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
Trava [24]
4 years ago
5

Please simplify 9/3-2i.

Mathematics
2 answers:
umka2103 [35]4 years ago
7 0
3-2i is as far as you can simplify
Mamont248 [21]4 years ago
3 0
I = sqrt -1

Multiply<span> by </span><span><span>3+<span>2i/</span></span><span>3+<span>2i

</span></span></span><span><span>combine: 9<span>(<span>3+<span>2i</span></span>)/</span></span><span><span>(<span>3<span><span>−2</span>i</span></span>)</span><span>(<span>3+<span>2i</span></span>)
</span></span></span>
foil: <span><span>9<span>(<span>3+<span>2i</span></span>)/</span></span><span><span><span><span>3⋅3</span>+<span>3<span>(<span>2i</span>)</span></span></span><span><span><span>−2</span>i</span>⋅3</span></span><span><span><span>−2</span>i</span><span>(<span>2i</span>)
</span></span></span></span>
simplify: <span><span>9<span>(<span>3+<span>2i</span></span>)/</span></span><span>9<span><span>−4</span><span>i^2
</span></span></span></span><span>               9<span>(<span>3+<span>2i</span></span>)/</span></span><span>9+<span>4
              </span></span>9<span>(<span>3+<span>2i</span></span>)/</span><span>13
</span><span><span>               27+<span>18i/</span></span>13
</span>Divide each term in the numerator by the denominator.

<span><span>27/13</span>+<span><span><span>18i/</span>13 = answer</span></span></span>
You might be interested in
Help me please please
Dimas [21]

Sorry i messed up at first i think it actually is 50.3

Step-by-step explanation:

5 0
2 years ago
A squirrel climbs up a tree. She starts at 0.5 feet up the tree, then climbs at a steady pace for 7.5 seconds. She ends 4 feet u
Xelga [282]

Given :

A squirrel climbs up a tree. She starts at 0.5 feet up the tree, then climbs at a steady pace for 7.5 seconds.

She ends 4 feet up the tree.

Solution :

Now, distance covered is :

d = 4 - 0.5 = 3.5 feet.

Time taken, t = 7.5 seconds.

Distance climbed per second is :

D =\dfrac{d}{t}\\\\D=\dfrac{3.5}{7.5}\\\\D = 0.467\ feet/s

Therefore, distance climber per second is 0.467 feet.

Hence, this is the required solution.

4 0
4 years ago
A car is 120 inches long. A truck is 75% longer than the car. How long is the truck?
Inga [223]

Answer:

I think the truck would be 210 inches long

4 0
3 years ago
A circle has a diameter of 10 cm. What is the best approximation of its area? Use 3.14 for pi.....you need radius not diameter i
makvit [3.9K]

Answer:

If it has a diameter of 10, divide it by 2 to get Radius (5) because Area = πr²

Then you do r * π *r which would be 78.5. so C is your answer.

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
6. What are the mean and the mode of the following set of data: 5, 12, 1, 5, 7
Firlakuza [10]
Mode is 5 and mean is 6:))
8 0
3 years ago
Read 2 more answers
Other questions:
  • N+4=-2 solve equation
    11·2 answers
  • Round 1576.2 to the nearest whole number
    6·1 answer
  • At Sally's Hair Salon there are three hair stylists. 28% of the hair cuts are done by Chris, 30% are done by Karine, and 42% are
    8·1 answer
  • The perimeter of a sand volleyball court is 52 meters. It is 8 meters wide. How long is it?
    14·1 answer
  • Kevin must choose a number between 61 and 107 that is a multiple of 5, 8, and 10. Write all the numbers that he could choose. If
    10·1 answer
  • ��2222 is the diameter of a circle. The coordinates are �(−2, −3) and �(−12, −5). At what coordinate is the center of the circle
    12·1 answer
  • Any one plz solve this i tried thousands time step by step​
    6·2 answers
  • Which graphed function is described by the given intervals? Increasing on (−∞, 0) Decreasing on (0, ∞)
    11·1 answer
  • What equation is used to find the vertex form of a parabola with the vertex (h, k)?
    7·2 answers
  • Find h.<br> 8 in.<br> h = [?] in.<br> 6 in.<br> PLEASE HELP MEEEEE
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!