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
Rashid [163]
3 years ago
13

Find the value of k ​

Mathematics
1 answer:
Sholpan [36]3 years ago
4 0

9514 1404 393

Answer:

  k = -2

Step-by-step explanation:

The determinant can be formed by subtracting up-diagonal products from down-diagonal products:

  (x)(x+y)(y) +(y)(x)(x+y) +(x+y)(y)(x) -(x+y)^3 -x^3 -y^3

  = 3xy(x+y) -(x^3 +3x^2y +3xy^2 +y^3) -x^3 -y^3

  = -2(x^3 +y^3)

The value of k is -2.

You might be interested in
Which number replaces the box to make this a true number sentence?
valkas [14]

Answer:

C. 5

Step-by-step explanation:

first expression 5 × (9-3) = 30

second one 45 - 3x

to make it 30 = 30

x should be = 5

8 0
3 years ago
Question:
riadik2000 [5.3K]

Answer:

180

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
X+2y=8 in slope intercept form
jeka94
This question is super easy, all you need to do is isolate the y variable. When you want to isolate it, you have to get rid of other numbers by doing the opposite sign.
x+2y=8     Subtract the x.
2y=8-x      Divide by two.
y=4-1/2x
3 0
4 years ago
What is the solution to the inequality?<br><br> −4(x−6)≤−2x+6
Kipish [7]
-4(x-6) ≤ - 2x+6
-4x-24≤ -2x+6
+2x +2x
-2x-24≤+6
+24 +24
-2x ≤ 30
Divide both sides by -2
and you get....
x ≥ -15
You switch the inequality sign because you're dividing by a negative.
I hope all is well, and you pass! Good luck, rockstar! (:
3 0
3 years ago
WILL GIVE BRAINLIEST!!!
Valentin [98]

Answer:

A

Step-by-step explanation:

LOL

6 0
3 years ago
Other questions:
  • Solve each word problem using either method.
    7·2 answers
  • Points A, B, C, and D are collinear and positioned in that order. Find the length indicated 7) Find BC if BC = 2x + 4, AD = 28,
    11·1 answer
  • 5.1÷104 Need Rounded to the nearest tenth. Can't seem to figure it out.
    14·1 answer
  • jake reads for 20 minutes after school. he reads x more minutes after dinner. enter an equation that represents the total number
    13·1 answer
  • A corporation must appoint a​ president, chief executive officer​ (CEO), chief operating officer​ (COO), and chief financial off
    13·1 answer
  • WILL MARK BRAINLIEST
    12·1 answer
  • What is the distance between -45 and 65
    9·1 answer
  • Please help! I neeeeeeeeeeeeddddddddd HELP!
    15·2 answers
  • Directions: Solve each problem. Show how you found each answer.
    8·2 answers
  • Natalie is decorating the outside of a box in the shape of a right rectangular prism. The figure below shows a net for the box.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!