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SOVA2 [1]
3 years ago
12

Drina wrote the system of linear equation below.

Mathematics
2 answers:
dlinn [17]3 years ago
7 0

Answer:

B

Step-by-step explanation:

GuDViN [60]3 years ago
5 0

Answer:

(B) a square matrix

Step-by-step explanation:

The given Equations are:

3x-2y=-2,

7x+3y=26 and

-x-11y=-46

Which can be written as:

\left[\begin{array}{ccc}3&-2&2\\7&3&-26\\-1&-11&46\end{array}\right]

Thus, it is a matrix with 3 number of rows and 3 number of columns, therefore the matrix which has same number of rows and columns is a square matrix, thus, a square matrix can be form using the given system of linear equations.

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Which figure is described below?
IRINA_888 [86]

Answer:

Option A.

Step-by-step explanation:

Circle contains all points in a plane that are equidistant from a point, i.e., center of the circle.

The locus of points 9 units from the  point (-1,3) on the coordinate plane.

It means, the figure represents the set of all points which are 9 units from the  point (-1,3).

So, the given describes a circle with of 9 units and center at (-1,3).

Therefore, the correct option is A.

5 0
3 years ago
-5x - 3y = -168<br> X = 5y
Mandarinka [93]

Answer:

-9  thats what my friend told me

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
I ready scientific notation help
Airida [17]

The required value is 2\times10^9

Step-by-step explanation:

Weight of ants = 4\times10^{-3}

Weight of elephant= 8\times10^6

We need to find, the total weight of about how many ants equals to the weight of an oversized elephant.

The equation given is:

4\times10^{-3} \times a = 8\times10^6

We need to find a:

Solving:

4\times10^{-3} \times a = 8\times10^6\\a=\frac{8\times10^6}{4\times10^{-3}}\\if \,\,10^a/10^-b \,\,then\,\, 10^{a+b}\\a=2\times10^{6+3} \\a=2\times10^9

So, the required value is 2\times10^9

Keywords: Scientific Notation

Learn more about Scientific Notation at:

  • brainly.com/question/11984920
  • brainly.com/question/5565320
  • brainly.com/question/5756316

#learnwithBrainly

4 0
3 years ago
A bike store marks up the wholesale cost of all bikes they sell by 30%. Calvin wants to buy a bike that has a price tag of 123.5
dsp73
Answer:
$37.50

Explanation of answer:

You divide 30 by 100 and you will get 0.3 then you times 123.50 by 0.3 and you will get the answer
5 0
2 years ago
Omar's gas tank is 1/10 full. After he buys 6 gallons of gas, it is 2/5 full. How many gallons can Omar's tank hold?
castortr0y [4]
1/10x + 6 = 2/5x
6 = 2/5x - 1/10x
6 = 4/10x - 1/10x
6 = 3/10x
6 / (3/10) = x
6 * 10/3 = x
60/3 = x
20 = x <=== the gas tank can hold 20 gallons
4 0
3 years ago
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