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
TEA [102]
4 years ago
14

X-y = 10 x^2-y^2 = 60 x^2+2xy+y^2=?

Mathematics
1 answer:
Darina [25.2K]4 years ago
8 0

 

\displaystyle\\x-y=\boxed{10}\\\\----------\\\\x^2-y^2 = 60\\\\(x-y)(x+y)=60\\\\10(x+y)=60\\\\x+y=\frac{60}{10}=\boxed{6}\\\\----------\\\\x^2+2xy+y^2=(x+y)^2=6^2=\boxed{\bf36}

You might be interested in
HELP WITH THESE SERIES OF QUESTIONS!!
Virty [35]
1. Simplified already
2. 5x^2 x (3x+5)
3. 3x^3 x (3x^4 +11)
5 0
3 years ago
What is the answer to 3 square rooted 56?
o-na [289]
22.449. hope this helps
7 0
3 years ago
Area of the following kite?
MakcuM [25]

Answer:

i think A=20

A=pq/2 =4·10/2 =20

Hope i helped

-lvr

6 0
4 years ago
Read 2 more answers
HELP!!!!! part A: Ms.Donaldson earns $18.80 per hour for the first 40 hours she works in a week. She earns 1 1/2 times that amou
Elena-2011 [213]

Answer: A. $907.10

B. $628.236

Step-by-step explanation:

For the first 40 hours, Ms.Donaldson will earn: = 40 × $18.80 = $752.0

We are informed that Ms.Donaldson worked 45.5 hours, this means that she worked an extra 5.5 hours. The amount paid for the extra hour will be:

= 5.5 × 1.5 × 18.8

= $155.10

The amount she earned will be:

= $752.0 + $155.10

= $907.10

B. A health incurrence payment of $34.55 was deducted from Ms.Donaldson's earnings for the week. Therefore, the amount she will have after the deduction will be:

= $907.10 - $34.55

= $872.55

After the incurrence deduction, payroll taxes equal to 28% of the balance were deducted. What was the amount that Ms.Donaldson received afterwards?

This will be:

= $872.55 - (28% × $872.55)

= $872.55 - (0.28 × $872.55)

= $872.55 - $244.314

= $628.236

7 0
3 years ago
Can somebody please help me! i’m failing!
Art [367]

Answer:  Side AB= -7/4

BC= 1/7 CD=-5/3 AD= 1/2 and neither

Step-by-step explanation:

none of those sides are parallel to each other because they dont have the same slope

6 0
3 years ago
Other questions:
  • 35 year old female. 5’8', 220 pounds. Calculate Adjusted Body Weight. (Round to the nearest tenth if applicable): ________
    7·1 answer
  • At the fundraiser, there were only 3 prices for books: $2. $5 and $10. There were 6 more $5 books sold than $10 books. There wer
    13·1 answer
  • The population of a city in 2005 was 18,000. By 2010, the city’s population had grown to 32,800. If the population growth follow
    15·1 answer
  • A rectangle has a length of 1.5 feet and width of 3inches. What is the area of a rectangle in square inches?what is the area in
    10·1 answer
  • How do you do two x to the second plus nine x minus five equal zero
    5·1 answer
  • The perimeter of a rectangle is 36 feet. Find the dimensions of the rectangle if the length is 4 feet longer than the width
    6·1 answer
  • Help with this please​
    13·2 answers
  • Apples are selling for $0.36 a pound. Charmaine spent $4.86 on apples. How many pounds of apples did Charmaine buy?
    14·1 answer
  • I NEED HELP FAST PLS
    8·1 answer
  • Can someone tell me the answer please
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!