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
Cerrena [4.2K]
2 years ago
14

Identify the real and imaginary parts of the given number. Then identify whether the number belongs to each of the following set

s: real numbers, imaginary numbers, and complex numbers.
−9 + 9i
The real part of −9 + 9i is ____ and the imaginary part is ____.
The number −9 + 9i belongs to which of the following sets. Select all that apply.

A real numbers
B imaginary numbers
C complex numbers

See image.

Mathematics
1 answer:
IceJOKER [234]2 years ago
6 0

Answer:

-9 is real, 9i is imaginary, C

Step-by-step explanation:

-9 is real because you can literally draw nine things.

9i is imaginary because i is √-1 and square roots of negatives are imaginary.

It is complex because complex expressios are written as a+bi.

You might be interested in
Write 9 in scientific notation
nataly862011 [7]
The number 9 in scientific notation is 8•10^0
3 0
3 years ago
Mr. Anders was three times as old as Kate 5 years ago. Their total age now is 42 years. How old is Kate now?
katrin [286]
We can write this as two equations. Call Mr. Anders' age A and Kate's age K:
A-5=3(K-5)
A+K=42

Then solve for A in the second equation:
A=42-K

Substitute this into the first equation:
(42-K)-5=3(K-5)
-K+37=3K-15
52=4K
K=13
6 0
3 years ago
HELLLLLLP!!!!! PLEASE!!!!
blagie [28]

Answer: Slope: -1    Y-intercept: -4

Step-by-step explanation:

Slope formula:

m = \frac{y_{2} -y_{1} }{x_{2} -x_{1} }

m=\frac{-13 -(-6)}{9-2}= m=\frac{-13 + 6}{9-2}  

m=\frac{-7}{7\\}

m = -1

When you draw this on the graph, the y-intercept is -4.

y = -4

4 0
3 years ago
Read 2 more answers
Choose the pair of numbers that is not a solution to the given equation.
balandron [24]

Answer:

The pair (0,3) is not a solution to the equation

Step-by-step explanation:

This can be proved by simply replacing the x and y variables in the equation by the x and y values of the pair, and checking if the equation renders a true statement:

By replacing x and y with their values in the pair (0,3), that is x=0 and y=3, in the equation y = 5 - 2x  we get:

3 = 5 - 2 (0)

3 = 5 - 0

3 = 5

which is NOT a true statement.

On the other hand, the other two pairs (2,1) and (1,3) render true statements:

1 = 5 - 2 (2)

1 = 5 - 4

1 = 1

and

3 = 5 - 2 (1)

3 = 5 - 2

3 = 3

3 0
3 years ago
Solve this equation and explain the steps<br> 9-2x= 7x
Hunter-Best [27]

Answer:

x = 1

Step-by-step explanation:

Step 1: Write equation

9 - 2x = 7x

Step 2: Solve for <em>x</em>

<u>Add 2x on both sides:</u> 9 = 9x

<u>Divide both sides by 9:</u> x = 1

Step 3: Check

<em>Plug in x to verify it's a solution.</em>

9 - 2(1) = 7(1)

9 - 2 = 7

7 = 7

3 0
3 years ago
Other questions:
  • Maggie jogged 7/8 mile on monday and half of that on tuesday. How far did she run on tuesday?
    11·1 answer
  • There are two square roots of 25. what is there only one sneer for the radius of the button.
    7·2 answers
  • Mike's family wants to build a rectangular fenced backyard area for their dog. They have a 20-meter length of wire fence and fou
    7·1 answer
  • 17. Jake walks 3/10 mile each day for 8 days.<br> How far does Jake walk?
    9·2 answers
  • Additive inverse of - (-5)
    6·1 answer
  • Find m&lt;1<br> 33°<br> 28°<br> 42°<br> 47°
    11·1 answer
  • The list of all factors for 21 is 1, 3, 7, and 21.<br><br><br> True False
    7·1 answer
  • Kofi is going to school and i-95 in a sentence​
    11·1 answer
  • An 11-foot ladder is leaning against a wall as represented in the figure below.
    9·2 answers
  • The classroom has 20 students and
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!