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
Sholpan [36]
3 years ago
15

Find the sum of -2 + i and its complex conjugate. Write your answer in the form a + bi.

Mathematics
1 answer:
Anuta_ua [19.1K]3 years ago
7 0

Answer:

- 4

Step-by-step explanation:

The conjugate of - 2 + i is - 2 - i, thus

- 2 + i + (- 2) - i

= - 2 + i - 2 - i ← collect like terms

= - 4 ← in the form a + bi with b = 0

You might be interested in
Bonjour est que quelqu'un pourrait m'aider svp pour cette exercice des mathématique Merci
Ivanshal [37]

(Le français n'est pas ma langue maternelle, alors je m'excuse d'avance si quelque chose n'est pas clair!)

Il me semble que le triangle MNP devrait ressembler à celui que j’ai attaché.

Les triangles MNP et MQR sont similaires, les côtés correspondants sont donc proportionnels:

\dfrac{MQ}{MN}=\dfrac{MR}{MP}=\dfrac{QR}{NP}

\implies\dfrac{2,5}6=\dfrac{MR}{5,7}=\dfrac{1,9}{NP}

\dfrac{2,5}6=\dfrac{MR}{5,7}\implies MR=2,375

\dfrac{2,5}6=\dfrac{1,9}{NP}\implies NP=4,56

3 0
4 years ago
Find the GCF of the following literal terms. xxyyyzz and xxxxzzz
irga5000 [103]
The GCF would be X because xxyyyzz ad xxxxzzz both share an X.
8 0
3 years ago
Read 2 more answers
What is the ships speed
jarptica [38.1K]

Answer:

You need a photo or text to back that up, we can't solve this without an image or something that explains this problem.

Step-by-step explanation:

7 0
3 years ago
The function f(x) = x2 is graphed above. Which of the graphs below represents the function g(x) = (x + 1)2?
ArbitrLikvidat [17]

Answer: the answer would be Y

Step-by-step explanation: I took the test

8 0
3 years ago
Read 2 more answers
Now Cathy is three times as old as Katie. In six years Cathy will be only twice as old as Katie. How old is each girl now?
klasskru [66]

Answer:

6 and 18

6+6=12

18+6=24

12x2=24

Unless a number is given it is mainly trial and error so guessing numbers that fit the first part of Ax3=B

Step-by-step explanation:

5 0
3 years ago
Other questions:
  • What do we need to do?
    8·2 answers
  • Which expression represents the distance -3 and 5 on the number line?
    15·1 answer
  • A rectangle has an area of 10 square feet. What could its perimeter be?
    12·1 answer
  • Why is 3x 1/10 less than 3x10
    5·2 answers
  • What is 40,000,090 in word form?
    15·1 answer
  • Suppose we have two thermometers. One thermometer is very precise but is delicate and heavy (X). We have another thermometer tha
    10·1 answer
  • Find the local extreme values of the function f(x, y) = xy - x2 - y2 - 3x - 3y + 12
    9·1 answer
  • Can someone help I’m not sure if I got this problem right
    6·1 answer
  • Will give brainliest!! please help me!!
    9·1 answer
  • Urgent! find the image of (3,-2) under translation vector T=(1,-5)​
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!