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
marysya [2.9K]
3 years ago
13

C) The determinant of 2 x 2 matrix A is 3. If you switch the rows and multiply the first row by 6 and the second row by 2, expla

in how to find determinant and provide the answer
Mathematics
1 answer:
crimeas [40]3 years ago
7 0

Answer:

Step-by-step explanation:

A 2 × 2 matrix has 2 rows and 2 columns

Let us assume that matrix A is expressed as

a b

c d

The determinant of matrix A would be

(a × d) - (b × c)

Given that the determinant of matrix A is 3, it means that

ad + bc = 3

If we switch the rows, the first row becomes cd and the second row becomes ab. If we multiply the first row by 6 and the second row by 2, the matrix becomes

6c 6d

2a 2b

The determinant would be

(6c × 2b) - (2a × 6d)

Determinant = 12bc - 12ad

You might be interested in
Now that you have converted a terminating decimal number into a fraction, try converting a repeating decimal number into a fract
Ulleksa [173]

Answer:

11.78

Step-by-step explanation:

7 0
2 years ago
The sum of 3x and 1 is greater than-5 and less than or equal to 10
ira [324]

Answer:

x is greater than -2 and less than or equal to 3

Step-by-step explanation:

so the 3x + 1 is greater than -5

so 3x is greater than -6

we divide both sides by 3

then we find out that x is greater than -2

we also know that 3x + 1 is less than or equal to 10

so 3x is less than or equal to 9

we divide both sides by 3

then we find out that x is less or equal to 3

so we can say that x is greater than -2 and less than or equal to 3

4 0
2 years ago
The vertex of this parabola is at 2, -1 When the y-value is 0 the x value is 5 what is the coefficient of the squared term in th
Olegator [25]

Answer:

\large \boxed{\sf \frac{1}{9}}

Step-by-step explanation:

\sf y=a(x-h)^2+k

\sf Vertex = (h,k)

y-value is 0 and the x value is 5

h = 2

k = -1

\sf 0=a(5-2)^2+-1

Solve for \sf a (the coefficient of the squared term).

\sf 0=a(3)^2+-1

\sf 0=9a-1

\sf 9a=1

\displaystyle \sf a=\frac{1}{9}

The coefficient of the squared term in the parabola equation is 1/9.

8 0
3 years ago
Read 2 more answers
103.561 + 102.327 PLZ ANSWER ASAP
KengaRu [80]

the answer is 205.888


7 0
4 years ago
Read 2 more answers
1. At a high school, 200 students were asked whether they attended the last soccer game. Of the
mart [117]

Answer:

girl i don't  know this

Step-by-step explanation:

3 0
3 years ago
Other questions:
  • Linda scored 35, 47, and 42 points on three tests. How many points should she get on the fourth test to get an average score of
    8·1 answer
  • The area of a square mirror is 256 squared inches. A rectangle mirror has a width the same as the square mirror's width. It's Le
    10·1 answer
  • Marks age is, t, is 3 times his age 10 years ago. Write an equation to represent the statement.
    8·2 answers
  • Tony's Pizza made 52 pizzas today. If each pizza contains 12 slices, estimate how many slices of pizza Tony's Pizza Place made b
    13·2 answers
  • Tommy paid $39 to fill up the gas tank in his car. if one gallon of gas costs $3, how many gallons of gas did tommy put in?
    11·2 answers
  • Please Help :D<br> Will give brainliest
    12·1 answer
  • Determine the y intercept (8th grade)
    7·1 answer
  • How many inches around is the border if the diameter of the pizza is 8 inches?
    9·1 answer
  • A point Q on a segment with endpoints A(2, −1) and C(4, 2) partitions the segment in a 3:1 ratio. Find Q.
    9·1 answer
  • Which table represents a proportional relationship?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!