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
My name is Ann [436]
3 years ago
9

Use cramers rule to solve each system of equations :

Mathematics
1 answer:
Snowcat [4.5K]3 years ago
5 0

Answer:

just follow the rules

Step-by-step explanation:

Cramer's rule applies to the case where the coefficient determinant is nonzero. ... A simple example where all determinants vanish (equal zero) but the system is still incompatible is the 3×3 system x+y+z=1, x+y+z=2, x+y+z=3.

Write the system as a matrix equation. ...

Create the inverse of the coefficient matrix out of the matrix equation. ...

Multiply the inverse of the coefficient matrix in the front on both sides of the equation. ...

Cancel the matrix on the left and multiply the matrices on the right.

You might be interested in
Lucas and William are playing a video game and they have scored a total of 20,000 points. Lucas scored 1000 more than Williams.
const2013 [10]

Answer:

Hey there!

The system can be written as

l+w=20000

w+1000=l

Let me know if this helps :)

8 0
3 years ago
Select the term that does not describe the triangle. Select all that apply.
LenaWriter [7]

Answer:  I believe its obtuse

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
Hi, I am very stuck on questions 17 and 18. Can someone help please? Thanks
NISA [10]

9514 1404 393

Answer:

  17) x = 10√2

  18) x = 4√6

Step-by-step explanation:

These problems rely on your knowledge of the side ratios of special triangles

  45°-45°-90° triangle: 1 : 1 : √2

  30°-60°-90° triangle: 1 : √3 : 2

__

17) 5 is the short side of the isosceles right triangle, so its hypotenuse is 5√2. That length is the shortest side of the 30/60/90 triangle, so its longest side is 2 times that:

  x = 10√2

__

18) 8 is the longest side of the 30/60/90 triangle, so its long leg will be 8(√3)/2 = 4√3. The hypotenuse of the isosceles right triangle is √2 times that, so ...

  x = (4√3)(√2)

  x = 4√6

6 0
3 years ago
50 POINTSSSS!!!!!!! HELP ASAP<br><br> DONT SCAM PLS
Anit [1.1K]

The factorization of the expression 36x⁴y³ - 16x³y is 4x³y(9xy² - 4)

<h3>Factorization</h3>

Factorization or factoring is defined as the breaking or decomposition of an entity (for example a number, a matrix, or a polynomial) into a product of another entity, or factors, which when multiplied together give the original number. Factorization of an algebraic expression means writing the given expression as a product of its factors. These factors can be numbers, variables, or an algebraic expression.

To the factor, a number means to break it up into numbers that can be multiplied to get the original number.

In the given expression, 36x⁴y³ - 16x³y can be factorized as

36x⁴y³ - 16x³y = 4x³y(9xy² - 4)

The common factor in the expression is 4x³y

Learn more on factorization here;

brainly.com/question/8021175

#SPJ1

3 0
1 year ago
PLEASE PLEASE HELPPPP
Anastaziya [24]
You could expect about 1,248 students to play at least 4 hours every week.

Our tables have 100 students involved. All but 4 of the students are in the category of at least 4 hours. That is 96%.

Therefore, we simply need to multiply 0.96 by 1300 to get the estimated amount.

0.96 x 1300 = 1248
7 0
3 years ago
Read 2 more answers
Other questions:
  • What is the solution to 2x2+8x=x2-16?
    15·1 answer
  • 7k+9k in simplified expression
    8·2 answers
  • How many significant figures are there in 0.04720?
    11·1 answer
  • I need help with #4 plzz
    15·2 answers
  • HELP!!!!!!!!!!!!!!!!!!!!!!! CAN SOMEONE ANSWER ALL OF THESE.
    12·1 answer
  • Help pls btw I will give brainly
    8·1 answer
  • Six hundred six and six hundredths in standard form.
    9·1 answer
  • What value is an x worth
    14·1 answer
  • Consider the line 7x+6y=5.
    15·1 answer
  • Please help me on this, I see that the growth is increasing but I don’t know the meanings
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!