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
umka2103 [35]
3 years ago
5

Simplify the following expression into the form a+bi where a and b are rational numbers

Mathematics
1 answer:
hoa [83]3 years ago
7 0

- 28 - 40i

note that i² = (√-1)² = - 1

expand product of factors using FOIL

= - 6 - 6i - 14i - 14i² - 20i + 36i²

= - 6 - 6i - 14i + 14 - 20i - 36

= - 28 - 40i


You might be interested in
Dave spent 21 minutes completing a race. He walked 9 minutes and jogged the rest. What
nasty-shy [4]
Dave jogged for 9 minuets and walked for 12 minuets
6 0
3 years ago
Alexus is ordering a large pizza for lunch. She has $15 dollars in all. A large pizza costs $9 and
exis [7]

Step-by-step explanation:

It would be

9+6 because 0.50 is a dollar so if u multiply by 6 and add the 9 the equation would be 9+6.......

don't forget get to rate me thx:)

4 0
3 years ago
Explain in 1-2 sentences how you identify
andrezito [222]

Answer:

You can tell because, as x increases/decreases, y increases/decreases at the same rate EACH TIME. This way, no matter how many times the proportions increase OR decrease, the ratio between x and y always stays the same.

8 0
3 years ago
Nichole collected data from the basil plant in her garden. She recorded the day (x) and how much the plant had grow (y) in centi
WARRIOR [948]

Answer:

The answer is B. Nichole's basil plant started at 1 cm and grew 3 cm each day.

The equation is y = 3x +1

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
The rational expression below is also equal to _____?<br>​
Dvinal [7]
The answer is 2 bc I got it right on a quiz
3 0
3 years ago
Other questions:
  • Noni is looking for the sum of a number, n, and 21.
    8·2 answers
  • How can I use a scale to help me find the actual perimeter of an object if I already know the perimeter of the scale drawing?
    5·1 answer
  • Which of the following describes the decimal equivalent of 5/9? terminating decimal repeating decimal non-terminating, non-repea
    15·1 answer
  • 7•7+3(4•4+3+2) what is the answer to this?????
    10·2 answers
  • How is long division of polynomials the same as long division of numbers? How is it different?
    13·2 answers
  • What is true about the dilation?
    11·1 answer
  • I want to know how to solve this cross number puzzle i know the answers but where do i put them​
    14·1 answer
  • Your city has a sales tax rate of 6%. If you just spent $30 on sales tax, how much were your purchases?
    13·1 answer
  • Please help! I will give Brainliest!
    5·1 answer
  • Evaluate \dfrac{3}{2}+(-k)+(-2)
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!