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
EASY POINTS! (50)
umka2103 [35]

Answer:

1/2(7)(4) + 6(5) = 44

1/2*64+3(7) = 53

12(6)+14*4 = 128

You are welcome

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Lori is running in a marathon, which is 26.2 miles long. So far, she has run one-tenth of the marathon. How far has Lori run
Mila [183]

Answer:

lori has run 2.62 miles

Step-by-step explanation:

Do 26.2/10

4 0
2 years ago
In a jewelry store, rings makeup 5/9 of the inventory. Earrings make up 4/15 of the inventory. How many times greater is the rin
Free_Kalibri [48]
First let's make the denominators equal, so that we can compare the two fractions more easily.
To do this, we have to find a number that both 15 and 9 divide into. The smallest number that this can happen to is 45.

15 x 3 = 45
9 x 5 = 45

So we have to multiply 15 by 3 in order to make it into 45. If we're changing the denominator, the numerator must change too, by the same multiplier.

4 ---> 4 x 3 = 12
--
15 ---> 15 x 3 = 45

4/15 = 12/45


5 ---> 5 x 5 = 25
--
9 ---> 9 x 5 = 45

5/9 = 25/45

To find how many times more rings there are, we divide 25 by 12. As the result of this isn't an integer, we leave the answer as a fraction:

There rings inventory is 25/12 times bigger than the earrings inventory.
4 0
3 years ago
Suppose that you are given a decision situation with three possible states of nature: S1, S2, and S3. The prior probabilities ar
seropon [69]
The answer would be 1.0067
6 0
3 years ago
Write an equation of a line in point-slope and slope intercept form that passes through the point (1, -8) and is perpendicular t
prisoha [69]

Answer:

11y-2x= -90

Step-by-step explanation:

for the point (1,-8)

x=1 and y= -8

for the equation,

2x -4y= -11

x= -1/m

m= -1/x

x = -1/ (-11/2 )

m= 2/11

so for the equation,

y-y1= m(x- x1)

y- -8=2/11(x-1)

11(y+8)= 2(x-1)

11y +88= 2x-2

11y-2x= -90

3 0
3 years ago
Other questions:
  • PLEASE HELP [99 POINTS] ONE QUESTION
    8·2 answers
  • a consumer purchased a computer after a 15% price reduction. if x represents the computer's original price, the reduced price ca
    7·1 answer
  • What is the area of a triangle with a base of 8 yards and a height of 3 yards
    15·2 answers
  • A local community center built a rectangular basketball court using 100 feet of fence. They used part of one side of the buildin
    9·1 answer
  • The two points (1, 3) and (−2, 9) lie on a line. Which equation below does NOT represent the line?
    5·1 answer
  • Please help me understand this question! <br><br> Arc GJ = ___ degrees
    13·1 answer
  • A city’s population is currently 150,00. If the population doubles every 30 years, what will the population be 60 years from now
    8·2 answers
  • A store sells two kinds of candles,scented candles and unscented candles. The candles burn at different rates which kind of cand
    8·2 answers
  • Solve for n: <br> 4+ n/3 &lt;6
    13·1 answer
  • Help please whoever gets it correct gets brainliest!!!!
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!