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
inysia [295]
3 years ago
6

What is the square root of -1?

Mathematics
1 answer:
Westkost [7]3 years ago
3 0

Answer:

\sqrt{i}

Step-by-step explanation:

i = -1

This is a complex number

in here we take -1 = i

You might be interested in
What is the solution for −40 = 10c? <br> A. c = 1 <br> B. C = -1 <br> C. c = -4 <br> D. c = 4
Aleks [24]

Answer:

C. c = -4

Step-by-step explanation:

you must get c by itself. you have to divide both sides by 10. this gets rid of the 10c and keeps both sides equal

-40/10 = c

c = -4

5 0
3 years ago
Evaluate 4(a2 + 2b) - 2b when a = 2 and b = –2
amid [387]
First you simply have to substitute 2 in replace of all the a's, and -2 in replace of all of the b's

4((2)2+2(-2))

Then you want to follow the order of operations, PEMDAS (Parantheses-Exponent-Multiplication-Division-Addition-Subtraction), and multiply within the parantheses.

4(4+(-4))

Next you will add within the parantheses (So add the 4 and -4 together)

4(0)

Lastly multiply

0

Your answer is 0

Hope this helps!
5 0
3 years ago
Read 2 more answers
Find the solution of this system of equations.
vagabundo [1.1K]
I'm going to use the substitution method.

4x + 4y = -16
-8x - 6y = -20

4x + 4y = -16
- 4x - 4x
--------------------------
4y = -4x - 16
------ ------ ------
4 4 4

y = -x - 4

-8x - 6(-x - 4) = -20
-8x + 6x + 24 = -20
-2x + 24 = -20
- 24 - 24
----------------------------
-2x = 44
------- -------
2 2

x = 22


4(22) + 4y = -16
88 + 4y = -16
- 88 - 88
------------------------
4y = -104
------ ---------
4 4

y = -26



The answer is (22, -26).



4 0
3 years ago
A forest ranger spots a fire from a 21-foot tower. The angle of depression from the tower to the fire is 12 degrees . To the nea
Finger [1]

Answer:

Step-by-step explanation:

98.8

7 0
3 years ago
There are 13 apples in a basket. 7 of these apples are green. The rest of them are red.
olga nikolaevna [1]

⃝⃝⃝  Hello there! ☆☆☆☆☆

There are 6 red apples.

We have 13 apples. 7 are green. The amount of red apples is found by:

13-7=6

:)

I hope this helps you!

GraceRosalia

6 0
2 years ago
Read 2 more answers
Other questions:
  • Can someone answer it thankyou:-) :-)
    8·1 answer
  • What is area of a park that is 100 yards square
    9·1 answer
  • Please what is the answer?
    11·1 answer
  • A biologist has determined that a particular osprey has a 70% chance of catching a fish on any given day. Carry out a simulation
    14·2 answers
  • An arithmetic sequence has a first term of 3 and a fifth term of 31 what is it’s second term
    9·2 answers
  • Name the property used in the equation. Then find the value of n. 18(2n)=18
    10·1 answer
  • Can someone tell me what I did wrong.
    15·2 answers
  • The LA Dodgers hit the most home runs in 2014. The number of home runs accounted for 6% of the entire major league baseball home
    15·1 answer
  • 138.867545518 to 4 decimal places.
    14·1 answer
  • What number is 5he same ratio to 64 as 5 is to 8
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!