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
pav-90 [236]
4 years ago
11

If a square has a length of 3x-y, what is its area?

Mathematics
1 answer:
SVEN [57.7K]4 years ago
7 0

Answer:

  9x² -6xy +y²

Step-by-step explanation:

The square of the binomial can be written directly using the relationship ...

  (a +b)² = a² +2ab +b²

where you have a=3x and b=-y.

  area = (3x -y)² = (3x)² + 2(3x)(-y) + (-y)²

  area = 9x² -6xy +y²

You might be interested in
There are 25 players in a ping-pong tournament. Each player plays every other player exactly once. How many games will be played
Aleonysh [2.5K]
This is a round robin style tournament. Given that there are 25 people, and order doesn't matter meaning that the combination AB is equivalent to BA you must use the choose formula. 

Thus the answer should be 25C2 or
<em>25! / [(25-2)! * 2!] = 300</em>
4 0
3 years ago
Which expression can be used to find the area of the rectangle shown on the coordinate plane?
Nimfa-mama [501]

Answer:

7X8

Step-by-step explanation:

There is 7 spaces along one side and 8 along the other, area=l x w (length multiplied by width)

7 0
3 years ago
Read 2 more answers
2.75j + 2.25 - 1.5j + 3 simplified
sergiy2304 [10]
You can say 2.75j - 1.5j = 1.25j and 2.25+3 = 5.25 so now you have : 
1.25j + 5.25 and thats simplify :)))
i hope this is helpful 
have a nice day 
4 0
4 years ago
Read 2 more answers
In one of its Spring catalogs, L.L. Bean® advertised footwear on 28 of its 192 catalog pages. Suppose we randomly survey 20 page
vichka [17]
100 easy os it correct
8 0
3 years ago
Find the dot product of u and v.<br> u=(7,15)<br> v = (-5,2)
nignag [31]

Answer:

A.... -5

Step-by-step explanation:

<u><em>-35 + 30 = -5</em></u>

5 0
3 years ago
Other questions:
  • What’s the correct answer for this?
    5·1 answer
  • Write (2 − 3i) − (-2 − 3i) as a complex number in standard form
    9·1 answer
  • Marcus solved for x in the quadratic equation x2 – 10x + 25 = 0. x = x = x = What is true about Marcus’s work? Check all that ap
    10·2 answers
  • If there are 1200 calories in 8 ounces of hot fudge how many calories are in 3 ounces of hot fudge??
    13·1 answer
  • If t=0 1980 find the value for t in 1990
    7·1 answer
  • Evaluate -4w-3z when w= 5.6 and z = -2.9
    12·1 answer
  • PLS HELP ME AM SO STUCK ON THIS
    7·1 answer
  • Which value of x from the set { 8 , 11 , 61 , 67 } makes the equation ( x − 3 )² = 64 true?
    14·1 answer
  • Match each equation to a step that will help solve the equation.
    5·2 answers
  • Can you help me solve it​
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!