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WINSTONCH [101]
3 years ago
15

Which coefficient matrix represents a system of linear equations that has a unique solution?

Mathematics
2 answers:
Westkost [7]3 years ago
7 0
<span>the system has a unique solution if and only if the determinant of the coefficient matrix does not equal zero. </span>
Aloiza [94]3 years ago
7 0
It only works when the coefficient it's not 0
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I need the answer please
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3 years ago
What are the x- and y- coordinates of point E, which partitions the directed line segment from J to K into a ratio of 1:4?
Aleks [24]

The x- and y- coordinates of point E, which partitions the directed line segment from J to K into a ratio of 1:4 is (17, 11)

<h3>Midpoint of coordinate points</h3>

The midpoint of a line is the point that bisects or divides the line into two equal parts

If the line JK is partitioned into the ratio 1:4 with the following coordinates

J(-15, -5) and K(25, 15)

Using the expression below;

M(x, y) =[mx1+nx2/m+n, my1+ny2/m+n]

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M(x, y) =[1(-15)+4(25)/4+1, 1(-5)+4(15)/1+4]

M(x, y) = [(85)/5, 55/5]

M(x, y) = (17, 11)

Hence the x- and y- coordinates of point E, which partitions the directed line segment from J to K into a ratio of 1:4 is ((17, 11)

Learn more on midpoint of a line here: brainly.com/question/5566419

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2 years ago
A water tower is used to store fire fighting water at an industrial plant. The tank on top of the tower is in the shape of a cyl
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V=hπr^2

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