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
Sonbull [250]
3 years ago
12

What is the multiplicative identity of the complex number 4 + 8i

Mathematics
1 answer:
atroni [7]3 years ago
5 0

Answer:

1

Step-by-step explanation:

when you multiply an complex number by its multiplicatuive identity, in case 4+8i, you would multiply both the top and the bottom by 4-8i which is actually the value one since we cannot actually change the whole value of the number. By multiplying it by 1 and we get the same value without the imaginary number

(sorry if this doesn't make sense but I hope it helps)

about that did you forget to put -4 + 8i just to make sure about it because I am not sure if you forget it or not just making sure

You might be interested in
WILL GIVE BRAINLIEST IF CORRECT, IF WRONG NO BRAINLIEST Which statement accurately explains whether a reflection over the x-axis
Paladinen [302]

9514 1404 393

Answer:

  No, A″C″B″ is located at A″(1, 1), C″(4, 3), and B″(1, 5)

Step-by-step explanation:

Line AB is horizontal, so reflection across the x-axis maps it to a horizontal line. Then rotation CCW by 90° maps it to a vertical line. The composition of transformations cannot map the figure to itself.

A reasonable explanation is the last one:

  No, A″C″B″ is located at A″(1, 1), C″(4, 3), and B″(1, 5)

5 0
3 years ago
A rectangle has a perimeter of 18 cm.its length is 5 cm greater than its width.find the dimensions.
Marat540 [252]
P=18
l=5 cm greater than the width
w=5 less than the length

USE YOUR NUMBER SENSE!!! - just plug in different number below 4 to figure out the width

3=w  3+5=8 8+8=16+6=22    WILL NOT WORK

2=w   2+5=7  7+7=14   14+2+2= 18    WE HAVE A WINNER!!!!

FInal Answer: width: 2 cm and length: 7 cm
                          


5 0
3 years ago
If the area of the rectangle is 130 square inches then what is the rectangles height, h
fomenos

Answer:

130/l in where l is the length of the rectangle

Step-by-step explanation:

The formula for area of a rectangle is length by width where the width is the height of the rectangle

Given that area=130 in²

Lets assume the length of this rectangle is =l inches

Then ;

A=l*w

130 =l*w

130/l = w

130/l in = height

5 0
3 years ago
Half of number q is 4
Anastaziya [24]

1/2 (1q) = 4

insert extra text here

8 0
2 years ago
The probability that a comic book reader in a particular city prefers comics published by Company A is 25%. The probability that
Andrew [12]
We know that 70% of all comic book fans are male, and that 40% of Company A fans are male. 

Since 25% of all comic book fans are company A fans: 
0.4 * 0.25 (meaning 40% of 25%) = 0.1, or 10% of all comic book fans are male company A fans. 

What percentage, then, of male comic book fans are company A fans?
0.1 ÷ 0.7 = 0.142
We divide 10%, the percentage of all comic book fans that are male and company A fans, by the percentage of comic book fans that are male, since we are given that the fan is male. 

Answer is 0.14
6 0
3 years ago
Read 2 more answers
Other questions:
  • A formula is expressed as D= a(2+kt). Express k in terms of D,a, and t.
    7·1 answer
  • Solve the equation -3(y-5)=24
    15·2 answers
  • What is the equation of a line that passes through points (0, 4) and (-4,-8)?​
    9·2 answers
  • Can someone help me please
    5·2 answers
  • Find the standard form of the equation of the parabola with a vertex at the origin and a focus at (0, 9).
    13·1 answer
  • camila is working two summer jobs,making $10 per hour lifeguarding and $6 per hour walking dogs. Camila worked 5 more hours life
    10·1 answer
  • The 12th term of a sequence is 84. The common ratio is 4. What is the 11th term?
    13·1 answer
  • Unit 5: Given the coordinates of the vertices of a quadrilateral, determine whether it is a square, a rectangle, or a
    15·1 answer
  • The Frosty Ice-Cream Shop sells sundaes for $3 and banana splits for $5. Yesterday the amount of banana splits sold was 14 less
    8·1 answer
  • Write in slope intercept form. 2x + y = 2
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!