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
klemol [59]
3 years ago
11

Please help. Simplify the expression using imaginary numbers. 2 √ -16 + √ -9

Mathematics
2 answers:
Elanso [62]3 years ago
6 0

Since, by definition, i^2=-1, we deduce that \sqrt{-1}=i

So, we have

2\sqrt{-16}+\sqrt{-9}=2\sqrt{-1\cdot 16}+\sqrt{-1\cdot 9}=2+\sqrt{-1}\sqrt{16}+\sqrt{-1}\sqrt{9}=2\cdot i\cdot 4+3i=8i+3i=11i

Flura [38]3 years ago
6 0

Answer:

11i

Step-by-step explanation:

These roots are imaginary, but let's make it so that i=the square root of -1. simplify the two roots to get 4i and 2i. Multiply the 4i by 2 to get 8i. add them together to get 11i

TL;DR

2x4i+3i

8i+3i

11i

You might be interested in
A random sample of students at North High School were polled on whether they prefer a 15-minute break between classes in the mor
bekas [8.4K]

This is late but, it's A. 21%

5 0
4 years ago
Read 2 more answers
What is the pattern as the exponents decrease of 8
FromTheMoon [43]

Answer:

x - 8

Step-by-step explanation:

If we called the exponents as 'x', it would be:

x - 8 because it decrease by 8

Hope this help you :3

8 0
4 years ago
Read 2 more answers
Lught herzu <br><img src="https://tex.z-dn.net/?f=%20%7Bx%7D%5E%20%7B2%7D%20%20-%20xy%20%2B%20%20%7Bx%7D%5E%7B2%7D%20%20%20-%20x
Andrej [43]

Answer:

sry I can't understand how to do this question

3 0
3 years ago
Read 2 more answers
The inequality 2 p ≤ 18 can be used to determine how many pounds of apples at $2.00 per pound, p, you can buy while spending $18
Irina-Kira [14]
So we know we don't want to exceed 18 dollars. 

So what we want to know is how many times can 2 dollars go into 18 dollars. 

We would do 18/2 = 9

Now the answer is 9, so we know we can buy 9 pounds of apples without going over 18 dollars.
6 0
3 years ago
Conner deposited $84 into his checking account. if his new Balance is $451, what was his balance before the deposit
likoan [24]

Answer:

$367 before the deposit

Step-by-step explanation:

451 - 84 = 367

5 0
3 years ago
Other questions:
  • This year the winner of the new york marathon ran the 8 kilometer event in 24 mins. What is the runners unit rate
    9·1 answer
  • Please help me with this
    7·1 answer
  • The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.
    5·1 answer
  • What is an equation of a line perpendicular to 5x+8y=16 and passed through (-5,7)
    10·1 answer
  • Raaela is a physical education teacher and has 25 girls and 35 boys in her class.
    5·1 answer
  • If two points known on the line A B in the coordinate plane is (7,15) and (18,42), calculate the slope of the line AB and the le
    14·1 answer
  • Find the circumference of a circle with diameter,
    10·2 answers
  • Hey, Its the same person. This is Algebra 2. Please Help!
    11·1 answer
  • Original Shirts Cost: $55
    5·1 answer
  • Y = x - 2<br> -2x + 3y = -1 <br> What is x and y?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!