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
sveta [45]
3 years ago
10

Write (-2 − 2i) + (10 − 4i) as a complex number in standard form.

Mathematics
1 answer:
romanna [79]3 years ago
7 0

Answer:

8-6i

Step-by-step explanation:

complex number in standard form will be in the form of a+bi

(-2 − 2i) + (10 − 4i) , open parenthesis

-2- 2i +10 -4i, group like terms

-2+10 -2i -4i, combine like terms

8 - 6i

You might be interested in
At the game Spectators can buy a large popcorn (16 oz cup) for $1.12 or a small popcorn (12 oz cup) for $0.96 which Popcorn opti
shtirl [24]

The unit ratio is defined as the total cost divided by the number of oz.

So, the large popcorn has a unit cost of

\dfrac{1.12}{16}=0.07

meaning that 1oz of pop corn costs 7 cents.

Similarly, the small popcorn has a unit cost of

\dfrac{0.96}{12}=0.08

meaning that 1oz of pop corn costs 8 cents.

So, the large popcorn has a lower unit rate.

8 0
4 years ago
Shelly has a roll of fabric and decides to make some scarves for her friend the roll contains 6 2/3 yards of fabric she needs 5/
ivann1987 [24]

Answer:

8

Step-by-step explanation:

Total length of the fabric is 6\dfrac{2}{3}=\dfrac{20}{3}\ \text{yards}

We need to find the number of scarves can she make if she needs 5/6 of a yard for each scarf.

Let she needs x scarves. So, ATQ

x\times \dfrac{5}{6}=\dfrac{20}{3}\\\\x=\dfrac{20}{3}\cdot\dfrac{6}{5}\\\\x=8

Hence, she can make 8 scarves.

8 0
3 years ago
Help PLEASE!!! Math Final. ASAP!!!!!!!!!!!!
Ostrovityanka [42]
The volume for the cube is 245 inches, I’m not sure about the other one though.
7 0
3 years ago
12w + 40 /3 = -6<br><br> What is the value of 'w'?
Lisa [10]
12w + 13¹/₃ = -6
<u>         - 13¹/₃   - 13¹/₃
</u>            <u>12w</u> = <u>-19¹/₃
</u>             12        12<u>
</u>                w = -1¹¹/₁₈
3 0
3 years ago
Help please just write the ratio like #1 300: ?
ruslelena [56]
1) 300:1500 = 1:5
2) 25:31
3) 9:21 = 3:7
4) 5:21
5) 5:13
6) 15:14
6 0
3 years ago
Other questions:
  • If you invest $3,900 at a 7.83% simple annual interest rate, approximately how long will it take for you to have a total of $10,
    9·2 answers
  • Can someone please explain this to me? Thank you so much! (#18, H.O.T problems)
    14·1 answer
  • On a coordinate plane, a parabola opens up. Solid circles appear on the parabola at (negative 6, 6), (negative 4.5, 2.25), (nega
    10·2 answers
  • Convert 10/9into a mixed number
    7·1 answer
  • Can someone help me with 3-6 please i’ll give you an extra 40 points
    13·1 answer
  • Find each sum or difference -1/2+1/3 please help quickly
    9·1 answer
  • In the right triangle shown, find x.
    13·1 answer
  • Can someone please help.!
    10·2 answers
  • These ratios are equivalent: 3 days to 4 hours, and 9 days to 12 hours. True or false?
    5·1 answer
  • Lightning strikes Earth 1000 times in 10 seconds. How many times does lightning strike
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!