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
sweet-ann [11.9K]
3 years ago
15

Which choice is equivalent to the expression below? square root of negative 20​

Mathematics
2 answers:
morpeh [17]3 years ago
7 0

Answer:

B

Step-by-step explanation:

The expression can be written as

\sqrt{-20}

The - can be taken out from under the radicand and a 2 can be factored out of the expression to leave you with the expression

2i\sqrt{5}

Zina [86]3 years ago
5 0

Answer:

Correct option is:

B

Step-by-step explanation:

We have to find a expression which is similar to:

\sqrt{-20}

Now we start solving

\sqrt{-20} could also be written as:

\sqrt{-2\times 2\times 5}

When we take - sign out of the square root it becomes i

i.e. \sqrt{-1}=i

And there are two 2's inside the square root when we take square root it becomes 2

Hence, \sqrt{-20}=2i\sqrt{5}

Hence, Correct option is:

B

You might be interested in
Which undefined term can contain parallel lines? line plane point ray
Snowcat [4.5K]

Answer:

A <em>plane</em> is a two-dimensional surface that can contain points, rays, and lines, including parallel lines.

6 0
3 years ago
Read 2 more answers
Find the value of X and Y for all three questions. Show your work. Will give brainliest!
vodka [1.7K]

Answer:

(13)

<u>x= 8</u>

<u>y=11</u>

(14)

<u>x= 20</u>

<u>y=20.75</u>

(15)

<u>x=9</u>

<u>y=13</u>

Step-by-step explanation:

(13) 8x-1 = 11x -25

24=3x

<u>x= 8</u>

8(8)-1 +15y-48= 180

15y=165

<u>y=11</u>

(14) 7x-44 + 4x + 4= 180

11x= 220

<u>x= 20</u>

4(20)+4+39= 8y-43

123=8y-43

166=8y

<u>y=20.75</u>

(15) 12x+1=15x-26

3x=27

<u>x=9</u>

28+15(9)-26+4y-9=180

4y=52

<u>y=13</u>

3 0
3 years ago
Read 2 more answers
I need help making a proof for geometry! Here is the question I really need help on this question my marking period ends soon!
Anni [7]

Answer:

Step-by-step explanation:

7 0
2 years ago
Help Plss <br>Linear equation is also called​
vladimir2022 [97]

Answer:

degree equation

Step-by-step explanation:

I hope this helped you!

6 0
3 years ago
Read 2 more answers
The coordinates of quadrilateral PQRS are P(0, 0), Q(a + c, 0), R(2a + c, b), and S(a, b). How can you use coordinate geometry t
Flauer [41]
We will use the formula for the slope:
m = ( y2- y1 ) / ( x2 - x1 )
For PQ : m = ( 0 - 0 ) / ( a + c - 0 ) = 0
For RS : m = ( b - b ) / ( a - ( 2a + c )) = 0
Both slopes are m = 0, so PQ and RS are parallel to x - axis and at the same time parallel to each other ( PQ | | RS ). One pair of opposite sides is parallel.
8 0
3 years ago
Read 2 more answers
Other questions:
  • 17. What are the minimum, first quartile, median, third quartile, and maximum of the data set? 40, 7, 2, 35, 12, 23, 18, 28
    7·1 answer
  • Describe the end behavior of polynomial graphs with odd and even degrees. Talk about positive and negative leading coefficients.
    8·2 answers
  • The area of a triangle is 33.6 square inches. If the height of the triangle is 4 inches, what is the length of the base?
    14·1 answer
  • consider the following graph of a linear function which equations have the same slope as the graph above select all that apply
    14·1 answer
  •  
    15·1 answer
  • A photo is provided for this question
    13·1 answer
  • Gordon is 5 years older then Krutika. David is 6 years younger than krutika if the total of their age is 86 how old is the eldes
    5·1 answer
  • X= 4 , y = 5 , y’ = 6 . What’s x’ = ?
    9·1 answer
  • Y = 100 - 8.9x percent
    15·1 answer
  • 7, 11, 2, 18, -7, __ find the missing pattern.
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!