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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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Step-by-step explanation:

the speed is 130 miles / hour.

that means the train travels 130 miles in 1 hour.

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well, 130 × 6 = 780 miles.

formally, speed is "distance / time".

multiplying this by some time, we have then an expression of "(distance / time) × time", which is then simply "distance".

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3 0
3 years ago
A circle has a radius of 7x 9 y 5 cm. The area of a circle can be found using A = πr 2 . What is the area of this circle in squa
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