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
aev [14]
3 years ago
13

Which of the following is a complex number? -7 2 + StartRoot 3 EndRoot 4 + 9i Pi

Mathematics
2 answers:
NemiM [27]3 years ago
8 0

Answer:

4 + 9i

Step-by-step explanation:

a complex number by definition must have a real and imaginary components

imaginary components are denoted by the letter i, where i = √(-1)

the only choice with a real and imaginary components is 4 + 9i

iris [78.8K]3 years ago
6 0

Answer:

C. 4+9i

Step-by-step explanation:

Edge 2020

You might be interested in
Clint spends 1/2 hour practicing trumpet, 3/4 hour doing tasks around the house, 1 1/2 hour doing homework, and 1/4 hour cleanin
AfilCa [17]
4:30 PM! Because you have to add up all the time he spent doing these activities which is 3 hours and what time is three hours before 7:30? The answer is 4:30! Hope this helps!
8 0
4 years ago
Read 2 more answers
Helpp pleaseeeeeeeeee​
LuckyWell [14K]
Interior alternate angles
4 0
2 years ago
The difference of a number t and 22
8_murik_8 [283]

Answer:

t - 22

Step-by-step explanation:

the difference means subtraction so t - 22 is your answer

8 0
3 years ago
Read 2 more answers
15=5-(c+7) solve the equation
sergij07 [2.7K]
The variable c is equal to 13
3 0
3 years ago
Deepika on her way to home saw some homeless person sleeping in the park in a winter night. she gave them her canvas area of 551
Romashka [77]
Total area of canvas used in the cunstruction of the tent = 551 - 1 = 550 meters square.
Area of a cone = πr(r + sqrt(h^2 + r^2))
22/7 * 7(7 + sqrt(h^2 + 7^2)) = 550
7 + sqrt(h^2 + 49) = 550/22 = 25
sqrt(h^2 + 49) = 25 - 7 = 18
h^2 + 49 = 18^2 = 324
h^2 = 324 - 49 = 275
h = sqrt(275) = 16.58

The volume of the tent is the volume of a cone with base radius of 7 meter and height of 16.58 meter.
Volume of a cone = 1/3 πr^2h
= 1/3 * 22/7 * 7^2 * 16.58 = 851.3 m^3
3 0
4 years ago
Other questions:
  • Which expression is equivalent to 12x − 8x + 3 and why?
    12·2 answers
  • For f(x)=2x+1 and g(x)=x^2-7, find (f/g)(x)
    14·2 answers
  • Solve the inequality 2x + 8 < 5x − 4.
    5·1 answer
  • Use fraction models to solve two and four sevenths plus three and two fourths equals blank
    11·1 answer
  • Stuart wants to find the value of 3 - 2
    9·1 answer
  • Write 8 and 1/3 % as a fraction in simplified form.
    12·1 answer
  • A sum of money is divided in the ratio 3:5:9.calculate the smallest share given the largest share is 108
    5·1 answer
  • Find three numbers between –0.55 and –0.54
    15·1 answer
  • Help help help help help help help​
    7·1 answer
  • (3y^3)^2 without exponents
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!