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
svet-max [94.6K]
3 years ago
8

Given the system of equations, what is the value of the system determinant? x + y = 8 x - y = 10 0 -1 -2

Mathematics
2 answers:
kkurt [141]3 years ago
8 0

Each X and Y in the equations don't have a number in front of them so they are all considered 1.

D = 1*(-1) - 1*(-1) = -1 -1 = -2

The answer is -2

Bond [772]3 years ago
5 0

Answer:

-2

Step-by-step explanation:

We need to set up the matrix to find the determinant

a  b

c  d

To find the determinant we take ad - bc

x + y = 8

x - y = 10

Take the coefficients of the x and y terms

1  1

1 -1

1 (-1) - (1) *1

-1 - 1

-2

You might be interested in
Alvin's age is two times Elga's age. The sum of their ages is 84 . What is Elga's age?
son4ous [18]
Alvin's age + Elga's age = 84
2R + R                             = 84 
3 R                                   = 84
3/ 3 R = 84/ 3 
R = 28 
Elga's age is 28 
6 0
2 years ago
5
uranmaximum [27]

Answer:

ok....let me try .....

  • ohhhh leave it. gu

<h2>..ok bro....sorry don't be angry <em><u>b</u></em><em><u>j</u></em><em><u>h</u></em><em><u>u</u></em><em><u>j</u></em><em><u>j</u></em></h2>
6 0
2 years ago
PLEASE PLEASE HELP PLEASE
kogti [31]

Answer:

r = 6

Step-by-step explanation:

Using Pythagoras' identity in the right triangle

PR² = PQ² + QR² , substitute values

(r + 4)² = r² + 8²

r² + 8r + 16 = r² + 64 ( subtract r² from both sides )

8r + 16 = 64 ( subtract 16 from both sides )

8r = 48 ( divide both sides by 8 )

r = 6

3 0
2 years ago
For each of the following vector fields F, decide whether it is conservative or not by computing curl F. Type in a potential fun
Burka [1]

Answer:

1,2 and 4 are conservatives

3 is not conservative

Step-by-step explanation:

We calculate  the Curl F

Remember that:

        Curl F = <\frac{dFz}{dy} - \frac{dFy}{dz}, \frac{dFz}{dx} - \frac{dFx}{dz}, \frac{dFy}{dx} - \frac{dFx}{dy}>

1. Curl F = <0,0,5-5> = <0,0,0>

  The potential function f so that  ∇f=F

  f(x,y,z) = -3x^{2} +5xy + 5y^{2}

  Then F is conservative

2. Curl F = < 0, 0 ,0>

  The potential function f so that  ∇f=F

  f(x,y,z) = -3/2x^{2} -y^{2}+z

  Then F is conservative

3. Curl F = <0 ,0, 10+3xsin(y) - (-cos(y))>

              = <0 ,0 , 10 +3xsin(y) + cos(y)<

 How the field's divergence is not zero the vector field is not conservative

4. Curl F = <0, 0, 0>  

  The potential function f so that  ∇f=F

  f(x,y,z) = x^{3}+(5/3)y^{3}+(5/3)z^{3}    

   Then F is conservative

5 0
3 years ago
Question 5 of 5
Allisa [31]

Answer:

I would say C not to sure tho

6 0
1 year ago
Other questions:
  • In a standard television set, the screen height is 0.75 times the screen width. If a television set measures 34 inches along the
    12·1 answer
  • How do you do this math question?
    9·1 answer
  • 6. A tank contains 100-gallon of pure water. At time t = 0, a solution containing 2 lb of salt per gallon flows into the tank at
    8·1 answer
  • Find the Quotient.<br>4,298 ÷ 4​
    5·2 answers
  • Help solving this question<br> 5x + yb = zmh
    10·1 answer
  • Which of the following is slope of the line that passes through the points (-1 , 10 ) and (5,2)
    6·1 answer
  • If line l is parallel to line m what is the measure of &lt;4?
    9·1 answer
  • On average, a human hair grows about 1.3 centimetres per month. At this rate, how long would a hair grow if it went uncut for tw
    6·2 answers
  • -5/8-(-4/3) <br><br> plz help I'm bad at fractions
    6·1 answer
  • Given: E is the midpoint of and ABCD is a rectangle.<br><br> Prove: △ABE≅△DCE.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!