Unfortunately, due to a couple of pitiful people (some poor kids who got so lost in life, they resulted to spamming), I’m having to repost this:

OK, so I was learning about how to factorize a quadratic polynomial. And I also wrote notes on it. Now, even though I know that my notes are definitely correct, I’m getting stuck at a certain point. Please look at the attached photo, and explain why the variable X and the number 4 have been removed when we get the factors. I’d greatly appreciate it. Thanks!

Unfortunately, Due To A Couple Of Pitiful People (some Poor Kids Who Got So Lost In Life, They Resulted

Answers

Answer 1

Answer:

so when factorising, you first remove the common factors. in this case it is (x+3)

so what is remaining is the x and 4

you group that together.

my teacher explained that when factorising, after removing the common factor then you divide each term by the common factor, and then group the answers to that in brackets.

so it will be,

[tex]x(x + 3) + 4(x + 3) \\ (x + 3)( \frac{x(x + 3)}{x + 3} + \frac{4(x + 3)}{(x + 3)} [/tex]

so basically whats left after dividing, is x and 4 because the x+3 cancel off.

and thats how you get the answer of

(x+3)(x+4)

hope this helps;)


Related Questions

Paulo comprou 60 maçãs e 24 laranjas. Ele pretende organizar essas frutas em embalagens plásticas. Em cada embalagem plástica ele colocará apenas um tipo de fruta e na maior quantidade possível, para que todas as embalagens fiquem com a mesma quantidade de frutas. Qual a quantidade de embalagens plásticas que Paulo irá precisar para organizar essas frutas? 7. 12. 84. 120.

Answers

Responder:

7

Explicação passo a passo:

Obtemos o maior fator comum de ambas as frutas:

Apple = 60

Laranja = 24

Fatores de:

60 = 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30 e 60

24 = 1, 2, 3, 4, 6, 12 e 24

O maior fator comum é 12

Por isso,

Número de malas necessárias para:

Maçãs = 60/12 = 5

Laranjas = 24/12 = 2

Total de sacos plásticos necessários = 5 + 2 = 7

23.45+ 435.1 =??? plz help me​

Answers

Answer:

458.55

Step-by-step explanation:

23 + 435 = 458

.45 + .1(0) = .55

458 + .55 = 458.55

.1 is .10 (Think of it as a 10)

Find x. Round your answer to the nearest tenth of a degree

Answers

Answer:

58.3

Cos(x) = adjacent / opposite

Cos(x) = 10/17

Sin(x) = 0.59

Sin-1(0.59) = 53.8

x equals 58.3 degrees

encontrar la x y explicar el resultado

[tex]\sqrt{2x+6} = 2[/tex]

Answers

2x=4-6 we switched the variable
2x=-2 divided equation by two on each side
X=-

A line has equation y= −2/3 x-4.Write down the gradient of the line.

Answers

-2/3 because y=Mx+b and u already have everything so yeah I’m sure of my answer hope that helps !!

Answer:

y = mx + c ... linear graph

y = -2/3x - 4

the gradient is -2/3

Help, please :)


I really appreciate if you help me with steps as well, thanks! <3​

Answers

Answer:

Step-by-step explanation:

All we have to do here is to find the measure of the central angle; the measure of the central angle of a circle is the same measure as the arc it intercepts. Angle DQE in degrees = arc DE in degrees. Use the arc length formula to find the measure of the central angle:

[tex]AL=\frac{\theta}{360}*2 \pi r[/tex] and filling in:

[tex]8.73=\frac{\theta}{360}*(2)(3.14)(10)[/tex] which simplifies to

[tex]8.73=\frac{62.8\theta}{360}[/tex] which simplifies a bit more to

[tex]\frac{360(8.73)}{62.8}=\theta[/tex] so

[tex]\theta=50.04[/tex] degrees. That means that arc DE also measures 50.04 degrees.

A music store sells electric guitars in 3 colors and 2 sizes. How many different guitar can you buy

Answers

Answer:

the answer is 6

Step-by-step explanation:

3 times 2 equals 6

What is an equation of the line that passes through the points (-5, -1) and (5, 3)?

Answers

So two co-ordinates are (2,-5) and (0,-3)

First obtain the gradient (slope) by (y2-y1)/(x2-x1) so (-3–-5)/(0–2) so 2/-2 = -1

So the first part of the equation is y=-x.

Then to find out how many you need to + or - just calculate it:

In (2,-5), -x is -2. To get to -5 you need to subtract another 3, hence y=-x-3. It shouls be the same in the other co-ordinate (0,-3) if I’ve done it right: -x = 0. Subtract 3 for -3.

So y = -x - 3 should do it.
3.4K views





Related Questions (More Answers Below)

Which statement describes the graph of f(x) = 4x2 + 20x + 25?

The graph does not intersect the x-axis.
The graph touches the x-axis at (–2.5, 0).
The graph intersects the x-axis at (–0.4, 0) and (0.4, 0).
The graph intersects the x-axis at (2, 0) and (5, 0).

Answers

Mark brainlest please


Answer

The graph intersects the x-axis at (2, 0) and (5, 0).

Answer:

D

Step-by-step explanation:

How do you solve this?

Answers

Answer:73825

Step-by-step explanation:

Shuts shield grid

Answer:

[tex]j=8[/tex]

Step-by-step explanation:

Special right triangles:

The sides of all 30-60-90 triangles are in the proportion [tex]x:x\sqrt{3}:2x[/tex], where [tex]2x[/tex] is the hypotenuse of the triangle and [tex]x[/tex] is the side directly opposite to the 30 degree angle.

Since the base of the triangle is directly opposite to the 30 degree angle, the hypotenuse, j, must be equal to [tex]4\cdot 2=\boxed{8}[/tex]

Basic trig:

[tex]\sin 30^{\circ}=\frac{4}{j},\\j=\frac{4}{\sin 30^{\circ}}=\boxed{8}[/tex]

who was found the math​

Answers

Answer:

Math is not discovered, It's Invented.

[tex]\color{red}{==========================}[/tex]

✍︎ʜɴǫɴ

✍︎ʀʀʏɴʟʀɴɪɴɢ

by rounding to one significant number, estimate the answer to these questions:

a) 687x164
b) 476x2354
c) 8612x1497

Answers

Answer:

a) 140000

b) 1000000

c) 9000000

Step-by-step explanation:

a) 687x164

700 * 200 =140000

b) 476x2354

500*2000=1000000

c) 8612x1497

9000*1000=9000000

In a Survey of 500 people , 350 people dank only one drink. 60 people dink none them. Find the number of people who drink both ,

Answers

Answer:

90

Step-by-step explanation:

350+60= 410 & 500-410=90

Answer: The number of people who drank both is 90

This is because we need to subtract 350 people from 500 people, because we know that they didn't drink the drink. We have 150 people left. Another 60 people don't drink the drink at all, so we need to subtract that from the remaining 150 people left. We get the solution of 90 people who could only have drank both drinks based of of the givens you have provided.

NEED HELP! Which of the following points are in the third quadrant of the xy-plane? Check all that apply.

A. (4,8)
B. (-4,-2)
C. (6,-2)
D. (-7, 6)
E. (-2,-8)
F. (2, 2)

Answers

Answer:

B. (-4,-2)

E. (-2,-8)

Step-by-step explanation:

Quadrant three has a negative x and negative y.

PLEASE HELP IM SORRY THE PIC IS BLURRY I NEED TO PASS SUMMER SCHOOL

Answers

Aswer:

c represnt the function hope it helps you make me brainlest pls

Which of the following functions is graphed below?

Answers

Answer:

Step-by-step explanation:

The answer is D because the parabola is an empty circle and is positive which would mean its greater than 1 and the line has a solid point and is negative which means less than or equal to.

Which algebraic expression represents the phrase "four times a number"?
O4 + c
Oc-4
O 4-0
O 40

Answers

Answer:

O 40

Step-by-step explanation:

because if you are doing algebra the term for a number is a letter and instead of doing 4xO you substituted to 4O

What is the solution

Answers

Answer:

(3,2)

Step-by-step explanation:

If you look at the x-axis it 3 to the right and your y-axis is 2 up and so the pair is (x is first, y is second) so it (3,2).

I need to find the value of x. Help please

Answers

Answer:

[tex]x=68[/tex]

Step-by-step explanation:

In the figure, we shown all four exterior angles of the polygon. The sum of the exterior angles of any polygon is equal to [tex]360^{\circ}[/tex].

Therefore, we have:

[tex]79+(x+10)+(x-1)+(2x)=360,\\79+x+10+x-1+2x=360,\\88+4x=360,\\4x=272,\\x=\boxed{68}[/tex]

X=68 is the correct answer to your question

Place the angles in order from largest (at the top) to smallest (at the bottom).

Answers

Answer:

∠A

∠B

∠C

Step-by-step explanation:

Place the angles in order from largest (at the top) to smallest (at the bottom).

∠A

∠B

∠C

Solution:

A triangle is a polygon with three sides and three angles. Types of triangles are isosceles, equilateral, acute, obtuse, scalene and right angled triangle.

If two sides of a triangle are unequal, then the value of the angles opposite to these sides are unequal, and the greater angle is that which is opposite to the greater side.

BC > AC > AB

Therefore the angles opposite are proportional to this sides. Hence:

∠A > ∠B > ∠C

Two jackets have a combined cost of $98. Jacket a costs $12 less than jacket b. How much does each jacket cost?

Answers

Answer:

Jacket A costs 43$

Jacket B costs 55$

Step-by-step explanation:

According to the Question,

Given, Two jackets have a combined cost of $98. Jacket 'A' costs $12 less than jacket 'B'. Thus, if the jacket B Cost 'X' So, Jacket A costs 'X-12'.

Therefore, Jacket A + Jacket B = 98

X-12+X = 98

2X = 110

X = $55 ( Cost of jacket B) & Cost of Jacket A is 55-12 = 43$ .

Please help me with this.​

Answers

9514 1404 393

Answer:

  A, C, D, G

Step-by-step explanation:

The independent variable is plotted on the horizontal axis. If you want to find out what it is, read the axis label.

The dependent variable is plotted on the vertical axis. If you want to find out what it is, read the axis label.

To find the distance from home at some time, look up that time on the horizontal axis, and read the corresponding distance value from the graph. The maximum distance from home is the peak value of the graph.

"Stopping" means that distance doesn't change, even while time continues to increase. The curve is horizontal where the person is stopped.

The difference between an observational study and an experiment is that:


A. in an observational study, only one group is studied, and in an experiment, two groups are studied.
B. in an observational study, the researchers do not control treatment, and in an experiment, they do.
C. in an experiment, cause-and-effect is analyzed, and in an observational study, it is not.
D. in an experiment, one group is studied over a short period of time, and in an observational study, the group is studied over a longer period of time.

Answers

Answer:

B

Step-by-step explanation:

An experiment is a study carried out in a controlled environment where the person undertaking the research hopes to understand cause and effect between the independent and dependent variables. An example of a experiment is the palovian experiment

The independent variable is the variable that the person carrying out an experiment changes or manipulates. the independent variable usually have a direct effect on the dependent variable

The dependent variable is the variable that is being measured in an experiment. It is usually affected by the independent variable

Observational study is the study where the researcher observes and measures cause and effect between independent and dependent variables without trying  to control or influence the population

This is another one same thing but not the same problem

Answers

#1 is a. 11.25

#2 is h. 375

#3 is B 82.50

find the area of the Shaded sector. round to the nearest hundreds place
PLS HELP​

Answers

Answer:

92.99 units squared

Step-by-step explanation:

area of a circle is

[tex]\pi \times {r}^{2} [/tex]

just multiply that by 74/360, the fraction of a full circle we got here

en un salón para eventos (con 4 patas) y banquillos (con 3 patas). si hay x sillas y y banquillos,¿cuántas patas podrías contar en total?


ayuda porfa es para ahora ​

Answers

Could you translate this to English

What is the vertex of the parabola with the equation y
3x2 + 2x – 8?

Answers

Answer:

Step-by-step explanation:

If you're tasked to do this mathematically, you have to complete the square to get it into vertex, or work, form. Do that by first setting the equation equal to 0 then moving over the constant:

[tex]3x^2+2x=8[/tex] Next you have to have a +1 as the leading coefficient, and ours is a 3, so we factor it out:

[tex]3(x^2+\frac{2}{3}x)=8[/tex]. Now take half the linear term, square it, and add it in to both sides. Our linear term is 2/3. Half of 2/3 is 2/6 which reduces to 1/3. Squaring 1/3 gives us 1/9, so that's what we add in.

[tex]3(x^2+\frac{2}{3}x+\frac{1}{9})=8+\frac{1}{3}[/tex] to the right of the equals sign we added in 3*1/9 which is 3/9, which reduces to 1/3. Now we clean up both sides. The right side is easy; the left side, not so much. The reason we do this (complete the square) is to get a perfect square binomial on the left. When we re-write the left side into that perfect square binomial, we get

[tex]3(x+\frac{1}{3})^2=\frac{25}{3}[/tex] Now we move the constant back over and set the parabola back equal to y:

[tex]y=3(x+\frac{1}{3})^2-\frac{25}{3}[/tex] which shows us that the vertex is

[tex](-\frac{1}{3},-\frac{25}{3})[/tex]

Suppose you are the owner of a sari sari store and you have 8 pieces of different canned goods [ligo,555,mega young`s town,master,saba,blue bay,and century] and you are only allowed to display 7 canned goods on the shelf list down all the possible combinations?


Help me with this plss
Thank you♥

Answers

This question using the combinations concept, as the order in which the canned goods are displayed is not important. Thus, using the combinations formula, we get 8 ways, which are:

555,mega, young`s town,master,saba,blue bay,and centuryligo,555,mega, young`s town,master,saba,blue bayligo, mega, young`s town,master,saba,blue bay,and centuryligo, 555, young's town, master,saba,blue bay,and centuryligo,555,mega, master, saba, blue bay,and centuryligo,555,mega, young`s town,saba,blue bay,and centuryligo,555,mega, young`s town,master,blue bay,and centuryligo,555,mega, young`s town,master,saba, and century.

Combinations formula:

[tex]C_{n,x}[/tex] is the number of different combinations of x objects from a set of n elements, given by the following formula.

[tex]C_{n,x} = \frac{n!}{x!(n-x)!}[/tex]

In this question:

7 from a set of 8, so:

[tex]C_{8,7} = \frac{8!}{7!1!} = 8[/tex]

8 possible ways, in which each way we remove one of them, in the list given above.

A similar problem is found at https://brainly.com/question/23302762

What are the areas please

Answers

1. 105 units²

2. 78 units²

Step-by-step explanation:

1.

Since the middle is a square, the base of all 4 triangles are equal.

Let x be the height of the triangles.

The height of the triangle can be defined as:

15 = 7 + x + x

15 = 7 + 2x

15 - 7 = 2x

x = 8/2

x = 4

Area = area of square + 4(area of triangle)

= (7 x 7) + 4(1/2(7)(4))

= 49 + 56

= 105 units²

2.

Area = area of triangle + area of rectangle

area of triangle = ½ x base x height

base = 4 + 4 + 4

= 12

height = 15 - 6

= 9

area of triangle = ½ x 12 x 9

= 54 units²

area of rectangle = 6 x 4

= 24 units²

Area = 54 + 24

= 78 units²

Which weights are within 2 standard deviations of the mean? Select three options.

Answers

Answer:

8.9 lbs

9.5 lbs

10.4 lbs

are correct three options for this

Step-by-step explanation:

but u should give options too

It took me a long time to find the answer from book..

so If you had given options, I would not have spent so much time to find the ans..

From the next time you have to take care of it okay

seeya !! (◕ᴗ◕✿)

Other Questions
Write 9 simple, compound, or complex sentences about your favorite foods using simple present tense.Write 3 sentences that are positive statements (ends in period).Write 3 sentences that are negative statements (ends in period).Write 3 sentences that are questions.Then rewrite those sentences using simple past tense (keep the same verb but the sentence can change a bit).Then rewrite those sentences using simple future tense (keep the same verb but the sentence can change a bit).Mark your verb boldIn total you should have 9 sentences in simple present, 9 in simple past, and 9 in simple future = 27 sentences. I need help with this.If you get it right you will getBrilliant, 5 stars, and thank you if f( x )3 X + 4 and g(x)= X + 1 find the value of x given that F - 1g( x) = 2 the missing child (was founded or was found by other boy ) plllzzz help larva stage of insect miving in mass is called phn tch th tc truy cu trch nhim hnh chnh i vi gio vin trong v vic gio vin nh hc sinh 323323332222222222222222222 Use the discriminant to determine how many and whatkind of solutions the quadratic equation x2 - x = 1/4has. Which of the following best describes bear hibernation?a. It causes hormonal imbalance and cellular communication failure.b. It is a disruption between circadian rhythms and environmental cues.c. It is a physiological condition resulting from north-south and south-north travel.d. It is a psychological phenomenon that affects people traveling between time zones. find the area of this figure 15ft 10ft 10ft 5 The Supreme Court limits the powers of Congress by Ricky is playing a racing game on PS5. He earns 20 points every 1 level he passes. He earns 24 points for every 15 laps. He drove 45 laps and passed 6 levels.How many points did Ricky earn? You spend days wandering aimlessly around a park with many paths that end at different parts of the park. One day when you arrive at the park, you get a call on your cell phone from a cousin whom you haven't seen in years, and she says she is waiting for you in a particular section of the park. Even though the paths are complicated and twisted, you manage to find the shortest route to your cousin. Tolman would explain your efficient passage through the park as an example of _____ Group of answer choices Instructions: Find the area of the sector. Round your answer to the nearest tenth.Ill mark brainliest please help x/3 -6 =ySolve for x what factors contributed to the type of economy that characterized the New South? Given f(x) and g(x) = k-f(x), use the graph to determine the value of k.f(x)g(x)A. -5B. -1/5C. 1/5D. 5 Which of the following is the best definition of the domain of a relation? A. The set of all allowable input values, or values B. The set of all allowable output values, or y-values c. The set of all allowable input values, or x-values D. The set of all allowable output values or values explain the debates concerning the day of reconciliation Please show the steps. and the answer