b)
(x + iy) (3 + i) = 2 + 4i​

Answers

Answer 1

Answer:

[tex]x = 1[/tex]

[tex]y=1[/tex]

Explanation:

Given

[tex](x + iy)(3 + i) = 2 + 4i[/tex]

Required

Find x and y

Open brackets

[tex]3x + x.i + 3y. i + y.i.i = 2 +4i[/tex]

[tex]i.i = -1[/tex]

So:

[tex]3x + x.i + 3y. i - y = 2 +4i[/tex]

Rewrite as:

[tex]3x - y+ x.i + 3y. i = 2 +4i[/tex]

By comparison:

[tex]3x - y = 2[/tex] --- (1)

[tex]x + 3y = 4[/tex] --- (2)

Make x the subject in [tex]x + 3y = 4[/tex]

[tex]x = 4-3y[/tex]

Substitute [tex]x = 4-3y[/tex] in [tex]3x - y = 2[/tex]

[tex]3(4 - 3y)- y=2[/tex]

[tex]12 - 9y- y=2[/tex]

[tex]12 - 10y=2[/tex]

Collect like terms

[tex]-10y = 2- 12[/tex]

[tex]-10y = - 10[/tex]

[tex]y=1[/tex]

Substitute [tex]y=1[/tex] in [tex]x = 4-3y[/tex]

[tex]x = 4 - 3 * 1[/tex]

[tex]x = 4 - 3[/tex]

[tex]x = 1[/tex]


Related Questions

What does this mean in spanish?

Answers

An elephant, a lion, and a gorilla escaped the zoo. You can even see that this sentence is full with cognates.

Hope this helps; have a great day!

The person on top is correct but you know you can use the translator right. :’^

Can someone please translate this!
please don't do if you don't know!

Answers

A cow arrives in the city of Acapulco. Visit Mexico after many years. She goes to Mexico because she likes to eat. When she gets to Acapulco, she just wants to eat. She is very hungry and that is why she just wants to eat. She goes to Carlos and Charlie's restaurant to eat. The cow reads the menu but she cannot understand it. She cannot understand it because it is written in French. The cow eats the menu because she is very hungry and then she goes to a very expensive restaurant in New York. She sits at a table in the corner. The cow reads the menu but she cannot understand it. It is written in English. The cow is very hungry and she goes to McDonald's in Vacaville, California. At McDonald's the menu is written in cow. The cow is very happy and she eats a lot.

Explanation:

I hope this helps you!

Complete with the correct word.
1. Un amigo de Elena le dio un ___________________ para un concierto.
2. Beatriz cumple dieciséis años hoy. Es su ____________________.
3. Ella dio una fiesta y sus amigos le dieron ____________________.
4. Hay dieciséis____________________ en la torta.
5. Los invitados picaron un poco. Comieron ________________ con queso.
6–7. Los ____________________ cantaron durante el concierto y los ____________________ tocaron.


please help
I will give brainliest and 5 * and 10 points for the best answer


I don't want to see an answer as a link

if i see a link i will report you

Answers

Answer: 1. Boleto 2. Cumpleaños 3. Cumpleaños 4. Velas 5. Galletas  6-7. I'm not sure

Explanation:

Do’nde celebran Las Fallas?

Answers

Las Fallas de Valencia (Falles en valenciano) son unas fiestas que van del 15 (plantá) al 19 (cremá) de marzo con una tradición arraigada en la ciudad española de Valencia y diferentes poblaciones de la Comunidad Valenciana

What is used in Spanish for questions, but not in English? *

a question mark

an upside down/backward question mark at the beginning

no question mark

all of the above

Answers

Answer:

an upside down/backward question mark at the beginning

Explanation:

That way, you can tell its a question from the beginning of the sentence.

Answer: B

Explanation:

Please help! Directions are at the top along with the vocab needed to be used. Will give thanks and give brainliest to the correct answers! Also will report anyone fishing for points!

Answers

Answer:

- Geografía

- Historia

- Anatomía

- Literatura

- Psicología

- Matemáticas

- Química (farmacéutica)

when the polynomial is 4x^3-7x^2-10x-7 divided by x-3​

Answers

Answer:

21

Explanation:

Explanation:

one way of dividing is to use the divisor as a factor in

in the numerator

It is 21..... jjkiefjolvwahikvojckobgkyfjibnojno

Yo _____
a la escuela a las siete de la mañana.

Answers

Yo fui a la escuela a las siete de la mañana.

The missing word is “fui” / la palabra que falta es “fui”.

Fui is the correct answer hope this helps

Help I don’t really understand I’ll give Brainliest

Answers

Answer:

i think this would be right:

1) La fresas ( strawberries) and las uvas (grapes)

-because it is talking about fruit salad and these are the only fruit items

2) el pavo (turkey) and la maiz (corn)

-thanksgiving nothing more needed

3) lechuga (lettuce) and Pepinos ( cucumbers)

-normal salad also nothing more needed

1. las fresas las uvas
2. el pavo la maiz
3. lechuga pepinos

Please help due today

Answers

1. A coffee shop

2. Home

3. The library

4. School

5. Kitchen


1. Una cafetera

2. A casa

3. La biblioteca

4. La escuela

5. La cocina


Wasn’t sure if you needed it in Spanish or English so I wrote both

Está llenando una solicitud para entrar a la universidad y tiene que contestar una pregunta acerca de su futuro. Escriba siete (7) oraciones sobre el tema indicado. Incluya el vocabulario que aprendió para hablar de la búsqueda de trabajo y las profesiones que le interesan. Mencione también las habilidades que le permitirán llevar a cabo lo que se propone. Use algunos verbos reflexivos/no reflexivos y la frase verbal ir+a+infinitivo cuando sea apropiado.

Answers

La respuesta correcta para esta pregunta abierta es la siguiente.

Estas son las siete oraciones al momento de contestar la pregunta sobre mi futuro.

Yo me veo en un futuro como un exitoso profesionista que ha logrado escalar la jerarquía empresarial para poder llegar a un puesto directivo en la empresa.

Para que esos suceda yo debo de ir cumpliendo con cada una de mis responsabilidades de tal forma que mis jefes se den cuenta de soy un profesionista cabal y cumplido.

Para ello, debo de empezar a ser muy cuidadoso con los aspectos más elementales de un profesional: la puntualidad, la asistencia, el orden, y la cortesía.

Esta será la base de mi crecimiento constante en el futuro, y el resultado será que me voy a ganar la confianza de mis compañeros y jefes para demostrar que soy una persona que puede dirigir los destinos de la empresa.

En el ámbito personal, me veo como un buen hombre de familia, con dos hijos a ls que tengo que dar un buen ejemplo como padre y como amigo.

En un futuro me veo viajando por diferentes lugares del mundo para conocer hermosos sitios históricos, arqueológicos y turísticos.

Finalmente, de manera integrar, tengo que ir avanzando poco a poco, de acuerdo a las circunstancias y a las oportunidades que se me vayan presentado.

Helppppppp pleaseeeeeee

Answers

Answer:

1. estan jugando

2. voy

3. contribuyo

4. hizo

5. le pidio

6. salieron

Explanation:

it should be right they're kinda mixing past and present

*
What is "como" without an accent?
why
because
how
Teat/like(same)/as

Answers

Answer: cómo without an accent is eat

Explanation: Example

Yo como arepa

I eat arepa

Lee las frases y determina si cada frase usa el subjuntivo o el indicativo. Read the sentences below and determine if each sentence is
subjunctive or the indicative mood. (1 point)
1. Estoy seguro que el museo de Pablo Picasso está en Barcelona.
2. No hay duda que Picasso es mi artista favorito.
3. No estoy cierto si pueda ir a España este verano a ver una exhibición especial.
4. Espero que mis padres compren unos boletos hoy.
a
b
1. subjunctive 2. indicative 3. indicative 4. subjunctive
1. Indicative 2. subjunctive 3. subjunctive 4. indicative
1. subjunctive 2. subjunctive 3. indicative 4. subjunctive
1. indicative 2. indicative 3. subjunctive 4. subjunctive
с
Od

Answers

Answer:

d

Explanation:

1. Indicativo

2 indicativo

3. Subjuntivo

4. Subjuntivo

Traduzca la siguiente frase.
The girls always compete.
A. Los muchachos siempre compiten.
B. A las muchachas también les gusta competir.
C. Las muchachas siempre compiten.
D. A los muchachos también les gusta competir.

Answers

The answer will be C

Answer:

C. Las muchachas siempre compiten.

Explanation:

im hispanic

What does the underlined word or phrase mean in the following sentence?

Ayúdame por favor.

fortunately
please
finally
of course

Answers

The meaning of the underlined word or phrase n the following sentence "Ayúdame por favor" is B. Please.

What is a phrase?

It should be noted that a phrase simply means a group of words that stand together a a conceptual unit to form part of a clause.

In this case, the meaning of the underlined word in the following sentence "Ayúdame por favor" is please.

Learn more about phrase on:

https://brainly.com/question/1877100

Answer: B: please

Explanation:

HELPPPPPPPPPPPPPPPPP

Answers

Answer:

Nos estrellamos

Explanation:

Helena y yo nos estrellamos

diferencias de análisis morfológico y análisis sintáctico​

Answers

Answer:

Differences of morphological analysis and syntactic analysis

Explanation:

Hay dos formas de analizar una oración. Desde el punto de vista sintáctico o morfológico. El primero se refiere a las funciones sintácticas que cada palabra tiene en una frase determinada. El segundo, hace referencia a la forma, clase o categoría que tienen los diferentes términos que conforman la frase.

La dependiente ____ la sudadera en color azul para mi.

buscar

quiere

lleva

paga

Answers

It can be either quiere or lleva
The answer is lleva ur welcome have a nice day and good luck!

Help please! Write the sentences in Spanish.

Answers

Answer: which sentence tell me then I can tell u

Explanation:


La etnología es un estudio antropologico comparativo de varias, en las cuales se analizan practicas, costumbres o valores.

True or false

Answers

True, la etnología estudia los pueblos y sus costumbre etc

Answer:

True

Explanation:

La etnología es un estudio antropologico comparativo de varias, en las cuales se analizan practicas, costumbres o valores translates to Ethnology is a comparative anthropological study of several, in which practices, customs or values are analyzed.

Ethnology is the branch of anthropology that compares and analyzes the characteristics of different peoples and the relationships between them, so I would say that the answer is likely true.  

A) Use the right form of the verb "Llevar" to complete the sentences below.
1. Lisa
una chaqueta negra a la clase.
2. Victor y Pablo pantalones cortos al parque.
3. Yo un pantalón azul y una camiseta.
4. Rosa, - ¿
tú falda o vestido a la fiesta?
WHO EVER ANSWERS I WILL MARK BRAINLIEST

Answers

1. Lisa LLEVA una chaqueta negra a la clase
2. Llevan
3. Llevo
4. Llevas

En el centro de la ciudad hay un jardín cuadrado cuya área de 64 m2. Si el municipio tiene planeado instalar una cerca de alambre. Cuantos metros se necesitan?

Answers

Answer:

32 metros

Explanation:

Primero averiguamos lo que mide cada lado del cuadrado

[tex]\sqrt{64} =8[/tex] metros

Después se multiplica lo que mide cada lado por el número  de lados

8 x 4 = 32 metros

* si hablas español te sera  más fácil encontrar respuestas en brainly.lat

Answer:

32 meters

Explanation:

a = 64m^2

a = lado^2

✓a = ✓64

lado = 8m

Perímeter = 4*lado

p = 4*8

p = 32m

1.
We were lost. Neither the map nor the GPS made any sense at that location!


2.
Patricia always answers questions correctly.


3.
I accidentally called out the wrong answer in class.


4.
After a long day of fishing, swimming, running, and exploring, the kids slept very well.
a.
Dar en el blanco
b.
No tener ni pies ni cabeza
c.
Dormir a pierna suelta
d.
Meter la pata

Answers

Answer:

I'm pretty sure 1 is b, 2 is a, 3 is d and 4 is c

Choose the correct future form of hablar.
Nosotros
con la maestra.
O hablaré
• hablarás
• hablaremos
hablarán

Answers

Answer:AAA

a

Explanation:

a AAA

I would say (Hablaremos)

In Europe which 2 religions were fighting during the time Spain was so rich
and powerful? *
baptists/hindu
catholics/protestants
catholics/buddists
Catholics/native americans

Answers

Answer:

Catholics/Protestants

¿Es cierto o falso, que normalmente no cambiamos los Sustantivos (Nombre) Propios de Español a Ingles?
Please select the best answer from the choices provided
True
False

Answers

it's true answer: verdad
Answer:
True
Hope this helps

I don't understand this question and could use some help understand the pronouns.

1. las, la , me , lo, nos , os , te , los
2. los, os , la , las, nos, te , lo, me
3. os, los , te , lo, la, nos, las,me
4. os, la , las , nos , te lo los me
5. la, lo , os , los, me , las , te , nos
6. comprar los, nos comprar, comprarlos, comprar las , comprarla, comprar os , los comprar , me comprar , comrparlas
7.la, te las, lo , os , me , los , nos
8. los, la , las , me , lo , os , nos , te

Answers

Answer:

Look at the explanation and match the pronoun with the object.

Explanation:

Object pronouns are the "object" of the sentence as opposed to the "subject."

In English they are: me, you, him/her, us, them

me = me

you (informal) = te

him = lo

her = la

it = la/lo depending on the grammatical gender of the noun

us = nos

you (Spain plural) = os

you (plural) = los/las depending if masculine/mixed or feminine

them = los/las depending if masculine/mixed or feminine

Read what it say to do on top then answer 11,12 and 13

Answers

11: the money 12: the shoes 13: the shirt
11. The money 12 the shoe 13 the shirt

Pls help!!! will give brainly!!!
how to say in spaish?
when it is spring i pick flowers with my friends

Answers

Cuando es primavera escojo flores con mis amigos
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