HURRY IM BEING TIMED

Mathematics

2 answers:

Maru [420]2 years ago

8 0

Answer:

B=39.78

Step-by-step explanation:

Solnce55 [7]2 years ago

6 0

Answer:b

hope this help:)

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iVinArrow [24]

$\fbox{Solution by using Matrix}$

$\text{Linear Equation} = -8x-8y=0 , -8x+2y=-20$

$\text{Rewrite the linear equations above as a matrix}$

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$\text{Apply to Row2 : Row2 + Row1}$

$\left[\begin{array}{ccc}8&-8&0\\-8&-6&-20\\\end{array}\right]$

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$\left[\begin{array}{ccc}8&-8&0\\0&1&10/3\\\end{array}\right]$

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$\left[\begin{array}{ccc}1&0&10/3\\0&1&10/3\\\end{array}\right]$

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