Why are equivalent equations important when solving a system using linear combination?

Mathematics

1 answer:

TiliK225 [7]3 years ago

7 0

Answer:

Linear equations are an important tool in science and many everyday applications. They allow scientist to describe relationships between two variables in the physical world, make predictions, calculate rates, and make conversions, among other things. Graphing linear equations helps make trends visible.

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tigry1 [53]

Answer:

24 + 6

Step-by-step explanation:

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3 years ago

Solve the equation. n + 1.5 = 13.8<br><br> n =??? Can somebody also answer this

Andre45 [30]

Answer:

n = 12.3

Step-by-step explanation:

No prob

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2 years ago

Find the midpoint of the line segment joining the points (−1,−2) and (−3,9).

FromTheMoon [43]

Answer:

Step-by-step explanation:

Midpoint = (x₁+ x₂)/2 , (y₁ +y₂)/2

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2 years ago

Which matrix is equal to P + Q?

Afina-wow [57]

Answer:
$\begin{bmatrix}-1.1 & 9.5\\-5.7 & 0.8\\6.1 & 0.7\end{bmatrix}$

------------------------------------

Add up the corresponding elements

Row1,Column1: 6.1+(-7.2) = -1.1
Row1,Column2: 1.9+7.6 = 9.5
Row2,Column1: -7.5+1.8 = -5.7
Row2,Column2: 2.2+(-1.4) = 0.8
Row3,Column1: 3.8+2.3 = 6.1
Row3,Column2: -1.4+2.1 = 0.7

So that's why the answer is
$\begin{bmatrix}-1.1 & 9.5\\-5.7 & 0.8\\6.1 & 0.7\end{bmatrix}$

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3 years ago

The figure shown represents the pattern of a glass ceiling. Based on the markings shown, which triangles can be proven congruent

umka2103 [35]

Answer:

D) ΔPNK ≅ ΔIKN by SAS

Step-by-step explanation:

The Side Angle Side (SAS) postulate states that if two sides and the included angle of one triangle are congruent to two sides and the included angle of another triangle, then these two triangles are congruent.

In this case, the congruent sides are IK with NP and NK with itself. And the included angle is ∠K in ΔIKN and ∠N in ΔPNK.

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3 years ago