 to 6] f(x)dx = -27.

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Answer:   Therefore, the answer is:

a) ONE TRIANGLE

b) The sides 4 cm, 6 cm, and 9 cm can form a single triangle.

Step-by-step explanation:

a) There is exactly ONE TRIANGLE that can be constructed with sides measuring 4 cm, 6 cm, and 9 cm.

b) To determine the number of triangles that can be formed from three given sides, we can use the triangle inequality theorem which states that the sum of any two sides of a triangle must be greater than the third side.

Let's check if the given sides satisfy this inequality:

4 cm + 6 cm > 9 cm (True)

4 cm + 9 cm > 6 cm (True)

6 cm + 9 cm > 4 cm (True)

Since all three inequalities are true, we can conclude that a triangle can be formed using these three sides.

Now, let's determine if there is only one possible triangle that can be formed or if there are more than one. To do this, we can use the fact that the largest side of a triangle must be smaller than the sum of the other two sides. If this is not the case, then it's not possible to form a triangle.

In this case, the largest side is 9 cm. Let's check if it's smaller than the sum of the other two sides:

4 cm + 6 cm = 10 cm (True)

Since 9 cm is smaller than the sum of the other two sides, we can conclude that it's possible to form a triangle, but there is only one possible triangle that can be formed.