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
balu736 [363]
4 years ago
3

Umbers Multiply and simplify the product. (8 – 5i)^2 Select the product.

Mathematics
1 answer:
Zepler [3.9K]4 years ago
8 0

Answer:

  39 -80i

Step-by-step explanation:

The binomial can be squared in the usual way. i² = -1 to simplify.

  (8 -5i)² = 8² -2·8·(5i) +(5i)² = (64 -25) -80i

  = 39 -80i

You might be interested in
Solve this equation:<br><br> 110 = 9x + 5y<br><br><br> Help please!!!❤️
Archy [21]

We can't find explicit values for x and y, since there is only one equation, but two variables.


The best we can do is solve for one variable with respect to the other:


Solve for x:


subtract 5y from both sides:


110-5y = 9x


divide both sides by 9:


\frac{110-5y}{9} = x


Solve for y:


subtract 9x from both sides:


110-9x = 5y


divide both sides by 5:


\frac{110-9x}{5} = y



5 0
3 years ago
Which of the following correctly expresses the number below in scientific notation? 0.00000765
Y_Kistochka [10]
Start with 7.65. Then count the zeros to the left of the decimal place.

Should be 7.65 * 10^-6
5 0
4 years ago
A box is pulled to the right with a force of 65 N at an angle of 58 degrees to the horizontal. The surface is frictionless. The
lianna [129]

Answer:

34 N.

Step-by-step explanation:

Net force in x direction = 65 cos 58

= 34 N.

4 0
3 years ago
Read 2 more answers
The higher price of a commodity is ¢565.00​
EastWind [94]

Answer:

There is no question to answer. This is simply just a statement. If you need help, feel free to put the question under this comment because I don't understand what anyone is supposed to be answering from this "question."

5 0
3 years ago
It took 7 hours to mow 4 lawns; at that rate, how many lawns could be mowed in 21 hours
yuradex [85]

Answer:

12

Step-by-step explanation:

7x3=21

3x4=12

boOM

Hope This Helps

<3

6 0
4 years ago
Read 2 more answers
Other questions:
  • Plz help me answer these two questions instantly and plz explain thx
    12·1 answer
  • 5d-3.3=7.2 what is d?
    8·2 answers
  • What can i do to promote Americanism and love of country?
    6·1 answer
  • Identify the rate of change and term 0<br>1. 3, 5, 7, 9, 11, 13, 15....​
    10·1 answer
  • A fair spinner has 9 equal sections: 2 red, 3 blue and 4 green.
    10·1 answer
  • Give four rational numbers betwee1by2 and 6 by 7
    6·2 answers
  • If the height of the box is 7 inches, what is the volume of the box?
    15·1 answer
  • Answer correctly!!!!
    14·1 answer
  • What is an equation in slope-intercept form for the line (-5, 2) and (5,-3)?​
    8·1 answer
  • <img src="https://tex.z-dn.net/?f=%20%5Crm%20%5Cint_%7B0%7D%5E%7B%20%20%5Cpi%20%7D%20%5Ccos%28%20%5Ccot%28x%29%20%20%20%20-%20%2
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!