Tomas learned that the product of the polynomials (a + b)(a2 – ab + b2) was a special pattern that would result in a sum of cubes, a3 + b3. His teacher put four products on the board and asked the class to identify which product would result in a sum of cubes if a = 2x and b = y.

Which product should Tomas choose?

(2x + y)(2x2 + 2xy – y2)
(2x + y)(4x2 + 2xy – y2)
(2x + y)(4x2 – 2xy + y2)
(2x + y)(2x2 – 2xy + y2)

Answers

Answer 1

[tex]c. \: (2x + y)(4 {x}^{2} - 2xy + {y}^{2} )[/tex] ✅

[tex]\large\mathfrak{{\pmb{\underline{\red{Step-by-step\:explanation}}{\orange{:}}}}}[/tex]

[tex](a + b)( {a}^{2} - ab + {b}^{2} )[/tex]

Substituting the values of "a = 2x" and ''b = y" in the expression, we have

[tex](2x + y)[( 2{x})^{2} - 2xy + {y}^{2} ] \\ = (2x + y)(4 {x}^{2} - 2xy + {y}^{2} )[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{.}}}}}[/tex]

Answer 2

The product that Tomas should choose should be (2x +y)(4x^2 – 2xy + y^2)

Sum of the cube of values

Given the sum of cubes expressd as:

a^3 + b^3 = (a + b)(a^2 – ab + b^2)

Given the following parametrs

a  = 2x

b = y

Substitute this values into the formula

a^3 + b^3 = (2x + y)((2x)^2 – 2xy + y^2)

a^3 + b^3 = (2x +y)(4x^2 – 2xy + y^2)

Hence the product that Tomas should choose should be (2x +y)(4x^2 – 2xy + y^2)

Learn more on sum of cubes here: https://brainly.com/question/26726803


Related Questions

in a model of a ship the most in 9 cm high while the most of actual shift is 12 metre height if the length of the ship is 28 how long is model ship​

Answers

Answer:

21cm

Step-by-step explanation:

A scale drawing is a reduced form in terms of dimensions of an original image / building / object

the scale drawing is usually reduced at a constant dimension

scale of the drawing = original dimensions / dimensions of the scale drawing

12/9 = 1.333333

1 : 1.3333333

length  of model sheep = 28 / 1.333333 = 21cm

SS below of my question

Answers

Answer:

its blurry

Step-by-step explanation:

Answer:

arccos(.34) = 70.12 ≈ 70

Step-by-step explanation:

Find BC
Round to the nearest tenth.
7
140°
B
13

Answers

Answer:

The answer is

Step-by-step explanation:

This is from khan academy. so You need to watch a video on khan academy to get help.

can someone please help me with this? PLEASE I'm so confused.

Answers

Answer:   5005

==================================================

Explanation:

Let's say we had the slots A,B,C,D,E,F. Each slot represents where a flower would go.

For slot A, we have 15 different flowers to pick from.

Then slot B has 15-1 = 14 choices

C has 15-2 = 13 choices

and so on. We count our way down until we fill up slot F.

The count down looks like this: 15, 14, 13, 12, 11, 10

Multiply out those values: 15*14*13*12*11*10 = 3,603,600

If order mattered, then this represents the number of ways to select 6 flowers from a pool of 15 total.

However, order does not matter in this case. All that matters is the group overall.

For any group of 6 items, we have 6! = 6*5*4*3*2*1 = 720 different arrangements. That means the value 3,603,600 is too large exactly by a factor of 720.

We divide by 720 to get to (3,603,600)/720 = 5005 which is the final answer

It's the number of combinations where we select 6 from a pool of 15.

-------------------------------

As you can guess, you could use the nCr combination formula as an alternative route. Plug in n = 15 and r = 6 like so

[tex]_n C _r = \frac{n!}{r!*(n-r)!}\\\\_{15} C _{6} = \frac{15!}{6!*(15-6)!}\\\\_{15} C _{6} = \frac{15!}{6!*9!}\\\\_{15} C _{6} = \frac{15*14*13*12*11*10*9!}{6!*9!}\\\\_{15} C _{6} = \frac{15*14*13*12*11*10}{6!}\\\\_{15} C _{6} = \frac{15*14*13*12*11*10}{6*5*4*3*2*1}\\\\_{15} C _{6} = \frac{3,603,600}{720}\\\\_{15} C _{6} = 5005\\\\[/tex]

In the third to last step, notice how we have the 15*14*13*12*11*10 up top and 6*5*4*3*2*1 down below.

This value 5005 can be found in Pascal's Triangle. Look in the row that has 1, 15, ... and count out 7 spaces from the left. You should arrive at 5005. However, you'll need a fairly large Pascal's Triangle to use this method.

Given:

Total number of flower cuts = 15 different flowers

Number of flowers Jeanine Baker wants to use = 6 flowers

To find:

Total number of ways 6 flowers can be chosen

Steps:

In this question, we need to find the total number of outcomes of choosing 6 random flowers from a total of 15 flowers

Let's give each flowers a letter, so there will be A, B, C, D, E, F, G, H, I, J, K, L, M, N and O.

Now let's find all the outcomes

Outcomes= ABCDEF, ABCDEG, ABCDEH, ABCDEI, ABCDEJ, ABCDEK, ABCDEL, ABCDEM, ABCDEN, ABCDEO.....

This method will take a lot of time so, i am going to use the formula

[tex]No.outcomes = \frac{n!}{r!(n-r)!}[/tex]

Here n = total number of items, and r = number of items chosen

Also the '!' means factorial, or the product of all positive numbers less then or equal to the number, so n! = n * (n-1) * (n-2) ..... * 1

So, now substituting the formula

[tex]No.outcomes = \frac{15!}{6! * (n-r)!}[/tex]

[tex]No.outcomes=\frac{15!}{6! * 9!}[/tex]

[tex]No.outcomes = \frac{15*14*13*12*11*10*9*8*7*6*5*4*3*2*1}{6*5*4*3*2*1*9*8*7*6*5*4*3*2*1}[/tex]

[tex]No.outcomes=\frac{15*14*13*12*11*10}{6*5*4*3*2*1}[/tex]          (cutting same numbers)

[tex]No.outcomes = \frac{7*13*3*11*10}{6}[/tex]                 (simplifying)

[tex]No.outcomes = \frac{30030}{6}[/tex]

[tex]No.outcomes=5005[/tex]

Therefore, the total number of ways the 6 flowers can be chosen is 5005 ways

Happy to help :)

If u need help in this topic feel free to ask

Solve the equation for l.

2l+2w+5=P

Answers

W=p-26/2 that’s your answer

Bab needs help please!

Answers

hi im so sorry i can not help yo with this question hopefully someone else is smart enough to help u i wish u the best im so so so o so so so sorry sorry sorry sorry sorry sorry Step-by-step explanation:

What is the value of y?
A.25 B.35 C.100 D.50

Answers

Answer:

B. 35

That is the answer

Hope it helps

Y is double 50. 100 degrees

PLSSS HELPPPPPPPP I NEEEED AN ANSWERRRRRR

Answers

Answer:

x=62

Step-by-step explanation:

The sum of x ,28, and 90 is 180 since it forms a straight line

x+28+90 = 180

Combine like terms

x+118 =180

Subtract 118 from each side

x+118-118 =180-118

x= 62

Answer:

Step-by-step explanation

x+28=90 degree(being perpendicular)

x=90-28

x=62

HELPP MEE PLEASE! I NEED HELPASAP PLEASE

Answers

Answer:

there is no image cannot help

Answer:

what do you need help with?

Brad wants to buy flowers for his friend
with $33. The daisies are $1 each and
the roses are $2 each. He buys 3 more
daisies than roses.
How much did the roses cost?

Answers

the roses were 20 dollars :) have a good day.

Someone help out with this

Answers

Answer:

k <= 11

Step-by-step explanation:

8+k <= -3

k <= -3 -8

k <= 11

(x^2+3) - [3x+(8-x^2) ]

Answers

[tex]2 {x}^{2} - 3x - 5[/tex] ✅

Step-by-step explanation:

[tex]( {x}^{2} + 3) - [3x + (8 - {x}^{2} )] \\ = {x}^{2} +3 - [3x + 8 - {x}^{2} ] \\ = {x}^{2} + 3 - 3x - 8 + {x}^{2} \\ = 2 {x}^{2} - 3x - 5[/tex]

[tex]\large\mathfrak{{\pmb{\underline{\orange{Happy\:learning }}{\orange{!}}}}}[/tex]

Which polynomial is factored completely?

Answers

Answer: fourth answer

Step-by-step explanation:

you cant factor it

Are 6:5 And 17:5 equivalent

Answers

Answer:

no

Step-by-step explanation:

Answer:

No

Step-by-step explanation:

Finding simple interest without a calculator
Diane deposits $800 into an account that pays simple interest at a rate of 5% per year. How much interest will she be paid in the first 3 years

Answers

Answer: you answer is 120.

Step-by-step explanation: all you have to do is multyply 800*.15 because that is how much present it is.

please mark me brainiest

I = prt

I= 800×0.05×3= 120

Answer- 120 $

The cost of 12 shirts is 84 find the cost of 6 shirts

Answers

Answer:

ok so 6 is half of 12 so we have to find half or 84 which is

42

Hope This Helps!!!

Answer: The answer is 42.

84/2= 42. May I have the brainiest?

A pharmaceutical company interviews 12 people for eight openings in the research department of the company. 7 of the 12 people are women. If all 12 are qualified, in how many ways can the employer fill the 8 positions if
(a) the selection is random

(b) exactly three selections are men?

plz help ASAP... I'll mark you as the brainliest!

Answers

Answer:

(a) 495, (b) 210

Step-by-step explanation:

Total number of persons = 12

number of openings = 8

number of women = 7

number of men = 12 - 7 = 5

(a) Number of ways to select the 8 persons

[tex]C_{8}^{12}\textrm{}\\\\= \frac{12!}{8!\times 4!}\\\\=495[/tex]

(b) Three are men

So, 3 men and 5 women

The number of ways are

[tex]C_{3}^{5}\textrm{} \times C_{5}^{7}\textrm{}\\\\= \frac{5!}{3!\times 2!}\times \frac{7!}{5!\times 2!}\\\\=210[/tex]

Two containers designed to hold water are side by side, both in the shape of a
cylinder. Container A has a diameter of 4 feet and a height of 13 feet. Container B has
a diameter of 6 feet and a height of 8 feet. Container A is full of water and the water is
pumped into Container B until Container A is empty.
After the pumping is complete, what is the volume of the empty portion of Container
B, to the nearest tenth of a cubic foot?

Answers

Answer:

hope you don't mind but im using this for points

I NEED HELP ASAP!What is the area of the triangle shown below? 10 10 12​

Answers

Answer:

[tex]h^2+6^2=10^2[/tex]

[tex]h^2+36=100[/tex]

[tex]h^2=100-36[/tex]

[tex]h^2=64[/tex]

[tex]h=8[/tex]

[tex]A=1/2 ~BH[/tex]

[tex]A=1/2(12)(8)[/tex]

[tex]A=48 ~units^2[/tex]

-----------------------

hope it helps...

have a great day!!

Answer:  48 square units

=============================================================

Explanation:

Draw a vertical line to cut the triangle into two equal parts. You'll get two right triangles.

The horizontal leg of one of those smaller triangles is 12/2 = 6 units. The hypotenuse is 10 units. Through the pythagorean theorem, you should find the vertical leg is 8 units.

We have a 6-8-10 right triangle.

The area of this smaller triangle is base*height/2 = 6*8/2 = 48/2 = 24 square units.

So the area of the larger triangle is 2*24 = 48 square units.

i need help 2(4+2x)≥5x+5

Answers

Answer:

x ≤ 3

General Formulas and Concepts:

Pre-Algebra

Order of Operations: BPEMDAS

Brackets Parenthesis Exponents Multiplication Division Addition Subtraction Left to Right  

Distributive Property

Equality Properties

Multiplication Property of Equality Division Property of Equality Addition Property of Equality Subtraction Property of Equality

Algebra I

Terms/Coefficients

Step-by-step explanation:

Step 1: Define

Identify

2(4 + 2x) ≥ 5x + 5

Step 2: Solve for x

[Distributive Property] Distribute 2:                                                                 8 + 4x ≥ 5x + 5[Subtraction Property of Equality] Subtract 5x on both sides:                       8 - x ≥ 5[Subtraction Property of Equality] Subtract 8 on both sides:                        -x ≥ -3[Division Property of Equality] Divide -1 on both sides:                                 x ≤ 3

Select the correct answer.
which point is a reflection of 2 (52, 3)
across the x-axis?
87-y
7
6
5
4
4.
.
3
N

Answers

Point C is the reflection.

Hi answeeeer and no links

Answers

Paper he needs = total surface area

So to break it down into 2D shapes, that prism has 2 2D triangles, and 3 2D rectangles of different sizes.

The triangles are the same size, since you have 2, just multiply 2 by the formula for the area of a triangle: 1/2(base)(height) which is 2x1/2(5)(12) = 60

Next you'll need the area of all the rectangles: length x width. which would be (5 x 5) + (13 x 5) + (12 x 5) = 150

So the total amount of wrapping paper he'd need is 150mi^2

What is 3,700,000 in scientific notation??

Answers

Answer:    Choice D)  3.7 * 10^6

=========================================================

Explanation:

Place a decimal point between the first two digits 3 and 7.

Now ask yourself how you can go from 3.7 back to the original value. Notice we can move the decimal point 6 spots to the right to go from 3.7 back to 3,700,000

Therefore, the exponent over the 10 is 6. The exponent is positive to mean we move the decimal point to the right. If we had a negative exponent, then we'd move left.

You can use a calculator to confirm that 3.7 * 10^6 = 3,700,000

--------------

Side notes:

3,700,000 = 3 million, 7 hundred thousand

3,700,000 = 3.7 million

The area of the triangle below is 4.5 square inches. What is the length of the base?

Answers

Answer:

Can you please send the length of the height if possible.

Step-by-step explanation:

Also the the formula to solve this is the exact opposite of Area= base times height divided by 2.

first step you need to do is multiply 4.5 by 2 to get 9. then you have to divide 9 by the height. Then you will get the value of the height. Hope you understood!

Answer: 3

Step-by-step explanation: 3

A line has a slope of
3/2
and a y-intercept of
4/5

Which of the following is an equation of the line?

Answers

I this is my workings.

9514 1404 393

Answer:

  (d)  15x -10y = -8

Step-by-step explanation:

Using the given values for slope (m) and y-intercept (b), the slope-intercept form of the equation is ...

  y = mx + b

  y = 3/2x +4/5

Multiplying both sides by 10 gives ...

  10y = 15x +8

Subtracting 10y+8 from both sides, we have ...

  -8 = 15x -10y

In standard form, this is ...

  15x -10y = -8

The girls in Lana’s troop set a goal to sell 1,000 boxes of cookies this year. There are 13 girls in the troop. At least how many boxes of cookies should each girl sell to reach their goal?

Answers

Answer:

77 boxes

Step-by-step explanation:

Step 1:

Lana's troop must sell 1000 boxes of cookies, but there are 13 girls in total. Supposing that each girl will sell an equal amount of boxes, we can simply divide:

[tex]1000[/tex]÷[tex]13\approx76.92[/tex] boxes.

Step 2:

However, it would seem unlikely that the girls would decide to sell fractions of a box of cookies. We should round...up or down?

If we round down, each girl will sell 76 boxes of cookies. Hmm... then they would'nt be able to sell a total of 1000 boxes of cookies! We need to round up.

Therefore, each girl should sell at least [tex]\fbox{77}[/tex] boxes.

I hope this helps! Let me know if you have any questions :)

Find the measure Of K

Answers

Answer:

K = 10

Step-by-step explanation:

Since this is a right triangle, we can use trig functions

sin theta = opp/ hyp

sin K = 11 / 61

Taking the inverse sin of each side

sin ^-1 ( sin K) = sin ^-1 (11/61)

K =10.38885782

K = 10

Help please will be marked as brainliest if correct

Answers

Answer:

12.95

Step-by-step explanation:

1. 173.43

2. 325.54

3. 0.6794

4. 76.45

Unlock number: 12.95

Answer:

173.43

325.54

.6794

76.45

Step-by-step explanation:

4feet times 15inches

Answers

This what I use on my phone to get an answer

Round to the nearest foot.

Answers

Answer:

11 or exact is 10.8 ft.

Step-by-step explanation:

we do 2.7*4 to find the length of the actual car

since 1 inch is 4 feet in real life.

2.7 would be 2.7*4 feet in real life

2.7*4 = 10.8 which is rounded to the nearest foot, 11.

Answer:

10.8

Step-by-step explanation:

model: real life

1 inch : 4 ft

The model is 2.7 inches

Multiply by 2.7 inches

model: real life

1 *2.7  : 4 *2.7

2.7 in : 10.8 ft

Other Questions
Both Chad Lindsey and Wesley Autry...Asurvived subway accidents.Bwere on the platform with the author.knew the man who fell on the tracks.Dsaved people who fell on the subway tracks.Common lit story help him up! A witnesss account of panic on a subway platform 6. What is the value of x?A. 10B. 8C. 4D. 6 The local muffler replacement shop charges $75 for parts and $25 per hour for labor. Write a expresstion with parentheses to describe the cost, in dollars, of a replacement if the job takes 4 hours. A rhombus has the same properties as a square. True False Explain how new inventions made World War 1 the most violent war up to that point in history brainliest!Which statement is true of formal poetry?Formal poetry uses very formal language and vocabulary.Formal poetry is always between ten and fourteen lines long.Formal poetry avoids the use of figurative language.Formal poetry uses rhyme or rhythm in a regular pattern. WILL GIVE BRAINLIEST IF CORRECT.A reporter pays for an interview with a popular celebrity who is struggling with substance abuse. What issue would a media critic most likely cite against the reporter?corporate conflict of interestadvertiser conflict of interestsensationalismcheckbook journalism In the Zimmerman note, Germany offered which of the following to Mexicoif it joined the Central Powers? What is true about -9.94 and -9.8 whenplotted on a number line? How many particles are in 7.07x10^-6 moles of a substance? The mean temperature for the first 7 days in January was 3 C.The temperature on the 8th day was 7 C.What is the mean temperature for the first 8 days in January? can somebody help me pleeaaassseee? 5 star rate WILL MARK YOU IF YOU HELP ME PLEASE!! Compare how plants and animals get food. 1. Plants make food in the mitochondria andanimals eat other organisms.2. Plants make food in the chloroplasts andanimals eat other organisms.3. Plants make food in the chloroplasts andanimals make food in the mitochondria. Find the length of side x in Andrew collects stamps. He collected a total of 150 stamps. If 68% of the stamps he collected were foreign, how many other stamps did he collect? Viruses can't replicate without a host cell.A. TrueB. False I need help from the smart English/LA nerds of brainly!! Please help ASAP, because this is timed and very important. No links or fake answers. Correct answers will receive brainliest. Sheila: Hi Mike. Where are you going with that big?Mike: I'm on my way to the airport. I'm flying to Italy thiseveningSheila: That sounds fun! Are you going onor areyou going for work?Mike: It's a business trip, but I will have some time forsightseeingSheila: That's great. Have you ever been to Italy?Mike: No. In fact, this is my first time travelingSheila: Really? Did you remember to take yourwith you?Mike: Yes, of course. I have my passport, money, and ticketSheila: That's good! You can'tthe plane withoutyour passport!passengerabroadofficialboardpassportvacationsuitcase How did the Korean War and the Vietnam War fit within the broader context of the Cold War?