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user100 [1]
3 years ago
12

Actividad 1. Anota la respuesta correcta con color rojo en cada rectángulo vacío. Grado absoluto de la expresión Número de térmi

nos 2x − 5y 3 x 2y 3 5 x 2 + y 3 − z + xy2 z 3 2x 2 − 3y 3 + 5x 2y 3 z 2
Mathematics
1 answer:
Ludmilka [50]3 years ago
5 0

Queremos encontrar el grado absoluto de un polinomio dado.

Veremos que el grado absoluto es 10.

Definimos el grado absoluto como "la mayor suma de exponentes de un mismo termino".

Por ejemplo, en:

x^2*y^3 + 4*x*y

El primer termino tiene una <u>suma de exponentes</u> = 2 + 3 = 5

El segundo termino tiene una <u>suma de exponentes</u> = 1 + 1  = 2

Entonces el grado absoluto de ese polinomio es 5.

Ahora vamos a nuestro caso, tristemente es dificil interpretar lo que escrubiste ahi, ya que no esta claro cuales son los exponentes.

Creo que la expresion es:

2x - 5y^3*3x^2*2y^3*5x^2 + y^3  z + x*y^2*z^3*2x^2 - 3*y^3 + 5*x^2*y^3*z^2

Es bastante facil notar que la mayor suma de exponentes será el del segundo termino, la cual es:

3 + 2 + 3 + 2 = 10

Así concluimos que el grado absoluto del polinomio es 10.

Si quieres aprender más, puedes leer:

brainly.com/question/15739168

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Two friends sold many pieces of furniture and made ​$1550 during their garage sale. They had fifteen more​ $10 bills than​ $50 b
Novosadov [1.4K]

Answer:

The number of $ 10 bills is 37, the number of $ 20 is 6 and the number of $ 50 bills is 22.

Step-by-step explanation:

Let n₁ = number of $ 10 bills,

Let n₂ = number of $ 20 bills and

Let n₃ = number of $ 50 bills

Given that 10n₁ + 20n₂ + 50n₃ = 1550    (1)

Also, since we have fifteen more​ $10 bills than​ $50 bills, n₁ = n₃ + 15  (2)

and we have 4 more than three times as many​ $20 bills as​ $50 bills. n₃ = 3n₂ + 4. (3)

substituting equations (2) and (3) into (1), we have

10(n₃ + 15) + 20n₂ + 50n₃ = 1550

expanding the bracket, we have

10n₃ + 150 + 20n₂ + 50n₃ = 1550

collecting like terms, we have

60n₃ + 150 + 20n₂ = 1550

inserting equation (3), we have

60(3n₂ + 4) + 150 + 20n₂ = 1550

expanding the bracket, we have

180n₂ + 240 + 150 + 20n₂ = 1550

collecting like terms, we have

200n₂ + 390 = 1550

subtracting 390 from both sides, we have

200n₂ = 1550 - 390

200n₂ = 1160

dividing both sides by 200, we have

n₂ = 1160/200

n₂ = 5.8

n₂ ≅ 6 since it cannot be a fraction.

Substituting this into (3), we have

n₃ = 3n₂ + 4 = 3(6) + 4 = 18 + 4 = 22

substituting n₃ into (2), we have

n₁ = n₃ + 15 = 22 + 15 = 37

So, the number of $ 10 bills is 37, the number of $ 20 is 6 and the number of $ 50 bills is 22.

3 0
3 years ago
Graph f(x) = - 2/3 x -3​
Ipatiy [6.2K]

Answer:

-4.5,0

Step-by-step explanation:

                         

,

5 0
3 years ago
Find the volumes of the pyramid and triangular pyramid.
earnstyle [38]

Answer:

1) Volume of triangular pyramid = 33 cm³.

2) Volume of triangular prism = 99 cm³

Step-by-step explanation:

1) Volume of a triangular pyramid is given as;

V_py = ⅓Ah

Where A is area of base and h is height

We see from the diagram that;

A = 11 cm²

h = 9 cm

Thus; V_py = ⅓ × 11 × 9 = 33 cm³

2) Volume of triangular prism is given by;

V_pr = ½bhl

Where;

½bh is area of triangular cross section

l is length

We see from the diagram that ½bh = 11 cm² and L = 9 cm

Thus;

V_pr = 11 × 9 = 99 cm³

8 0
3 years ago
Kim, Mary and Erin made a total of 24 dozen cookies. Mary made twice as many cookes as Erin and Kim made 2 more dozen cookies th
zhenek [66]

Answer:

Erin made 5.5 dozen cookies.

Step-by-step explanation:

Total cookies made by Kim, Mary and Erin = 24 dozen cookies

Let Erin make cookies = x dozens

Mary made cookies = 2x dozens

Kim made cookies = x+2 dozens

Now, we need to find how many cookies did Erin made.

We can write:

x+2x+x+2=24

Solving the equation we get:

x+2x+x+2=24\\4x+2=24\\4x=24-2\\4x=22\\x=22/4\\x=5.5

So, Erin made cookies = x = 5.5 dozens

Mary made cookies = 2x =2(5.5) = 11 dozens

Kim made cookies = x+2 =5.5+2 = 7 dozens

Therefore, Erin made 5.5 dozen cookies.

4 0
3 years ago
2. The ratio of boys to girls in a classroom is 2 to 3. If there are 18 boys in the classroom, how many
andre [41]

Answer:

27 girls

Step-by-step explanation:

boys 2 : 3 girls

18: x

18×3= 54:2x

54÷2= 27

8 0
2 years ago
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