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
zysi [14]
2 years ago
12

Perform the indicated operation & simplify. Express the answer as a complex number. ( 6 − 7 i ) ( − 8 + 3 i ) =___

Mathematics
1 answer:
slega [8]2 years ago
6 0

( 6 − 7 i ) ( − 8 + 3 i )

First FOIL:

( 6 − 7 i ) ( − 8 + 3 i )  = -48 + 18i + 56i -21i^2

Combine like terms

                                 = -48 + 74i -21i^2

Convert i^2 = -1

                                 = -48 + 74i -21(-1)

And simplify

                                 = -48 + 74i + 21

                                 = -27 + 74i

You might be interested in
I need help please and thank you
nignag [31]

Answer:

B. A square is a rectangle.

5 0
3 years ago
Solve −2(n+3)−4=8 . The solution is n= .
Anton [14]

Answer:

n= -9

Step-by-step explanation:

Simplifying

-2(n + 3) + -4 = 8

Reorder the terms:

-2(3 + n) + -4 = 8

(3 * -2 + n * -2) + -4 = 8

(-6 + -2n) + -4 = 8

Reorder the terms:

-6 + -4 + -2n = 8

Combine like terms: -6 + -4 = -10

-10 + -2n = 8

Solving

-10 + -2n = 8

Solving for variable 'n'.

Move all terms containing n to the left, all other terms to the right.

Add '10' to each side of the equation.

-10 + 10 + -2n = 8 + 10

Combine like terms: -10 + 10 = 0

0 + -2n = 8 + 10

-2n = 8 + 10

Combine like terms: 8 + 10 = 18

-2n = 18

Divide each side by '-2'.

n = -9

Simplifying

n = -9

3 0
3 years ago
A regular octagon rotates 360° about its center. How many times does the image of the octagon coincide with the preimage during
True [87]
Hello there!

The correct answer is D. 8.

Hope This Helps You!
Good Luck :)
4 0
3 years ago
Can anyone help me I did it I'm just checking :)
lukranit [14]

Answer:

<h2>x = 12</h2><h2 />

Step-by-step explanation:

2x + 5 = 3x - 7

5 + 7 = 3x - 2x

12 = x

8 0
2 years ago
Which two expressions are equivelent?!!<br><br>Please help me with it!!☺
arsen [322]
J

You get the same answer, you just start with (x + 3) in the second equation...

That moment when you realize you're dumb and the correct answer is F
3 0
3 years ago
Read 2 more answers
Other questions:
  • Find the radius of the circle if the center is at (1,2) and the point (-5,-6) lies on the circle
    12·2 answers
  • -2,-4,-14,-16 and -37 greastest from least​
    9·1 answer
  • E. SAS<br> f. SSS<br> g. HL<br> h.AA
    10·1 answer
  • How do you turn 3/7 to a decimal?
    7·2 answers
  • Help please I need this in less than 2 mins
    9·1 answer
  • Happy Earth Day. Have a wonderful Day! If you answer you must give me ten Earth day Activities to answer. Thank you!
    8·2 answers
  • Please help this one doesnt nee and explantion
    9·2 answers
  • Below are two different functions, f(x) and g(x). What can be determined about their y-intercepts? graph going through negative
    5·1 answer
  • An ostrich can run 25 miles in 40 minutes. How many minutes will it take the ostrich to run 40 miles if it runs at the same spee
    11·1 answer
  • Dwight Donovan, the president of Finch Enterprises, is considering two investment opportunities. Because of limited resources, h
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!