No, Then the matrix has three columns and the eigenspaces' sum of dimensions is zero. The eigenspace's dimensions and the number of columns must add up to be equal.
A matrix is a rectangular arrangement of a collection of numbers into a fixed number of rows and columns. When the elements are arranged in a matrix horizontally, it forms the rows of a matrix. When the elements are arranged in a matrix vertically, it forms the columns of a matrix.
Define a Matrix:A matrix, also spelled "matrices," is a rectangular table, array, or set of letters, numbers, or phrases that are arranged in rows and columns to represent a mathematical object or a property of such an entity.
There are three eigen-spaces, since A has three eigen values, the dimension of each of the eigen value is at least one as there is at least one non-zero eigen vector in them.
Therefore,
No, Then the matrix has three columns and the eigenspaces' sum of dimensions is zero. The eigenspace's dimensions and the number of columns must add up to be equal.
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which of the following is equivalent to
235,000,000,000?
A2.35 x 10-⁹
B 2.35 x 10-10
C 2.35 x 1011
D 2.35 x 1012
Answer:
C 2.35 x 10¹¹
Step-by-step explanation:
You want the number 235,000,000,000 written in scientific notation.
Place valueThe exponent of 10 when a number is written in scientific notation is the same as the exponent of 10 for the most significant digit when the number is written in expanded form using exponents.
235,000,000,000 = 2×10¹¹ +3×10¹⁰ +5×10⁹ +0×10⁸ +... +0
The place value multiplier for the most-significant digit is 10¹¹, so this is the multiplier when the number is written in scientific notation.
2.35×10¹¹
Find the measure of angle 0.
35°
83°
23°
23
Step-by-step explanation:
The answer is 23 because it is closer to the 0
Answer: the answer is 141
Step-by-step explanation:
bro its not that hard the guy up top is a bum just add all the angles together thats the answer and remember the formula is (n-2)180 for INTERIOR i wrote it in caps cuz some of yall goofy fr
what is the answer? i need it graphed out for me
The graph of the piece-wise function in this problem is given by the image shown at the end of the answer.
What is a piece-wise function?A piece-wise function is a function that has different definitions, based on which interval the input value of the function belongs to.
In this problem, the function has three definitions, given as follows:
Zero -> to the left of -1, with -1 inclusive.y = -x - 1, to the right of -1 and to the left of 2, inclusive at 2.y = -1, to the right of 2.Hence the graph is defined as follows:
Horizontal line at y = 0 to the left of -1, with a closed circle at point (-1,0).Decaying line between points (-1,0) and (2,-3), with a closed circle at (2,3).Constant line at y = -2 from x = 2 and until infinity.More can be learned about piece-wise functions at https//brainly.com/question/19358926
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Which of the following could represent the cost of 7 t-shirts and a $6 tax?A 7n + 6
B 7n − 6
C n + 6(7)
D 7(6) + n
The expression that could represent the cost of 7 t-shirts and a $6 tax is (a) 7n + 6
How to determine the expression?From the question, we have the following parameters that can be used in our computation:
Number of shirts = 7
Tax = $6
Represent the cost of each shirt with n
So, we have the following equation
Total cost = Number of shirts * Cost of each shirt + Tax
Substitute the known values in the above equation, so, we have the following representation
Total cost = 7 * n + 6
Evaluate
Total cost = 7n + 6
Hence, the expression is (a) 7n + 6
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Lucy and Zaki each throw a ball at a target. an image What is the probability that both Lucy and Zaki miss the target?
The Probability of both Zack and Lucy missing the target will be 0.48
Let the probability of Lucy and Zack missing the target be = P(L) and P(Z), respectively. So, If the probabilities of Zack and Lucy missing the target are as follows-
P(L) = 0.6 and
P(Z) = 0.8
then, the probability of both Lucy and Zack missing the target will be,
P(L) × P(Z) i.e.
0.6×0.8 = 0.48
Probability is basically a method to find out the possibility of likelihood of a certain outcome. In mathematics, it was introduced by Pierre and Cardano in the seventeenth century.
The complete question is-
The probabilities of Lucy and Zack hitting or missing the target are given in the following image. As per that, what will be the probability of both Lucy and Zack missing the target?
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Billy-Joe and Bob purchased a pool with a capacity of 60 gallons for his farm. One day, at 1 p.m., Billy-Joe placed a hose into the pool, filling it with water at a rate of 3 gal per hour. After 10 hours, horses and cows started drinking the water at a combined rate of 1 gal/hr. Five hours later, Bob noticed the animals drinking and placed a second hose in the pool which filled it at a rate of 2 gal/hr. At what time could Bob declare the pool was full of water?
At 9 AM Bob could declare the pool was full of water, using given information about fill rate, discharge rate and time.
What is fill rate and discharge rate ?
The definition of fill rate is the percentage of customers orders you are able to meet without running out of stock at any given time.
The discharge rate is the amount of fluid that is passing through a given cross sectional area per unit time.
We need to divide it in 3 parts:
Part 1: When only 1 hose is filling the pool at 3 gal per hr.
Part 2 : When after 10 hours animals started drinking water .
Part 3: When 2nd hose also started at the rate 2 gal per hr.
Part 1:
For 10 hours it get started . So, pool get filled is 30gal.
Part 2:
After 10 hours, rate decreased by animals at 1 gal/hour.
So, rate = 3-1 = 2 gal/hour.
So, water filled for 5 hour = 10 gal.
So, total pool is filled = 10 + 30 = 40 gal.
Remaining = 60 - 40 = 20 gal.
Part 3:
2nd hose is added at the rate 2gal/hour.
Now, rate = 2+2 = 4 gal/hour.
Time taken for 20 gal = 5 hours.
So, total time taken = 10 + 5 +5
= 20 hours.
We need to find the time ,
Time at which water is started = 1pm
1PM + 11hours = 12AM
For remaining , 9 hours
12AM + 9hours = 9AM.
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Find the measures of HAB and CAB
Answer:
AngleCAB = 44°
AngleHAB = 66°
Step-by-step explanation:
AngleEAF is a right angle, equal to 90°.
EH and DC are just two intersecting lines. They form a couple of pairs of vertical angles. Vertical angles are equal to each other. We'll use the vertical angles, AngleEAD and CAH.
Angle EAD and CAH are equal to each other.
EAD = CAH
90°+20° = 2x + 3x
Combine like terms.
110° = 5x
Divide by 5
110/5 = x
22 = x
Angle CAB
= 2x
= 2(22)
= 44
AngleCAB = 44°
AngleHAB
= 3x
= 3(22)
= 66
AngleHAB = 66°
1. Suppose that there are 5 children in a gymnastics class. One day, they count the number of steps each person takes while walking on their hands until they lose balance and come down. The results are: Ashley (20), Brittany (8), Carol (22), Darla (26), and Erica (24). The mean number of steps these children took while walking on their hands is 20 steps. (a) Identify the population and the parameter. ate the mean number of steps taken while walking on their
(b) List all 10 poss SRSs of size n-2. Ca hands for each sample. (c) Display the sampling distribution of the sample mean on a dotplot.
Based on the probability concept, the population is number of children in gymnastic class is 5 and the parameter is mean number of steps taken by the 5 children.
Probability:
In math probability deals with the occurrence of a random event and the value is expressed from zero to one.
Given,
Suppose that there are 5 children in a gymnastics class.
One day, they count the number of steps each person takes while walking on their hands until they lose balance and come down.
The mean number of steps these children took while walking on their hands is 20 steps.
Here we need to find the the population and parameter.
Based on the given question,
We know that the parameters are descriptive measures of an entire population and their values are usually unknown because it is infeasible to measure an entire population.
Therefore, you can take a random sample from the population to obtain parameter estimates.
Similarly, for the population could simply be referred to as the total number or set of similar objects or subjects related to a certain study or research.
Here the given scenario described above, the area of interest is a particular gymnastic class, therefore all individuals or children belonging to this particular gymnastic class makes up the population.
And then the parameter on the other hand are statistical metrics, values or calculations derived from the population figure or information.
So, the mean value of steps obtained from the step counts of the population data is called the parameter.
And the parameter is a value that describes a characteristic of an entire population, such as the population mean.
Therefore, the population mean and standard deviation are two common parameters.
=> Population = number of children in gymnastic class = 5.
=> Parameter = mean number of steps taken by the 5 children.
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Math question need asap
The commission rate is 20% and the base pay is $41,000.
What is the base pay and the commission rate?The total pay is the sum of the base pay and the total commission earned.
Total pay = base pay + commission
Total pay = base pay + (percentage commission x sales)
The equations that represents the information in the question are:
a + 50,000b = 51,000 equation 1
a + 100,000b = 61,000 equation 2
The elimination method would be used to determine the required values:
Subtract equation 1 from equation 2:
50,000b = 10,000
b = 10,000 / 50,000
b = 0.2 = 20%
Substitute for b in equation 1:
a + (50,000 x 0.2) = 51,000
a + 10,000 = 51,000
a = 51,000 - 10,000
a = 41,000
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It takes an older computer twice as long to send out a company's email as it does a newer computer. Working together, it takes the two computers 12 minutes to send out the email. How long will it take the older computer to send out the email on its own? Do not do any rounding.
The older computer takes 8 minutes to send out the email on its own.
What is addition?Combining objects and counting them as one big group is done through addition. In arithmetic, addition is the process of adding two or more integers together. Addends are the numbers that are added, and the sum refers to the outcome of the operation.
Let , the older computer works at the rate of x.
According to the condition,
then the rate of work of newer computer is x/2.
And the combined work of both the computer = x/2 + x = 3x/2
It means that 3x = 12
then x = 4
Hence, x =8of the job per minute.
It means the older computer will make the entire job in 84 minutes.
Therefore, the older computer takes 8 minutes to send out the email on its own.
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207* 36= ?
4th grade question.
multiplying 3 digit by 2 digit numbers
Three long wires (wire 1 wire 2 and wire 3 ) hang vertically. The distance between wire 1 and wire 2 is 23.0 cm On the left, wire 1 carries an upward current of 1.50 A. To the right, wire 2 carries a downward current of 3.60 A. Wire 3 is to be located such that when it carries a certain current, each wire experiences no net force. (a) Is this situation possible? Is it possible in more than one way? Describe (b) the position of wire 3 and the magnitude and direction of the current in wire 3.
Based on the combination technique,
1. The position of wire 3
2. The magnitude and direction of current in wire 3
Combination method:
In statistics, the mathematical technique that determines the number of possible arrangements in a collection of items where the order of the selection does not matter is know a combination method.
Given,
Here we have the three long wires hang vertically. The distance between wire 1 and wire 2 is 23.0 cm On the left, wire 1 carries an upward current of 1.50 A. To the right, wire 2 carries a downward current of 3.60 A. Wire 3 is to be located such that when it carries a certain current, each wire experiences no net force.
And now we need to find the position of wire 3 and the magnitude and direction of the current in wire 3.
As per the given question, we know that the
=> Current in wire 1, i1 =1.2A upward
=> Current in wire 2, i2=5A downward
And the distance between wire 1 and 2 is calculated is
=> 20cm = 0.2m
Here the current is calculated as
=> F/l = μo•i1•i3/2πx
So,
=> F/l=6×10⁻⁶N/m
=> 6×10⁻⁶ = μo•i1•i3/2πx
=> 6×10⁻⁶ =4π×10⁻⁷×1.2×i3/(2π×0.0632)
When we do Cross multiply,
=> 6×10⁻⁶×2π0.0632=4π×10⁻⁷×1.2×i3
=> 2.383×10⁻⁶=4π×10⁻⁷×1.2×i3
=> i3= (2.383×10⁻⁶)/(4π×10⁻⁷×1.2)
Therefore, i3= 1.58A and it's direction is downward.
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let $abc$ be an acute triangle satisfying the conditions $ab > bc$ and $ac > bc$. denote by $o$ and $h$ the circumcenter and orthocenter, respectively, of the triangle $abc$. suppose that the circumcircle of the triangle $ahc$ intersects the line $ab$ at $m$ different from $a$, and the circumcircle of the triangle $ahb$ intersects the line $ac$ at $n$ different from $a$. prove that the circumcenter of the triangle $mnh$ lies on the line $oh$.
In an acute triangle, the circumcenter of the triangle lies on the line O.
Acute triangle.
In geomentry, acute triangle is the type of triangle in which all the three internal angles of the triangle are acute
Given,
Here we need to prove that in the acute triangle ABC, the circumcenter of the triangle MNH lies on the line OH.
Let us consider T be the intersection of σ1 and σ1 other than W.
Now, the Lemma 1: T is on XY.
Now, the Proof is written as We have ∠XTW} = ∠YTW = 90 degres because they intercept semicircles.
Therefore, ∠XTY = ∠XTW + ∠YTW = 180 degrees,
Then XTY is a straight line.
Here we know that NHLB is cyclic because ∠BNH and ∠BLH, opposite and right angles, sum to 180 degree. Furthermore, we are given that NTWB is cyclic.
Therefore, the triangle MNH lies on the line OH.
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If RV = 54, find XV.
Step-by-step explanation:
this is a structure of medians in the main triangle.
the center point X divides each median into parts in the ratio 2:1, with X being twice as far from the originating vertex than from the midpoint of the connected side.
so, RX is twice as long as XV.
RV = 54.
RX : XV = 2:1
that means RV consists of 2+1 = 3 equal parts. 2 of these parts are RX, and one part is XV.
how long is one part ?
54/3 = 18.
RX = 2×18, and XV = 1×18
XV = 18
The required measure of the XV in the triangle is 18.
What is the median?The Median is defined as the line joining the vertex of a triangle to the midpoint of the facing side of the triangle.
Triangle RST is given, which consists of median RV, TU, and SW. All the median of the triangle intersects at X.
Now, the property triangle states that the point of intersection of the median(i.e centroid) X divides the median in the ratio of 2:1,
So,XV = 1 / 3 of RV and RX = 2/3 of RV,
Now,
XV = RV/3
XV = 54 / 3
XV = 18
Thus, XV = 18.
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Kendra earns $11.60 per hour working at the movie theater. Each week, she donates
1
10
of her earnings to Best Friends Animal Society, her favorite charity. If Kendra worked 8
1
2
hours last week, how much money did she donate to the charity?
$9.86 , Kendra donates to the charity.
Kendra worked 8 hours and 30 minutes last week
She earns $ 11.60 per hour
She will earn money if she works for 30 minutes = $(11.60÷2)
Therefore,
Total amount of money she earns last week = $((11.60×8) + (11.60÷2))
= $(92.8+5.80))
= $98.6
Kendra donates 1/10th of the total money she earns in a week
Therefore,
Amount she donate last week = total amount she earns last week * 1/10
= $(98.6*1/10)
= $9.86
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Gregory gave a glass of water to each person at dinner. He puts more than 2 ice cubes in each glass . Each glass has the same number of ice cubes. How many ice cubes could Gregory use all.
The number of ice cubes that Gregory could use in all is; 15
How to solve Algebraic word problems?Algebraic word problems are defined as the questions that require translation of sentences into equations, and thereafter solving those equations. The variable in these usually represents an unknown quantity in a real-life scenario.
We are told that Greg gave a glass of water to each person at dinner. He put more than 2 ice cubes in each glass. Each glass had the same number of ice cubes.
More than 2 ice cubes tells us that there would be 3 cubes or 5 cubes especially when we consider the size of an ice cube.
Now from the given options, we see that only 15 is the number divided equally by 3 and 5.
Therefore, the total number of ice cubes will be 15.
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The missing options are;
A. 13
B. 15
C. 17
D. 19
In the figure below, N is between M and O, and O is between N and P . If MP=16, NP=13 , and MO=9 , find NO.
NO= ?
MP = 16 ,, where NP = 13
therefore : MP - NP = MN <=> MN = 16 - 13 <=> MN = 3
MP = 16 ,, where MO = 9
therefore : MP - MO = OP <=> 16 - 9 = MO <=> MO = 7
MO = 7 & MN = 3
therefore : MO - MN = NO <=> NO = 7 - 3 <=> NO = 4
pls help me quick!!!
Using the fact that the two triangles are similar, we will see that the unknown side measures 50/3 units.
How to find the length of the unknown side?We know that the two triangles are similar, so if we take any two correspondent sides on the triangles and take the quotient, that will give a constant value. The base on the smaller triangle is 3, and the base in the larger one is 10, then the quotient gives:
Q = 10/3
If we make the quotient with the unknown we will get:Q = ?/5
The quotient is a constant, then these two quotients are equal:
10/3 = ?/5(10/3)*5 = ?50/3 = ?
In conclusion, the measure of the missing side is 50/3 units.
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You deposit $5000 in an account earning 3% interest compounded continuously. How much will you have in the account in 5 years?
Answer:
$5809.17
Step-by-step explanation:
Using the formula for continuous compound interest [tex]P(t)=Pe^{rt}[/tex] We can plug in our values [tex]P(t)=5000e^{0.03*5}[/tex] and solve.
A bug starts at a vertex of an equilateral triangle. On each move, it randomly selects one of the two vertices where it is not currently located, and crawls along a side of the triangle to that vertex. Given that the probability that the bug moves to its starting vertex on its tenth move is m/n, where m and n are relatively prime positive integers, find m + n.
If the probability that the bug moves to its starting vertex on its tenth move is m/n , then the value of m+n is 683 .
In the question ,
it is given that ,
the bug starts from a vertex of an equilateral triangle , and
in each move , it randomly selects one of two vertices where it is not currently located .
Let the probability that the bug is at its starting vertex after n moves is Pₙ .
If the bug is on its starting vertex after n moves, then it must be not on its starting vertex after n-1 moves .
At this point it will has (1/2) chance of reaching starting vertex in the next move.
Thus Pₙ = (1/2)(1 - Pₙ₋₁) . P₀ =1 ,
So , the probabilities in each move can be written as
P₁ = 0 , P₂ = 1/2, P₃ = 1/4 , P₄ = 3/8 , P₅ = 5/16, P₆ = 11/32 , P₇ = 21/64 , P₈ = 43/128, P₉ = 85/256, P₁₀ = 171/512 ,
So , the tenth move P₁₀ is given as 171/512 , which is m/n .
So, m + n is = 171 + 512 = 683 .
Therefore , the value of m+n is = 683 .
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The production costs, P , for a band to have a concert can be modeled by the equation P=850+5x , where x is the number of concert tickets sold. The band earns $50 for each ticket sold. The band’s goal is for the amount earned on ticket sales minus production costs to equal $5,000 per concert. How many tickets does the band have to sell for each concert to meet the goal?
The number of tickets that the band have to sell for each concert to meet the goal is 76 tickets
How many tickets does the band have to sell for each concert to meet the goal?Based on the information given, the production costs, P , for a band to have a concert can be modeled by the equation P=850 + 5x.
x = the number of concert tickets sold.
Since the band earns $50 for each ticket sold. The band’s goal is for the amount earned on ticket sales minus production costs to equal $5,000 per concert.
This will be illustrated thus:
Revenue - Cost = Profit
50x - 850 + 5x = 5000
Collect like terms
55x = 5000 - 850
55x = 4150
Divide
x = 4150 / 55
x = 76
The tickets will be 76.
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write an equation in slope-intercept form that would have infinitely many solutions in a system of equations with 5x-2y=8
Answer:
y = 2.5x - 4--------------------------
The linear functions will have same or equivalent equations in order to have infinitely many solutions.
Convert the given to slope-intercept form, y = mx + b, to make it equivalent:
5x - 2y = 82y = 5x - 8y = 2.5x - 4The half-life of Xe-133 is 5.25 days. How much will be left of 25g of the xenon after 11 days?
5.8525 grams out of 25 grams of xenon will be left after 11 days.
What is half-life?The amount of time needed for an isotope's radioactivity to decrease to 50% of its initial value.
The given data is
T1/2=5.25 days.
No=25g
T=11 days
We'll have to find the disintegration constant first.
The formula for finding it is
T½ = In2 / λ
T½ = half-life
λ = disintegration constant
λ = In2 / T½
λ = 0.693 / 5.25
λ = 0.132
In(N / No) = -λt
where,
N = final mass of the radioactive sample
No = initial mass of the sample
λ = disintegration constant
t = time for the radioactive decay
In(N/No) = -λt
N / No = e^-λt
N = No(e^-λt)
N = 25 × e^-(0.132 × 11)
N=5.8525 g.
Therefore 5.8525 grams of Xe-133 will be left after 11 days.
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Most of the cars the Green Pine Auto Dealership sells are minivans and sedans. In January, they sold 10 minivans and 20 sedans. In February, the dealership ran some promotions, and they sold 15 minivans and 25 sedans. During which month did the dealership sell a greater ratio of minivans to sedans?
Using the concept of ratio, the month of February had a better ratio in sales compared to January
What is RatioThe ratio is defined as the comparison of two quantities of the same units that indicates how much of one quantity is present in the other quantity.
This is the process of comparing two quantities against one another to determine their ratio against each other.
In the question given;
January = 10 minivans, 20 sedans
The ratio of minivans to sedan = 10 / 20 = 1/2
The ratio of minivans to sedan in January = 1/2
February = 15 minivans, 25 sedans
The ratio of minivans to sedans = 15/25 = 3/5
The month of February has the highest ratio
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AXYZ has coordinates X (-2, y), Y (2, 3), and Z (3, -1). What is the missing
coordinate that makes AXYZ with base XZ isosceles?
y =
Answer:
Step-by-step explanation:
if a vehicle is going 72mph, how many feet does the vehicle travel in one second?
72 mph = 105.6 ft/second
In order to convert any value from mph the following formula can be referred to:
speed in miles per hour x 5,280 = speed in foot per second
Therefore when 72 miles per hour is converted to foot per second would equal to the following value:
105.6 feet per second
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I’m confused on this question
Answer:
C'(9,5)
Step-by-step explanation:
Left/Right = x-coordinateUp/Down = y-coordinateC(5,6)
Add or subtract how much you translate (move) left/right to the x-coordinate
Add or subtract how much you translate (move) up/down to the y-coordinate
C(5+x, 6+y) = C'
C(5+4, 6-1) = C'
C'(9,5)
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Match the phrase with the solution it would give.
Two parallel lines are graphed.
Two perpendicular lines are graphed.
Two lines that are the same line are graphed.
A wall is supported by a brace 10 feet long, as shown in the diagram. If one end of the brace is placed 6 feet from the base of the wall, how many feet up the wall does the brace reach?
The height of the wall the brace reached is 8 feet.
What is the Pythagorean theorem?Pythagorean theorem states that in a right triangle, the square of the hypotenuse is equal to the sum of the squares of the other two sides.
We have,
Height of the wall the brace reached = x
Now,
10² = 6² + x²
100 = 36 + x²
x² = 100 - 36
x² = 64
x = 8
Thus,
The brace reached 8 feet of the wall.
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Which of the following is not a polynomial a 3x 5 B 3y³ 4y² 2y?
Of the following, the option which is not a polynomial is 1/x+2. (Option D)
In mathematics, a polynomial refers to an expression consisting of indeterminates and coefficients, that only includes basic arithmetic operations of addition, subtraction, multiplication, and positive-integer powers of variables. In other words, it is a mathematical expression of one or more algebraic terms each of which consists of a constant multiplied by one or more variables raised to a nonnegative integral power. The general form of a polynomial is a + bx + cx^2. Hence, it is identified by noting which expressions contain only the operations of addition, subtraction, multiplication, and non-negative integer exponents. The non-polynomial expressions will be the expressions which contain other operations such as 1/x+2.
Note: The question is incomplete. The complete question probably is: Which of the following is not a polynomial (a) 3x+5 (b) 3y³-4y² +2y (c)x³-3 d) 1/x+2
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