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
frosja888 [35]
4 years ago
5

If x+y = 10and xy 21find 2(x² + y ² )​

Mathematics
1 answer:
Sati [7]4 years ago
7 0

Answer:

158

Step-by-step explanation:

2(x square + y square)

2 (X+y) square -2 xy

2(10) square -2(21)

2×100-42

200-42

=158

You might be interested in
Over the course of 4 days the price of stock at a corporation fell $28. What was the average change in stock price per day?
bezimeni [28]
7 is the average stock change
5 0
3 years ago
Help with the FIREWORKS question!
liubo4ka [24]
I think the answer is 0.25 seconds later
                                                                     Hope this helped
8 0
3 years ago
Which value is a solution of the equation 5-4x=-3?<br> A. 0<br> B. 2<br> C. -3<br> D. 1/4
Rashid [163]
B. 2 I hope that this helps.
5 0
3 years ago
Read 2 more answers
Five years ago, Chris opened a savings account that earned 1.4% simple interest every year. He opened his account with $850.00 a
Blababa [14]
If it is compounded annually, this will be 850(1.014)^5 which equals $911.19
3 0
3 years ago
The golden ratio or golden mean is represented as (1 + √5) : 2.
Serjik [45]
Since the golden ratio is approximately 1.618033989 which fits what you provided, then rounded to the nearest thousandth would be 1.618
3 0
4 years ago
Other questions:
  • Please hurry!!!<br><br> Find its volume.
    8·2 answers
  • In a study of government financial aid for college​ students, it becomes necessary to estimate the percentage of​ full-time coll
    5·1 answer
  • How many liters of gasoline are needed to fill a 13.2-gallon tank
    8·1 answer
  • A weather balloon is 529 meters above the ground. Two weather stations, A and B, monitor the balloon’s progress. Compare the mea
    14·2 answers
  • Is 3x+15=3(x+5) a infinite solution one solution or no solution
    6·2 answers
  • The segments shown below could form a triangle.
    13·2 answers
  • The fifth term of an AP is 25 and the fifteenth term is 75 .Find the 10th term
    15·2 answers
  • An insurance agent earns a base salary of $28,000, a commission of 2% of sales, and receives an additional fee of $9 for each sa
    12·2 answers
  • The ratio of boys to girls in Mr. Lee's Geography class is 3 to 5. If there are a total of 32 students in the class, how many of
    9·1 answer
  • An insurance company has written 100 policies for $75,000, 500 policies for $25,000, and 1000 policies for $10,000 for people of
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!