Ao se olhar para a história da Álgebra, desde os primórdios quando o objeto de estudo eram equações algébricas específicas até o estabelecimento de uma área de pesquisa que hoje é essencialmente abstrata (se levarmos em conta muitos dos problemas considerados atualmente pelos pesquisadores), perceberemos um longo caminho de busca de padrões e sedimentação teórica. Essa mesma história nos ensina como aconteceu o difícil estabelecimento dessa área de conhecimento. Houve a necessidade da construção de uma linguagem simbólica apropriada às questões tratadas aliada à consequente emersão de conceitos algébricos cada vez mais abstratos. Só assim a Álgebra se consolidou como área de conhecimento, área essa que é, portanto, fruto de um desenvolvimento histórico e não inata ao ser humano. Dito de outra forma, o conhecimento da Álgebra precisa do meio social para ser aprendido e assimilado pelo indivíduo. De acordo com a nossa estrutura social, esse ensino compete à escola ou, mais especificamente, à disciplina de Matemática. Calcule o produto dos monômios : (4 y²) . (4y)

com calculos pfvr

Answer:

31

Step-by-step explanation:

2 out of 35 are chess club members.

The fraction of chess club members in the survey is 2/35.

Now we find 2/35 of 550.

2/35 * 550 = 1100/35 = 31.43

Answer: 31

If there are 550 students at her school, then there are 31 chess club members in the entire school.

It is a branch of mathematics that deals with the occurrence of a random event.

If Carmen surveyed a random sample of 35 students and found that 2 are chess club members.

We can set up a proportion to solve for this:

2/35 = x/550

where x is the number of chess club members in the entire school.

To solve for x, we can cross-multiply and simplify:

2 × 550 = 35 × x

1100 = 35x

Divide both sides by 35.

x = 1100/35

x ≈ 31.43

Therefore, we can estimate that there are approximately 31 chess club members in the entire school.

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Answer 8 divide by 10 =0.8

0.8x 25=20

Step-by-step explanation: i hope this helps

The equation for the total cost, c, in terms of the number of songs, s, purchased is c = 1.25s and  $25 can purchase 20 songs.

Two or more expressions with an Equal sign is called as Equation.

Let x be the price of each song.

The cost to purchase 8 songs is given as $10, so we can write the equation:

8x = 10

To find the equation for the relationship between the total cost, c, and the number of songs, s, purchased, we can solve for x:

8x = 10

x = 10/8

x = 1.25

So the price of each song is $1.25, and the equation for the total cost, c, in terms of the number of songs, s, purchased is:

c = 1.25s

To find how many songs can be purchased for $25, we can use the equation:

c = 1.25s

Substitute c = $25, and solve for s:

25 = 1.25s

s = 25/1.25

s = 20

Therefore, at this rate, $25 can purchase 20 songs.

Hence, the equation for the total cost, c, in terms of the number of songs, s, purchased is c = 1.25s and  $25 can purchase 20 songs.

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Answer:

54.308 kilograms

Step-by-step explanation:

Answer:

i think it is B. x^ab, but i could be wrong

Step-by-step explanation:

pemdas so take

x^(a+b)

x^(ab)

x^ab

probably wrong

Answer: $44.55

Step-by-step explanation:

$45 times the 10% sales tax equals $49.50

$49.50 minus the 10% discount equals $44.55

Answer:

1/4

Step-by-step explanation:

probability of picking 5 is 1/4

the number of 5 in the set is 1 and the total is 4

hence 1/4

Answer:

1/4 or 25% chance

Step-by-step explanation:

There are 4 cards in total

There is only 1 5 card.

To find the probability of getting 5:

1/4 = 25%

Answer:

2730

Step-by-step explanation:

Answer:

2730................:)))))))))))))

Answer:

a)

Point A: Quadrant 1

Point B: Quadrant 3

b)

x intercept: -2, 0

y intercept: 0, 1

c)

slope: 1/2 or 0.5

Hi, you didn't add any picture or attached the info

Answer:

5 green

20 total

first green = 5/20 = 1/4

second green = 4/19

(1/4)(4/19) = 1/19

Step-by-step explanation:

Answer:

18 will be your answer

Step-by-step explanation:

Answer:

The answer is 18.

Step-by-step explanation:

[tex] \frac{x}{16} = \frac{9}{8} [/tex]

[tex]x = \frac{9}{8} \times 16[/tex]

[tex]x = \frac{9 \times 16}{8} [/tex]

[tex]x = \frac{144}{8} [/tex]

[tex]x = 8[/tex]

Therefor, the answer is x = 8.

Answer:

so G=1.19323671498

Answer:

x=24

Step-by-step explanation:

0.22(x+6)=0.2x+1.8

simplify the given equation

0.22x+1.32=0.2x+1.8

shift same kind of variables on one side

0.22x-0.2x=1.8-1.32

0.02x=0.48

For x

x=0.48/0.02

x=24

Check:

For checking subsitute the calculated value x if both sides of x are equal  then its true...

0.22(24+6)=0.2(24)+1.8

5.28+1.32=4.8+1.8

6.6=6.6

Answer:

c

Step-by-step explanation:

Step-by-step explanation:

To calculate the surface area of a 3D composite object, find the outside surface area of each object and then add the surface areas together. It could also be broken into one on top and one on the bottom. Determine the surface area of the outside faces of the right prism.

Answer:

eso no es una pregunta

Step-by-step explanation:

Answer:

73/100

73 over 100

Given:

45 people will accomplish the given task in 15 days.

To find:

Days taken by 15 people to complete the same task.

Solution:

Since, 45 people of a company can finish a work in 15 days

Therefore, 1 person can accomplish the task in days = [tex]15\times45[/tex]

                                                                                        = [tex]675[/tex] days

15 people will accomplish the same task in number of days = [tex]\frac{675}{15}[/tex]

                                                                                                    = [tex]45[/tex]

Therefore, number of days taken by 15 people to accomplish the same task will be 45 days.

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Answer:

27,353,088 cubic inches

Step-by-step explanation:

How to find the volume of a rectangular prism

To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.

Solve

In this case, The volume of a rectangular prism with a length of 112feet,

width of 212 feet, and height of 8 inches:

But in this case, we need to convert both the length and width to inches.

If 1ft = 12in

Then, 112ft = 1344in  (Multiply 112 by 12)

Also, 212ft = 2544 (Multiply 212 by 12)

So, the volume = 1344 x 2544 x 8

Calculated out this gives a volume of 27,353,088 cubic inches.

9514 1404 393

Answer:

  96 m²

Step-by-step explanation:

The total area of the two triangular bases is ...

  A = 2(1/2)bh = bh

  A = (3 m)(4 m) = 12 m²

The total area of the rectangular faces is ...

  A = Ph = (3 m +4 m +5 m)(7 m) = 84 m²

Then the total surface area of the prism is ...

  12 m² +84 m² = 96 m² . . . prism surface area

Answer: Penny is closer

Step-by-step explanation:

1 mile is 1760 yards- so 2 miles is 3520 yards, so Penny is closer... which makes no sense since they live in the same building, but there you have it

Answer:

543

Step-by-step explanation:

Answer: Mr. Nunez

Hope this helps :)

Answer:

Number 1 is 10

number 2 is D (6 to the second power)

Step-by-step explanation:

Step-by-step explanation:

the first answer is 10

the second answer is evaluate 6 squared

Answer: Where's the picture of the angle?

Step-by-step explanation:??

Answer:

85%

Step-by-step explanation:

P(not green) = 17/20 which equals 85%

Answer:

150.72 units^3

Step-by-step explanation:

Formula: πr2h

3.14 x 4^2 x 3 = 150.72 units^3

Answer:

0.

Step-by-step explanation:

When you multiply 2*0, it will be equal to 0. 0+5= 5.