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
Nat2105 [25]
3 years ago
11

Express $\frac{15 + 10i}{1 + 2i}$ in rectangular form.

Mathematics
1 answer:
gtnhenbr [62]3 years ago
6 0

\dfrac{15 + 10i}{1 + 2i}=\\\\\dfrac{(15 + 10i)(1-2i)}{(1 + 2i)(1-2i)}=\\\\\dfrac{15-30i+10i+20}{1+4}=\\\\\dfrac{35-20i}{5}=\\\\7-4i

You might be interested in
Who created Sports Illustrated?
IRISSAK [1]

Answer:

henry lucr did

please brainlist

8 0
3 years ago
Read 2 more answers
Whats the slope of (-8,-1) and (-6,-2)
STatiana [176]
Answer: -1/2 or -0.5.
Explanation: -2- -1, -6- -2= -0.5
5 0
3 years ago
If using the method of completing the square to solve the quadratic equation
lara [203]

Answer:

x² + 7x + 10 = 0

Subtract 10 from both sides

x² + 7x = -10

Use half the x coefficent (7/2) as the complete the square term

(x + 7/2)² = -10 + (7/2)²

   note: the number added to "complete the square" is (7/2)² = 49/4

(x + 7/2)² = -10 + 49/4

(x + 7/2)² = 9/4

Take the square root of both sides

x + 7/2 = ±3/2

Subtract 7/2 from both sides

x = -7/2 ± 3/2

x = {-5, -2}

6 0
3 years ago
Read 2 more answers
What was the approximate number of mobile cellular subscriptions per 100 people in Zimbabwe in 2003
AnnyKZ [126]
4 was the exact answer
6 0
3 years ago
Number 19 Plz help.
Viktor [21]

Answer:

The scaled side says 1.875 mi

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • What kind of construction is it??
    9·1 answer
  • The Bilbo Company plans to manufacture decals for children's lunchboxes. Each decal
    5·1 answer
  • The programmers at the Theater Channel need to select a live musical to introduce their new network. The five choices are Cabare
    6·1 answer
  • PART A: complete the two-way frequency table
    14·1 answer
  • Hello can you all answer these 2 questions
    13·1 answer
  • Helpppppp pleaseeeeeeeeeeee
    14·2 answers
  • NEED HELP ASAP!! Will give BRAINLY
    7·1 answer
  • What is the Radius of a circle with an area of 115
    10·1 answer
  • Can someone plzzz help ASAP
    9·1 answer
  • An avid traveler is investigating whether travel websites differ in their pricing. She chooses a random sample of 32 hotel rooms
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!