The variance of a WSS random process does not depend on time True False Question 13 The cross-covariance of two uncorrelated random processes is 0 True False
Answers
False. The variance of a Wide-Sense Stationary (WSS) random process does depend on time. Additionally, the cross-covariance of two uncorrelated random processes is generally not zero.
The statement that the variance of a WSS random process does not depend on time is false. In a WSS process, the mean and autocovariance do not depend on time, but the variance can still vary with time. The WSS property implies that the statistical properties of the process, such as the mean and autocovariance function, remain constant over time. However, the variance, which measures the spread or dispersion of the random process, can change with time. Therefore, the variance of a WSS process is not necessarily constant.
Regarding the second statement, the cross-covariance of two uncorrelated random processes is generally not zero. The cross-covariance measures the statistical relationship between two random processes at different time instances. If two processes are uncorrelated, it means that their cross-covariance is zero on average. However, it is possible for the cross-covariance to be non-zero at specific time instances, even though the processes are uncorrelated. This occurs because correlation is a measure of linear dependence, whereas covariance considers any form of dependence. Therefore, it is not generally true that the cross-covariance of two uncorrelated processes is zero.
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Related Questions
CAN SOMEONE HELP PLEASE!
Your friend claims it is possible for a straight angle to consist of three acute angles. Is your friend correct? Explain your reasoning.
Answers
Answer:
My friend is wrong because a straight angle either consists with two right angles or one obtuse angle and one acute angle.
Step-by-step explanation:
Acute angles are angles less than \(90^o\).
Your friend is correct, because all three angles can be acute
A straight line measures 180 degrees.
i.e.
\(\theta = 180\)
Divide by 3
\(\frac{\theta}{3} = \frac{180}{3}\)
\(\frac{\theta}{3} = 60\)
If all three angles on the straight line have a measure of \(60^o\)
Then your friend's claim is correct
Because \(60^o\) is an acute angle
Some other possible scenarios are:
45, 60, 7550,55,75And many moreHence, your friend is correct
See attachment for illustration of one of the possible scenarios
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What is the slope of the line represented by the equation f(x)=3/2x-4 ?
Answers
Answer:
3/2
Step-by-step explanation:
it's the slope because it's before x.
Answer: 3/2 is the answer
MATHEMATICS if the diagonal of a square is 12cm, calculate the area and the perimeter of the square. 72cm
Answers
Answer:
\(diagonal \: of \: square = a \sqrt{2} \\ 12 = a \sqrt{2} \\ \frac{12}{ \sqrt{2} } = a \\ \: a = 6 \sqrt{2} \\ now \: area \: of \: square = {l}^{2} \\ = (6 \sqrt{2) {}^{2} } \\ = 72cm {}^{2} \\ again \: perimeter \: of \: square = 4l \\ = 4 \times (6 \sqrt{2} ) \\ = 33.94cm\)
A spinner is divided into 8 equal sections: What is the theoretical probability of spinning and landing on 2, 7, or 5?
Answers
Answer:
3/8 or
2.67 or
2 67/100
Step-by-step explanation:
2.671×100100=267100
8 divide by 3. Take that and convert to fraction or decimal either or.
Each person in a random sample of 2000 likely voters (as defined by a professional
polling organization) was questioned about his or her political views. Of those
surveyed, 1308 felt that the economy's state was the most urgent national concern.
Reference: Ref 20-1
The standard error SE of p, the estimated proportion viewing the economy's state as
most urgent, is
a) 0. 1.
b) 0. 312.
C) 0. 106.
d) 0. 4926.
Answers
The standard error of the proportion of the population viewing the economy's state as most urgent about their political views is given as follows:
C. 0.0106.
How to obtain the standard error for the proportion?The standard error for the proportion is obtained by the Central Limit Theorem, which states that for a proportion p in a sample of size n, the equation for the standard error is given as follows:
\(s = \sqrt{\frac{p(1 - p)}{n}}\)
The sample size in this problem is given as follows:
n = 2000.
The proportion in the sample is given as follows:
p = 1308/2000 = 0.654.
Hence, applying the equation derived from the Central Limit Theorem, the standard error is given as follows:
\(s = \sqrt{\frac{0.654(0.346)}{2000}}\)
s = 0.0106.
Meaning that option c is correct.
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PLEASE HELP!!!!!!!!!!
I WILL NAME YOU THE BRAINLIEST!
The thing is in the photo.
I do not understand it because it looks like it has "!" Please help
Answers
2.11.2 Project task: the parallax problem
Answers
The parallax problem is a phenomenon that arises when measuring the distance to a celestial object by observing its apparent shift in position relative to background objects due to the motion of the observer.
The parallax effect is based on the principle of triangulation. By observing an object from two different positions, such as opposite sides of Earth's orbit around the Sun, astronomers can measure the change in its apparent position. The greater the shift observed, the closer the object is to Earth.
However, the parallax problem introduces challenges in accurate measurement. Firstly, the shift in position is extremely small, especially for objects that are very far away. The angular shift can be as small as a fraction of an arcsecond, requiring precise instruments and careful measurements.
Secondly, atmospheric conditions, instrumental limitations, and other factors can introduce errors in the measurements. These errors need to be accounted for and minimized to obtain accurate distance calculations.
To overcome these challenges, astronomers employ advanced techniques and technologies. High-precision telescopes, adaptive optics, and sophisticated data analysis methods are used to improve measurement accuracy. Statistical analysis and error propagation techniques help estimate uncertainties associated with parallax measurements.
Despite the difficulties, the parallax method has been instrumental in determining the distances to many stars and has contributed to our understanding of the scale and structure of the universe. It provides a fundamental tool in astronomy and has paved the way for further investigations into the cosmos.
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survey of college students reported that they spend an average of $9.50 a day on dinner with a standard deviation of $3. What is the probability that 100 randomly selected college students will spend less than $10.00 on average for dinner
Answers
The probability that randomly selected 100 college students will spend less than $10.00 on average for dinner will be 0.0475.
We have,
Number of randomly selected college students i.e. n = 100
And,
The average spend of the day on dinner i.e. μ = $9.50,
And,
Standard deviation i.e. σ = $3
Now,
According to the question,
For the probability that of the company's total yearly claim will not exceed $2.42 million,
We have,
\(P(\bar{x} \ < 10)=P(z < \frac{x-\mu}{\frac{\sigma}{\sqrt{n} } })\)
On putting values in the above mentioned equation we get,
\(P(\bar{x} \ < 10)=P(z < \frac{10-9.5}{\frac{3}{\sqrt{100} } } )\)
On solving the above equation we get,
\(P(\bar{x} \ < 10)=P(z < \frac{5}{3} )\)
On solving we get,
\(P(\bar{x} \ < 10)=P(z < 1.67 )\)
And,
Now,
Putting the value of z from z-tables,
we get,
\(P(\bar{x} \ < 10)=1-0.9525\)
on solving,
We get,
\(P(\bar{x} \ < 10)=0.0475\)
So,
This is the probability of 100 randomly selected college students.
Hence we can say that the probability that randomly selected 100 college students will spend less than $10.00 on average for dinner will be 0.0475.
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Tims picture. is 8 feet long. The length of a copy of the picture is 1/2 a foot long. What is the scale factor from the original to the copy?
Answers
Answer: The scale factor is a ratio that compares the dimensions of an object to a copy of that object. To find the scale factor from the original picture to the copy, you can divide the length of the copy by the length of the original.
In this case, the length of the original picture is 8 feet and the length of the copy is 1/2 a foot.
So the scale factor is:
1/2 a foot / 8 feet = 1/16
This means that the copy is 1/16 the size of the original. This means that, for each inch or foot on the original, the same length on the copy is 1/16 of that length.
It's also common to express scale factor as a ratio or a fraction of the original, which in this case is 1/16
It's worth mentioning that you could use this same method to find the scale factor for any other dimension of the picture, such as width, height and so on.
Step-by-step explanation:
It is Friday and you and your friends are going to hit up
the local amusement park. The park costs $30 dollars
to enter and then the tickets for the rides each cost
$3.50. Write an equation when y is total price of
amusement park and x is the number of tickets bought.
Interpret the slope and y-intercept when asked to
explain your answer
Helpp plss
Answers
Answer:
y= 30 + 3.50
Step-by-step explanation:
lol I think you're Giselle for my school but that's what the answer it im pretty sure.
Samantha and Phil share some money in the ratio 3:5.
Phil receives £235.
Calculate how much money was shared.
Please help
Answers
If Phil received £235 in the ratio 3:5, we can use this information to find out how much money was shared in total.
We know that the ratio of Samantha's share to Phil's share is 3:5.
This means that for every 3 parts of the total money that Samantha gets, Phil gets 5 parts.
We can use this information to set up a proportion:
(Samantha's share) / (Phil's share) = (3) / (5)
We know that Phil's share is £235, so we can substitute that into the proportion:
(Samantha's share) / (235) = (3) / (5)
To find the total amount of money shared, we can cross-multiply and divide:
Samantha's share = (3/5) * 235
Samantha's share = 141
To find the total amount of money shared, we can add the amount Samantha received to the amount Phil received:
141 + 235 = £376
Therefore, £376 was shared in total.
Suppose I bought a $564 Teddy Bear with no down payment. The bear seller charges 54% SIMPLE interest and I need to pay the principal plus interest off in 7 years with equal monthly payments. What is the monthly payment amount? Round answer to two places after the decimal point.
Answers
The monthly payment amount for the $564 Teddy Bear with a 54% simple interest rate, to be paid off in 7 years with no down payment, would be $15.92. This amount is calculated based on dividing the total amount (principal + interest) by the number of months in the loan term.
To calculate the total amount to be paid, we first determine the interest accrued over the 7-year period. The simple interest is calculated by multiplying the principal ($564) by the interest rate (54%) and the loan term (7 years), resulting in $2054.64. Adding the principal to the interest, the total amount to be paid is $2618.64.
Next, we divide the total amount by the number of months in the loan term (7 years = 84 months) to find the monthly payment. Dividing $2618.64 by 84 months gives us the monthly payment of $31.15. Rounding this amount to two decimal places, the monthly payment for the Teddy Bear would be $31.15.
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Cindy is 6 years older than half her
mother's age. Cindy's mom is 70 years old.
How old is Cindy?
Answers
Answer:
cindy is 51
Step-by-step explanation:
70 divided by 2 is 45
45+ 6 is 51
O GRAPHING=Finding the next terms of an arithmetic sequence with integersThe first three terms of an arithmetic sequence are as follows.+1, 2, 5Find the next two terms of this sequence.1, 2,5. 0 00 05x
Answers
Explanation
An arithmetic sequence is an ordered set of numbers that have a common difference between each consecutive term,it is give by the expression:
\(a_n=a_1+(n-1)d\)so
Step 1
use the given data to find the arithmetic sequence
so
let
\(\begin{gathered} a_1=-1 \\ a_2=2 \\ a_3=5 \end{gathered}\)so
a) find the common difference
\(\begin{gathered} \text{Difference}_1=a_2-a_1=2-(-1)=2+1=3 \\ \text{Difference}_1=5-2=3 \\ \end{gathered}\)hence the common difference is 3
\(d=\text{ 3}\)now, chec the first term and replace in the formula
\(\begin{gathered} \text{first term}\rightarrow-1 \\ \text{difference}\rightarrow3 \\ \text{replace} \\ a_n=a_1+(n-1) \\ a_n=-1+(n-1)3 \end{gathered}\)Step 2
now, use the expression to find teh netx two terms
a)
\(\begin{gathered} a_n=-1+(n-1)3 \\ \text{for n= 4,replace} \\ a_4=-1+(4-1)3 \\ a_4=-1+(3)3=-1+9=8 \\ a_4=8 \end{gathered}\)b) fifth term
\(\begin{gathered} a_n=-1+(n-1)3 \\ \text{for n= 4,replace} \\ a_5=-1+(5-1)3 \\ a_5=-1+(4)3=-1+12=11 \\ a_5=11 \end{gathered}\)so, the answer is
\(8,11\)I hope this helps you
in an integer overflow attack, an attacker changes the value of a variable to something outside the range that the programmer had intended by using an integer overflow.T/F
Answers
True. An integer overflow attack occurs when an attacker manipulates a variable in a way that causes it to exceed its maximum value or minimum value, leading to unexpected and potentially harmful behavior.
This can happen if a programmer fails to properly check and validate the input values that are being used in their code, allowing an attacker to inject a value that triggers an overflow.
As a result, the variable may be assigned a value that is outside the intended range, leading to unpredictable behavior and potentially causing the program to crash or execute unintended code. It is important for programmers to take steps to prevent integer overflow attacks, such as validating input values and using data types with sufficient capacity to hold the expected range of values.
This occurs when an arithmetic operation results in a value that is too large to be stored in the allocated memory, causing the value to wrap around and become smaller, or even negative. This can lead to unintended consequences in a program's behavior, which an attacker can exploit to gain unauthorized access or cause other security issues.
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Complete the table using the equation y = 8x + 8 ( helppp plsss)
Answers
Answer:
0, 8, 16, 24, 32
Step-by-step explanation:
plug in the values given for x into the 8x+8 equation
Example:
8(-1)+8
8(0)+8
Answer:
(-1, 0), (0, 8), (1, 16), (2, 24), (3, 32)
Step-by-step explanation:
To find answers to problems like these, take the x-value, which in this case is -1, and replace it with the variable,
y = 8*-1 + 8. Then do the rest, y = -8 + 8, y = 0. You already have the x, -1, and now you got y, 0. Then pit in ordered pairs, x first, then y, (-1, 0)
Expand . ( 3x –2 ) 2 please help me with this.
Answers
Answer:
6x-4
Step-by-step explanation:
3x•2= 6x
-2•2=-4
-------------------------------------------------------------------------------------------------------------
Answer: \(\textsf{9x}^2\textsf{ - 12x + 4}\)
-------------------------------------------------------------------------------------------------------------
Given: \(\textsf{(3x - 2)}^2\)
Find: \(\textsf{Simplify the expression}\)
Solution: It looks like 2 is at the end of the parenthesis where the power would be instead of distributing the number. If so the following steps would be followed.
Expand
\(\textsf{(3x - 2)}^2\)\(\textsf{(3x - 2)(3x - 2)}\)\(\textsf{(3x * 3x) + (3x * (-2)) + (3x * (-2)) + (-2 * (-2))}\)Simplify
\(\textsf{9x}^2\textsf{ - 6x - 6x + 4}\)\(\textsf{9x}^2\textsf{ - 12x + 4}\)Therefore, after following the provided information we are able to determine that the expanded form would be 9x^2 - 12x + 4.
Explain the deifferences between properties of equality of equality and properties of inequality when solving the equations and inequality
Answers
Step-by-step explanation:
equality have the same values where as inequality have different values
Answer:
using the properties of equality on any equation will not change the solution set. When multiplying or dividing an any quality by a negative number, you must reverse the inequality symbol or he will not get the correct solution set.
Step-by-step explanation:
pls help identify the scale factor
Answers
Answer:
the scale factor is 3 ......
1. Jason draws a rectangle in the coordinate plane at the right to represent his yard. To get from one corner of his yard to another, Jason travels 4 units down and then 6 units right. Draw arrows on the coordinate plane to show Jason’s path. Write the coordinates for his start and end points.
START:___ END:___
2. Use the coordinate plane in problem 1. What is the perimeter of rectangle YARD?
units
3. Mary models her rectangular room in the coordinate plane at the right. She plans to hang strings of lights on two perpendicular walls. What are the lengths of and ?
units units
4. Use the coordinate plane in problem 3. What is the area of Mary’s room?
square units
5. The coordinate plane at the right models the streets
of a city. The points A(3, 8), B(6, 3), and C(3, 3) are connected to form a park in the shape of a triangle. Connect the points to form the triangle. Which two sides of the park form a right angle?
and
6. Use the coordinate plane in problem 5. Tyler walks along the two sides of the park that form the right angle. How many blocks does he walk in all?
blocks
7. How can you find distances between points in a coordinate plane?
Answers
1. The coordinates are: START: (0,0) END: (6,-4), 2. The perimeter of rectangle YARD is 20 units,3. The lengths of YX and YZ are 4 units and 6 units, respectively, 4. The area of Mary's room is 24 square units,
1-To get from one corner of his yard to another, Jason travels 4 units down and then 6 units right. Starting from the origin, his starting point is (0,0). From there, he moves 4 units down to the point (0,-4), and then 6 units right to reach his endpoint, which is at (6,-4).
2-The rectangle has two sides of length 4 and two sides of length 6. The perimeter is the sum of the lengths of all sides, so it is equal to 2(4) + 2(6) = 8 + 12 = 20 units.
3-The coordinates of points Y, X, and Z are not given, so we cannot calculate the lengths directly. However, we know that the sides of a rectangle are perpendicular, so we can use the Pythagorean theorem to find the lengths. Let Y be the origin (0,0), and let X be the point (0, -4). Then YX has length 4 units. Similarly, let Z be the point (6, 0), so YZ has length 6 units.
4.To find the area of a rectangle, we can multiply the lengths of its sides. From problem 3, we know that the lengths of the sides are 4 and 6 units, so the area is 4 x 6 = 24 square units.
5. The sides AB and AC form a right angle.
To determine which sides of the triangle form a right angle, we need to find the slope of each side. The slope of AB is (3-8)/(6-3) = -5/3, and the slope of AC is (3-3)/(6-3) = 0. Since the product of the slopes of two perpendicular lines is -1, we can see that AB is perpendicular to AC. Therefore, sides AB and AC form a right angle.
6. Tyler walks 9 blocks in all.
To find the distance Tyler walks, we need to calculate the length of sides AB and AC. Using the distance formula, we can find that the length of AB is sqrt[(6-3)² + (3-8)²] =√[(34) units, and the length of AC is 3 units. Therefore, Tyler walks 3 + √[34 units along the two sides that form the right angle. This is approximately 9.4 blocks, so he walks 9 blocks in all.
7. The distance between two points in a coordinate plane can be found using the distance formula:
d = √[(x₂-x₁)² + (y₂-y₁)²]
where (x₁, y₁) and (x₂, y₂) are the coordinates of the two points, and d is the distance between them. The formula is derived from the Pythagorean theorem, which relates the sides of a right triangle.
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Express the radical using the imaginary unit, iii. Express your answer in simplified form. \pm\sqrt{-38}=\pm
Answers
Simplified form of the given radical will be,
⇒ ± √-38 = ± i√38
What is imaginary unit?
The imaginary unit is use to find solutions of many equations that do not have real number solutions.
The radical is given is,
± √-38
Now, Simplify the given radical as,
We can rewrite the radical as;
± √-38 = ± √-1 x √38
= ± i√38
( Since, √-1 = i )
Hence, Simplified form of the given radical will be,
± √-38 = ± i√38
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The length of the base of an isosceles triangle is x. The length of a leg is x. The perimeter of the triangle is. Find x.
Answers
If the perimeter of the isosceles triangle is 12 cm, then the base of the triangle (x), as well as the length of the triangle leg (x) is 4 cm.
An isosceles triangle is a type of triangle in which two sides have the same length. These two equal sides are referred to as the legs of the triangle, while the remaining side is known as the base.
The perimeter of a triangle is the sum of the lengths of all its sides. In this case, since the triangle is isosceles, the base and one leg have the same length (x), and the other leg also has the same length (x). Therefore, the perimeter of the triangle is 2x + x = 3x. Given that the perimeter of the isosceles triangle is 12 cm, then:
3x = 12
x = 12/3
x = 4
So, the base and legs of the isosceles triangle each have a length of 4 cm.
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Your question seems to be missing the value for the perimeter of the triangle, but I suppose the complete question was:
"The length of the base of an isosceles triangle is x. The length of a leg is x. The perimeter of the triangle is 12 cm. Find x."
G(t)=(t+1) 2 −20. 25g What are the zeros of the function?
Answers
The zeros of the function G(t) are given by t = -1 + √(20.25g) and t = -1 - √(20.25g).
What is algebra?
Algebra is a branch of mathematics that deals with mathematical operations and symbols used to represent numbers and quantities in equations and formulas. It involves the study of variables, expressions, equations, and functions.
To find the zeros of the function G(t), we need to find the values of t that make G(t) equal to zero. So, we start by setting G(t) to zero and solving for t:
G(t) = 0
(t+1)2 - 20.25g = 0 [substituting G(t) in place of 0]
(t+1)2 = 20.25g [adding 20.25g to both sides]
t+1 = ±√(20.25g) [taking the square root of both sides]
t = -1 ± √(20.25g) [subtracting 1 from both sides]
So, the zeros of the function G(t) are given by t = -1 + √(20.25g) and t = -1 - √(20.25g).
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which statement about 12 is not true it is a square number or it is the least common multiple of 3 and 4 or it is a factor of 60 or it is an even composite number
Answers
Answer:
it's a square number
Step-by-step explanation:
find a function f whose graph is a parabola with the given vertex and that passes through the given point. vertex (−1, 5); point (−2, −3)
Answers
To find a function that represents a parabola with the given vertex and passing through the given point, we can use the standard form of a quadratic function:
f(x) = a(x - h)^2 + k
where (h, k) represents the vertex of the parabola.
Given the vertex (-1, 5), we have h = -1 and k = 5. Plugging these values into the equation, we have:
f(x) = a(x - (-1))^2 + 5
f(x) = a(x + 1)^2 + 5
Now, we need to find the value of 'a' using the given point (-2, -3).
Plugging the coordinates of the point into the equation, we get:
-3 = a(-2 + 1)^2 + 5
-3 = a(1)^2 + 5
-3 = a + 5
a = -3 - 5
a = -8
Therefore, the function that represents the parabola with the given vertex and passing through the given point is:
f(x) = -8(x + 1)^2 + 5
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Record your answers on the answer sheet provided by your teacher or a sheet of paper.
The posts for Nancy's gazebo form a regular hexagon. What is the measure of the angle formed at each corner of the gazebo?
Answers
In a regular hexagon, all interior angles have the same measure. The measure of the angle formed at each corner of the gazebo is 120 degrees.
To find the measure of the angle formed at each corner of the gazebo, we need to divide the total sum of the interior angles of a hexagon by the number of angles.
The formula to calculate the sum of interior angles in a regular polygon is:
Sum of interior angles = (n - 2) × 180 degrees
Where n represents the number of sides of the polygon.
In this case, since we have a regular hexagon (a polygon with six sides), we substitute n = 6 into the formula:
Sum of interior angles = (6 - 2) × 180 degrees
= 4 × 180 degrees
= 720 degrees
Since all interior angles are congruent in a regular hexagon, we divide the total sum of the angles by the number of angles:
The measure of each angle = Sum of interior angles / Number of angles
= 720 degrees / 6 = 120 degrees
Therefore, the measure of the angle formed at each corner of the gazebo is 120 degrees.
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if you are 6.00 feet (ft) tall, what is your height in centimeters (cm)? a useful conversion factor that bridges the english and metric systems is 1 in
Answers
2.54 centimeters = 1 inch.1 feet = 12 inches then 6*12 =72 inch and hence 72*2.54= 183cm
What is a Metric system?
A metric system may be defined as a type of system that significantly weighs and measures the mass and distance respectively in which the meter is the unit of length and the kilogram is the unit of weight.
A metric system is a standard system of measurement which utilizes the meter, liter, and gram as base units of length for distance, capacity for volume, weight for mass, etc.
According to the question, the height of a student in cm = 175 cm.
Then, from the general conversion rule,
1 meter = 100 cm.
1 cm = 1/100 meter.
175 cm. = 175/100 = 1.75 meters.
Therefore, if a student is 175 cm tall, then according to the metric system the same student is 1.75 m tall.
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The following figure shows the entire
graph of a relationship.
Does the graph represent a function?
Answers
\( {\qquad\qquad\huge\underline{{\sf Answer}}} \)
The given graph doesn't represent a function, as it has two values of y for a single value of x ( that is : for x = 3 it has two solutions, -3 and -6 )
therefore it can't be considered as a function ~
4x+4y=4
3x+4y=10
Solve for elimination
Answers
Answer:
The solution is x=-6 and y=7
Step-by-step explanation:
Given equations are:
\(4x+4y =4\\3x+4y = 10\)
In elimination method, the co-efficient of one of the variables are equated so that one variable can be eliminated by adding or subtracting the equations
In the given system of equations, the co-efficient of y is already same i.e. 4 so we only have to subtract the equations
Subtracting equation 2 from equation 1
\(4x+4y-(3x+4y) = 4-10\\4x+4y-3x-4y = -6\\4x-3x = -6\\x = -6\)
Putting x = -6 in equation 1
\(4(-6)+4y = 4\\-24+4y = 4\\4y = 4+24\\4y = 28\\\frac{4y}{4} = \frac{28}{4}\\y = 7\)
Hence
The solution is x=-6 and y=7
If the two figures are congruent, which statement is true?
A. BCDA ≅ FEHG
B. ABCD ≅ EFGH
C. BADC ≅ EFGH
D. ADCB ≅ HGFE
Answers
Answer:
A
Step-by-step explanation:
the order of letter should resemble the same shape