Anyone know how to figure this out??

In regression analysis , the error term ε is a random variable with expected value of 0.

What is regression analysis?

A set of statistical procedures known as regression analysis is used to estimate the relationships between a dependent variable and one or more independent variables.

Main Body:

In regression analysis, the model in the form is called regression model.

The mathematical equation relating the independent variable to the expected value of the dependent variable; that is, E(y) = β0 + β1x, is known as regression equation.

So the answer  to error term is 0.

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after dilating the point ( 9 , 9 ), we get the point as ( 3 , 3 ) with the scale factor as 1 / 3.

We are given a point:

( 9 , 9 )

We have the scale factor as:

1 / 3

We need to dilate the point using the scale factor.

So, we get that:

( 9 × 1 / 3 , 9 × 1 / 3 )

= ( 3 , 3 )

Therefore, after dilating the point ( 9 , 9 ), we get the point as ( 3 , 3 ) with the scale factor as 1 / 3.

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Answer:

15

Explanation:

20% of 15 is 3.

Answer:

\(85cm^{2}\)

Step-by-step explanation:

9 × 5 + 8 × 5

= 45 + 40

= 85

∴ The area of the shape is \(85cm^{2}\)

Answer:

is it a negative 1/2 if so the answer is 4

Step-by-step explanation:

you multiply -1/2 times a negative 3 u would get a positive 3/2=4

To use the ratio test, we need to take the limit of the absolute value of the ratio of consecutive terms:

| (n+1)th term / nth term | = | (n+1)!2(4n+3)x^n+1 / n!2(4n-1)x^n | = | (n+1)(n+2) / (4n+3)(4n+2) | * | x |

As n approaches infinity, the ratio simplifies to: | x | * 1/16

So, the ratio test tells us that the series converges when | x | < 16. The radius of convergence, R, is the distance from the center of the power series (which is 0) to the point where the series converges. So, R = 16.

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Therefore , the solution of the given problem of percentage comes out to be 32 liters after 60% increased.

Any value that may be expressed as a fraction of 100 is referred to as a percentage in mathematics. The acronyms "pct.," "pct," or "pc" are also occasionally used. However, the "%" symbol is typically used to denote it. The proportional amount has no dimensions and is flat. Percentages can be viewed as fractions because their numerator is 100. To indicate that a number is a percent, it needs to be followed by the percent symbol (%).

Here,

Given:

=> 20 liters is the given volume

It is increased by 60% ,

then the final volume is :

=> 20 + 60/100 *20

=> 20 + 0.6*20

=> 20 + 12

=> 32 liters

Therefore , the solution of the given problem of percentage comes out to be 32 liters after 60% increased.

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Answer:

The answer is 6>q

The highest level of detailed information about social scientific findings can typically be found in academic journals. These journals publish peer-reviewed research articles written by experts in the field, ensuring a rigorous review process and a high level of quality and accuracy.

Academic journals provide detailed information about the methodology, data analysis, and results of social scientific studies. They often include statistical analyses, charts, and graphs to support the findings. Additionally, these journals may also provide in-depth discussions of the implications and limitations of the research, as well as suggestions for future studies.

Accessing academic journals can sometimes require a subscription or payment, but many universities, libraries, and research institutions provide access to these resources. Some journals also offer open access options, allowing anyone to read and download their articles free of charge.

It's important to note that when using information about social scientific findings from academic journals, it is crucial to properly cite and reference the original source to avoid plagiarism. Academic integrity is a fundamental principle in research and scholarly writing.

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Answer:

Output is n - 4

Step-by-step explanation:

It follows a pattern.  Output = Input - 4

Answer:

19.6

I am not sure of my answer

Answer:

A) 95

B) 1140

Step-by-step explanation:

If you need explanation I will give one

Step-by-step explanation:

The scalar projection of a vector b onto a vector a is given by the dot product of b and the unit vector of a:

p = (b · u) * u

where u is the unit vector of a, and can be found by dividing a by its magnitude:

u = a / ||a||

The vector projection of b onto a is simply the scalar projection scaled by the unit vector:

p = p * u

For the given vectors a = ⟨-5,12⟩ and b = ⟨4,6⟩, we first find the unit vector u:

u = a / ||a|| = ⟨-5,12⟩ / ||⟨-5,12⟩|| = ⟨-5/13,12/13⟩

Next, we find the dot product of b and u:

p = (b · u) = ⟨4,6⟩ · ⟨-5/13,12/13⟩ = (4 * -5/13) + (6 * 12/13) = -20/13 + 72/13 = 52/13

So the scalar projection of b onto a is p = 52/13.

Finally, we find the vector projection by scaling the unit vector u by the scalar projection:

p = p * u = (52/13) * ⟨-5/13,12/13⟩ = ⟨-52/169,104/169⟩

So the vector projection of b onto a is p = ⟨-52/169,104/169⟩.

Answer: A. Obstacle

Step-by-step explanation: They have the same meaning.

Answer:

The length is 2.5ft

Step-by-step explanation:

V=w*h*l=4·6·2.5=60

Answer:

6x2 + 16x = 672

Reorder the terms:

16x + 16x2 = 672

Solving

16x + 16x2 = 672

Solving for variable 'x'.

Reorder the terms:

-672 + 16x + 16x2 = 672 + -672

Combine like terms: 672 + -672 = 0

-672 + 16x + 16x2 = 0

Factor out the Greatest Common Factor (GCF), '16'.

16(-42 + x + x2) = 0

Factor a trinomial.

16((-7 + -1x)(6 + -1x)) = 0

Ignore the factor 16.

Subproblem 1

Set the factor '(-7 + -1x)' equal to zero and attempt to solve:

Simplifying

-7 + -1x = 0

Solving

-7 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '7' to each side of the equation.

-7 + 7 + -1x = 0 + 7

Combine like terms: -7 + 7 = 0

0 + -1x = 0 + 7

-1x = 0 + 7

Combine like terms: 0 + 7 = 7

-1x = 7

Divide each side by '-1'.

x = -7

Simplifying

x = -7

Subproblem 2

Set the factor '(6 + -1x)' equal to zero and attempt to solve:

Simplifying

6 + -1x = 0

Solving

6 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '-6' to each side of the equation.

6 + -6 + -1x = 0 + -6

Combine like terms: 6 + -6 = 0

0 + -1x = 0 + -6

-1x = 0 + -6

Combine like terms: 0 + -6 = -6

-1x = -6

Divide each side by '-1'.

x = 6

Simplifying

x = 6

Solution

x = {-7, 6}

Step-by-step explanation:

The given quadratic function models the projectile of the object as it is

launched off the top of the building.

The interpretation of the function values are;

The appropriate domain is 0 ≤ x ≤ 7

Reasons:

The given function for the height of the object is f(x) = -16·x² + 16·x + 672

The domain is given by the values of x for which the value of y ≥ 0

Therefore, when -16·x² + 16·x + 672 = 0, we get;

-16·x² + 16·x + 672 = 0

16·(-x² + x + 42) = 0

-x² + x + 42 = 0

x² - x - 42 = 0

(x - 7)·(x + 6) = 0

x = 7, or x = -6

The minimum value of time, x is 0, which is the x-value at the top of the

building, and when x = 7, the object is on the ground.

Therefore;

The maximum value of f(x) = a·x² + b·x + c, is given at \(x = -\dfrac{b}{2 \cdot a}\)

Therefore;

We have;

\(x = -\dfrac{16}{2 \times (-16)} = \dfrac{1}{2}\)

Which gives;

\(f \left(\frac{1}{2} \right) = -16 \times \left(\dfrac{1}{2} \right)^2 + 16 \times \left(\dfrac{1}{2} \right)+ 672 = 676\)

The height of the building is given when the time, x = 0, as follows;

Height of building, f(0) = -16 × 0² + 16 × 0 + 672 = 672

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The formula for the volume of a cylinder is given by:

Where r is the base radius and h is the height.

If the volume is 448*pi cm³ and the height is 7 cm, we have:

Therefore the radius is equal to 8 cm.

Drawing this cylinder, we have:

The correct term that completes the sentence "When quantity supplied and quantity demanded are the same, a market is said to be in equilibrium".

Equilibrium is a condition in which the forces acting on a market are balanced, resulting in a stable price for a commodity. At the equilibrium price, there is neither excess demand nor excess supply, therefore the market is balanced.

The economic term equilibrium describes a situation in which the market price and the quantity demanded and supplied of a good or service are equal.

Equilibrium is a key concept in economics because it aids in determining the optimal price and quantity of a product that can be produced and sold in the market.

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Answer:

230??

Step-by-step explanation:

If C =270°

And b=40°

270-40= 230

Actually belive the one on top

The overall heat transfer coefficient (U) represents the combined effect of the individual resistances to heat transfer and depends on the design and operating conditions of the heat exchanger.

The concentric tube heat exchanger with a hot stream having a specific heat capacity of cH = 2.5 kJ/kg.K.

A concentric tube heat exchanger, hot and cold fluids flow in separate tubes, with heat transfer occurring through the tube walls. The parallel flow mode means that the hot and cold fluids flow in the same direction.

To analyze the heat exchange in the heat exchanger, we need additional information such as the mass flow rates, inlet temperatures, outlet temperatures, and the overall heat transfer coefficient (U) of the heat exchanger.

With these parameters, the heat transfer rate using the formula:

Q = mH × cH × (TH-in - TH-out) = mC × cC × (TC-out - TC-in)

where:

Q is the heat transfer rate.

mH and mC are the mass flow rates of the hot and cold fluids, respectively.

cH and cC are the specific heat capacities of the hot and cold fluids, respectively.

TH-in and TH-out are the inlet and outlet temperatures of the hot fluid, respectively.

TC-in and TC-out are the inlet and outlet temperatures of the cold fluid, respectively.

Complete answer:

A concentric tube heat exchanger is built and operated as shown in Figure 1. The hot stream is a heat transfer fluid with specific heat capacity cH= 2.5 kJ/kg.K ...

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If the hypotenuse of a right angle is 26 ft one leg is 10 ft, and the length of the other leg is 24 feet.

It is a triangle in which one of the angles is 90 degrees and the other two are sharp angles. The sides of a right-angled triangle are known as the hypotenuse, perpendicular, and base.

It is given that, the hypotenuse of a right angle is 26 ft one leg is 10 ft.

We have to find the length of the other leg in feet,

To the Pythagoras theorem, the square of the hypotenuse in a right-angled triangle is equal to the sum of the squares of the other two sides.

h²=p²+b²

26²=10²+b²

b²=576

b=24

Thus, if the hypotenuse of a right angle is 26 ft one leg is 10 ft, and the length of the other leg is 24 feet.

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It is not a function. which is the correct answer would be option (B)

Given that,

A function is shown in the figure with its domain and range.

To determine the inverse function.

The function is defined as a mathematical expression that defines a relationship between one variable and another variable.

Since the two preimages of the value 5 are present in the domain

So that is why the inverse function of a given function is not possible.

Therefore, It is not a function.

Hence, the correct answer would be option (B)

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Answer:

28.5 ft^3

58.3 m^3

Step-by-step explanation:

volume of a pyramid = 1/3 x length x width x height

Perimeter of a pyramid = 4 x length

10.1 = 4 x length

length = 10.1 / 4 = 2.525

1/3 x (2.525 x 2.525 x 13.4) = 28.5 ft^3

1/3 x (6.1 x 6.1 x 4.7) = 58.3 m^3

the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero

Answer: 6c-7

Step-by-step explanation:

Elisa's error is multiplying both sides of the equation by 4.

The correct solution to the equation is shown below and the value of x is 15/2 or 7.5.

In order to evaluate and solve this equation, we would have to apply the PEMDAS rule, where mathematical operations within the parenthesis (grouping symbols) are first of all evaluated, followed by exponent, and then multiplication or division from the left side of the equation to the right. Lastly, the mathematical operations of addition or subtraction would be performed from left to right.

In this scenario and exercise, the first step is adding 3 to both sides of the equation as follows;

x/2 - 3 = 3/4

x/2 - 3 + 3 = 3/4 + 3

x/2 = 15/4

By cross-multiplying, we have the following:

4x = 30

x = 30/4

x = 15/2 or 7.5

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Answer:

$100.00

Step-by-step explanation:

5 and above ex: 150 =200 140=100 under 5 keep the first letter then turn the other numbers into 0's 5 and above make the first number go up one then turn the rest of the numbers in to 0's

Answer: D

Isolate the variable by dividing each side by factors that don't contain the variable. This will give you the answer below:

X = 2 = Answer D

Answer:

D. 2

Step-by-step explanation:

One way by solving the equality:

\(////// 9x - 10 = 3x + 2////// 9x - 10 + 10 = 3x +2 + 10////// 9x - 3x = 3x + 12 - 3x////// 6x = 12///// 6x/6 = 12/6x = 2\)

I can't put each on a line (the site isn't allowing it), so the //// means it goes to another line.

Another way is by replacing x by each of the possible solutions and see which makes the equality true.