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
Last month, a coral reef grew 9000 millimeters taller. How much did it grow in meters? Be sure to include the correct unit in yo
kondor19780726 [428]

I think it grow 9meters because when you convert millimeters to meters you divide by 1000

4 0
3 years ago
Distance between
Oxana [17]

Answer:

Step-by-step explanation:

distance PQ=√[(0-0)²+(2+11)²]=√13²=13

distance AB=√[(-3-0)²+(-4-0)²]=√(9+16)=√25=√5

distance CD=√[(0-8)²+(-6-0)²]=√(64+36)=√100=10

8 0
2 years ago
In 3-way light bulbs, the highest wattage is the sum of the two lower ones. If the lowest is 60 watts, and the highest 150 watts
otez555 [7]
Since 150= 60 +x
x=110
3 0
4 years ago
What does k equal to?<br> -38=-0.4k
Lemur [1.5K]

Answer:

k=95

i don't really know how to explain it! Just try matching the questions up yourself :)

multiply -.4*95 to see if the result is -38

I'm 99.99999999999% percent sure it is right

7 0
2 years ago
Faces of a three-dimensional figure are any of the __________________, including the bases.
tatiyna

Answer:

A prism is a three-dimensional figure with:

o at least two parallel, congruent faces called bases that are polygons.

o Named by its base

 Examples: triangular prism, rectangular prism

 A pyramid is a three-dimensional figure with:

o one base that is a polygon.

o Its other faces are triangles.

o Examples: triangular pyramid, square pyramid, rectangular pyramid

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Which is the better buy: a coat originally priced at $360 with a 20% discount or the same coat originally marked $290 with no di
    8·1 answer
  • What is the GCF of 72 and 36?
    7·2 answers
  • What are factors of 19,21,23,25
    13·1 answer
  • The line for which equation has negative slope?
    15·1 answer
  • Need help, please!!!!<br>A0.4<br>B-0.4<br>C2<br>D-2
    11·1 answer
  • Tell how to undo each operation and explain why it works
    11·1 answer
  • The coordinate of the midpoint of segment AB is (-4, 3). Find the coordinate of A if the coordinate of B is (0, 3). A = (-8, 3)
    12·2 answers
  • A Family purchased tickets to the movies in spent a total of $40.75. The family purchase five tickets there was a $.90 processi
    12·1 answer
  • Drag each shape to the correct category.
    9·1 answer
  • 5(b)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!