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
jasenka [17]
3 years ago
6

If any two rows of matrix are equal the determinent of the matrix is

Mathematics
1 answer:
dimaraw [331]3 years ago
4 0

Answer:

Then the determinant is 0.

Step-by-step explanation:

Determinant  of ( 1  2 )      =   1*2 - 2*1   = 0

                          ( 1  2 )

You might be interested in
en una balansa de platillos esta equilibrada, en uno de los platillos hay una piedra, una pesa de un noveno kilogramos y la otra
Komok [63]

Se escribe una equacion y se resolve.

Vamos a usar x para representar el peso de la piedra.

En en platillo que tiene la piedra, el peso total es: x + 1/9 + 2/3

En el otro platillo: 1/2 + 1/3

La balanza esta equilibrada por eso los pesos en los platillos son iguales.

x + 1/9 + 2/3 = 1/2 + 1/3

x + 2/18 + 12/18 = 9/18 + 6/18

x + 14/18 = 15/18

x = 1/18

Respuesta: La piedra pesa un octavo de kilogramo.

3 0
3 years ago
Read 2 more answers
A patio blueprint has a key that shows 1 inch is equal to 12 feet. If the owner wants the length to be 30 feet, how many inches
harkovskaia [24]

Answer:

18

hope it helps...

5 0
3 years ago
You are a contractor and charge $65 for a site visit plus an additional $15 per hour for each hour you spend working at the site
tatiyna

Answer:

54.6 hours

Step-by-step explanation:

65x2 is 130 130-950 is 820 then 820 divided by 15 is 54.6 therefore meaning you have to work 54.6 hours to get 950$ you can check this by doing 54.6x15+130, might not be exact because i rounded to the nearest tenth.

Hope this helps!

8 0
2 years ago
I need help solving the last 2 questions please
Alborosie
A. 7.5 pages per hour B. $2.66 for one page
4 0
3 years ago
Read 2 more answers
A line passes through the point (-2,7) and had a slope of -5
Annette [7]

Answer:

a = -1

Step-by-step explanation:

The general equation for a straight line is y = mx+c, where m is the gradient/ slope, so m = -5. The first thing we need to do is find c, which we do by plugging in the x and y values that we already know: y = 7 and x = -2

7 = -5*(-2) + c

7 = 10 + c

c = 7-10 = -3

Now, we have the general equation of y = -5x -3 and we can use this to find a.

We'll treat a as x and y will be equal to 2:

2 = -5a -3

5 = -5a (Divide both sides by 5)

-a = 1 (now by -1)

a = -1

7 0
3 years ago
Read 2 more answers
Other questions:
  • Mckenzie and Cara both tried to find the missing side of the right triangle. Is either of them correct? Explain your reasoning.
    11·1 answer
  • Plz help me out with this question
    15·1 answer
  • the area of a rectangle is 85 square feet. the length is 12 feet longer than the width. find the length and width of the wall
    7·1 answer
  • 4 less than the product of 2 and a number is 18 what is the equation?
    8·1 answer
  • I choose A for my answer.
    5·1 answer
  • Is 7.787887888… a rational number? PLEASE ANSWER ASAP!! WILL GIVE BRAINLIEST!!!!!
    15·2 answers
  • Need Help with this. 4(v+4)-7v
    5·2 answers
  • Sort the property that characterizes either a trapezoid or a kite.
    6·1 answer
  • A store pays a wholesale price of $12.00 for the hat. If they plan to make a 25% profit, what will the retail price of the hat b
    15·1 answer
  • Simplify<br> 23 + 4.8<br> Plz help
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!