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
lukranit [14]
3 years ago
15

Why does -4i*i=4? what happens to the i when you multiply it

Mathematics
1 answer:
Alchen [17]3 years ago
8 0

▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ { \huge \mathfrak{Answer}}▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪ ▪

As we know that :

  • {i}^{2}  = i \times i =  - 1

so, over here

  • - 4i \times i

  • - 4 {i}^{2}

plugging the value of i² as -1

  • - 4   (- 1)

  • 4
You might be interested in
How to solve x^2+14x-15=0
goldfiish [28.3K]

Answer:

x² +14x-15=0

=>x²+15x-x-15=0

=> x(x +15)-1(x+15)=0

=> (x-1)(x+15)=0

=> x = 1 or,x=-15

8 0
3 years ago
Read 2 more answers
What is one of the main differences between a 401(k) and a Roth 401(k)
Dennis_Churaev [7]
The difference between a 401(k) and a Roth 401(k) is that 401(k) is the income taxes on distribution whereas the Roth 401(k) is the income taxes on contribution.
3 0
3 years ago
Read 2 more answers
Can someone please help me?
vekshin1
7.2 take 1.2 and multiply by 6
5 0
3 years ago
Read 2 more answers
Which diagram BEST represents the relationship among integers, rational numbers, and whole numbers?
Ronch [10]

Answer:

The correct option is;

A)

Step-by-step explanation:

By the representation of numbers in a figurative for, we have;

1) Th rational numbers that can be expressed in the form a/b, where a and b are real numbers

2) The integers are the direct subset of the set of rational numbers and are displayed in he next larger ellipse in the figure

3) The whole numbers are the direct subset of the set of integers.

8 0
3 years ago
2.5% of what is 2.21?
Varvara68 [4.7K]
 To get the answer do this: 

2.5% of what is 2.21

2.5%x = 2.21

2.5/100x = 2.21

0.025x = 2.21

divide both sides by 0.025

0.025x/0.025 = 2.21/0.025

x = 88.4
<span>


</span>
8 0
3 years ago
Read 2 more answers
Other questions:
  • What is another way to write to 72 – (–25)?
    9·2 answers
  • A Girl gets 2,000 gift toward a college education from her grandparents. How much will the 2,000 be worth in 17 years if it is i
    13·1 answer
  • I'd appreciate it if anyone could help me! :) I'll give Brainliest!
    11·1 answer
  • E(t) models the daily amount of energy (in kilojoules, kJ) that a solar panel in Pago Pago generates, t days
    8·1 answer
  • Find the median of 6,2,0,1,1,2,3,2,0,2,3,4,2,3,5
    8·2 answers
  • For 20 please help TT
    6·1 answer
  • How many 5/8 inch binder clips, laid side by side, make a length of 11 1/4 inches?
    8·2 answers
  • Write an equation of the line below.
    12·1 answer
  • 2 1/3 divied by 2/4 help qwq
    9·2 answers
  • How to sold infinite
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!