3 years ago

Twice the sum of a number and 400. Translate the verbal expression into an algebraic expression plz

Mathematics

1 answer:

djyliett [7]3 years ago

4 0

Answer:

(a+b) ^2=400

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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If the following system of equations was written as a matrix equation in the form AX = C, and matrix A was expressed in the form

IrinaVladis [17]

Answer: a-b+c+d =4

Step-by-step explanation:

The given system of equation is

$2x+8y=7\\4x-2y=9$

from this we have the following matrices

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