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
natali 33 [55]
3 years ago
8

Find the value of x²+y² if x+y=9 xy=14​

Mathematics
1 answer:
vekshin13 years ago
8 0

Step-by-step explanation:

It's a system of equations.

From the first one we isolate x:

x = 9-y

And we substitute in the second one:

(9-y)y = 14

-y^2 + 9y - 14 = 0

y^2 - 9y + 14 = 0

D = 25

y1/2 = (9 +- 5)/2 = 2 or 7

y = 2 => x = 7

y = 7 => x = 2

x^2 + y^2 = 7^2 + 2^2 = 53

You might be interested in
The store has 28 notebooks in packs of 4. Three packs of notebooks are sold. How many packs of notebooks are left?
loris [4]
28 divided by 4= 7
7-3=4

answer: 4 notebooks left.
6 0
3 years ago
Read 2 more answers
Anybody know this question?
sattari [20]
The answer would be C. Mike can drive at the most 500 miles.
$200 - the rent for the week ($125)= $75
$75/($.15) the money per mile
500 miles.
Hope This Helps!
~Cupkake
3 0
3 years ago
Principal = $47,300 Rate = 3% Time = 4 months What will the total payment plus interest be?
motikmotik

Answer:

Simple Interest (I) =  Principle * Rate * Time

 

so I = PRT

 

P = $47300

R = 3% = 0.03

T = 4months = 0.33years

 

so

Assuming its per year after 4month

 

I = (47300)(0.03)(0.333333)

 

I = 472.999527

 

I = $473

 

Now we'd add the interest(I) to the Principle

 

$47300 + $473 = $47773.00

 

 

Assuming it is per month, after 4months

 

I = PRT

 

I = (47300)(0.03)(4)

 

I = $5676.00

 

Now add the interest to the principle

 

$47300 + $5676 = $52976.00

Step-by-step explanation:

there you go hope this help

3 0
3 years ago
Anthony purchased a T-shirt for $14.95 and a pair of pants for $21.35.
Mashutka [201]

Answer:

Anthony gave the sales clerk $40

Step-by-step explanation:

7 0
3 years ago
If 50x = 500 then
harina [27]
Answer is OD. Equals 10
3 0
3 years ago
Read 2 more answers
Other questions:
  • PLZZZZZ NEED HELP!!!!!!!
    9·1 answer
  • 4more then the difference of 2 and z​
    9·1 answer
  • PLEASE HELP, GIVING 25 POINTS!!!!<br><br> Fill in the blank.<br> (5x)^2 = ___ x^2
    9·1 answer
  • (25 Points) You develop an app to help students complete their homework. To earn money, you sell advertising space on the app’s
    13·1 answer
  • What are the multiples of 7 up to 35
    6·1 answer
  • What is 45.385 rounded to the nearest hundredth
    6·2 answers
  • Examine the system of equations.
    7·2 answers
  • According to a survey, 60% of adults believe that all college stu- dents should be required to perform a specified number of hou
    6·1 answer
  • 25% of the students of the student in the class ride the bus to school. If 10 students walk, how many total students are in the
    15·1 answer
  • "Yo no sé cuál fue la razón<br> Si yo te estaba dando todo mi amor."
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!