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3 years ago

How to use integers in word problems

Mathematics

1 answer:

laila [671]3 years ago

3 0

You can simply use temperature below 0 and above 0 and ask the difference between the first and second temperature.

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Which operations can be applied to a matrix in the process of Gauss-Jordan elimination?

alexandr402 [8]

Operations that can be applied to a matrix in the process of Gauss-Jordan elimination are options 1,2 and 4.

<h3 /><h3>What is gauss Jordan's elimination?</h3>

Gauss-Jordan Elimination is a matrix-based technique for solving linear equations or determining a matrix's inverse.

When using Gauss Jordan elimination, the following operations may be carried out on a matrix:

1. Replacing a row with twice that row

2. Replacing a row with the sum of that row and another row

3. Swapping row

The optional row(or column) procedures that can be employed are:

1. Alternate any two rows (or columns)

2. Scalar multiples of one row (column) are added or subtracted from another row (column) occurs when a row is substituted with the sum of another row and that row.

3. Multiply any row (or column) fully by a nonzero scalar, as seen below by substituting a row with two rows.

Hence, Gauss-Jordan elimination includes options 1,2, and 4.

To learn more about the gauss Jordan's elimination refers to;

brainly.com/question/12090959

#SPJ1

5 0

2 years ago

A test is worth 80 points. Multiple-choice questions are worth 2 points, and

gavmur [86]

Answer:

<u>There are 10 multiple-choice questions and 15 short-answer questions in the test</u>

Step-by-step explanation:

1. Let's review the information given to us to answer the question correctly:

Test worth 80 points

Multiple-choice questions are worth 2 points

Short-answer questions are worth 4 points

Multiple-choice questions + Short-answer questions = 25

2. How many multiple-choice questions are there?

Let's solve this problem, this way:

m = Multiple-choice questions

s = Short-answer questions

Our equations system is:

m + s = 25

2m + 4s = 80

Solving for m in the 1st equation:

m + s = 25

m = 25 - s

Substituting m in the 2nd equation and solving for s:

2m + 4s = 80

2 * ( 25 - s) + 4s = 80

50 - 2s + 4s = 80

2s = 80 - 50

2s = 30

Substituting s in the 1st equation and solving for m:

m = 25 - 15

<u>There are 10 multiple-choice questions and 15 short-answer questions in the test</u>

4 0

3 years ago

8x(3x+4) distributive property rewrite each expression in equivalent form

Morgarella [4.7K]

24x^2+32x is going to be when you distribute the 8x into the parentheses.

3 0

3 years ago

Read 2 more answers

Find the area of a circle with a circumference of<br> units.

Diano4ka-milaya [45]

This is the formula for circumference of circle

8 0

2 years ago

the units digit of a two-digit number is twice the tens digit. If the digits are reversed, the new number is 9 less than the ori

Anton [14]

Answer:

Step-by-step explanation:

Here is the correct and complete question: The units digit of a two-digit number is twice the tens digit. If the digits are reversed, the new number is 9 less than twice the original number. What is the original number?

Lets assume the original number be"10y+x". (x is unit digit and y is 10th digit)

∴ if number is reversed then resulting number be "10x+y".

As given: x= 2y

and $10x+y= 2(10y+x)-9$