Which physical identity has the unit ms -square ?​

When researchers observe a correlation between two variables, they know that there is a relationship between these variables but they do not know if one variable is causing the other.

Correlation is a statistical measure that indicates the strength and direction of a linear relationship between two variables. It ranges from -1 to 1, with -1 indicating a perfect negative correlation, 0 indicating no correlation, and 1 indicating a perfect positive correlation.

A correlation between two variables, such as time spent studying and test scores, suggests that there is a relationship between these variables, but it does not indicate causality.

There could be other variables that influence both of these variables, or the relationship between them could be spurious.

Therefore, researchers must conduct further investigation to determine the cause-and-effect relationship. Researchers might use experimental designs to control for other variables and establish causality.

Additionally, researchers might use other statistical techniques, such as regression analysis, to further explore the relationship between variables.

In conclusion, when researchers observe a correlation between two variables, such as between the amount of time spent studying and test scores, they know that there is a relationship between these variables but they do not know if one variable is causing the other.

To establish causality, researchers must conduct a further investigation using experimental designs and other statistical techniques.

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Answer:

300

Step-by-step explanation:

500-20%        (60% is what he gets back because thats what hes selling it for)

20%=100

40%=200

60%=300

80%=400

100%=500

so 500-20%= 300

Answer:

Set your calculator to degree mode.

Draw a line from point O to a vertex of this octagon to form a right triangle.

tan(67.5°) = 17/x, so x = 17/tan(67.5°)

Area = (1/2)(34/tan(67.5°))(8)(17) = 957.7

\(\underset{ \textit{angle in degrees} }{\textit{area of a regular polygon}}\\\\ A=na^2\cdot \tan\left( \frac{180}{n} \right) ~~ \begin{cases} n=sides\\ a=apothem\\[-0.5em] \hrulefill\\ n=8\\ a=17 \end{cases}\implies A=(8)(17)^2\tan\left( \frac{180}{8} \right) \\\\\\ A=2312\tan(22.5^o)\implies A\approx 957.7\)

Make sure your calculator is in Degree mode.

Remember that

The length of the diagonal of the inscribed square is equal to two times the radius of the circle

In this problem

The radius is 2 units

therefore

The length of the diagonal is 4 units

Answer:

Leah has 80 less paychecks than the weekly person.

Step-by-step explanation:

Leah is getting 24 paychecks in 2 years, Weekly person gets 104 paychecks in 2 years, 104 - 24 = 80 paychecks.

The coordinates of point C are (-2.2,-1.2) which are calculated by using the given condition AC = 1/4(CB).

Given that point C is located between points A and B and that the distance between points A and C is one-fourth of the distance between points C and B.

We need to find the co-ordinate of the point C.

Let (x,y) be the co-ordinates of point C.

For x coordinate,

AC = 1/4(CB)

-4-x = 1/4(x-5)

x+ 0.25x = -2.75

x = -2.2

For y coordinate,

AC = 1/4(CB)

-2 - y = 1/4(y - 2)

-2= 1.25 y -0.5

1.25y = -1.5

y = -1.2

Therefore,  the coordinates of point C  are ( -2.2,-1.2) which are calculated by the given condition AC = 1/4(CB).

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Answer:

Equation:  2x + 5 + 6x + 15 = 92

Solution:  x = 9

m∠A =23°  m∠B = 69°

Step-by-step explanation:

measure of ∠B = 3(2x + 5) = 6x + 15

The sum of the angles = 92 = 2x + 5 + 6x + 15

92 = 8x + 20

72 = 8x

x = 9

m∠A = 2(9) + 5 = 18 + 5 = 23

m∠B = 6(9) + 15 = 54 + 15 = 69

Check:  23 + 69 = 92  and 23(3) = 69

The solution is :

Equation:  2x + 5 + 6x + 15 = 92

Solution:  x = 9

m∠A =23°  

m∠B = 69°

In Plane Geometry, a figure which is formed by two rays or lines that shares a common endpoint is called an angle. The two rays are called the sides of an angle, and the common endpoint is called the vertex.

here we have,

given that,

measure of ∠B = 3(2x + 5) = 6x + 15

The sum of the angles = 92 = 2x + 5 + 6x + 15

92 = 8x + 20

72 = 8x

x = 9

m∠A = 2(9) + 5 = 18 + 5 = 23

m∠B = 6(9) + 15 = 54 + 15 = 69

Check:  23 + 69 = 92  and 23(3) = 69

Hence, The solution is :

Equation:  2x + 5 + 6x + 15 = 92

Solution:  x = 9

m∠A =23°  

m∠B = 69°

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Answer:

89.5 cm

Step-by-step explanation:

circumference of full circle = π2r = 3.14 x 2 x 19 = 119.32 cm

(270/360)(119.32) = 89.5 cm

Check the picture below.

Answer:

14.1

Step-by-step explanation:

You add all of your numbers up, and then you divide by how many numbers you have.

The solution to the simultaneous equations log₂x − log₂y = 2 and log₂(x − 2y) = 3 is x = 8 and y = 4.

Given the following equations

log₂x − log₂y = 2

log₂(x − 2y) = 3

We can simplify the first equation by using the rule of logarithms that states:

log a - log b = log(a/b)

Using this rule, we have:

log₂(x/y) = 2

Rewriting this in exponential form, we get:

x/y = 2²

xy = 4

Multiplying both sides by y, we get:

x = 4y

Substituting this into the second equation, we get:

log₂(4y − 2y) = 3

log₂(2y) = 3

Rewriting this in exponential form, we get:

2y = 8

Dividing both sides by 2, we get:

y = 4

Substituting this value into the equation 2y = x, we get:

x = 2 * 4

x = 8

Hence, the solution to the simultaneous equations is x = 8 and y = 4.

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Complete question

Solve the simultaneous equations :

log2x − log2y = 2

log2(x − 2y) = 3

The statement provides two conditions to evaluate the relationship between x and y. The relationship between x and y cannot be determined based on the given information.

The statement provides two conditions to evaluate the relationship between x and y.

(1) x > y: This condition alone does not provide enough information to determine the relationship between x and y. We don't know the specific values or any other constraints that could help establish a comparison.

(2) x^3 > y: This condition alone also does not provide enough information to determine the relationship between x and y. The relationship between x and y depends on the values of x and y, which are not specified in the given statement.

Without any additional information or specific values for x and y, we cannot determine the relationship between x and y based on the given conditions. The comparison of x and y depends on their specific values and the relationship between them, which are not provided in the statement.

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Step-by-step explanation:

Circumference = πD

= 16π

= 50.265482457437

Area =

π( D )2

2

= 64π

= 201.06192982975

The Circumference of the circle is 50.24 meters and The area of the circle is 200.96 meters.

What is the Circumference of a Circle?

A circle's perimeter is known as its circumference. It is the circumference of the circle as a whole. A circle's circumference is calculated by multiplying its diameter by the constant. This measurement of a circle's diameter is necessary for someone crossing a circular park or for enclosing a circle. The units for the circumference, which is a linear variable, are the same as those for length. A circle is a closed, rounded shape whose border points are all equally spaced out from the center. The diameter and area of a circle are two crucial measurements of a circle.

What is the Area of a Circle?
The space a circle takes up on a two-dimensional plane is known as the area of the circle. Alternately, the area of the circle is the area included inside the circumference or perimeter of the circle. A = r×r×pi, where r is the circle's radius, is the formula for calculating a circle's surface area.

So, here in the question, It is given that:

The diameter of the circle (d) = 16 meters

and we know that the Radius of a circle is half of the diameter.

That is,

\(d = 2r\)

⇒\(r = \frac{16}{2}\)

⇒\(r = 8 m\)

So,

Circumference of the circle = 2πr

⇒Circumference = 2×3.14×8

⇒Circumference = 50.24 meters.

And, Area of the circle = π×r×r

⇒Area = 3.14×8×8

⇒Area = 200.96

Hence,

Circumference of the circle = 50.24 meters;

Area of the circle = 200.96 meters;

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Answer: 10n+9

Step-by-step explanation:

A drug administered 50 mg every three hours and the drug decays 12% per hour, the limiting value is approximately 416.67 mg.

To find the limiting value, we need to determine the amount of the drug remaining after each administration and observe how it approaches a stable value over time.

First, let's calculate the decay factor per hour. The drug decays by 12% per hour, which means it retains 88% of its previous value after each hour.

Decay factor = 1 - 0.12 = 0.88

Now, let's calculate the amount of drug remaining after each administration:

After 1st administration: 50 mg

After 2nd administration: 50 mg * 0.88 = 44 mg

After 3rd administration: 44 mg * 0.88 = 38.72 mg

After 4th administration: 38.72 mg * 0.88 = 34.04 mg

After 5th administration: 34.04 mg * 0.88 = 29.92 mg

As we can see, the amount of drug remaining decreases with each administration, approaching a limiting value. To find this limiting value, we can continue the pattern or use a formula.

The formula for the limiting value of a drug administered every three hours is:

Limiting value = dosage / (1 - decay factor)

In this case, the dosage is 50 mg, and the decay factor is 0.88.

Limiting value = 50 mg / (1 - 0.88) = 50 mg / 0.12 ≈ 416.67 mg (rounded to two decimal places)

Therefore, the limiting value is approximately 416.67 mg.

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Answer:

8.31

Step-by-step explanation:

Using the Pythagorean Theorem:

\(a^2+b^2=c^2\)

\(10^2+b^2=13^2\)

\(100+b^2=169\)

\(b^2=69\)

\(b = \sqrt{69}\)

\(b = 8.306623863\)

The side length for \(x\), rounded to the nearest hundredths, would be 8.31.

Answer:

x = 5

Step-by-step explanation:

Since the triangles are similar,

\(\frac{JL}{JT} =\frac{JK}{JU}\\\\\frac{72}{27} =\frac{64}{-4+4x}\\\\-4+4x = \frac{64*27}{72} \\\\-4+4x = 24\\\\4x = 20\\\\x = 5\)

Answer:

A energia renovável é a energia útil coletada de recursos renováveis, que são naturalmente reabastecidos em uma escala de tempo humana, incluindo fontes neutras em carbono como luz solar, vento, chuva, marés, ondas e calor geotérmico. O termo frequentemente também abrange biomassa, cujo status de carbono neutro está em debate.

Answer:

288q-185=236q-245

Answer:  288q - 185 = 236q - 245

Explanation:

A product is the result of multiplying. So "product of 288 and q" means "288 times q" or "288*q" or simply "288q".

The rest of the sentence your teacher gave you is probably self explanatory, so there's not much else to mention.

The unit rate in chapters per hour is 21/16 hours

Greg read 7/8 hours in 2/3 chapter

The unit rate can be calculated as follows

7/8= 2/3

1= x

cross multiply both sides

2/3x= 7/8

x= 7/8 ÷ 2/3

x= 7/8 × 3/2

x= 21/16

Hence 21/16 chapters is read in one hour

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V Prism is V = B × h=9.5*4=38

the volume of a sphere is V = 4/3 π r³=4/3*22/7*9.5=10.47

V=10.47+38=48.476

A measurement of three-dimensional space is volume. It is frequently expressed in numerical form using SI-derived units, as well as different imperial or US-customary units. In contrast to how much space the container actually occupies, the volume of a container is typically thought of as its capacity, or the amount of fluid it could hold. Volume was initially measured using naturally occurring vessels of a comparable shape and then with standardized containers. Arithmetic formulas can be used to quickly calculate the volume of several straightforward three-dimensional shapes. If a formula for the shape's boundary is known, it is possible to use integral calculus to determine the volumes of more complex shapes. objects in the zero, one, and two dimensions have no volume.

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Answer:

(-1, 3)

Pictures put below of the original point and the translation. I assumed the shape was a 1x1 square.

Hope it helps!

If a 20. 0 kg double coconut oscillates on a spring 42. 7 times each minute, then the spring constant of the spring is 689 N/m.

The spring constant, also known as the force constant or stiffness, is a measure of the elasticity of a spring or any other elastic object. It is defined as the force required to stretch or compress a spring by a unit distance.

The period of oscillation of the coconut can be calculated as:

\(T = \frac{60}{42.7} = 1.405\) seconds

The mass of the coconut is 20.0 kg, so we can use the formula for the period of oscillation of a mass on a spring:

\(T=2\pi \sqrt{\frac{m}{k}}\)

where m is the mass of the coconut and k is the spring constant.

Rearranging this formula gives:

\(k = (2\pi)^2 *(\frac{m}{T})^2\)

Substituting the values we have:

\(k = (2\pi)^2 *(\frac{20.0}{1.405})^2\)

k = 689 N/m (to three significant figures)

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Answer:

\(sss\)

Step-by-step explanation:

Because

AB = ED ( Side)

BC = EF ( Side )

AC = DF ( Side )

So,

ABC Triangle is congruent to EDF triangle ( SSS)

Please...Can I have the brainliest?

Answer:

i think its 0.43 but im not sure i hope this helps

Step-by-step explanation:

Answer:13/29

Step-by-step explanation:

\text{Fill out totals:}

Fill out totals:

Has a brother Does not have a brother Total

Has a sister 7 14 21

Does not have a sister 6 2 8

Total 13 16 29

\text{Number of students with a brother: 13}

Number of students with a brother: 13

\text{Number of students in the class: 29}

Number of students in the class: 29

\text{Probability: }\frac{13}{29}

Probability:  

29

13

​

According to the given statement the impact on Earth's temperature would be minimal.

If we were to place one 3W flickering flameless tealight on every square meter of Earth, and assuming both Earth and the tealight are blackbodies, the increase in Earth's temperature would be negligible. Blackbodies are idealized objects that absorb all incident radiation and emit radiation based on their temperature.

However, the Earth's surface area is about 510 million square kilometers, which is much larger than the area occupied by the tealights. Additionally, the 3W power output of each tealight is relatively low compared to the size of Earth. Therefore, the amount of energy emitted by the tealights would be insignificant compared to the overall energy balance of the Earth.

So, the impact on Earth's temperature would be minimal.

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The increase in Earth's temperature caused by placing one 3 W flickering flameless tealight on every square meter of Earth's surface can be calculated using the Stefan-Boltzmann Law, which describes the relationship between temperature and radiation emitted by a blackbody.

To determine the temperature increase, we need to compare the power output of the tealights to the Earth's radiative cooling rate. The Earth's radiative cooling rate can be estimated as the product of its effective radiating area and its effective radiative emissivity.

The effective radiating area of Earth can be approximated as its surface area, which is about 5.1 x 10^14 square meters. The effective radiative emissivity of Earth can be approximated as 0.612, considering its greenhouse effect.

Using the Stefan-Boltzmann Law, we can calculate the power emitted by the Earth as:

\(P = \sigma A \epsilon T^4\)

where P is the power emitted, σ is the Stefan-Boltzmann constant (approximately 5.67 x 10^-8 W/m^2K^4), A is the effective radiating area, ε is the effective radiative emissivity, and T is the temperature.

Let's assume the initial temperature of Earth is T0. By adding one tealight per square meter, the total power emitted by the tealights is 3 W/m^2 * (surface area of Earth). This additional power will cause Earth's temperature to increase until the power emitted by the tealights matches the radiative cooling rate.

Solving the equation P = σ * A * ε * T^4 for T, we can find the final temperature increase, ΔT, as:

\(\Delta T = \left(\frac{3 W/m^2 \times \text{surface area of Earth}}{\sigma A \epsilon}\right)^{1/4} - T_0\)

Calculating the numerical value of ΔT depends on the specific values used for Earth's surface area and initial temperature T0. However, it is worth noting that the temperature increase would likely be extremely small, considering the vastness of Earth's surface area and the relatively low power output of a single tealight.

In summary, by adding one 3 W flickering flameless tealight on every square meter of Earth's surface, the Earth's temperature would increase by a small amount. The exact temperature increase can be calculated using the Stefan-Boltzmann Law, taking into account Earth's radiative cooling rate and the power emitted by the tealights.

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Answer:

11)

complimentary angle

b = 90 - 65

b = 25º

12)

supplementary angle

b = 180 - 117

b = 63º

13)

360º in a circle

b = 360 - 244 -23

b = 93º

14)

vertical angle

b = 46º

The experimental probability that at least two heads would be gotten is 11 / 25.

The theoretical probability that at least two heads would be gotten is 1/2.

Probability calculates the odds that a random event would happen. The probability the event occurs is 1 and the probability that the event does not occur is 0.

Experimental probability is based on the result of an experiment that has been carried out multiples times.

Experimental probability = number of times at least two heads would be gotten / total number of tosses

( 5 + 6 + 6 + 5)/50 = 22/50 = 11 / 25

Theoretical probability = number of times at least two heads would be gotten / total number of possible outcomes

4 / 8 = 1/2

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Answer:

Reason 3: Vertical Angles Theorem

Reason 4: ASA theorem.

The error in the proof is in the third statement. The statement "∠TFS ≅ ∠PFQ" is not necessarily true, only that ∠TFS and ∠PFQ are corresponding angles. In order for the triangles to be congruent, we need all corresponding angles to be congruent.

The correct proof would be:

Given: ∠T ≅ ∠P, T F ≅ PF

Prove: ∆TFS ≅ ∆PFQ

Statements                 Reason(Justifications)

1. ∠T ≅ ∠P                           1. Given

2. T F ≅ PF                            2. Given

3. ∠TFS ≅ ∠PFQ                  4. Corresponding angles are congruent

4. TFS ≅ PFQ                        5. SAS Congruence Theorem

The reason for the error is that the third statement only applies to congruent triangles. In the given problem, we are only given that ∠TFS and ∠PFQ are corresponding angles, not that they are congruent. Therefore, we cannot conclude that the triangles are congruent based on this information alone.

The correct proof uses the SAS Congruence Theorem, which states that two triangles are congruent if two sides and the included angle are congruent. In this case, we have two sides (T F and PF) and the included angle (∠TFS) that are congruent, so we can conclude that the triangles are congruent.

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The size of angle x in degrees while considering the diagram of similar quadrilaterals is

x = 61 degrees

This is a term used in geometry to mean that the respective sides of the polygons are proportional and the corresponding angles of the polygon are congruent

In other words the sides are related in the sense of proportionality while the angles are equal to each other.

Having this in mind we can say that the corresponding angles of each position are equal and x = 61 degrees

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Answer:

35.65 feet

Step-by-step explanation:

Melanie connected a brown garden hose , a green garden hose and a black garden hose to make one long hose

The brown hose is 10.75 feet

The green hose is 16.4 feet

The black hose is 8.5 feet

Therefore the farthest distance that the one hose can reach can be calculated as follows

= 10.75 + 16.4 + 8.5

= 35.65 feet

Hence the farthest distance that one hose can reach is 35.65 feet