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
Aleks04 [339]
3 years ago
11

2x - 5y = 93x + 4y = 2​

Mathematics
1 answer:
AysviL [449]3 years ago
7 0
I am not really sure but x=1.84 and y=-1.064
You might be interested in
HELP ME PLEASE IM TIRED
Svet_ta [14]
Both lisa and ty have the same typing speed :)
5 0
3 years ago
Read 2 more answers
Paula's dog Toby, weighs 95 pounds to find Toby's weight in kilograms, what conversion factor should you use?
Anettt [7]
One pound is about 0.5, so pretty much divide it by half
7 0
3 years ago
If (3-4i) (x+iy) = 3 root 5<br> show that x^2 + y^2=9/5
NNADVOKAT [17]

Answer:

the answer is 2 + i.

Step-by-step explanation:

Let the square root of 3 + 4i be x + iy.

So (x + iy) (x +iy) = 3 +4i

=> x^2 + xyi + xyi + i^2*y^2 = 3 + 4i

=> x^2 – y^2 + 2xyi = 3 + 4i

Equate the real and complex terms

=> x^2 - y^2 = 3 and 2xy = 4

2xy = 4

=> xy = 2

=> x = 2/y

Substitute in

=> x^2 - y^2 = 3

=> 4/y^2 - y^2 = 3

=> 4 – y^4 = 3y^2

=> y^4 + 3y^2 – 4 = 0

=> y^4 + 4y^2 – y^2 – 4 =0

=> y^2(y^2 + 4) – 1(y^2 + 4) =0

=> (y^2 – 1) (y^2 + 4) =0

Therefore y^2 = 1, we ignore y^2 = -4 as it gives complex values of y.

Therefore y = 1 and x = 2/1 = 2

The required square root of 3 + 4i is 2 + i.

5 0
3 years ago
Please solve very urgent
Snezhnost [94]

Step-by-step explanation:

Can't see the picture very So can you updated

3 0
3 years ago
Read 2 more answers
Sasha does push-ups each day for five days. The numbers of push-ups she does each day or shown below.
lana [24]

The mean average of push ups Sasha does in 5 days is 26.2.

<h3>Mean average</h3>

  • Number of days = 5
  • Day 1 = 22 push ups
  • Day 2 = 36 push ups
  • Day 3 = 21 push ups
  • Day 4 = 25 push ups
  • Day 5 = 27 push ups

Mean average = Total push ups done / number of days

= (22 + 36 + 21 + 25 + 27) / 5

= 131 / 5

= 26.2

Therefore, the mean average of push ups Sasha does in 5 days is 26.2.

Learn more about mean average:

brainly.com/question/20118982

#SPJ1

3 0
2 years ago
Other questions:
  • Kenya is reserving a room in a hotel in France where they use euros (€). The room charge is €75. Suppose the conversion rate is
    14·2 answers
  • What number has 2 more tens than 40 and the same number of ones as 18?
    15·2 answers
  • Tom can paint a house in 10 hours. If Sally helps, it takes them 4 hours. Without help, how long would it take Sally to paint a
    5·1 answer
  • Factor completely: 4x2−100 .
    12·2 answers
  • Michelle draws a card from a standard deck of 52 cards. She replaces the card and draws a second card. What is the probability t
    15·2 answers
  • What word describes the equal shares of the shape
    7·1 answer
  • In London, half of the days have some rain. The weather forecaster is correct 2/3 of thetime, i.e., the probability that it rain
    13·2 answers
  • Everythings in the picture
    12·1 answer
  • Can someone plz help me!!!
    15·1 answer
  • What is the slope for Y = -3x +7
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!