A linear model is appropriate for this data set.
To construct a scatterplot, we plot the pH values on the x-axis and the dry matter yields on the y-axis. After plotting the data points, we can see that there is a positive linear relationship between pH and dry matter yield.
To verify whether a linear model is appropriate, we can look at the scatterplot and check if the data points roughly follow a straight line. In this case, we can see that the data points appear to follow a linear pattern, so a linear model is appropriate.
We can also calculate the correlation coefficient (r) to see how strong the linear relationship is. The correlation coefficient is a value between -1 and 1 that measures the strength and direction of the linear relationship.
In this case, the correlation coefficient is 0.87, which indicates a strong positive linear relationship between pH and dry matter yield.
Therefore, we can conclude that a linear model is appropriate for this data set.
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I WILL FAIL PLSSS HEEELP
you must show and check all work on your own paper.
Explain the error:
144x2 - 100
(12x + 10)(12x - 10)
2(6x + 5)(6x - 5)
[tex]{ \qquad\qquad\huge\underline{{\sf Answer}}} [/tex]
The given steps are :
[tex]\qquad \sf \dashrightarrow \: 144 {x}^{2} - 100[/tex]
[tex]\qquad \sf \dashrightarrow \: (12x + 10)(12x - 10)[/tex]
[tex]\qquad \sf \dashrightarrow \: 2(6x + 5)(6x - 5)[/tex]
The error is in third step ~
Correct method :
[tex]\qquad \sf \dashrightarrow \: (12x + 10)(12x - 10)[/tex]
[ take 2 common out of both ]
[tex]\qquad \sf \dashrightarrow \:2 (6x + 5) \sdot2(6x - 5)[/tex]
[ 2 times 2 will be 4 ]
[tex]\qquad \sf \dashrightarrow \: 4(6x +5 )(6x - 5)[/tex]
What are the 3 main types of substitution reaction?
Answer:
There are three general classes of substitution reactions, depending on the following factors.
Reactant or substituent.
Intermediate – carbocation, carbanion, or free radical.
Substrate (compound) – aliphatic or aromatic.
Step-by-step explanation:
Hope it helps!
Why is the range of pixel values 0 255?
The range of pixel values in digital images is typically 0-255 because it corresponds to the number of bits used to represent each pixel. Most image file formats use 8 bits per color channel (red, green, and blue) to represent each pixel, and 8 bits can store a maximum of [tex]2^8[/tex] = 256 different values, with one of the values being reserved for transparency.
When working with 8-bit images, each color channel can take on one of 256 different values, from 0 to 255. This is known as an 8-bit color depth. Each pixel in the image is represented by a combination of red, green, and blue values, so the total number of possible colors is 256 x 256 x 256 = 16,777,216.
The use of 8-bit color depth allows for a wide range of colors to be represented in an image, while also being small enough to be easily stored and transmitted.
Also, it's worth mentioning that with the development of technology, the use of high-bit color-depth images has become more common in the field of photography, digital art, and video, where 16-bit and 32-bit color depths are frequently used.
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What is an image Grade 7?
An image is a representation of something that can be seen, such as a picture or drawing.
An image can be thought of as a 2-dimensional array of pixels, where each pixel has a specific color value. Each color value can be represented by numerical values, such as red, green, and blue (RGB) values.
In mathematics, we can think of an image as a function that maps the x and y coordinates of a pixel to its color value. For example, f(x,y) = (R, G, B) where R, G, B are the red, green, and blue values of that pixel.
We can also think of an image as a grid of points, where each point represents a pixel.
It can be a photograph, drawing, graphic, or any other visual representation of something. Images can be created using different techniques, such as painting, drawing, or photography.
They can also be digital, such as a computer-generated image or a photograph that has been scanned into a computer. Images are used in many different fields, such as art, science, advertising, and education.
Images can be found in various forms such as on billboards, posters, books, magazines, newspapers, websites, and social media platforms. They can also be used to communicate information, tell a story, or express an idea.
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5. Are the triangles congruent? If yes, can you
prove it by SSS, SAS, AAS, ASA or HL?
1-used to find the missing side of a right triangle.
2-the amount of space a space takes up.
3-the distance around the outside of a shape.
4-three numbers that form a right triangle.
5-the side of a right triangle that is opposite from the right
angle; the longest side of a right triangle
6-used to prove whether a triangle is a right triangle.
7-to find the diagonal distance on a coordinate plane, create
making the diagonal distance the
hypotenuse.
8-the sides of a right triangle that are adjacent (next to) to
the right angle.
(Pythagorean theoram,perimeter,area,hypotenuse,right triangle,legs,pythagorean triple,pythagorean theorem converse)
Answer:
1-Pythagorean Theorem
2-Area
3-Perimeter
4-Pythagorean Triple
5-Hypotenuse
6-Pythagorean Theorem Converse
7-Pythagorean Theorem
8-Legs
The Pythagorean Theorem is a mathematical formula used to find the length of the missing side of a right triangle. It states that the sum of the squares of the lengths of the two shorter sides (known as the legs) of the triangle is equal to the square of the length of the longest side (the hypotenuse).
The area of a space refers to the amount of two-dimensional space that it occupies. For example, the area of a rectangle can be found by multiplying its length by its width.
The perimeter is the distance around the outside of a shape, often used in polygons and closed figures.
A Pythagorean triple is a set of three integers a, b, and c that satisfy the equation a^2 + b^2 = c^2. These integers correspond to the three sides of a right triangle, with c being the hypotenuse.
The hypotenuse is the side of a right triangle that is opposite from the right angle and is also the longest side of a right triangle.
The Pythagorean Theorem Converse states that if the sum of the squares of the two shorter sides of a triangle is equal to the square of the length of the longest side, then the triangle is a right triangle.
The Pythagorean Theorem can be used to find the diagonal distance on a coordinate plane. Given the coordinates of two points, the theorem can be used to calculate the distance between them by making the diagonal distance the hypotenuse.
The legs of a right triangle are the two sides of the triangle that are adjacent (next to) to the right angle.
Uday Tahlan
The senior class needs to rent round and square tables for their class night. They need a minimum of 65 tables altogether. Each round table weighs 12 pounds, and each square table weighs 9 pounds. The maximum weight that a delivery truck can carry is 2000 pounds
Write and graph a system of linear inequalities to model the possible number of tables that the senior class can rent. Use quadrant one only for your graph.
The system of inequalities that shows the possible number of tables that the senior class can rent is x + y ≥ 65 and 12x + 9y ≤ 2000
What is an equation?An equation is an expression that shows the relationship between variables and numbers.
Inequalities are used to show the nonequal comparison of numbers and variables.
Let x represent the number of round tables and y represent the number of square tables.
Each round table weighs 12 pounds, and each square table weighs 9 pounds. They need a minimum of 65 tables altogether, hence:
x + y ≥ 65 (1)
Also, The maximum weight that a delivery truck can carry is 2000 pounds, hence:
12x + 9y ≤ 2000 (2)
The system of inequalities is x + y ≥ 65 and 12x + 9y ≤ 2000
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As a block of ice melts, its weight changes from 1.5 lbs to .25lbs. This change takes a half of an hour. At what rate does the weight of the ice change?
The weight of the ice changes at the rate of 1.25 lbs. in a half of an hour.
What is rate of change?How quickly something evolves over time is referred to as its rate of change (ROC).
Given:
As a block of ice melts,
its weight changes from 1.5 lbs to .25lbs.
That means, the total decay,
1.5 + n = 0.25
n = 1.25 lbs.
This change takes a half of an hour.
So, the rate of change,
1.25 lbs. in a half of an hour.
Therefore, the rate of change is 1.25 lbs. in a half of an hour.
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Why is 2 and 3 a prime number?
Yes, number 2 and number 3 represents they are prime number as the number has only two factors one and the number itself.
As given in the question,
Given numbers are equal to :
2 and 3.
Prime numbers are those number which has only two factors one and the number itself.
Prime number does not get exactly divided by any other number except itself and one.
Factors of 2 are as follow :
1 and 2
Factors of 3 are as follow :
1 and 3
Therefore, number 2 and number 3 are considered a prime numbers as both the numbers has only two factors one and the number itself.
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The playground in Alecs neighborhood in Draw below. What is the perimeter of the playground
Answer:
D. 28 units
Step-by-step explanation:
Add up all the units on each side
Going clockwise starting from the top:
5, 5, 1, 2, 3, 1, 3, 8
Add them all together
5 + 5 + 1 + 2 + 3 + 1 + 3 + 8 = 28
solve by elimination 4x²+x-y=0 and -x²-5x+y-9=0
The values of x are [tex]\frac{\sqrt{31} + 2 }{3} , \frac{-\sqrt{31} + 2 }{3}[/tex] and y are [tex]\frac{19\sqrt{31} + 146 }{9} , \frac{-19\sqrt{31} + 146 }{9}[/tex].
Given Equations,
4x² + x - y = 0 ...(1)
-x² - 5x + y - 9 = 0
The above equation can be written as:
-x² - 5x + y = 9 ...(2)
Using the elimination method, the second term of both equations can be eliminated by adding the equations.
Therefore,
4x² + x - y = 0
-x² - 5x + y = 9
_____________
3x² - 4x = 9
Using the Completing the square method,
3x² - 4x = 9
Divide the equation by 3 on both sides,
[tex]x^{2} - \frac{4}{3}x = 3[/tex]
[tex]x^{2} - \frac{4}{3}x + (\frac{2}{3}) ^{2} = 3 + (\frac{2}{3}) ^{2[/tex]
[tex]( x - \frac{2}{3})^{2} = 3 + \frac{4}{9}[/tex]
[tex]( x - \frac{2}{3})^{2} = \frac{31}{9}[/tex]
[tex]( x - \frac{2}{3}) = \sqrt{\frac{31}{9}}[/tex]
[tex]x = \frac{\sqrt{31} }{3} + \frac{2}{3} , - \frac{\sqrt{31} }{3} + \frac{2}{3}[/tex]
[tex]x = \frac{\sqrt{31} + 2 }{3} , \frac{-\sqrt{31} + 2 }{3}[/tex]
Now, Put the value of x in equation (1), we get the value of y.
4x² + x - y = 0
y = 4x² + x
[tex]y = 4( \frac{\sqrt{31} + 2 }{3})^{2} + \frac{\sqrt{31} + 2 }{3} , 4( \frac{-\sqrt{31} + 2 }{3})^{2} + \frac{-\sqrt{31} + 2 }{3}[/tex]
[tex]y = \frac{19\sqrt{31} + 146 }{9} , \frac{-19\sqrt{31} + 146 }{9}[/tex]
Therefore,
the values of x are [tex]\frac{\sqrt{31} + 2 }{3} , \frac{-\sqrt{31} + 2 }{3}[/tex] and y are [tex]\frac{19\sqrt{31} + 146 }{9} , \frac{-19\sqrt{31} + 146 }{9}[/tex].
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HELP PLEASE ASAP‼️‼️‼️
If you translate the cubic parent function, F(x) = x3, down 7 units, what is the
equation of the new function?
A. H(x) = x³ + 7
B. K(x) = (x+7)³
C. J(x) = (x-7)³
D. G(x) = x3 - 7
Answer:
f
Step-by-step explanation:
Imagine that you are plotting points on a coordinate plane. each axis is labeled with integers from −5 to 5. explain how you would plot a point at the location (−21 2 , −4). write three to four sentences.
The coordinate of a point is its location on a grid. The point will be located halfway between -2 and -3 on the x-axis, on -4 on the y-axis
Coordinate points:
A set of values that show an exact position on graphs is usually a pair of numbers. The first number shows the distance along, and the second number shows the distance up or down.
One number line is horizontal and is called the x-axis, and the other number line is the vertical number line and is called the y-axis. The two axes meet at a point called the origin.
The coordinate is given as:
[tex]Point=(2\frac{1}{2} ,-4)[/tex]
Express as decimals
Point=(-2.5,-4)
The above point means that:
X=-2.5
y=-4
Therefore, The point will be located halfway between -2 and -3 on the x-axis, on -4 on the y-axis
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What is the product of (−21)(19)(−5)?
−1,995
1,995
−294
86
The product of (−21)(19)(−5) is 1995.
What is product?
In mathematics, the product is the result of multiplying two or more numbers or expressions together. The product is an important concept in mathematics and is used in many areas, including arithmetic, algebra, calculus, and geometry.
The problem asks us to find the product of (−21)(19)(−5). To solve this problem, we can multiply the three numbers together in any order because multiplication is associative.
So, let's multiply the numbers from left to right:
(−21)(19)(−5) = (−399)(−5)
We then simplify this expression by multiplying -399 and -5 together:
(−399)(−5) = 1995
Therefore, the product of (−21)(19)(−5) is -1995.
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What is the exponential form of 2 * 2 * 2 * 2?
Answer: 16
Step-by-step explanation:
2 x 2 = 4 2 x 4 = 8 2 x 8 = 16
Answer:
2*2*2*2 in exponential form is 2^4
Step-by-step explanation:
2*2*2*2= 16
2^4=16
Hope this helps :D
(6x - 7) - (2x +5) =
Answer:
4x-12
Step-by-step explanation:
do -1(2x+5) -> -2x-5
combine like terms
6x - 7 - 2x - 5 -> 4x -12
Answer:
4(x-3)
Step-by-step explanation:
6x - 7 - 1(2x + 5)
6x - 7 - 2x - 5
6x - 7 - 2x - 5
6x - 12 - 2x
6x - 12 - 2x
4x - 12
4 (x - 3)
ANSWER
4(x- 3)
What is social inequality class 9?
Social inequality in class 9 refers to the unequal distribution of social status, power, and privilege among individuals or groups within a society. It can manifest in various forms, such as discrimination, prejudice, and bias, which can limit opportunities and access to resources for certain groups.
In class 9, social inequality may be discussed in relation to various social issues, such as racial and ethnic inequality, gender inequality, and inequality based on sexual orientation, disability, and age. These issues can have a significant impact on individuals and groups, leading to reduced opportunities, access to resources, and lower quality of life.
Social inequality in class 9 may also be discussed in relation to broader societal issues, such as poverty, unemployment, and lack of access to healthcare and education. These issues can contribute to a cycle of disadvantage and can perpetuate social inequality.
It's worth noting that social inequality is often interconnected with other forms of inequality such as economic and educational inequality, and understanding how these inequalities interact is crucial to understand and address social inequality.
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please help me PLEASE IF EVEN IF YOU HAVE A ANSWER KEY
Answer:
You have to add them all you will get 2,455 then you divide by how many numbers are there so there's 7 numbers so 2,455 divided by 7 equals=350 is the answer rounded to the nearest tenth
Express the absolute value function f(x)=9|x| as a piecewise-defined function.
Answer:
[tex]f\left(x\right)=\begin{cases}-9x&x\: < \:0\\ \:\:\:9x&x > \:0\end{cases}[/tex]
Step-by-step explanation:
The first thing to note is that absolute value functions are piecewise functions.
A piecewise function is a function in which more than one formula is used to define the output over different pieces of the domain or inputs(in this case the x-values).
In this case, the absolute value function is
[tex]f(x) = 9|x|[/tex]
To write this function as a piecewise function you have to use the definition of [tex]f(x) = |x|[/tex] :
[tex]f\left(x\right)=\begin{cases}-x&x\: < \:0\\ \:\:\:x&x > \:0\end{cases}[/tex]
Applying this to [tex]9|x|[/tex] we multiply each of the parts by 9 to get
[tex]f\left(x\right)=\begin{cases}-9x&x\: < \:0\\ \:\:\:9x&x > \:0\end{cases}[/tex]
At [tex]|x| = 0, f(x) = 9|x| = 0\\[/tex]
The graph of the function is attached for easier understanding
During a basketball practice, Deenice attempted 80 free throws and was successful on 25% of them. How many successful free throws did she make?
Answer:20
Step-by-step explanation:
80 times .25 or 1/4 is 20
Answer:20
Step-by-step explanation:
So, 25% is 1/4 of 100, so if you divide 80 by 4 you get 20, which is 25% of 80.
Another way to do this is on a calculator, do 80 x 25 / 100, this works with finding the percentage of anything!
Alicia waterson makes a deposit at an ATM and receives $50 in cash.The receipt for her total deposit shows $793. The checks deposited totaled twice the currency deposited. She did not deposit any coins. How much in currency did she deposit?
Answer:
Let x be the amount of currency deposited
The checks deposited were 2x
The total deposit is x+2x = 3*x = 793
x = 793/3 = $264
So, Alicia deposited $264 in currency.
Polygon ABCD with vertices at A(−4, 6), B(−2, 2), C(4, −2), D(4, 4) is dilated using a scale factor of 1/4 to create polygon A′B′C′D′. Determine the vertices of polygon A′B′C′D′.
A′(−0.8, 1.2), B′(−0.4, 0.4), C′(0.8, −0.4), D′(0.8, 0.8)
A′(−1, 1.5), B′(−0.5, 0.5), C′(1, −0.5), D′(1, 1)
A′(−2, 3), B′(−1, 1), C′(2, −1), D′(2, 2)
A′(−3, 4.5), B′(−1.5, 1.5), C′(3, −1.5), D′(3, 3)
For polygon ABCD with vertices at A(−4, 6), B(−2, 2), C(4, −2), D(4, 4) after dilation the vertices will be
A′(−1, 1.5), B′(−0.5, 0.5), C′(1, −0.5), D′(1, 1)How to find the coordinates of the imageDilation is a method of transformation that magnify or shrink the preimage depending on the scale factor
The transformation rule for dilation is as follows
(x, y) for a scale factor of r → (rx, ry)
following similar procedure for the given problem, for r = 1/4 we have
preimage image
A (-4, 6) → (1/4 * -4, 1/4 * 6) → A' (-1, 3/2)
B (−2, 2) → (1/4 * -2, 1/4 * 2) → B' (-1/2, 1/2)
C (4, −2) → (1/4 * 4, 1/4 * -2) → C' (1, -1/2)
D (4, 4) → (1/4 * 4, 1/4 * 4) → D' (1, 1)
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Answer:
Third Answer Choice....A′(−1, 1.5), B′(−0.5, 0.5), C′(1, −0.5), D′(1, 1)
Step-by-step explanation:
1/4 = 0.25
Multiply by every number
A' = ( -1, 1.5 )
B' = ( -0.5, 0.5 )
C' = ( 1, -0.5)
D' = (1, 1)
If it says its wrong i dont even know whys that, because this is the only way i know that everyone can solve easily
4 (x + 3) = 3x + 2 + x
Answer:
No Solution
Step-by-step explanation:
4(x+3)=3x+2+x
4x+12=3x+2+x
4x+12=4x+2
0=-10
The equation has no solutions.
Hope this helped! :)
12 ÷ 3 x 4
What do you do first?
Answer:
do 3*4 then divide by 12
Step-by-step explanation:
Does anyone know what this is
The value of m from the exponent is 35.
What are Exponents and powers?Exponents and powers are ways used to represent very large numbers or very small numbers in a simplified manner.
For example, if we have to show 3 x 3 x 3 x 3 in a simple way, then we can write it as [tex]3^4[/tex], where 4 is the exponent and 3 is the base.
Given:
[tex](x^m)[/tex]³ = [tex](x^{13) ^5[/tex] x [tex](x^{-8}) ^{-5}[/tex]
Now, solving the exponents
[tex](x^m)[/tex]³ = [tex](x^{65})[/tex] x [tex](x^{40}) }[/tex]
Now, using the property
[tex]x^m . x^n = x^{m+n}[/tex]
So, [tex](x^m)[/tex]³ = [tex](x^{65+ 40})[/tex]
[tex](x^{3m})[/tex] = [tex](x^{105})[/tex]
Now, comparing the base
3m = 105
m= 105/3
m= 35
Hence, the value of m is 35.
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If you wanted to be able to represent every hexadecimal value from 016 to ff16, how many bits would you need?.
If we want to be able to represent every hexadecimal value from 016 to ff16, the number of bits we need would be 8 bits.
What is hexadecimal?The term hexadecimal refers to a numbering system in base 16. It can be used to represent large numbers with fewer digits. Most number systems are in decimal or base ten, however, hexadecimal is a type of number system which is in base 16. Hexadecimal has the base ten numbers from 0 to 9 and followed by six alphabetic characters A, B, C, D, E, and F. To represent every hexadecimal value from 016 to ff16, 8 bits will be needed.
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What is the coefficient of y² in the expression 2x²y 10xy² 5y?
So on solving the provided question we cans ay that the coefficient of y² in the expression 2x²y -10xy²+ 5y is 10
What is the coefficient?A coefficient in mathematics is a polynomial, a series, or the multiplicative coefficient of a particular term in an expression. Typically numeric, however any expression is permitted. The term "parameter" can also refer to the coefficients themselves if they are variables. A number times a variable equals a coefficient. Coefficient examples include: The coefficient is 14 in phrase 14c 14c 14c. The coefficient is 1 for word g. multiplies the variable by this amount. example Given that "z" is a variable and that 6z is the definition of the term, the coefficient is 6. One is the coefficient of the square of x.
Here,
the coefficient of y² in the expression 2x²y -10xy²+ 5y is 10
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Manuel ay 25 5/8 ft of fencing i enough for a rectangular flower bed that meaure 9 7/8 ft by 15 3/4 feet i thi correct explain
Manuel was incorrect, because the perimeter of a flower bed is 51 1/4 feet not 25 5/8 feet.
What is the perimeter of a rectangle?
The perimeter of a rectangle is the total distance of its outer boundary. It is twice the sum of its length and width and it is calculated with the help of the formula: Perimeter = 2(length + width).
Given that, Manuel says feet of fencing is enough for a rectangular flower bed that measures feet by feet
Here, perimeter =2(9 7/8 + 15 3/4 ) feet
= 2(79/8 + 63/4)
= 2(79/8 + 126/8)
= 2(205/8)
= 410/8
Manuel was incorrect, because the perimeter of a flower bed is 51 1/4 feet not 25 5/8feet.
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Solve for c.
852 = 12c
Answer:
c=71
Step-by-step explanation:
852=12c
852=12x71
Answer:
[tex] \sf \: c = 71[/tex]
Step-by-step explanation:
Given equation,
→ 852 = 12c
Now the value of c will be,
→ 852 = 12c
→ 12c = 852
→ c = 852 ÷ 12
→ [ c = 71 ]
Hence, the value of c is 71.
What is happening in the graph shown below?
Distance (meters)
09
A
N
0
1
Motion of an Object
2
3 4 5
Time (seconds)
7 8
OA. The object moves away from the origin at a speed of 3 m/s, stands still 6 m away from the origin for 3 seconds, then moves
toward the origin at a speed of 2 m/s.
OB. The object moves toward the origin at a speed of 6 m/s, stands still 6 m away from the origin for 3 seconds, then moves away
from the origin at a speed of 8 m/s.
OC. The object moves toward the origin at a speed of 3 m/s, stands still 6 m away from the origin for 3 seconds, then moves away
from the origin at a speed of 2 m/s.
A statement which correctly describes the graph shown below is: A. The object moves away from the origin at a speed of 3 m/s, stands still 6 m away from the origin for 3 seconds, then moves toward the origin at a speed of 2 m/s.
What is a position vs time graph?In Mathematics, a position vs time graph can be defined as a type of graph that is used to graphically represent the distance traveled by an object from its starting position with respect to the time when it is started moving.
Generally speaking, the position or distance traveled by a physical object in a position vs time graph is always plotted on the y-coordinate while time is always plotted on the x-coordinate (x-axis).
In this scenario, the speed of the object from the origin can be calculated as follows:
Speed = distance/time
Speed = 6/2
Speed = 3 m/s.
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