Which of the following equations demonstrate that the set of polynomials is not closed under the certain operations?
A. Subtraction: (3x4 + x) - (-2x4 + x) = 5x4
B. Multiplication: (x2 - 5x+3)(x - 5) = x3 - 10x2 +28x - 15
C. Division: (x2+x)=(x + 1) =X
D. Division: (x2 - 5x + 3) + (x-5) = x + -3/X-5
Answers
Answer:
D. Division: (x² - 5x + 3) ÷ (x-5) = x + 3/(x - 5)
Step-by-step explanation:
Polynomials are closed under subtraction and multiplication because any subtraction or multiplication of polynomials gives as result another polynomial.
As can be seen in option D, polynomials aren't closed under division because not every division between polynomials gives as result another polynomial.
Related Questions
What value of w makes the equation 145 = w + 27 true?
Answers
Answer:
118
Step-by-step explanation:
In the equation 145 = w + 27, you can solve for w by subtracting 27 from 145. That would give you 118. You can check this is correct by adding 27 to 118. 118 plus 27 = 145.
Answer:
118
Step-by-step explanation:
145 = w + 27
Switch the + sign before the 27 and switch into a minus and move it to the other side.
145-27=w
145-27=118
w=118
If lim f(x) = 5, lim g(x) = 0, and lim h(x) = -2, then find lim g/h (x)? PLSE ANSWER QUICKLY ON A TIMER
Answers
Answer:
c
Step-by-step explanation:
It would be 0/2 so that would be 0
Please Help and Explain this like how do I calculate income tax and capital gain and investments
Answers
Answer: down below...
Step-by-step explanation:
Exercise 1:
Income = $83.465
Tax paid at 5.05% means, whatever your income is, you gotta pay 5.05% of it as a tax.
5.05% = \(\frac{5.05}{100}\)
\(\frac{5.05}{100}*$83.465\)
\(0.0505*$83.465\)
If you do the calculations it should give you a $4,214.9825 tax
"Income tax paid at 9.15%"
\(\frac{9.15}{100}*83.465\)
\(0.0915*83.465\)
The 9.15% tax = $7,637.0475
"Total income tax paid"
This will just be the sum of the two taxes.
$4,214.9825+$7,637.0475 = $11,852.03 (sum of taxes)
Exercise 2:
Purchase price = $347.000
Selling price = $863.000
As you can see, they purchased the property for $347.000 and sold it for $863.000 which made them a lot of money in profit :)
That's what the Difference is.
Difference = $863.000-$347.000
Difference = $516,000
I don't really understand what capital gains are, because I'm 13, but I suppose I gotta calculate 50% of the profit that the banker has made.
\(\frac{50}{100}*$516.000\)
\(\frac{5}{1}*$51.600\)
\(5*$51.600\)
"Capital gains" = $258,000
I don't really know if this is the correct answer for capital gains, but I am pretty sure I did well on the other ones.
Hope I helped you :] !
Veronica takes 1/3 of an hour to write 1/4 of a page of calligraphy.
How long will it take Veronica to write one page of calligraphy?
A. 3/4 hour
B. 1 1/3 hours
C. 1 2/3 hours
D. 3 hours
Answers
Explanation:
If 1/4 of the page takes her 1/3 of an hour (which is about 20 minutes) then you have to multiple 1/3 by 4
1/3 x 4/1
4/3
then you simplify
1 and 1/3
Answer:
Im pretty sure the answer is B because if you count by thirds to finish it would be 4/3 so its B
Step-by-step explanation:
Find the missing number so that the equation has infinitely many solutions. – 5x–19= (Blank)x–19
Answers
Answer:(number)=-5
Step-by-step explanation:
You can use simple logic in order to solve this equation.
An equation that has infinitely many solutions will have the same exact numbers on both sides
Example: 3x = 3x, it has infinite solutions because no matter what number you put, the equation will always be true
The solution for this equation is -5 because when -5x-19=-5x-19, no matter what number you put as a solution, it will be true.
Answer:
Step-by-step explanation:
and 90% of people marry there 7th grade love. since u have read this, u will be told good news 2night. if u don't pass this on nine comments ur worst week starts now this isn't fake. apparently if u copy and paste this on ten comments in the next ten minutes you will have the best day of ur life tomorrow. you will either get kissed or asked out in the next 53 minutes someone will say i love u
Can I get help plzzz
Answers
You have a pizza with diameter 12
2
3 in., and a square box that is 12.65 in. across. Write 12
2
3 as a decimal. Can you fit the pizza inside the box?
What is the decimal expansion for 12
2
3?
A.12.6
B.12.65
C.12.6
D.12.66
pls help me
Answers
Answer:
D is the right choice and no you cannot fit the pizza inside the box.
Step-by-step explanation:
D is the answer because to turn 2/3 into a decimal you would divide 2 by 3 and the answer you would get would be 0.66666666666...You would then add 12 to the answer and get 12.6666... Once you get this answer you would round it to the hundredths to get 12.67 but since that is not an option you could use D, 12.66 inches.
Answer:
I believe the answer is D.
Step-by-step explanation:
If ∠a = 90°, find the measures of ∠b, ∠c and ∠d.
Answers
Answer:
m∠b = 35°
m∠c = 145°
m∠ d = 35°
Step-by-step explanation:
To find m∠b, we use Definition of Supplementary Angles:
180 - (90 + 55) = 35°
To find m∠c, we also use Definition of Supplementary Angles:
180 - 35 = 145°
To find m∠d, we use Vertical Angles Theorem:
m∠b = m∠d = 35°
Answer:
Step-by-step explanation:I don't say u must have to mark my ans as brainliest but if it has really helped u plz don't forget to thank me...
What is the slope of the line that contains the points negative 2, negative seven halves and (4, −4)?
Answers
Answer:
-1/12
Step-by-step explanation:
Formula to find the slope: Y2-Y1 / X2 - X1
Plug in:
(-4 + 7/2) / (4 + 2)
(-8/2 + 7/2) / (4 + 2)
( - 1/2) / (6)
= -1/12
Answer:
-1/12 negative one over 12
A little help here? And can anyone explain this?
Answers
Answer:
D.
Step-by-step explanation:
According to the dot plot,
3 students spend 0.5 minutes brushing their teeth.
2 students spend 1.5 minutes brushing their teeth.
1 student spends 2.5 minutes brushing their teeth.
2 students spend 3.5 minutes brushing their teeth.
1 students spend 4 minutes brushing their teeth.
So, the number set will be: {0.5, 0.5, 0.5, 1.5, 1.5, 2.5, 3.5, 3.5, 4}
Median: The middle number in a set that is ordered from least to greatest.
In this example, the median is 1.5
Mean: The sum of all values divided by the number of values.
In this set there are 9 values so we’ll divide the sum by 9
In this example, the mean would be:
(0.5 + 0.5 + 0.5 + 1.5 + 1.5 + 2.5 + 3.5 + 3.5 + 4) ÷ 9
18 ÷ 9 = 2
If we compare the mean to the median we can see that the mean is greater because 2 > 1.5
Put the number by which one you answer and don't put nothing if you don't know it please
Answers
Answer:
ummmmmmmmm
Step-by-step explanation:
true or false: Two numbers are reciprocals of each other if they have different signs in front.
Answers
Answer:
yes if they are flipped fractions of each other
Step-by-step explanation:
A random sample of 100 customers at a local ice cream shop were asked what their favorite topping was. The following data was collected from the customers.
Topping Sprinkles Nuts Hot Fudge Chocolate Chips
Number of Customers 12 17 44 27
Which of the following graphs correctly displays the data?
Answers
What is the height of the parallelogram?
5 cm
2 cm
4 cm
8 cm
Answers
A set of data points has a line of best fit of y=-0.2x +1.9. What is the residual for the point (5,1)?
Answers
Answer:
0.3
Step-by-step explanation:
Answer:
0.1
Step-by-step explanation:
The measures of the angles of ABC are in the ratio 1:4:5. What are the measures of the angles?
Answers
Answer: The measures of the interior angles of a triangle have sum 180°. Since the measures of the angles are in the ratio 1:4:5, we can call them 1x, 4x, and 5x, for some positive integer, x. The measures of the angles are 18°, 72°, and 90°
Step-by-step explanation:
I tried my best
Answer:
I need a good explanation
The box plots show the weights, in pounds, of the dogs in two different animal shelters.
Weights of Dogs in Shelter A
2 box plots. The number line goes from 6 to 30. For the weights of dogs in shelter A, the whiskers range from 8 to 30, and the box ranges from 17 to 28. A line divides the box at 21. For shelter B, the whiskers range from 10 to 28, and the box ranges from 16 to 20. A line divides the box at 18.
Weights of Dogs in Shelter B
Which describes the spread of the data in the two box plots?
The data in shelter A show more spread than the data in shelter B.
The data in shelter B show more spread than the data in shelter A.
The data in shelter A range from about 17 to 28, while the data in shelter B range from about 16 to 20.
The data in shelter A range from about 21 to 28, while the data in shelter B range from about 18 to 20.
Answers
Answer:
The data in shelter A shows more spread than the data in shelter B
-And-
The data in shelter A range from about 17 to 28, while the data in shelter B range from about 16 to 20
For the range/span you look at where the actual box lies and for the spread use the whisker span.
i need answer quick look at the picture
Answers
Answer: b
Step-by-step explanation: she wanted to
Answer:
B I think Or it might be D
What are the coordinates of the image of ΔABC after a dilation with center (0, 0) and a scale factor of 12
A= ,
B= ,
C= ,
HELPPPPPPP
Answers
Suppose that v = −2 and w = −1.
Which one of the following expressions is positive?
Answers
Answer:
D
Step-by-step explanation:
Only D is positive.
-v -2
----- = ----- = +2
-w -1
Answer:
D -v/-w
Step-by-step explanation:
v = -2 and w = -1
We find on calculator and in workings - / - does = positive
derive and apply a formula for the volume of a right prism
The Truit family rented the cabin shown in the shape of a triangular prism. The cabin is 30 feet deep. What is its volume?
25 ft
and
15 ft
Answers
The formula for the volume of a right prism is given by:
Volume = Base area x Height
In this case, the base of the triangular prism is a triangle, and its area can be calculated using the formula:
Base area = (1/2) x Base x Height
where Base and Height are the dimensions of the triangular base.
So, to find the volume of the cabin, we can use the following steps:
Calculate the area of the triangular base: Base area = (1/2) x Base x Height Base area = (1/2) x 25 ft x 15 ft Base area = 187.5 sq ft
Multiply the area of the base by the height of the prism: Volume = Base area x Height Volume = 187.5 sq ft x 30 ft Volume = 5625 cubic feet
Therefore, the volume of the cabin is 5625 cubic feet.
Match the terms to their definition. 1 . a number that is less than zero positive number 2 . a number belonging to the set made up of the counting numbers: 1, 2, 3, and so on integer 3 . a number that is greater than zero negative number 4 . a number belonging to the set made up of the whole numbers and their opposites opposite numbers 5 . a line that graphically represents all numbers natural number 6 . two numbers that are the same distance from zero on the number line, but in opposite directions number line
Answers
Answer: 1. Negative number
2. Natural number
3. Positive number
4. Integers
5. Number line
6. Opposite numbers
Step-by-step explanation:
1. The first statement says a number that is less than zero, which means any negative number would be less than zero. For example (-1), (-2), etc.
2. The second statement is asking for numbers belonging to the counting set, which means starting from one (1). Natural numbers are numbers that start from 1 and don't include negative numbers or zeros.
3. The third statement says the number that is greater than zero, as negative numbers are smaller than zero and the natural number option has already been chosen above, we will consider positive numbers.
4. Whole numbers consist of both negative and positive integers including zero. Therefore, a set of whole numbers will be written as integers.
5. Number line is a line that represents both negative and positive numbers.
6. Consider an example- (+5) and (-5), both the numbers are the same but with different signs, making them opposite of each other. Therefore, the correct answer would be opposite numbers.
What operation can you use to solve the equation?
A. addition
B. division
C. subtraction
D. multiplication
Answers
Answer:
C
Step-by-step explanation:
24+m=56
You would want to subtract 24 from 56 to get the answer to m
24+m=56
-24 -24
m=32
Step by Step -
24+m=56
-24. -24
m=32
help me please free cookies if you help ✋
Answers
Answer:
answer is 0.19in^3
Step-by-step explanation:
i would like the cookie now...
12y = 3x
1) 3/1
2) 1/4
3) 1/3
Answers
Answer:
the answer is 2: 1/4
Step-by-step explanation:
Which statement is true?
5/8>1\2
5/8=1/2
5/8<1/2
Answers
Answer: 5/8>1/2
Step-by-step explanation:
First you must have a common denominator.
Change 1/2 to 4/8
(1/2 = 4/8)
Second:
5/8 ? 4/8
5/8 is greater than 1/4 (aka 1/2)
so
5/8 > 1/2
Hello! Can you guys help me out with this ?
Answers
Can someone help?- I will mark brainliest !!
Answers
Please help me. Answer the question please.
Answers
Answer: (- 7 )
Step-by-step explanation:
\((\frac{7}{8} )(-16) (-7) (-\frac{1}{14} )\)\((\frac{7}{8} )(-\frac{16}{1}) (-\frac{7}{1} ) (-\frac{1}{14} )\)simplify numerators and denominators.
∴ we get (-7)
Find the expressions that have a quotient of 7 R12. choose all that apply
A. 362÷50
B.408÷60
C.492÷50
D.432÷60
E420÷60
F.502÷70
Answers
Answer:
Try D. I am not exactly sure but let's hope it works.
Step-by-step explanation:
Answer:
Its D.
Step-by-step explanation:
Almost 100% sure