Mathematics High School

(x-y) (x²-2xy + y²)​

Answers

Answer 1

Answer:

x³ - 2x²y + 3xy² - y³

Step-by-step explanation:

When multiplying with two brackets, you need to multiply the two terms, (x) and (-y) from the first bracket to all the terms in the second brackets, (x²), (-2xy) and (y²) individually. I have put each multiplied term in a bracket so it is easier.

(x-y)(x²-2xy+y²) =

(x × x²) + {x × (-2xy)} + (x × y²) + {(-y) × x²) + {(-y) × (-2xy)} + {(-y) × y²)

Now we can evaluate the terms in the brackets.

(x × x²) + {x × (-2xy)} + (x × y²) + {(-y) × x²) + {(-y) × (-2xy)} + {(-y) × y²) =

(x³) + (-2x²y) + (xy²) + (2xy²) + (-y³)

We can open the brackets now. One plus and one minus makes a minus.

(x³) + (-2x²y) + (xy²) + (2xy²) + (-y³) = x³ - 2x²y + xy² + 2xy² - y³

Evaluate like terms.

x³ - 2x²y + xy² + 2xy² - y³ = x³ - 2x²y + 3xy² - y³

Related Questions

please help, i’ll give brainliest!

Answers

Answer: There is no correlation.

Step-by-step explanation:

Answer:

NO CORRELATTION

Step-by-step explanation:

At a book store there are 25 books on the clearance section. 20 of the books are young adult novels and the rest of the books are picture books. Which statement is not true?

For every 4 young adult novels, there is 1 picture book
For every 5 books, 4 are young adult novels
The ratio of picture books to young adult novels is 1:4
There is 1 picture book for every 5 books
All statements are true

Answers

Answer:

all answers are true I think

The total cost in dollars to buy uniforms for the Ping-Pong team can be found using the function c=22.50+5 where u is the number of uniforms bought.if there are at least 7 players but not more than 10 players on the Ping-Pong team, what is a reasonable range for the situation? A.{7,8,9,10} B.{162.50 , 185, 207.50, 230} C. 7≤ x ≤ 10 D. 162.50 ≤ y ≤ 230

Answers

answer: b

explanation:

it’s asking for the range so it can’t be c or d because those are used in continuous data only so it’s between a and b but it can’t be a as a is the range of players but b is the range of the cost so the answer would then be b

Which equation is equivalent to the equation 6x + 9=12

Answers

Answer:

the answer is 1/2

Step-by-step explanation:

i solved it

The hypotenuse of a right triangle is 26 millimeters. One leg of the right triangle is 10 millimeters. What is the length of the other leg? (4 points)
Question 3 options:

1)

18 millimeters

2)

20 millimeters

3)

24 millimeters

4)

28 millimeters

Answers

Answer: 24 millimeters

the length of the other leg is x (x > 0)(millimeters)

using Pythagoras theorem with the right triangle, we have:

x² + 10² = 26²

⇔ x² = 26² - 10² = 576

=> x = 24 (mm)

Step-by-step explanation:

Step-by-step explanation:

(26)^2 = (10)^2 + BC^2

676 = 100 + BC^2

576 =BC^2

BC = 24 mm

Evaluate 9/m + 4 when m= 3

Answers

Answer:

7

Step-by-step explanation:

Answer:

7

Step-by-step explanation:

9/3 + 4

3 + 4 =

7

Ms. Sanchez bought 3 pounds of turkey to make sandwiches for her family. She uses 1/3 of a pound for each sandwich. How many sandwiches can she make?

Answers

Answer:

the  total number of sandwich required is 9

Step-by-step explanation:

The computation of the number of sandwiches made is as follows:

She bought 3 pounds

And one third of pound she required for each sandwhich

So, the total number of sandwich required is

= 3 ÷ 1 ÷ 3

= 3 × 3

= 9

Hence, the  total number of sandwich required is 9

The same is to be considered

please answer!
The equation d = 30 − 60h gives the distance d in miles that a bus is from the station h hours after leaving an arena. How far is the station from the arena?

A. 0.5 miles

B. 120 miles

C. 30 miles

D. 60 miles

Answers

Amswer

it is b Step-by-step explanation:

Demons answer this for me.

Answers

Answer:

Step-by-step explanation:

if you have negative numbers of x (this means negative meters) then the equation transform them into negative yards.

then replace y by 40yd in the equation like

40 = 1.09x

x = 40/1.09 = 36.7 meters

so in a 40yd race, there are 36.7 meters.

[tex]\\ jn j j j[/tex]

Answers

Answer:

glhIblzikdjbgjdzgbobrgbzoerbgoernbs

Step-by-step explanation:

ur welcome ;)

Answer:

njjjj

Step-by-step explanation:

Friendship’s soccer team purchased uniforms and equipment for a total of $912. The equipment cost $612 and the uniforms cost $25 each. How many uniforms did the school purchase?

Answers

Answer:

12

Step-by-step explanation:

912 - 612 = 300

300 ÷ 25 = 12

The number of uniforms the school purchased based on the given data and equation formation will be $12.

How to form an equation?

Determine the known quantities and designate the unknown quantity as a variable while trying to set up or construct a linear equation to fit a real-world application.

In other words, an equation is a set of variables that are constrained through a situation or case.

Let's suppose the school purchase x number of uniforms.

Total cost = equipment cost + x uniforms cost

912 = 612 + 25x

912 - 612 = 25x

25x = 300

x = 12

Hence "The number of uniforms the school purchased based on the given data and equation formation will be $12".

For more about the equation,

https://brainly.com/question/10413253

#SPJ2

ben orders a case of his favorite macaroni and cheese. The case contains 18 same size boxes that weigh a total of 7.2 pounds .

Answers

Answer:

129.6

Step-by-step explanation:

that the answer I got so yea

Answer:

The answer is 18x = 7.2 x = 2.5.

Step-by-step explanation:

If your asking this question from iready then the answer is 18x = 7.2 x = 2.5

Crystal's gym membership costs $48 a month. Which table shows the sum of the
amounts that Crystal will pay for her gym membership over the next 4 months?

Answers

Answer:

it will cost 240$ dollars to pay for 5 month

Step-by-step explanation:

PLZ GIVE ME BRAINLEST


A miniature portrait of Frosty the Snowman is square and has an area of 100 square
centimeters. How long is each side of the portrait?

Answers

Answer:

25 centimeters

Step-by-step explanation:

Well a square has 4 sides, and 100 divided by 4 is 25.

The Schwartz family spent a total of $111.75 for Internet service for 3 months. Each month they received $5.50 as a credit on the bill. Which equation and solution shows the cost of their monthly Internet service before the credit? 3 (x + 5.50) = 111.75; the monthly Internet service is $31.75 3 (x minus 5.50) = 111.75; the monthly Internet service is $42.75 One-third (x minus 5.50) = 111.75; the monthly Internet service is $42.75 One-third (x + 5.50) = 111.75; the monthly Internet service is $31.75

Answers

Answer:

3 (x + 5.50) = 111.75; the monthly Internet service is $31.75

Step-by-step explanation:

Let

x = monthly cost of internet service

Each month they received $5.50 as a credit on the bill.

The Schwartz family spent a total of $111.75 for Internet service for 3 months.

Total cost of internet service for three months = 3(x + 5.550)

111.75 = 3(x + 5.50)

111.75 = 3x + 16.50

111.75 - 16.50 = 3x

95.25 = 3x

x = 95.25 / 3

= 31.75

x = $31.75

Answer:

B

Step-by-step explanation:

i did it on edge2020:)

I need help with number 21 please help!!!

Answers

Answer:

This is not a direct variation.

Step-by-step explanation:

Direct variation:

mathematical relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other.

(y varies directly with x with a constant variation of k)

[tex]y=kx;\ k\neq0[/tex]

[tex]y=kx\qquad|\text{divide both sides by}\ x\\\\\dfrac{y}{x}=k\Rightarrow \dfrac{y}{x}=constant[/tex]

[tex]21.\\\\x=y+2\qquad|\text{subtract 2 from both sides}\\\\x-2=y\qquad|\text{divide both sides by}\ x\\\\1-\dfrac{2}{x}=\dfrac{y}{x}\ro\dfrac{y}{x}=1-\dfrac{2}{x}\neq constant[/tex]

Please help; stuck on this one...

Answers

Answer:

y = -3x + 4

Step-by-step explanation:

Cindy used 6feet of ribbon to wrap 10 gifts . How much ribbon will she use to wrap 25/gifts ? ( all the gifts are the same size)
​

Answers

Answer:

15ft

Step-by-step explanation:

if she used 6ft for 10 gifts, you would multiply 6 by 2 equalling 12.

then multiply 6 by .5, 3. add 3 and 12

the answers 15 sorry i couldnt explain better but ya

pleaSe mark brainliest

ABCD is a parallelogram. If m

Answers

mario in mario 64 go: yayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayayawhat am i

Pls help me ASAP I have other homework to do and I don’t have time for this. It also detects if it’s right or wrong:(

Answers

Answer:

C

Step-by-step explanation:

trust me on this one

What is the equation of the line that passes through the point (-4,-6)(−4,−6) and has an undefined slope?

Answers

Answer:

x = -4

Step-by-step explanation:

there is no y-intercept when slope is undefined

Undefined slope indicates a vertical line passing through the x-axis at the x-coordinate of any known point

At the grocery store ,8 oranges cost $4 what is the cost for 9 oranges ?

Answers

I think it would cost 4.50

Answer:

$4.50

Step-by-step explanation:

First step is to find the price per orange. You can do this by dividing total cost by oranges bought. See below.

[tex]4 \div 8 \\ = .50[/tex]

Now to find the amount of 9 oranges, you'd multiply price per orange by the specified amount needed (so 9)

[tex]9 \times .50 \\ = 4.50[/tex]

The LSN basketball team had 292 fans at a game. Adults paid $3.00 to get in and students paid $2.00. A total of $756.00 was collected. Write and solve a system of equations to determine the number of each type of ticket sold, use x to represent Adult tickets and y to represent Student tickets.

write an equation-
adult tickets sold-
child tickets sold-​

Answers

Answer:

x (378) + y (378) =

Step-by-step explanation:

First i split 756.00 in half so basically what ever is multiplied by two to get 756 and i got 378. So since x = 3.00 and y = 2.00, it would come out to this:

3.00 x 378 = x (378) =

2.00 x 378 = y (378) =

So:

x (378) + y (378) =

im sorry if i got it wrong-

2 x (3^3-5+8) pemdas

Answers

Answer:

60

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right

Step-by-step explanation:

Step 1: Define Expression

2 × (3³ - 5 + 8)

Step 2: Evaluate

[Parenthesis] Exponents:                    2 × (27 - 5 + 8)[Parenthesis] Subtract:                        2 × (22 + 8)[Parenthesis] Add:                               2 × 30Multiplication:                                      60

plzzzzzzzzzzzzzzzzzzzzzzzzzzz

Answers

Answer:

2x & 3x

Step-by-step explanation:

sum: 2x + 3x = 5x

product: 2x * 3x = 6[tex]x^{2}[/tex]

Match the sequence (term) with the correct type of sequence (definition). (4 points)

1. 15, 20, 25, 30, ...
2. 30, 27, 24, 21, ...
a. Arithmetic, common difference is 5 b. Arithmetic, common difference is -3

Answers

1 is A and 2 is B. :)))))

Margo estimated 182 divide 5 to be between 30 and 40 which basic facts did she use the photo has the basic facts

Answers

Answer:

Step-by-step explanation:

Margo estimated that 18 is close to 20 and 20/5=4

18 is also close to 15 and 15/5=3

so she figured her answer will be between 30 and 40

Answer:

[tex]15 \div 5[/tex]

Step-by-step explanation:

15 is the closest nuber to 18 making it a better assumption for her.

someone help me please i need this fast

Answers

Answer:

B, A vertical translation of 2 units.

Step-by-step explanation:

Its going up which means its positive NOT negative, vertical is up and down. Please put me branliest if I'm right which I'm very sure I am. Hoped I helped!

At the Houston Zoo there are 3 elephants for every 2 Cheetahs. If there are a
total of 200 animals at the Zoo, how many of these animals are elephants?

Answers

first of all that depends on the zoo animals

second of all, i just went over there yesterday

third of all, i’m pretty sure that question has to be on the zoo and not you

d. If the speed of a body is increased four times, how will its kinetic energy be affected?
Show by calculation.

e. By how many times will the kinetic energy of a body increase if its speed is tripled?
Show by calculation.

f. What change should be expected in the velocity of a body to maintain the same
kinetic energy, if its mass is increased sixteen times? How?

Is in less time than B. who has more power​

Answers

Answer:

E

Step-by-step explanation:

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