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
arsen [322]
3 years ago
14

MULTIPLYING COMPLEX NUMBERS

Mathematics
1 answer:
Elenna [48]3 years ago
5 0

Answer:

(3 - 2i)(4 + 1)

=3(4 + 1 ) +(-2i)(4 + 1)

=3(4 + 1 ) -2i(4 + 1)

=12 + 3 -8i - 2i

= 15 - 10i

You might be interested in
The one who answers first will be marked as the brainliest...
Svet_ta [14]

Answer:

53 and 41

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
A service station checks Mr. Smith's radiator and finds it contains only 40% antifreeze. If the radiator holds 20 quarts and is
storchak [24]

Answer:

8 quarts

Step-by-step explanation:

<u>Step One: Figure out how much 40% is by making an equation:</u>

<em>Since we are looking for a percentage, we use cross multiplication to find X.</em>

\frac{x}{20} = \frac{40}{100}

<u>Step Two: multiply 20 by 40 to start cross multiplying:</u>

<em>20 times 40 is 800, so replace the 40 by 800 in the equation.</em>

\frac{x}{20} = \frac{800}{100}

<u>Step Three: divide 800 by 100, and we will have X:</u>

<em>800/100=8</em>

<em><u>X=8 aka 8 quarts</u></em>

I hope this helps!

pls give thx and brainliest :D

7 0
3 years ago
Angle is in standard position and (-5, -7) is a point on the terminal side of 0.
vfiekz [6]

Answer:

Step-by-step explanation:

Don't use 0 as a substitute for θ.  0 is always 0.

cosθ = -5/(2√15)

secθ = 1/cosθ = -2√15/5

4 0
3 years ago
PLS HELP!!
nadezda [96]

Answer:

Step-by-step explanation:

a = number of successful events

b = total number of events.

4 0
2 years ago
aqunt called geico and saved 15% on her car insurance. if he was playing $ 975 before, how much is he paying now?
STatiana [176]

Answer:

828.75

Step-by-step explanation:

If you input the 975 and take 15 percent away you would get 828.75

6 0
3 years ago
Read 2 more answers
Other questions:
  • If 100 dollars in one year gain 3 1/2 dollars interest, what sum will gain $38.50 cents in a year and a quarter
    12·2 answers
  • A quarter circle is attached to the side of a square that is 8 cm.
    12·1 answer
  • What is the equation of the graphed line written in standard form?
    12·1 answer
  • Find the distance between the points given.<br><br> (-3, 2) and (9, -3)<br><br> √(61)<br><br> √(37)
    13·1 answer
  • Combine the like terms to create an equivalent expression:<br><br> 2r+1+(−4r)+7
    6·1 answer
  • [super easy] i have to draw an ugly sweater based around the vocab term natural selection, any ideas?
    12·1 answer
  • A baby girl weighed 18 lb 10 oz at 11 months and 20 lb 2 oz at 12 months. How much weight did the baby gain during this month?
    15·1 answer
  • PLEASE HELP WITH GEOMETRY IM STUCK!?}
    15·2 answers
  • I really need help please!!!
    10·1 answer
  • Which of the following could be the side lengths of a right triangle?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!