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
puteri [66]
2 years ago
5

Kamal wrote the augmented matrix below to represent a system of equations.

Mathematics
2 answers:
atroni [7]2 years ago
8 0

Answer:

A

Step-by-step explanation:

edge

Sergio039 [100]2 years ago
7 0

Answer:

\left[\begin{array}{cccc}1&0&1&|-1\\-3&-9&3&|27\\3&2&0&|-2\end{array}\right]

Step-by-step explanation:

Given [Missing from the question]

\left[\begin{array}{cccc}1&0&1&|-1\\1&3&-1&|-9\\3&2&0&|-2\end{array}\right]

Required

R_2 \to -3R_2

This implies that, we form a new matrix where the second row of the new matrix is a product of -3 and the second row of the previous matrix.

So, we have:

Initial =\left[\begin{array}{cccc}1&0&1&|-1\\1&3&-1&|-9\\3&2&0&|-2\end{array}\right]

New =\left[\begin{array}{cccc}1&0&1&|-1\\-3*1&-3*3&-3*-1&|-3*-9\\3&2&0&|-2\end{array}\right]

New =\left[\begin{array}{cccc}1&0&1&|-1\\-3&-9&3&|27\\3&2&0&|-2\end{array}\right]

You might be interested in
Which function represents the sequence -5.5, -4.75 -4,-3.25... ?​
kumpel [21]
The answer I think should be
C main
3 0
3 years ago
How do you do this??
ruslelena [56]

Answer:

bxc+ax32=0

Step-by-step explanation:

7 0
2 years ago
There are 5000 undergraduates registered at a certain college. Of them, 448 are taking one course, are taking two courses, 675 a
olga55 [171]

Answer:

Step-by-step explanation:

Hello!

There are some values missing, so I'll find the probability distribution using others as example. Afterwards you can calculate the ones corresponding to this exercise following the same steps.

Considering there are 5000 undergraduates registered in the college.

465 are taking one course

658 are taking two courses

566 are taking three courses

1877 are taking four courses

1344 are taking five courses

90 are taking six courses

First you have to define the variable of interest. To identify it you have to ask yourself the following question: what is the characteristic of this population that is being measured?

The answer is "the number of courses an undergraduate is taking" and this will be the study variable X

X can take values from 1 to 6 courses.

To calculate the probability of each value of X, you have to divide the "number of students taking Xi courses" by "total number of students registered in the college"

For

X=1

P(1)= 465/5000= 0.093

X=2

P(2)= 658/5000= 0.1316

X=3

P(3)= 566/5000= 0.1132

X=4

P(4)= 1877/5000= 0.3754

X=5

P(5)= 1344/5000= 0.2688

X=6

P(6)= 90/5000= 0.018

For this to be a probability distribution the following condition should be met:

F(X)= ∑P(X) = 1

In this example: 0.093 + 0.1316 + 0.1132 + 0.3754 + 0.2688 + 0.018 = 1

I hope this helps!

7 0
3 years ago
What is The simple interest earned on a deposit of $3000 at 6% for five years
Norma-Jean [14]

Answer: $900

Step-by-step explanation:

The simple interest is calculated using the formula:

(P × R × T)/100

where,

P = Principal = $3000

R = Rate = 6%

T = Time = 5 years

Simple Interest = (P × R × T)/100

= ($3000 × 6 × 5)/100

= 90000/100

= $900

Therefore, the simple interest is $900

4 0
2 years ago
What is the poinet-slope form of the equation for the line in the graph?​
Ne4ueva [31]

Answer:

y -5 = \frac{9}{13}(x - 7)

Step-by-step explanation:

Given :

Two points are given in graph (-6, -4) and {7, 5).

The point-slope form of the equation of a straight line is:

y -y_{1} = m(x - x_{1})------------(1)

Let (x_{1}, y_{1})=(7,5) and (x_{2}, y_{2})=(-6,-4)

The slope of the line m=\frac{y_{2}- y_{1}}{x_{2}- x_{1}}

Put all known value in above equation.

m=\frac{-4- 5}{-6- 7}

m=\frac{-9}{-13}

m=\frac{9}{13}

The slope of the line m=\frac{9}{13}

We know m, and also know that (x_{1}, y_{1})=(7,5), so we put these value in equation 1.

y -5 = \frac{9}{13}(x - 7)

Therefore, the equation of the line is y -5 = \frac{9}{13}(x - 7).

6 0
2 years ago
Other questions:
  • i am greater than 3 hundreds, 2tens, and 2 ones. I am less than 3 hundreds, 2tens, 4ones. what number am i?
    9·2 answers
  • Darius deposits $300 into a new savings account. The account earns at a rate of 2.18% every 6 months. How much money does Darius
    10·1 answer
  • How many solutions does the system below have?<br>3<br>y = -x + 8<br>4<br>3<br>y = -x - 5<br>4​
    6·1 answer
  • (solve) i dont get it
    13·1 answer
  • Mr. Luong makes fifteen dollars an hour. Which equation models the situation
    9·1 answer
  • Insert parentheses in expression 2 so that it has a value of 4. Then show why your expression has a value of 4.
    9·1 answer
  • Find the value of x so that the function has the given value.<br>p(x) = 6x - 12; p(x) = 18​
    5·1 answer
  • Brady recorded the number and color of cars in the parking lot. 45% of the cars in the parking lot were white. If Brady counted
    10·2 answers
  • Sorry this is probably easy but i need help
    15·1 answer
  • Pls help I will put brainlist if u help me told nd thank u
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!