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
Travka [436]
3 years ago
9

Find the sum of 10 + 5i and its complex conjugate. Write your answer in the form a + bi

Mathematics
1 answer:
gogolik [260]3 years ago
7 0

Answer:

20.

Given, complex number is 10+5i .

We need to find sum of the given complex number and its conjugate. The conjugate of 10+5i is 10-5i. Therefore, the sum will be 10+5i+10−5i=20.

You might be interested in
Maria and Katy each have a piece of string. When they put the two pieces of string together end to end, the total length is 84in
Serga [27]

Answer: the length of Maria's piece of string is 45 inches.

the length of Katy's piece of string is 39 inches

Step-by-step explanation:

Let x represent the length of Maria's piece of string.

Let y represent the length of Katy's piece of string.

When they put the two pieces of string together end to end, the total length is 84inches. This means that

x + y = 84 - - - - - - - - - - - -1

Maria's string is 6 inches longer than Katy's. This means that

x = y + 6

Substituting x = y + 6 into equation 1, it becomes

y + 6 + y = 84

2y + 6 = 84

2y = 84 - 6 = 78

y = 78/2 = 39

x = y + 6 = 39 + 6

x = 45

8 0
3 years ago
A coin is tossed, and a die is rolled. Find the probability of getting heads and then rolling a 6.
Colt1911 [192]

Answer:

1/2 and 1/6

Step-by-step explanation:

8 0
3 years ago
Please solve this quick.
Ivenika [448]

Should be JK

If not sorry

6 0
2 years ago
Type the correct answer in the box. Write your answer to one decimal place. A boy who is 1. 8 meters tall stands 1 meter away fr
alisha [4.7K]
1.5 meters tall the lampost
5 0
2 years ago
PLEASEEE HELP -7a + 2b
Y_Kistochka [10]

Answer:

There are no like terms.

so its -7a+2b

Step-by-step explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • A grocery store recently sold 15 cans of soup, 3 of which contain cream of mushroom soup. What is the experimental probability t
    11·1 answer
  • Brainest gets 100 do problem 1-12 show your work
    10·1 answer
  • 5 cakes cost £2.50 how much do 7 cakes cost?
    15·2 answers
  • Solve the equation. x/8 + 12= 16
    6·2 answers
  • A small business owner made $30,000 the first year he owned his store and made an additional 2 over the previous year in each su
    11·1 answer
  • Evaluate a/b for a = -6 and b = -2
    8·2 answers
  • Sandra and her friend went to the candy store. Each of the purchased a bag of jelly beans. Sandra’s bag weighed 1.25 pounds. Her
    12·1 answer
  • Which of the following is an advantage to using a table to help you solve a problem?
    5·2 answers
  • Halp ;-; A florist is using 36 flowers to make 4 identical arrangements. How many flowers will be in each arrangement?
    5·1 answer
  • a hardware store marks up the price of all tools it gets from the ware house by 18% and then puts them on sale for 20% off what
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!