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
Sveta_85 [38]
3 years ago
8

Identify the graph of the equation. Then find 0 to the nearest degree. 2x² + 4xy + 4y2 = 0

Mathematics
1 answer:
sweet-ann [11.9K]3 years ago
3 0

Answer:

It is a type of conic section, but there is only one point .

This represent a single point (0, 0)  in the real plane.

This is a complex graph x = i*y  - y,   there are imaginary numbers.

Step-by-step explanation:

2 xx + 4xy +  4yy = 0

...xx + 2xy + y*y  + yy = 0

(x + y)^2  + yy = 0

if  x is a constant

then the cross sections would be parabolas in the zy-plane

... 2yy + 4xy  - 2xy  + xx = 0

(2yy + 4xy + 2xx -2xx) - 2xy + xx = 0

2(y + x)^2 - 2xx - 2xy + xx = 0

2(y + x)^2 - xx - 2xy  = 0

2(y + x)^2 - xx - 2xy  +yy  - yy = 0

...

(x + y)^2  + yy = 0

x = i*y  - y

if  x = r cos a

y = r sin a

cos a )^2  + cos a sina  + sin a)^2  +  sin a)^2 = 0

cos a sin a + sin a)^2 = -1

You might be interested in
Which is a correct reflection statement?
algol13

Answer:

d. reflect triangle abc across line ab

Step-by-step explanation:

8 0
3 years ago
Please show me how to solve this equation step by step!<br> 1/25(20-t)=4/25t-3/5
rjkz [21]

Remark

Multiply both sides of the equation by 25. Then you have an equation that you have already done probably.

Step One

Multiply both sides of the equation by 25

1 * (20 - t) = 4t - (3/5) * 25    Every part of the equation must be multiplied by 25

(20 - t) = 4t - 75/5                 3*25/5 = 75/5

20 - t = 4t - 15                       Add t to both sides

20 - t + t =4t + t  - 15             Combine like terms

20 = 5t - 15                            Add 15 to both sides

20 + 15 = 5t - 15 + 15             Combine like terms  

35 = 5t                                    Divide by 5

35/5 = 5t/5                             Switch sides

t = 7  Answer

5 0
2 years ago
Tonya runs 8 kilometers in 60 minutes.At this rate,how long it take her to run 2 kilometers
Setler79 [48]
15 Minutes

You have 8 km in an hour.

Divide all that by two and you'll have 4 km in 30 mins.

Then divide by two again to end up with 2 km in 15 mins.

You could alternatively divide by four from the beginning, but I find this easier.
8 0
3 years ago
Rewrite the equation below so that it does not have fractions.
lidiya [134]

Answer:

\frac{15}{20} x-2=\frac{8}{20}

Step-by-step explanation:

\frac{3}{4} x-2=\frac{2}{5}

3/4 and 2/5 have a common denominator which is twenty so you can rewrite the equation with just knowing that

\frac{3}{4} =\frac{15}{20}

\frac{2}{5} =\frac{8}{20}

\frac{15}{20} x-2=\frac{8}{20}

You can then multiply both sides by twenty to solve this equation.

Hope this helps.

4 0
2 years ago
Read 2 more answers
Serena Williams opened a savings account to deposit all her tennis winnings. She initially deposited $8000. After a year of mont
Radda [10]

Answer:

Step-by-step explanation:

Deposited amount 8000$

One year - 12 months

divide 8000 by 12

666.666666667

so one month

666.666666667

5 0
2 years ago
Other questions:
  • What are the first two steps for finding the magnitude of the resultant vector?
    12·2 answers
  • Please Help!!!! I Give Thanks!!!!
    10·1 answer
  • The points on the number line do represent additive inverses. 3 and −3 are a zero pair, and when added they equal zero. The two
    15·2 answers
  • PLEASE HELP I GIVE THANKS
    7·1 answer
  • I need to find both of the solutions to the equation 100+(n-2)^ = 149
    14·1 answer
  • Which statement is true about the points shown on the number line?
    13·2 answers
  • what is the cost of 8 books at $4 each? what is the cost of x books at $4 each? what is the cost of 5 books at $x each ?​
    7·1 answer
  • Does anyone know about this question I give brainless If you answer this correctly
    5·1 answer
  • The last question for my test help
    5·1 answer
  • 1. Find the volume of the rectangular prism
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!