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
Feliz [49]
2 years ago
5

How can you rewrite the expression (8-5i)^2 in the form of a +bi

Mathematics
1 answer:
olchik [2.2K]2 years ago
3 0
\bf \textit{recall that }i^2=-1\\\\
-------------------------------\\\\
(8-5i)^2\implies (8-5i)(8-5i)\implies 64-40i-40i+(5i)^2
\\\\\\
64-80i+(5^2i^2)\implies 64-80i+(25\cdot -1)\implies 64-80i+(-25)
\\\\\\
64-80i-25\implies 39-80i
You might be interested in
Which statement regarding the diagram is true?
Nuetrik [128]

Find out the statement true regarding the diagram given in the question

Answer

the statement is true regarding the diagram is

m∠WXY + m∠YXZ = 180°

REASON

As shown in the diagram

∠WXY and ∠ YXZ  are supplementary angles.

Supplementary angle definition

 Two Angles are said to be Supplementary when there sum is equal to 180 °.

thus  we get

m∠WXY + m ∠YXZ = 180 °

Therefore the m∠WXY + m∠YXZ = 180° is the true statement.


 







 

8 0
3 years ago
Read 2 more answers
Solve the system linear equations, using Gaussian Elimination
otez555 [7]
Just look it up on the web that will help a lot
5 0
2 years ago
Will mark brainliest to best answer, i need it asap!!!!!!!!!!!!!
Paha777 [63]

Answer:

please mark me as brainlest

Step-by-step explanation:

B is the answers for the question

7 0
2 years ago
Read 2 more answers
Harry and Lisa Perry have agreed to pay for their granddaughter’s college education and need to know how much to set aside so an
Jobisdone [24]

Answer:

  $117,836.49

Step-by-step explanation:

We can't make heads or tails of your table, so we have used a financial calculator to determine the multiplier is about 4.713. The calculator maintains more significant digits than that, so gives the value to the penny as ...

  $117.836.49

_____

This value is about 4.71345951 × $25,000.

7 0
3 years ago
Since r is parallel to s,<br>determine the<br>measure x indicated<br>in the figure below​
Butoxors [25]

Answer:

x =s

Step-by-step explanation:

42 9 x 143 x r

3 0
2 years ago
Other questions:
  • Two fair dice are rolled. what is the probability that they sum to: even
    11·2 answers
  • Simplify 10:11 as a ratio
    14·2 answers
  • Could someone help me with this math problem?
    6·2 answers
  • Rewrite in Polar Form....<br> x^(2)+y^(2)-6y-8=0
    11·1 answer
  • The circular play area has a diameter of 16 feet. There is a walkway that surrounds the play area and is 3 feet wide. What is th
    14·1 answer
  • The equation y = 15x represents the total number of pages read in x days.
    6·3 answers
  • Average Weekly Earnings The average weeklyearnings in dollars for various industries are listedbelow. Find the percentile rank o
    13·1 answer
  • Which graph would represent x&lt;2 ??? please help me quick
    8·1 answer
  • Factor this polynomial completely x^2-10x+25
    14·2 answers
  • 5x + 5y = -5 when y = 1<br><br> solve for x in <br><br> 10 points .
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!