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
AleksandrR [38]
4 years ago
13

7-4i divided by 2+i how to solve it?

Mathematics
1 answer:
cupoosta [38]4 years ago
8 0
\cfrac{7-4i}{2+i}\\\\ = \cfrac{(7-4i)(2-i)}{(2+i)(2-i)} \\\\ =\cfrac{14-7i-8i-4}{4+1} \\\\= \cfrac{10-15i}{5} \\\\= \cfrac{5(2-3i)}{5} \\\\=2-3i
You might be interested in
HELP ME PLEASE HURRY!!!!!!
sladkih [1.3K]

Answer:

C

Step-by-step explanation:

The minimum you can stay is 1 night, which would be 100 dollars. Since there's a fee, and can only stay 7 nights, the max number would be 900.

3 0
3 years ago
Which information is typically found on a map key?
Elodia [21]

Answer:

The Answer is (A)

Step-by-step explanation:

A sample of each symbol (point, line, or area), and a short description of what the symbol means

6 0
3 years ago
13 points!!! <br><br> 34ft 4in - 8=
vredina [299]
If feet:
34' 4" - 8' = 26' 4"

if inches: = 33' 8"

5 0
3 years ago
Read 2 more answers
Show the graph of -3x + 10
nekit [7.7K]

Answer:

7

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
(3m^3- 1/2 y) (3m^w - 1/2y)<br> multiply
Westkost [7]

Answer:

This is just multiplying not simplify.

4 0
3 years ago
Other questions:
  • What's 900 thousands in tens
    12·1 answer
  • Harriet needs to ship a small vase. The box she will use has a volume of 216 cubic inches. If the side lengths are all the same,
    14·1 answer
  • How many solutions exist for the given equation?
    13·1 answer
  • Andrew bought 7 bundles of drawing sheets that each cost the same amount of money. The tax on his purchase was $1. He spent a to
    5·1 answer
  • Solve the system of equations -4x+11=15 and x=2y
    8·1 answer
  • <img src="https://tex.z-dn.net/?f=If%20w%3D2x%2C%20then%20%5Cint%5Climits%5E2_0%20%7Bf%282x%29%7D%20%5C%2C%20dx%20%3D" id="TexFo
    6·1 answer
  • Please help i need this done soon
    8·1 answer
  • A set of equations is given below:
    5·1 answer
  • The food bank has 1774.4 oz of chicken.If 12.6 oz is 2 servings,how many servings of chicken does this provide?
    7·1 answer
  • Please help me :)<br> HIGGJFFJH
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!