Compute the product using the methods below. If a product is undefined, explain why. A. The definition where Ax is the linear combination of the columns of A using the corresponding entries in x as weights. B. The row-vector rule for computing Ax. 1. Set up the linear combination of the columns of A using the corresponding entries in x as weights.
A. The matrix-vector Ax is not defined because the number of columns in matrix A does not match the number of entries in the vector x.
B. The matrix-vector Ax is not defined because the number of rows in matrix A does not match the number of entries in the vector x.
2. Set up the product Ax using the row-vector rule. Select the correct choice below and, if necessary, fill in the answer boxes to complete your choice.
A. Do not simplify.
B. Do not simplify.
C. The matrix-vector Ax is not defined because the row-vector rule states that the number of columns in matrix A must match the number of entries in the vector.
D. The matrix vector Ax s not defined because the ro vector rule states that the number o rows in matrix A must match he number o entries in the vector x

the clues that signal the reader should change tone are the punctuation marks, the grammatical signs. for example, the quotation marks at the beginning of something someone else said literally or the exclamation marks.

the tone of the first line of dialogue until "gettysburg" is a kind tone, a tone of advise. the narrator is trying to the other person in doing something he or she obviously is finding hard to do by giving a piece of advise and bringing up a memory of a successful similar case.

the clue that the reader understand how to read the word "bang" is the exclamation mark. it gives the word a surprise tone, a strong accent.

the best tone for reading the word "bang" is an exciting tone, a surprise one, even a loud one.

the words that should be read with a formal tone are the ones that give factual information. the sentence: mister lincoln couldn't think of anything to say at the gettysburg" gives information about an event and it needs to be read formally, also, when the narrator wants to transmit calmness, a formal and slow tone is needed, because people also transmit messages with the vibrations of our voices and tones.

answer:

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times both sides by 2, times () by 8, add alile terms, move terms, add alike and caculate divide both sides by 3