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
Shalnov [3]
3 years ago
13

If u=(3+2i) and v=(3-2i) what is uv?

Mathematics
2 answers:
Vika [28.1K]3 years ago
6 0

Answer:

13.

Step-by-step explanation:

uv = (3 + 2i)(3 - 2i)

=  9 - 6i + 6i - 4i^2         Note that i^2 = -1  so we have

9  -4 * -1

= 13.

notka56 [123]3 years ago
5 0

Answer:

13

Step-by-step explanation:

u=(3+2i)  v=(3-2i)

uv = (3+2i)(3-2i)

FOIL

first: 3*3 = 9

outer: -2i*3 = -6i

inner: 2i*3 = 6i

last = 2i*-2i = -4i^2 =-4 (-1) = 4

Add together

9-6i+6i +4 = 13

You might be interested in
A random survey of seventh and eighth grade students was conducted to find out how many hours are spent doing homework each nigh
sammy [17]
Eight graders is the answer
4 0
3 years ago
Pls help like plsss and thx
Mandarinka [93]
1.5 glad I could help!
8 0
3 years ago
Read 2 more answers
I need some help on this! i need my grade to go up
Kaylis [27]
3rd one I think tho it may not be accurate
4 0
2 years ago
Read 2 more answers
Find the sum 45+46+47+48+...+129+130
Leno4ka [110]
Use photo math to help you with this question
6 0
3 years ago
If the ratio of purple marbles to orange marbles is 3 to 8, how many orange marbles will I have if I have 48 purple marbles?
sveticcg [70]

Answer:

You will have 128 orange marbles

Step-by-step explanation:

Set this up as an equation

Variable x = number of orange marbles

3/8 = 48/x

Cross multiply

3 × x = 8 × 48

3x = 384

Divide both sides by 3 to isolate the variable

3x ÷ 3 = 384 ÷ 3

1x = 128

x = 128

128 orange marbles

Check work:

Substitute the variable x for the answer

3/8 = 48/128

Cross multiply

3 × 128 = 8 × 48

384 = 384

If the numbers equal, the answer is correct

6 0
3 years ago
Read 2 more answers
Other questions:
  • If 12 gallons cost $36. How much would 8 gallons cost?
    7·2 answers
  • Select the decimal that is equivalent to 41/90​
    9·2 answers
  • Jim earns $1,600 per month after taxes. He is working on his budget and has the first three categories finished. Housing $576 Fo
    8·1 answer
  • Which of the following sets shows all the numbers from the set {1,2,3,4} that are part of the solution to the inequality 7x + 6
    6·1 answer
  • I have 4 factors.three of my factors are1,2,and 6 what is my fourth factor
    8·1 answer
  • Which is the equation of the given line in slope-intercept form
    15·1 answer
  • Plz i REALLY need help. explain ur answer
    9·1 answer
  • Please anyone help me Several friends went out
    11·1 answer
  • This season, the probability that the Yankees will win a game is 0.48 and the probability that the Yankees will score 5 or more
    14·1 answer
  • What is the value of -7 + (-12) + 81? Pls help asap <br> A: -100<br> B: -76<br> C: 62<br> D: 86
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!