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
soldier1979 [14.2K]
3 years ago
10

Consider the Matrix shown below:

Mathematics
1 answer:
shepuryov [24]3 years ago
3 0

Answer:

The value of  B_{2,4} - B_{3,2}  is 3 ⇒ 2nd

Step-by-step explanation:

The dimensions of any matrix are (m × n), where

  • m is the number of its row
  • n is the number of its column

Ex: Matrix A of dimensions (2 × 3) has 2 rows and 3 columns, where

A_{1,1} means the element in the 1st row and 1st column

A_{1,2} means the element in the 1st row and 2nd column

A_{1,3} means the element in the 1st row and 3rd column

A_{2,1} means the element in the 2nd row and 1st column

A_{2,2} means the element in the 2nd row and 2nd column

A_{2,3} means the element in the 2nd row and 3rd column

Now lets solve the problem

∵ The matrix B has 3 rows

∴ m = 3

∵ The matrix B has 4 columns

∴ n = 4

∴ The dimensions of matrix B are (3 × 4)

∵ B_{2,4} means the element in the 2nd row and 4th column

∴  B_{2,4} = 9

∵ B_{3,2} means the element in the 3rd row and 2nd column

∴  B_{3,2} = 6

- Find the value of B_{2,4} - B_{3,2}

∵ B_{2,4} - B_{3,2} = 9 - 6

∴ B_{2,4} - B_{3,2} = 3

You might be interested in
Urgent please help quick!!!
Radda [10]

Answer:

x=-1\\y=-1

Step-by-step explanation:

5x+5y=-10\\3x-7y=4

Let's solve the first equation for either x or y. I'll do it for x.

5x+5y=-10

Begin by subtracting 5y.

5x=-5y-10

Now divide by 5.

x=\frac{-5y}{5}-\frac{10}{5}

Simplify:

x=-y-2

Now substitute x in the second equation for this value.

3x-7y=4\\3(-y-2)-7y=4

Distribute;

-3y-6-7y=4

Add 6

-3y-7y=4+6

Combine like terms;

-10y=10

Divide by -10.

y=\frac{10}{-10}\\ y=-1

-----------------------------------------------------------------------------------------------------------

Take this value of y and replace it in the first equation to find the value of x.

5x+5y=-10\\5x+5(-1)=-10\\5x-5=-10\\5x=-10+5\\5x=-5\\x=\frac{-5}{5}\\ x=-1

5 0
2 years ago
Name the place value to which each number was rounded 0.982to 0.98
Kryger [21]
The Hundredths place because 2 is in the thousandths place. 5 or more change the score, 4 or less let it rest. 8 remained the same because 2 is less than 4.
8 0
3 years ago
The area of a rectangular wall of a barn is 32 square feet. It’s length is 4 feet longer than the width. Find the length and wid
Gnom [1K]

Answer:

Step-by-step explanation:

Givens

Area = L * w

w = x

l = x  + 4

Area = 32

Solution

32 = x(x + 4)

32 = x^2 + 4x

x^2 + 4x - 32

(x + 8)(x - 4)

Only x - 4 is going to make any sense

x - 4 = 0

x = 4

The width is 4

The length is 4 + 4 = 8

4*8 = 32 which is the area.

6 0
3 years ago
What is the effect on the area of a rectangle if the dimensions are doubled?
alisha [4.7K]
Let x be the length and y be the width of a rectangle.
Area = xy

When x and y are doubled
Length = 2x and Width = 2y
Area = 2x x 2y
Area = 4xy

-------------------------------------------------------------------------------------------------
Answer: When the dimension is doubled, the area is 4 times the original.
-------------------------------------------------------------------------------------------------
8 0
3 years ago
What is 1 1/3 as a improper fraction
Mumz [18]
Okay so for this all you have to do is add 1 to 1/3.

However, to do this you first need to convert 1 into a fraction.

1 = 3/3
3/3 + 1/3 = 4/3

Hope this helps :)
8 0
2 years ago
Other questions:
  • What is the simplest form of 7/10 + 1/5
    12·2 answers
  • What is 84/24 reduced to lowest terms?
    13·1 answer
  • the ratios of girls to boys in a student basketball league is 5:6. juan says that there must be exactly 11 students in the leagu
    6·2 answers
  • PLEASE HELP! The length of time a full length movie runs from opening to credits is normally distributed with a mean of 1.9 hour
    6·1 answer
  • A truck covers a distance of 150 km at a certain average speed and then covers another 200 km at an average speed which is 20 km
    12·1 answer
  • 12,000 miles; 5% decrease
    12·1 answer
  • Can somebody help with this question please ?
    5·1 answer
  • What is the coefficient for the variable d
    8·1 answer
  • Lulah is buying beach balls for her beach party. each package contains 6 beach balls
    10·1 answer
  • Write the algebraic expression that matches each graph.
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!