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
Leno4ka [110]
3 years ago
8

What is the answer to (3-4i)(5+6i)

Mathematics
2 answers:
densk [106]3 years ago
4 0

Answer:

39 - 2i

Step-by-step explanation:

First, you need to FOIL the equation:

(3 - 4i)(5 + 6i) \\15 + 18i - 20i - 24i^2\\15 - 2i - 24(-1)\\15 - 2i + 24\\39 - 2i\\

Remember that i^2 equals -1.

Therefore, the answer to this question is 39 - 2i

<em>I hope this helps!!</em>

<em>- Kay :)</em>

gulaghasi [49]3 years ago
3 0
(3-4i)(5+6i)

15+18i-20i-24i^2

15+18i-20i+24=

39-2i
You might be interested in
What is the solution to 5(3-x)?
Anit [1.1K]
The answer is 15 - 5 x

Multiply 5 by 3 ( 15 )
Multiply 5 by -x ( -5x )

I hope this helps and please mark brainliest!
8 0
3 years ago
You can represent the measures of an angle and its complement as x° and (90 − x)°. Similarly, you can represent the measures of
Alekssandra [29.7K]

Answer:

180° - x = 5 · ( 90° - x )

180° - x = 450° - 5 x

5 x - x = 450° - 180°

4 x = 270°

x = 270° : 4

x = 67.5°

The measure of an angle is 67.5°.

Its complement angle: 22.5°.

Its supplement angle: 112.5°

112.5° = 5 x 22.5

Step-by-step explanation:

4 0
4 years ago
A rectangular garden measures 25 ft by 30 ft. Surrounding ( and bordering) the garden is a path 3ft wide. Find the area of the p
kumpel [21]

Answer:

250

Step-by-step explanation:

25*30/3=

3 0
4 years ago
The radius of a circle is 6 inches. What is the length of a 135-degree arc?
svp [43]
14.14 inches

Convert 135° into radians. 135*2pi/360=3pi/4.
6*3pi/4=18pi/4=9pi/2=14.14

Another viable method is to do 2pi*6*135/360=14.14
8 0
2 years ago
After deductions of $45 were withheld this week from Ed's weekly earnings on his part-time job, his take-home pay was $240. Ed h
maria [59]
9.50 285 divided by 30=9.50 9.50 per hour
5 0
3 years ago
Other questions:
  • Which transformation when performed together would carry graph a onto graph b choose all that apply
    15·2 answers
  • What is 9/20 divided by 4/15?
    12·1 answer
  • What is the value of a?
    5·1 answer
  • Simplify. (-2)^-3 <br><br> A) -8 <br><br> B) -1/8 <br><br> C) 1/8 <br><br> D) 8
    8·1 answer
  • How do you find an angle of a hexagon
    15·1 answer
  • What do numbers have a difference of 8
    7·1 answer
  • Can anyone please help!!!!!
    5·2 answers
  • Mr. Y gets paid $8.70 per hour. Yesterday he worked 6.5 hours. What will be his pay, assuming that he gets paid for exactly the
    5·1 answer
  • 16 divided by 5 as a decimal
    11·1 answer
  • 2x - 3v = - 19<br> 5x + 2v = - 19<br><br> Solve the system using elimination. The solution it (x,y)
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!