The scale factor of two similar swimming pools is 4:7. The amount of a chlorine mixture to be added is proportional to the volum
1 answer:
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The area of a circle in terms of the circle's radius 
is
Differentiating both sides with respect to
, you get
Differentiating both sides with respect to
Answer:
Step-by-step explanation:
Let the number be 'x'
Half a number =
Half a number increased by the quotient of p and t
Answer:
Option c, A square matrix
Step-by-step explanation:
Given system of linear equations are
Now to find the type of matrix can be formed by using this system
of equations
From the given system of linear equations we can form a matrix
Let A be a matrix
A matrix can be written by
A=co-efficient of x of 1st linear equation co-efficient of y of 1st linear equation constant of 1st terms linear equation
co-efficient of x of 2st linear equation co-efficient of y of 2st linear equation constant of 2st terms linear equation
co-efficient of x of 3st linear equation co-efficient of y of 3st linear equation constant of 3st terms linear equation
which is a matrix.
Therefore A can be written as
A=
Matrix "A" is a matrix so that it has 3 rows and 3 columns
A square matrix has equal rows and equal columns
Since matrix "A" has equal rows and columns Therefore it must be a square matrix
Therefore the given system of linear equation forms a square matrix