1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Oksana_A [137]
3 years ago
11

Problema 6 Descompongan los siguientes números en factores primos. ¿Es posible encontrar, para cada número, más de una descompos

ición en factores primos? a. 42 b. 31 c. 36 d. 45
Mathematics
1 answer:
Bogdan [553]3 years ago
8 0

Answer:

a: 42 =  2*3*7

b: 31 = 31*1

c: 36 = 2*2*3*3

d: 45 = 3*3*5

Cada descomposición es unica.

Step-by-step explanation:

Sabemos que todo número entero puede ser reescrito como un producto de números primos.

Esta descomposición es única, dado que una vez tenemos un número escrito como producto de primos, esos números primos no pueden descomponerse en otra cosa, por lo que se concluye que una descomposición en primos es única.

a: 42

Para obtener la descomposición, podemos comenzar dividiendo por primos, comenzando por los más bajos.

En este caso, podemos comenzar por 2:

42/2 = 21

asi, podemos reescribir:

42 = 2*21

Ahora ya tenemos un factor que es primo, el 2, y un factor que no lo es, el 21.

Asi que debemos reescribir el 21 como producto de primos.

Y sabemos que 3*7 = 21, donde ambos 3 y 7 son primos, entonces:

42 = 2*21 = 2*3*7

42 = 2*3*7

así hemos reescrito 42 como un producto entre números primos.

b. 31

31 es un número primo, por lo que su descomposición es:

31 = 31*1

c. 36

Comenzamos dividiendo por 2.

36/2 = 18

36 = 2*18

Volvemos a dividir por 2 el 18.

18/2 = 9

18 = 2*9

reemplazando eso en nuestra descomposición obtenemos:

36 = 2*18 = 2*2*9

9 es impar así que no podemos dividir por 2, pasamos al próximo número primo, el 3.

9/3 = 3

9 = 3*3

Reemplazando eso, obtenemos:

36 = 2*2*3*3

d. 45

no podemos dividir por 2, puesto que es un número impar, así que pasamos al próximo primo, el 3.

45/3 = 15

45 = 3*15

Ahora descompongamos el 15.

15/3 = 5

15 = 3*5  (notar que 3 y 5 son primos)

Reemplazando eso, obtenemos:

45 = 3*15 = 3*3*5

45 = 3*3*5

You might be interested in
What is the probability of rolling a number less than 4 on a number cube?
monitta

Answer:

1/2, 50%

Step-by-step explanation:

A cube has six sides. The probability of landing on a number less than four is 3/6 because there are 3 positive numbers less than 4. 3/6=1/2=50%

Hope this helps!

:)

4 0
3 years ago
Read 2 more answers
Angle a = 126. What is the measure of angle b? Explain how you calculated your answer.
Ivan

Answer:

e..r22 5x. answer c E-MC

3 0
3 years ago
Need help <br> What is the domain shown in the graph
topjm [15]

Answer:

A

Step-by-step explanation:

4 0
3 years ago
Deepak wrote out the steps to his solution of the equation startfraction 5 over 2 minus 3 x minus 5 plus 4 x equals negative sta
andre [41]

The solution is x=3/4

How can we solve given equation?

First, we will solve like terms. Then shift constant to other side and keep x on the same side to get the value of x.

We can solve given equation as shown below:

5/2-3x-5+4x=-7/4

(5-10)/2+x=-7/4

-5/2+x=-7/4

x=5/2-7/4

x= (10-7)/4

x=3/4

Hence, the solution is x=3/4.

Learn more about Linear equations here:

brainly.com/question/43297

#SPJ4

4 0
2 years ago
Can someone please help me in this question
Pie

Step-by-step explanation:

a) Let y = f(x) = 3x - 2x^2

f(-2) = 3(-2) - 2(-2)^2 = p

= -6 - 8

= -14

= p

f(2.5) = 3(2.5) - 2(2.5)^2 = q

= 7.5 - 12.5

= -5

= q

b) graphing

c) From the graph, you should be able to verify the following:

i) f(0.5) = 3(0.5) - 2(0.5)^2 = 1

ii) 0.5 = 3x - 2x^2 or x = 1.3, 0.2

iii) the maximum occurs at

f(0.75) = 1.125

d) the equation for the line of symmetry is x = 0.75

4 0
3 years ago
Other questions:
  • What is the vertex of y=2x^2+12x+22
    7·1 answer
  •  Hester sells televisions. She earns a fixed amount for each television and an additional $ 15 if the buyer gets an extended war
    9·1 answer
  • If a car is worth ​$4900when it is 4years​ old, how old will it be when it is worth ​$2800​
    5·1 answer
  • If one line passes through the points (3,-5) what must be the slope of the line parallel to it?
    7·1 answer
  • Yasmine purchased 6 heads of cabbage that each weighed 2 3/8 pounds. how much did the cabbage weigh all together?
    5·2 answers
  • 2 POILS
    11·1 answer
  • a number divided by 40 has a quotient of 6 with a remainder of 16. Find the number<img src="https://tex.z-dn.net/?f=%5Csqrt%5B%3
    9·1 answer
  • In a heard of x cattle, the ratio of the number of bulls to cows is 1:6. Find the number of bulls in the herd in terms of x.
    6·2 answers
  • Two sides of an obtuse triangle measure 9 inches and 14 inches. The length of longest side is unknown.
    15·1 answer
  • Question 12 of 25
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!