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
Sidana [21]
3 years ago
6

Show all work to multiply (2+√-25)(4-√-100)

Mathematics
1 answer:
ki77a [65]3 years ago
7 0

Answer:

<h3>-42</h3>

Step-by-step explanation:

given the expression;

(2+√-25)(4-√-100)

Note that √-25 = √-1 * √25

√-100 = √-1 * √100

According to complex number,  √-1 = i

√-25 = 5i

√-100 = 10i

The expression becomes

(2+5i)(4-10i)

Open the parentehsis;

= 2(4)-20i+20i-50i²

=  8-50i²

Since i² = -1

The expression becomes;

8-50i² = 8-50(-1)²

8-50i² = 8-50 = -42

Hence the product of the expression is -42

You might be interested in
What is 2x84 I don’t know the answer to it
lara [203]

Answer:

168

Step-by-step explanation:

2x80 is 160 plus 2x4 is 8 160+8 is 168

8 0
2 years ago
Read 2 more answers
Evaluate<br> 5! 4!<br> ____<br> 7! 2!<br> Simple as much as possible
shepuryov [24]

The value of the factorial is 5!4!/7!2! = 2/7

<h3>What is factorial?</h3>

The product of all positive integers less than or equal to a given positive integer and denoted by that integer and an exclamation point.

Given:

5!4!/7!2!

= 5!* 4*3*2!/7*6*5!*2!

=4*3/7*6

=12/42

=4/14

=2/7

Hence, 5!4!/7!2! = 2/7.

Learn more about factorial here:

brainly.com/question/1357774

#SPJ1

8 0
2 years ago
If the sin 60 degrees is 3/2, then the cos ______ degrees = ______.
PSYCHO15rus [73]

Answer: If the sin 60 degrees is 3/2, then the cost is 22 degrees and equals a bunch of like 88 degrees

Step-by-step explanation:

7 0
3 years ago
Tim simplified the difference 1/2p-(1/4p-4) as 3/4p. Did he find the correct answer will give brainlest for first person to answ
Ivanshal [37]

Answer:

I don't think so.

Step-by-step explanation:

1/2p-(1/4p-4)

1/2p-(1-16p/4p)

(2p-1+16p)/4p

(18p-1)/4p

2(9p-1)/4p

9p-1/2p

5 0
2 years ago
A staffing agency for in-home nurses and support staff places necessary personnel at locations on a daily basis. Each placed nur
shutvik [7]
You answer would be C I hope this helps........
6 0
2 years ago
Other questions:
  • Write an equation of the line with the slope of -7 going through the point (6,-7)
    13·1 answer
  • Can someone help me with all off theses plsss
    8·2 answers
  • Help for last one please
    13·1 answer
  • Marco located the falllow points on a number line which point is not corrtly placed on the number line
    9·1 answer
  • 5. In the figure Find X (In the picture) (giving points to best answer/brainlest)​
    13·1 answer
  • Everyone if you can help that would be great
    14·1 answer
  • Someone help me pls
    11·2 answers
  • Jake noted that speed of light is approximately 1.1 x 10^9 km/h; the speed of sound is approximately 1.2 x 103 km/h; and 11 + 12
    9·1 answer
  • Select the correct answer.<br> Simplify the following expression.
    9·1 answer
  • 1. The figure shows the regular triangular pyramid SABC. The base of the pyramid has an edge AB = 6 cm and the side wall has an
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!