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
snow_lady [41]
3 years ago
8

Dakarai wrote the system of linear equations below.

Mathematics
2 answers:
vampirchik [111]3 years ago
6 0

Answer:

Step-by-step explanation:

Find the attachment below for answer and explanation.

aksik [14]3 years ago
5 0
<h2>Answer:</h2>

The matrix that Dakarai could have written is:

              A=\left[\begin{array}{ccc}7&8\\-3&9\end{array}\right]

<h2>Step-by-step explanation:</h2>

We know that the coefficient matrix of the system of equation of the type:

                ax+by=m

         and cx+dy=n

is given by:

A=\left[\begin{array}{ccc}a&b\\c&d\end{array}\right]

where the system is given by:

AX=B

where

X=\left[\begin{array}{ccc}x\\y\end{array}\right]

and

B=\left[\begin{array}{ccc}m\\n\end{array}\right]

Here we have the system of equations as:

                 7x+8y=28

     and      -3x+9y=-24

i.e.

the coefficient matrix is:

A=\left[\begin{array}{ccc}7&8\\-3&9\end{array}\right]

You might be interested in
Answer seven and eight please
dimaraw [331]
7.

The slope will be 200 since it increases by two hundred per week

The equation for this would be

y = 200x

8.

J would be the best table
3 0
3 years ago
In Andrew’s Furniture Shop, he builds bookshelves and tables. Each type of furniture takes him about the same time to make. He f
Paul [167]
A. You may set the variables in either order. But for argument sake, let's set as follows:

x = Amount of bookshelves
y = Amount of tables

B. Because of the amount of things you need to make, the following is an inequality using those variables.

x + y > 25

Plus you can determine a second inequality based on the amount of money that you have to spend. 

20x + 45y < 675

Finally you may also add in that each value must be greater than or equal to zero, since they cannot have negative tables. 

C. By solving the system and looking at basic constraints when graphed, you can see the feasible region has 4 vertices. 

(0,0)
(18, 7)
(0, 15)
(33.75, 0) or (33, 0) if you insist on rounding. 
8 0
3 years ago
Mean starting salary was $93,000, with a standard deviation of $17,000. What is the 95% confidence interval for the average star
SpyIntel [72]

Answer:

1

Step-by-step explanation:


4 0
4 years ago
W^2-8w-20 factor the polynomial.
Mademuasel [1]
Your answer would be (w+2)(w−10). If you want me to explain please don't hesitate to ask.
6 0
3 years ago
Read 2 more answers
NO LINKS OR ASSESSMENT!!!
Dafna1 [17]

Answer:

G(x)=2x+1 , vertical stretch by 2 units and shifted 1 unit up

Given :

Original function f(x)=x

To find :

Function G whose graph is a vertical stretch by 2  and move one unit up

We use the given function to for vertical stretch and shifting up

for Vertical stretch multiply the factor by f(x)

f(x) becomes  2f(x)

so the function becomes 2x

For moving up , we need to add the units at the end of the function

f(x)+1

2x+1

Hence, G(x)=2x+1

Learn more :  /brainly.com/question/4521517

Step-by-step explanation:

4 0
3 years ago
Other questions:
  • Which correctly gives the location of the point (7, –13)? A. Quadrant I B. Quadrant II C. Quadrant III D. Quadrant IV
    7·1 answer
  • Plot and connect the points A(-5,2),B(-2,-2),C(2,3),D(6,3), E(6,-5),F(-5,-5), and find the length of —
    5·1 answer
  • Is -5/3 irrational or rational?
    9·1 answer
  • In Exercise, sketch the graph of the function.<br> f(x) = 5x– 2
    9·1 answer
  • A circular tablecloth has a radius of 2.5 feet. Kyle is sewing a piece of ribbon around the edge of the tablecloth.
    7·2 answers
  • Construct a mathematical inequality or equation to express the following sentence:
    11·2 answers
  • 1.What are the values of the 6s in 36,621?
    5·1 answer
  • Graph y=-x+4 and -4x+2y=2
    9·1 answer
  • I need help with number 10 ASAP plzz
    12·1 answer
  • Answer for brainlist &amp; extra points! i can see if your answer is correct or not :)
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!